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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /tools/testing/selftests/kvm/include/x86_64 | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/kvm/include/x86_64')
-rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/apic.h | 93 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/evmcs.h | 1279 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/hyperv.h | 346 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/mce.h | 25 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/processor.h | 1259 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/svm.h | 326 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/svm_util.h | 65 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/ucall.h | 13 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/vmx.h | 577 |
9 files changed, 3983 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/x86_64/apic.h b/tools/testing/selftests/kvm/include/x86_64/apic.h new file mode 100644 index 0000000000..bed316fdec --- /dev/null +++ b/tools/testing/selftests/kvm/include/x86_64/apic.h @@ -0,0 +1,93 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * tools/testing/selftests/kvm/include/x86_64/apic.h + * + * Copyright (C) 2021, Google LLC. + */ + +#ifndef SELFTEST_KVM_APIC_H +#define SELFTEST_KVM_APIC_H + +#include <stdint.h> + +#include "processor.h" + +#define APIC_DEFAULT_GPA 0xfee00000ULL + +/* APIC base address MSR and fields */ +#define MSR_IA32_APICBASE 0x0000001b +#define MSR_IA32_APICBASE_BSP (1<<8) +#define MSR_IA32_APICBASE_EXTD (1<<10) +#define MSR_IA32_APICBASE_ENABLE (1<<11) +#define MSR_IA32_APICBASE_BASE (0xfffff<<12) +#define GET_APIC_BASE(x) (((x) >> 12) << 12) + +#define APIC_BASE_MSR 0x800 +#define X2APIC_ENABLE (1UL << 10) +#define APIC_ID 0x20 +#define APIC_LVR 0x30 +#define GET_APIC_ID_FIELD(x) (((x) >> 24) & 0xFF) +#define APIC_TASKPRI 0x80 +#define APIC_PROCPRI 0xA0 +#define APIC_EOI 0xB0 +#define APIC_SPIV 0xF0 +#define APIC_SPIV_FOCUS_DISABLED (1 << 9) +#define APIC_SPIV_APIC_ENABLED (1 << 8) +#define APIC_IRR 0x200 +#define APIC_ICR 0x300 +#define APIC_LVTCMCI 0x2f0 +#define APIC_DEST_SELF 0x40000 +#define APIC_DEST_ALLINC 0x80000 +#define APIC_DEST_ALLBUT 0xC0000 +#define APIC_ICR_RR_MASK 0x30000 +#define APIC_ICR_RR_INVALID 0x00000 +#define APIC_ICR_RR_INPROG 0x10000 +#define APIC_ICR_RR_VALID 0x20000 +#define APIC_INT_LEVELTRIG 0x08000 +#define APIC_INT_ASSERT 0x04000 +#define APIC_ICR_BUSY 0x01000 +#define APIC_DEST_LOGICAL 0x00800 +#define APIC_DEST_PHYSICAL 0x00000 +#define APIC_DM_FIXED 0x00000 +#define APIC_DM_FIXED_MASK 0x00700 +#define APIC_DM_LOWEST 0x00100 +#define APIC_DM_SMI 0x00200 +#define APIC_DM_REMRD 0x00300 +#define APIC_DM_NMI 0x00400 +#define APIC_DM_INIT 0x00500 +#define APIC_DM_STARTUP 0x00600 +#define APIC_DM_EXTINT 0x00700 +#define APIC_VECTOR_MASK 0x000FF +#define APIC_ICR2 0x310 +#define SET_APIC_DEST_FIELD(x) ((x) << 24) + +void apic_disable(void); +void xapic_enable(void); +void x2apic_enable(void); + +static inline uint32_t get_bsp_flag(void) +{ + return rdmsr(MSR_IA32_APICBASE) & MSR_IA32_APICBASE_BSP; +} + +static inline uint32_t xapic_read_reg(unsigned int reg) +{ + return ((volatile uint32_t *)APIC_DEFAULT_GPA)[reg >> 2]; +} + +static inline void xapic_write_reg(unsigned int reg, uint32_t val) +{ + ((volatile uint32_t *)APIC_DEFAULT_GPA)[reg >> 2] = val; +} + +static inline uint64_t x2apic_read_reg(unsigned int reg) +{ + return rdmsr(APIC_BASE_MSR + (reg >> 4)); +} + +static inline void x2apic_write_reg(unsigned int reg, uint64_t value) +{ + wrmsr(APIC_BASE_MSR + (reg >> 4), value); +} + +#endif /* SELFTEST_KVM_APIC_H */ diff --git a/tools/testing/selftests/kvm/include/x86_64/evmcs.h b/tools/testing/selftests/kvm/include/x86_64/evmcs.h new file mode 100644 index 0000000000..901caf0e09 --- /dev/null +++ b/tools/testing/selftests/kvm/include/x86_64/evmcs.h @@ -0,0 +1,1279 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * tools/testing/selftests/kvm/include/x86_64/evmcs.h + * + * Copyright (C) 2018, Red Hat, Inc. + * + */ + +#ifndef SELFTEST_KVM_EVMCS_H +#define SELFTEST_KVM_EVMCS_H + +#include <stdint.h> +#include "hyperv.h" +#include "vmx.h" + +#define u16 uint16_t +#define u32 uint32_t +#define u64 uint64_t + +#define EVMCS_VERSION 1 + +extern bool enable_evmcs; + +struct hv_enlightened_vmcs { + u32 revision_id; + u32 abort; + + u16 host_es_selector; + u16 host_cs_selector; + u16 host_ss_selector; + u16 host_ds_selector; + u16 host_fs_selector; + u16 host_gs_selector; + u16 host_tr_selector; + + u16 padding16_1; + + u64 host_ia32_pat; + u64 host_ia32_efer; + + u64 host_cr0; + u64 host_cr3; + u64 host_cr4; + + u64 host_ia32_sysenter_esp; + u64 host_ia32_sysenter_eip; + u64 host_rip; + u32 host_ia32_sysenter_cs; + + u32 pin_based_vm_exec_control; + u32 vm_exit_controls; + u32 secondary_vm_exec_control; + + u64 io_bitmap_a; + u64 io_bitmap_b; + u64 msr_bitmap; + + u16 guest_es_selector; + u16 guest_cs_selector; + u16 guest_ss_selector; + u16 guest_ds_selector; + u16 guest_fs_selector; + u16 guest_gs_selector; + u16 guest_ldtr_selector; + u16 guest_tr_selector; + + u32 guest_es_limit; + u32 guest_cs_limit; + u32 guest_ss_limit; + u32 guest_ds_limit; + u32 guest_fs_limit; + u32 guest_gs_limit; + u32 guest_ldtr_limit; + u32 guest_tr_limit; + u32 guest_gdtr_limit; + u32 guest_idtr_limit; + + u32 guest_es_ar_bytes; + u32 guest_cs_ar_bytes; + u32 guest_ss_ar_bytes; + u32 guest_ds_ar_bytes; + u32 guest_fs_ar_bytes; + u32 guest_gs_ar_bytes; + u32 guest_ldtr_ar_bytes; + u32 guest_tr_ar_bytes; + + u64 guest_es_base; + u64 guest_cs_base; + u64 guest_ss_base; + u64 guest_ds_base; + u64 guest_fs_base; + u64 guest_gs_base; + u64 guest_ldtr_base; + u64 guest_tr_base; + u64 guest_gdtr_base; + u64 guest_idtr_base; + + u64 padding64_1[3]; + + u64 vm_exit_msr_store_addr; + u64 vm_exit_msr_load_addr; + u64 vm_entry_msr_load_addr; + + u64 cr3_target_value0; + u64 cr3_target_value1; + u64 cr3_target_value2; + u64 cr3_target_value3; + + u32 page_fault_error_code_mask; + u32 page_fault_error_code_match; + + u32 cr3_target_count; + u32 vm_exit_msr_store_count; + u32 vm_exit_msr_load_count; + u32 vm_entry_msr_load_count; + + u64 tsc_offset; + u64 virtual_apic_page_addr; + u64 vmcs_link_pointer; + + u64 guest_ia32_debugctl; + u64 guest_ia32_pat; + u64 guest_ia32_efer; + + u64 guest_pdptr0; + u64 guest_pdptr1; + u64 guest_pdptr2; + u64 guest_pdptr3; + + u64 guest_pending_dbg_exceptions; + u64 guest_sysenter_esp; + u64 guest_sysenter_eip; + + u32 guest_activity_state; + u32 guest_sysenter_cs; + + u64 cr0_guest_host_mask; + u64 cr4_guest_host_mask; + u64 cr0_read_shadow; + u64 cr4_read_shadow; + u64 guest_cr0; + u64 guest_cr3; + u64 guest_cr4; + u64 guest_dr7; + + u64 host_fs_base; + u64 host_gs_base; + u64 host_tr_base; + u64 host_gdtr_base; + u64 host_idtr_base; + u64 host_rsp; + + u64 ept_pointer; + + u16 virtual_processor_id; + u16 padding16_2[3]; + + u64 padding64_2[5]; + u64 guest_physical_address; + + u32 vm_instruction_error; + u32 vm_exit_reason; + u32 vm_exit_intr_info; + u32 vm_exit_intr_error_code; + u32 idt_vectoring_info_field; + u32 idt_vectoring_error_code; + u32 vm_exit_instruction_len; + u32 vmx_instruction_info; + + u64 exit_qualification; + u64 exit_io_instruction_ecx; + u64 exit_io_instruction_esi; + u64 exit_io_instruction_edi; + u64 exit_io_instruction_eip; + + u64 guest_linear_address; + u64 guest_rsp; + u64 guest_rflags; + + u32 guest_interruptibility_info; + u32 cpu_based_vm_exec_control; + u32 exception_bitmap; + u32 vm_entry_controls; + u32 vm_entry_intr_info_field; + u32 vm_entry_exception_error_code; + u32 vm_entry_instruction_len; + u32 tpr_threshold; + + u64 guest_rip; + + u32 hv_clean_fields; + u32 padding32_1; + u32 hv_synthetic_controls; + struct { + u32 nested_flush_hypercall:1; + u32 msr_bitmap:1; + u32 reserved:30; + } __packed hv_enlightenments_control; + u32 hv_vp_id; + u32 padding32_2; + u64 hv_vm_id; + u64 partition_assist_page; + u64 padding64_4[4]; + u64 guest_bndcfgs; + u64 guest_ia32_perf_global_ctrl; + u64 guest_ia32_s_cet; + u64 guest_ssp; + u64 guest_ia32_int_ssp_table_addr; + u64 guest_ia32_lbr_ctl; + u64 padding64_5[2]; + u64 xss_exit_bitmap; + u64 encls_exiting_bitmap; + u64 host_ia32_perf_global_ctrl; + u64 tsc_multiplier; + u64 host_ia32_s_cet; + u64 host_ssp; + u64 host_ia32_int_ssp_table_addr; + u64 padding64_6; +} __packed; + +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE 0 +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP BIT(0) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP BIT(1) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2 BIT(2) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1 BIT(3) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC BIT(4) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT BIT(5) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY BIT(6) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN BIT(7) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR BIT(8) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT BIT(9) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC BIT(10) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1 BIT(11) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2 BIT(12) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER BIT(13) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1 BIT(14) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ENLIGHTENMENTSCONTROL BIT(15) +#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL 0xFFFF + +#define HV_VMX_SYNTHETIC_EXIT_REASON_TRAP_AFTER_FLUSH 0x10000031 + +extern struct hv_enlightened_vmcs *current_evmcs; + +int vcpu_enable_evmcs(struct kvm_vcpu *vcpu); + +static inline void evmcs_enable(void) +{ + enable_evmcs = true; +} + +static inline int evmcs_vmptrld(uint64_t vmcs_pa, void *vmcs) +{ + current_vp_assist->current_nested_vmcs = vmcs_pa; + current_vp_assist->enlighten_vmentry = 1; + + current_evmcs = vmcs; + + return 0; +} + +static inline bool load_evmcs(struct hyperv_test_pages *hv) +{ + if (evmcs_vmptrld(hv->enlightened_vmcs_gpa, hv->enlightened_vmcs)) + return false; + + current_evmcs->revision_id = EVMCS_VERSION; + + return true; +} + +static inline int evmcs_vmptrst(uint64_t *value) +{ + *value = current_vp_assist->current_nested_vmcs & + ~HV_X64_MSR_VP_ASSIST_PAGE_ENABLE; + + return 0; +} + +static inline int evmcs_vmread(uint64_t encoding, uint64_t *value) +{ + switch (encoding) { + case GUEST_RIP: + *value = current_evmcs->guest_rip; + break; + case GUEST_RSP: + *value = current_evmcs->guest_rsp; + break; + case GUEST_RFLAGS: + *value = current_evmcs->guest_rflags; + break; + case HOST_IA32_PAT: + *value = current_evmcs->host_ia32_pat; + break; + case HOST_IA32_EFER: + *value = current_evmcs->host_ia32_efer; + break; + case HOST_CR0: + *value = current_evmcs->host_cr0; + break; + case HOST_CR3: + *value = current_evmcs->host_cr3; + break; + case HOST_CR4: + *value = current_evmcs->host_cr4; + break; + case HOST_IA32_SYSENTER_ESP: + *value = current_evmcs->host_ia32_sysenter_esp; + break; + case HOST_IA32_SYSENTER_EIP: + *value = current_evmcs->host_ia32_sysenter_eip; + break; + case HOST_RIP: + *value = current_evmcs->host_rip; + break; + case IO_BITMAP_A: + *value = current_evmcs->io_bitmap_a; + break; + case IO_BITMAP_B: + *value = current_evmcs->io_bitmap_b; + break; + case MSR_BITMAP: + *value = current_evmcs->msr_bitmap; + break; + case GUEST_ES_BASE: + *value = current_evmcs->guest_es_base; + break; + case GUEST_CS_BASE: + *value = current_evmcs->guest_cs_base; + break; + case GUEST_SS_BASE: + *value = current_evmcs->guest_ss_base; + break; + case GUEST_DS_BASE: + *value = current_evmcs->guest_ds_base; + break; + case GUEST_FS_BASE: + *value = current_evmcs->guest_fs_base; + break; + case GUEST_GS_BASE: + *value = current_evmcs->guest_gs_base; + break; + case GUEST_LDTR_BASE: + *value = current_evmcs->guest_ldtr_base; + break; + case GUEST_TR_BASE: + *value = current_evmcs->guest_tr_base; + break; + case GUEST_GDTR_BASE: + *value = current_evmcs->guest_gdtr_base; + break; + case GUEST_IDTR_BASE: + *value = current_evmcs->guest_idtr_base; + break; + case TSC_OFFSET: + *value = current_evmcs->tsc_offset; + break; + case VIRTUAL_APIC_PAGE_ADDR: + *value = current_evmcs->virtual_apic_page_addr; + break; + case VMCS_LINK_POINTER: + *value = current_evmcs->vmcs_link_pointer; + break; + case GUEST_IA32_DEBUGCTL: + *value = current_evmcs->guest_ia32_debugctl; + break; + case GUEST_IA32_PAT: + *value = current_evmcs->guest_ia32_pat; + break; + case GUEST_IA32_EFER: + *value = current_evmcs->guest_ia32_efer; + break; + case GUEST_PDPTR0: + *value = current_evmcs->guest_pdptr0; + break; + case GUEST_PDPTR1: + *value = current_evmcs->guest_pdptr1; + break; + case GUEST_PDPTR2: + *value = current_evmcs->guest_pdptr2; + break; + case GUEST_PDPTR3: + *value = current_evmcs->guest_pdptr3; + break; + case GUEST_PENDING_DBG_EXCEPTIONS: + *value = current_evmcs->guest_pending_dbg_exceptions; + break; + case GUEST_SYSENTER_ESP: + *value = current_evmcs->guest_sysenter_esp; + break; + case GUEST_SYSENTER_EIP: + *value = current_evmcs->guest_sysenter_eip; + break; + case CR0_GUEST_HOST_MASK: + *value = current_evmcs->cr0_guest_host_mask; + break; + case CR4_GUEST_HOST_MASK: + *value = current_evmcs->cr4_guest_host_mask; + break; + case CR0_READ_SHADOW: + *value = current_evmcs->cr0_read_shadow; + break; + case CR4_READ_SHADOW: + *value = current_evmcs->cr4_read_shadow; + break; + case GUEST_CR0: + *value = current_evmcs->guest_cr0; + break; + case GUEST_CR3: + *value = current_evmcs->guest_cr3; + break; + case GUEST_CR4: + *value = current_evmcs->guest_cr4; + break; + case GUEST_DR7: + *value = current_evmcs->guest_dr7; + break; + case HOST_FS_BASE: + *value = current_evmcs->host_fs_base; + break; + case HOST_GS_BASE: + *value = current_evmcs->host_gs_base; + break; + case HOST_TR_BASE: + *value = current_evmcs->host_tr_base; + break; + case HOST_GDTR_BASE: + *value = current_evmcs->host_gdtr_base; + break; + case HOST_IDTR_BASE: + *value = current_evmcs->host_idtr_base; + break; + case HOST_RSP: + *value = current_evmcs->host_rsp; + break; + case EPT_POINTER: + *value = current_evmcs->ept_pointer; + break; + case GUEST_BNDCFGS: + *value = current_evmcs->guest_bndcfgs; + break; + case XSS_EXIT_BITMAP: + *value = current_evmcs->xss_exit_bitmap; + break; + case GUEST_PHYSICAL_ADDRESS: + *value = current_evmcs->guest_physical_address; + break; + case EXIT_QUALIFICATION: + *value = current_evmcs->exit_qualification; + break; + case GUEST_LINEAR_ADDRESS: + *value = current_evmcs->guest_linear_address; + break; + case VM_EXIT_MSR_STORE_ADDR: + *value = current_evmcs->vm_exit_msr_store_addr; + break; + case VM_EXIT_MSR_LOAD_ADDR: + *value = current_evmcs->vm_exit_msr_load_addr; + break; + case VM_ENTRY_MSR_LOAD_ADDR: + *value = current_evmcs->vm_entry_msr_load_addr; + break; + case CR3_TARGET_VALUE0: + *value = current_evmcs->cr3_target_value0; + break; + case CR3_TARGET_VALUE1: + *value = current_evmcs->cr3_target_value1; + break; + case CR3_TARGET_VALUE2: + *value = current_evmcs->cr3_target_value2; + break; + case CR3_TARGET_VALUE3: + *value = current_evmcs->cr3_target_value3; + break; + case TPR_THRESHOLD: + *value = current_evmcs->tpr_threshold; + break; + case GUEST_INTERRUPTIBILITY_INFO: + *value = current_evmcs->guest_interruptibility_info; + break; + case CPU_BASED_VM_EXEC_CONTROL: + *value = current_evmcs->cpu_based_vm_exec_control; + break; + case EXCEPTION_BITMAP: + *value = current_evmcs->exception_bitmap; + break; + case VM_ENTRY_CONTROLS: + *value = current_evmcs->vm_entry_controls; + break; + case VM_ENTRY_INTR_INFO_FIELD: + *value = current_evmcs->vm_entry_intr_info_field; + break; + case VM_ENTRY_EXCEPTION_ERROR_CODE: + *value = current_evmcs->vm_entry_exception_error_code; + break; + case VM_ENTRY_INSTRUCTION_LEN: + *value = current_evmcs->vm_entry_instruction_len; + break; + case HOST_IA32_SYSENTER_CS: + *value = current_evmcs->host_ia32_sysenter_cs; + break; + case PIN_BASED_VM_EXEC_CONTROL: + *value = current_evmcs->pin_based_vm_exec_control; + break; + case VM_EXIT_CONTROLS: + *value = current_evmcs->vm_exit_controls; + break; + case SECONDARY_VM_EXEC_CONTROL: + *value = current_evmcs->secondary_vm_exec_control; + break; + case GUEST_ES_LIMIT: + *value = current_evmcs->guest_es_limit; + break; + case GUEST_CS_LIMIT: + *value = current_evmcs->guest_cs_limit; + break; + case GUEST_SS_LIMIT: + *value = current_evmcs->guest_ss_limit; + break; + case GUEST_DS_LIMIT: + *value = current_evmcs->guest_ds_limit; + break; + case GUEST_FS_LIMIT: + *value = current_evmcs->guest_fs_limit; + break; + case GUEST_GS_LIMIT: + *value = current_evmcs->guest_gs_limit; + break; + case GUEST_LDTR_LIMIT: + *value = current_evmcs->guest_ldtr_limit; + break; + case GUEST_TR_LIMIT: + *value = current_evmcs->guest_tr_limit; + break; + case GUEST_GDTR_LIMIT: + *value = current_evmcs->guest_gdtr_limit; + break; + case GUEST_IDTR_LIMIT: + *value = current_evmcs->guest_idtr_limit; + break; + case GUEST_ES_AR_BYTES: + *value = current_evmcs->guest_es_ar_bytes; + break; + case GUEST_CS_AR_BYTES: + *value = current_evmcs->guest_cs_ar_bytes; + break; + case GUEST_SS_AR_BYTES: + *value = current_evmcs->guest_ss_ar_bytes; + break; + case GUEST_DS_AR_BYTES: + *value = current_evmcs->guest_ds_ar_bytes; + break; + case GUEST_FS_AR_BYTES: + *value = current_evmcs->guest_fs_ar_bytes; + break; + case GUEST_GS_AR_BYTES: + *value = current_evmcs->guest_gs_ar_bytes; + break; + case GUEST_LDTR_AR_BYTES: + *value = current_evmcs->guest_ldtr_ar_bytes; + break; + case GUEST_TR_AR_BYTES: + *value = current_evmcs->guest_tr_ar_bytes; + break; + case GUEST_ACTIVITY_STATE: + *value = current_evmcs->guest_activity_state; + break; + case GUEST_SYSENTER_CS: + *value = current_evmcs->guest_sysenter_cs; + break; + case VM_INSTRUCTION_ERROR: + *value = current_evmcs->vm_instruction_error; + break; + case VM_EXIT_REASON: + *value = current_evmcs->vm_exit_reason; + break; + case VM_EXIT_INTR_INFO: + *value = current_evmcs->vm_exit_intr_info; + break; + case VM_EXIT_INTR_ERROR_CODE: + *value = current_evmcs->vm_exit_intr_error_code; + break; + case IDT_VECTORING_INFO_FIELD: + *value = current_evmcs->idt_vectoring_info_field; + break; + case IDT_VECTORING_ERROR_CODE: + *value = current_evmcs->idt_vectoring_error_code; + break; + case VM_EXIT_INSTRUCTION_LEN: + *value = current_evmcs->vm_exit_instruction_len; + break; + case VMX_INSTRUCTION_INFO: + *value = current_evmcs->vmx_instruction_info; + break; + case PAGE_FAULT_ERROR_CODE_MASK: + *value = current_evmcs->page_fault_error_code_mask; + break; + case PAGE_FAULT_ERROR_CODE_MATCH: + *value = current_evmcs->page_fault_error_code_match; + break; + case CR3_TARGET_COUNT: + *value = current_evmcs->cr3_target_count; + break; + case VM_EXIT_MSR_STORE_COUNT: + *value = current_evmcs->vm_exit_msr_store_count; + break; + case VM_EXIT_MSR_LOAD_COUNT: + *value = current_evmcs->vm_exit_msr_load_count; + break; + case VM_ENTRY_MSR_LOAD_COUNT: + *value = current_evmcs->vm_entry_msr_load_count; + break; + case HOST_ES_SELECTOR: + *value = current_evmcs->host_es_selector; + break; + case HOST_CS_SELECTOR: + *value = current_evmcs->host_cs_selector; + break; + case HOST_SS_SELECTOR: + *value = current_evmcs->host_ss_selector; + break; + case HOST_DS_SELECTOR: + *value = current_evmcs->host_ds_selector; + break; + case HOST_FS_SELECTOR: + *value = current_evmcs->host_fs_selector; + break; + case HOST_GS_SELECTOR: + *value = current_evmcs->host_gs_selector; + break; + case HOST_TR_SELECTOR: + *value = current_evmcs->host_tr_selector; + break; + case GUEST_ES_SELECTOR: + *value = current_evmcs->guest_es_selector; + break; + case GUEST_CS_SELECTOR: + *value = current_evmcs->guest_cs_selector; + break; + case GUEST_SS_SELECTOR: + *value = current_evmcs->guest_ss_selector; + break; + case GUEST_DS_SELECTOR: + *value = current_evmcs->guest_ds_selector; + break; + case GUEST_FS_SELECTOR: + *value = current_evmcs->guest_fs_selector; + break; + case GUEST_GS_SELECTOR: + *value = current_evmcs->guest_gs_selector; + break; + case GUEST_LDTR_SELECTOR: + *value = current_evmcs->guest_ldtr_selector; + break; + case GUEST_TR_SELECTOR: + *value = current_evmcs->guest_tr_selector; + break; + case VIRTUAL_PROCESSOR_ID: + *value = current_evmcs->virtual_processor_id; + break; + case HOST_IA32_PERF_GLOBAL_CTRL: + *value = current_evmcs->host_ia32_perf_global_ctrl; + break; + case GUEST_IA32_PERF_GLOBAL_CTRL: + *value = current_evmcs->guest_ia32_perf_global_ctrl; + break; + case ENCLS_EXITING_BITMAP: + *value = current_evmcs->encls_exiting_bitmap; + break; + case TSC_MULTIPLIER: + *value = current_evmcs->tsc_multiplier; + break; + default: return 1; + } + + return 0; +} + +static inline int evmcs_vmwrite(uint64_t encoding, uint64_t value) +{ + switch (encoding) { + case GUEST_RIP: + current_evmcs->guest_rip = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case GUEST_RSP: + current_evmcs->guest_rsp = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC; + break; + case GUEST_RFLAGS: + current_evmcs->guest_rflags = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC; + break; + case HOST_IA32_PAT: + current_evmcs->host_ia32_pat = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_IA32_EFER: + current_evmcs->host_ia32_efer = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_CR0: + current_evmcs->host_cr0 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_CR3: + current_evmcs->host_cr3 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_CR4: + current_evmcs->host_cr4 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_IA32_SYSENTER_ESP: + current_evmcs->host_ia32_sysenter_esp = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_IA32_SYSENTER_EIP: + current_evmcs->host_ia32_sysenter_eip = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_RIP: + current_evmcs->host_rip = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case IO_BITMAP_A: + current_evmcs->io_bitmap_a = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP; + break; + case IO_BITMAP_B: + current_evmcs->io_bitmap_b = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP; + break; + case MSR_BITMAP: + current_evmcs->msr_bitmap = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP; + break; + case GUEST_ES_BASE: + current_evmcs->guest_es_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_CS_BASE: + current_evmcs->guest_cs_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_SS_BASE: + current_evmcs->guest_ss_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_DS_BASE: + current_evmcs->guest_ds_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_FS_BASE: + current_evmcs->guest_fs_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_GS_BASE: + current_evmcs->guest_gs_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_LDTR_BASE: + current_evmcs->guest_ldtr_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_TR_BASE: + current_evmcs->guest_tr_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_GDTR_BASE: + current_evmcs->guest_gdtr_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_IDTR_BASE: + current_evmcs->guest_idtr_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case TSC_OFFSET: + current_evmcs->tsc_offset = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2; + break; + case VIRTUAL_APIC_PAGE_ADDR: + current_evmcs->virtual_apic_page_addr = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2; + break; + case VMCS_LINK_POINTER: + current_evmcs->vmcs_link_pointer = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_IA32_DEBUGCTL: + current_evmcs->guest_ia32_debugctl = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_IA32_PAT: + current_evmcs->guest_ia32_pat = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_IA32_EFER: + current_evmcs->guest_ia32_efer = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_PDPTR0: + current_evmcs->guest_pdptr0 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_PDPTR1: + current_evmcs->guest_pdptr1 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_PDPTR2: + current_evmcs->guest_pdptr2 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_PDPTR3: + current_evmcs->guest_pdptr3 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_PENDING_DBG_EXCEPTIONS: + current_evmcs->guest_pending_dbg_exceptions = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_SYSENTER_ESP: + current_evmcs->guest_sysenter_esp = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_SYSENTER_EIP: + current_evmcs->guest_sysenter_eip = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case CR0_GUEST_HOST_MASK: + current_evmcs->cr0_guest_host_mask = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR; + break; + case CR4_GUEST_HOST_MASK: + current_evmcs->cr4_guest_host_mask = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR; + break; + case CR0_READ_SHADOW: + current_evmcs->cr0_read_shadow = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR; + break; + case CR4_READ_SHADOW: + current_evmcs->cr4_read_shadow = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR; + break; + case GUEST_CR0: + current_evmcs->guest_cr0 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR; + break; + case GUEST_CR3: + current_evmcs->guest_cr3 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR; + break; + case GUEST_CR4: + current_evmcs->guest_cr4 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR; + break; + case GUEST_DR7: + current_evmcs->guest_dr7 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR; + break; + case HOST_FS_BASE: + current_evmcs->host_fs_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER; + break; + case HOST_GS_BASE: + current_evmcs->host_gs_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER; + break; + case HOST_TR_BASE: + current_evmcs->host_tr_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER; + break; + case HOST_GDTR_BASE: + current_evmcs->host_gdtr_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER; + break; + case HOST_IDTR_BASE: + current_evmcs->host_idtr_base = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER; + break; + case HOST_RSP: + current_evmcs->host_rsp = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER; + break; + case EPT_POINTER: + current_evmcs->ept_pointer = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT; + break; + case GUEST_BNDCFGS: + current_evmcs->guest_bndcfgs = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case XSS_EXIT_BITMAP: + current_evmcs->xss_exit_bitmap = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2; + break; + case GUEST_PHYSICAL_ADDRESS: + current_evmcs->guest_physical_address = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case EXIT_QUALIFICATION: + current_evmcs->exit_qualification = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case GUEST_LINEAR_ADDRESS: + current_evmcs->guest_linear_address = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case VM_EXIT_MSR_STORE_ADDR: + current_evmcs->vm_exit_msr_store_addr = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case VM_EXIT_MSR_LOAD_ADDR: + current_evmcs->vm_exit_msr_load_addr = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case VM_ENTRY_MSR_LOAD_ADDR: + current_evmcs->vm_entry_msr_load_addr = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case CR3_TARGET_VALUE0: + current_evmcs->cr3_target_value0 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case CR3_TARGET_VALUE1: + current_evmcs->cr3_target_value1 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case CR3_TARGET_VALUE2: + current_evmcs->cr3_target_value2 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case CR3_TARGET_VALUE3: + current_evmcs->cr3_target_value3 = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case TPR_THRESHOLD: + current_evmcs->tpr_threshold = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case GUEST_INTERRUPTIBILITY_INFO: + current_evmcs->guest_interruptibility_info = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC; + break; + case CPU_BASED_VM_EXEC_CONTROL: + current_evmcs->cpu_based_vm_exec_control = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC; + break; + case EXCEPTION_BITMAP: + current_evmcs->exception_bitmap = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN; + break; + case VM_ENTRY_CONTROLS: + current_evmcs->vm_entry_controls = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY; + break; + case VM_ENTRY_INTR_INFO_FIELD: + current_evmcs->vm_entry_intr_info_field = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT; + break; + case VM_ENTRY_EXCEPTION_ERROR_CODE: + current_evmcs->vm_entry_exception_error_code = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT; + break; + case VM_ENTRY_INSTRUCTION_LEN: + current_evmcs->vm_entry_instruction_len = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT; + break; + case HOST_IA32_SYSENTER_CS: + current_evmcs->host_ia32_sysenter_cs = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case PIN_BASED_VM_EXEC_CONTROL: + current_evmcs->pin_based_vm_exec_control = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1; + break; + case VM_EXIT_CONTROLS: + current_evmcs->vm_exit_controls = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1; + break; + case SECONDARY_VM_EXEC_CONTROL: + current_evmcs->secondary_vm_exec_control = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1; + break; + case GUEST_ES_LIMIT: + current_evmcs->guest_es_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_CS_LIMIT: + current_evmcs->guest_cs_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_SS_LIMIT: + current_evmcs->guest_ss_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_DS_LIMIT: + current_evmcs->guest_ds_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_FS_LIMIT: + current_evmcs->guest_fs_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_GS_LIMIT: + current_evmcs->guest_gs_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_LDTR_LIMIT: + current_evmcs->guest_ldtr_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_TR_LIMIT: + current_evmcs->guest_tr_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_GDTR_LIMIT: + current_evmcs->guest_gdtr_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_IDTR_LIMIT: + current_evmcs->guest_idtr_limit = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_ES_AR_BYTES: + current_evmcs->guest_es_ar_bytes = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_CS_AR_BYTES: + current_evmcs->guest_cs_ar_bytes = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_SS_AR_BYTES: + current_evmcs->guest_ss_ar_bytes = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_DS_AR_BYTES: + current_evmcs->guest_ds_ar_bytes = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_FS_AR_BYTES: + current_evmcs->guest_fs_ar_bytes = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_GS_AR_BYTES: + current_evmcs->guest_gs_ar_bytes = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_LDTR_AR_BYTES: + current_evmcs->guest_ldtr_ar_bytes = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_TR_AR_BYTES: + current_evmcs->guest_tr_ar_bytes = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_ACTIVITY_STATE: + current_evmcs->guest_activity_state = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case GUEST_SYSENTER_CS: + current_evmcs->guest_sysenter_cs = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case VM_INSTRUCTION_ERROR: + current_evmcs->vm_instruction_error = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case VM_EXIT_REASON: + current_evmcs->vm_exit_reason = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case VM_EXIT_INTR_INFO: + current_evmcs->vm_exit_intr_info = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case VM_EXIT_INTR_ERROR_CODE: + current_evmcs->vm_exit_intr_error_code = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case IDT_VECTORING_INFO_FIELD: + current_evmcs->idt_vectoring_info_field = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case IDT_VECTORING_ERROR_CODE: + current_evmcs->idt_vectoring_error_code = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case VM_EXIT_INSTRUCTION_LEN: + current_evmcs->vm_exit_instruction_len = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case VMX_INSTRUCTION_INFO: + current_evmcs->vmx_instruction_info = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE; + break; + case PAGE_FAULT_ERROR_CODE_MASK: + current_evmcs->page_fault_error_code_mask = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case PAGE_FAULT_ERROR_CODE_MATCH: + current_evmcs->page_fault_error_code_match = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case CR3_TARGET_COUNT: + current_evmcs->cr3_target_count = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case VM_EXIT_MSR_STORE_COUNT: + current_evmcs->vm_exit_msr_store_count = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case VM_EXIT_MSR_LOAD_COUNT: + current_evmcs->vm_exit_msr_load_count = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case VM_ENTRY_MSR_LOAD_COUNT: + current_evmcs->vm_entry_msr_load_count = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; + break; + case HOST_ES_SELECTOR: + current_evmcs->host_es_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_CS_SELECTOR: + current_evmcs->host_cs_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_SS_SELECTOR: + current_evmcs->host_ss_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_DS_SELECTOR: + current_evmcs->host_ds_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_FS_SELECTOR: + current_evmcs->host_fs_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_GS_SELECTOR: + current_evmcs->host_gs_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case HOST_TR_SELECTOR: + current_evmcs->host_tr_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case GUEST_ES_SELECTOR: + current_evmcs->guest_es_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_CS_SELECTOR: + current_evmcs->guest_cs_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_SS_SELECTOR: + current_evmcs->guest_ss_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_DS_SELECTOR: + current_evmcs->guest_ds_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_FS_SELECTOR: + current_evmcs->guest_fs_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_GS_SELECTOR: + current_evmcs->guest_gs_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_LDTR_SELECTOR: + current_evmcs->guest_ldtr_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case GUEST_TR_SELECTOR: + current_evmcs->guest_tr_selector = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2; + break; + case VIRTUAL_PROCESSOR_ID: + current_evmcs->virtual_processor_id = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT; + break; + case HOST_IA32_PERF_GLOBAL_CTRL: + current_evmcs->host_ia32_perf_global_ctrl = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + break; + case GUEST_IA32_PERF_GLOBAL_CTRL: + current_evmcs->guest_ia32_perf_global_ctrl = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1; + break; + case ENCLS_EXITING_BITMAP: + current_evmcs->encls_exiting_bitmap = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2; + break; + case TSC_MULTIPLIER: + current_evmcs->tsc_multiplier = value; + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2; + break; + default: return 1; + } + + return 0; +} + +static inline int evmcs_vmlaunch(void) +{ + int ret; + + current_evmcs->hv_clean_fields = 0; + + __asm__ __volatile__("push %%rbp;" + "push %%rcx;" + "push %%rdx;" + "push %%rsi;" + "push %%rdi;" + "push $0;" + "mov %%rsp, (%[host_rsp]);" + "lea 1f(%%rip), %%rax;" + "mov %%rax, (%[host_rip]);" + "vmlaunch;" + "incq (%%rsp);" + "1: pop %%rax;" + "pop %%rdi;" + "pop %%rsi;" + "pop %%rdx;" + "pop %%rcx;" + "pop %%rbp;" + : [ret]"=&a"(ret) + : [host_rsp]"r" + ((uint64_t)¤t_evmcs->host_rsp), + [host_rip]"r" + ((uint64_t)¤t_evmcs->host_rip) + : "memory", "cc", "rbx", "r8", "r9", "r10", + "r11", "r12", "r13", "r14", "r15"); + return ret; +} + +/* + * No guest state (e.g. GPRs) is established by this vmresume. + */ +static inline int evmcs_vmresume(void) +{ + int ret; + + /* HOST_RIP */ + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1; + /* HOST_RSP */ + current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER; + + __asm__ __volatile__("push %%rbp;" + "push %%rcx;" + "push %%rdx;" + "push %%rsi;" + "push %%rdi;" + "push $0;" + "mov %%rsp, (%[host_rsp]);" + "lea 1f(%%rip), %%rax;" + "mov %%rax, (%[host_rip]);" + "vmresume;" + "incq (%%rsp);" + "1: pop %%rax;" + "pop %%rdi;" + "pop %%rsi;" + "pop %%rdx;" + "pop %%rcx;" + "pop %%rbp;" + : [ret]"=&a"(ret) + : [host_rsp]"r" + ((uint64_t)¤t_evmcs->host_rsp), + [host_rip]"r" + ((uint64_t)¤t_evmcs->host_rip) + : "memory", "cc", "rbx", "r8", "r9", "r10", + "r11", "r12", "r13", "r14", "r15"); + return ret; +} + +#endif /* !SELFTEST_KVM_EVMCS_H */ diff --git a/tools/testing/selftests/kvm/include/x86_64/hyperv.h b/tools/testing/selftests/kvm/include/x86_64/hyperv.h new file mode 100644 index 0000000000..fa65b908b1 --- /dev/null +++ b/tools/testing/selftests/kvm/include/x86_64/hyperv.h @@ -0,0 +1,346 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * tools/testing/selftests/kvm/include/x86_64/hyperv.h + * + * Copyright (C) 2021, Red Hat, Inc. + * + */ + +#ifndef SELFTEST_KVM_HYPERV_H +#define SELFTEST_KVM_HYPERV_H + +#include "processor.h" + +#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS 0x40000000 +#define HYPERV_CPUID_INTERFACE 0x40000001 +#define HYPERV_CPUID_VERSION 0x40000002 +#define HYPERV_CPUID_FEATURES 0x40000003 +#define HYPERV_CPUID_ENLIGHTMENT_INFO 0x40000004 +#define HYPERV_CPUID_IMPLEMENT_LIMITS 0x40000005 +#define HYPERV_CPUID_CPU_MANAGEMENT_FEATURES 0x40000007 +#define HYPERV_CPUID_NESTED_FEATURES 0x4000000A +#define HYPERV_CPUID_SYNDBG_VENDOR_AND_MAX_FUNCTIONS 0x40000080 +#define HYPERV_CPUID_SYNDBG_INTERFACE 0x40000081 +#define HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES 0x40000082 + +#define HV_X64_MSR_GUEST_OS_ID 0x40000000 +#define HV_X64_MSR_HYPERCALL 0x40000001 +#define HV_X64_MSR_VP_INDEX 0x40000002 +#define HV_X64_MSR_RESET 0x40000003 +#define HV_X64_MSR_VP_RUNTIME 0x40000010 +#define HV_X64_MSR_TIME_REF_COUNT 0x40000020 +#define HV_X64_MSR_REFERENCE_TSC 0x40000021 +#define HV_X64_MSR_TSC_FREQUENCY 0x40000022 +#define HV_X64_MSR_APIC_FREQUENCY 0x40000023 +#define HV_X64_MSR_EOI 0x40000070 +#define HV_X64_MSR_ICR 0x40000071 +#define HV_X64_MSR_TPR 0x40000072 +#define HV_X64_MSR_VP_ASSIST_PAGE 0x40000073 +#define HV_X64_MSR_SCONTROL 0x40000080 +#define HV_X64_MSR_SVERSION 0x40000081 +#define HV_X64_MSR_SIEFP 0x40000082 +#define HV_X64_MSR_SIMP 0x40000083 +#define HV_X64_MSR_EOM 0x40000084 +#define HV_X64_MSR_SINT0 0x40000090 +#define HV_X64_MSR_SINT1 0x40000091 +#define HV_X64_MSR_SINT2 0x40000092 +#define HV_X64_MSR_SINT3 0x40000093 +#define HV_X64_MSR_SINT4 0x40000094 +#define HV_X64_MSR_SINT5 0x40000095 +#define HV_X64_MSR_SINT6 0x40000096 +#define HV_X64_MSR_SINT7 0x40000097 +#define HV_X64_MSR_SINT8 0x40000098 +#define HV_X64_MSR_SINT9 0x40000099 +#define HV_X64_MSR_SINT10 0x4000009A +#define HV_X64_MSR_SINT11 0x4000009B +#define HV_X64_MSR_SINT12 0x4000009C +#define HV_X64_MSR_SINT13 0x4000009D +#define HV_X64_MSR_SINT14 0x4000009E +#define HV_X64_MSR_SINT15 0x4000009F +#define HV_X64_MSR_STIMER0_CONFIG 0x400000B0 +#define HV_X64_MSR_STIMER0_COUNT 0x400000B1 +#define HV_X64_MSR_STIMER1_CONFIG 0x400000B2 +#define HV_X64_MSR_STIMER1_COUNT 0x400000B3 +#define HV_X64_MSR_STIMER2_CONFIG 0x400000B4 +#define HV_X64_MSR_STIMER2_COUNT 0x400000B5 +#define HV_X64_MSR_STIMER3_CONFIG 0x400000B6 +#define HV_X64_MSR_STIMER3_COUNT 0x400000B7 +#define HV_X64_MSR_GUEST_IDLE 0x400000F0 +#define HV_X64_MSR_CRASH_P0 0x40000100 +#define HV_X64_MSR_CRASH_P1 0x40000101 +#define HV_X64_MSR_CRASH_P2 0x40000102 +#define HV_X64_MSR_CRASH_P3 0x40000103 +#define HV_X64_MSR_CRASH_P4 0x40000104 +#define HV_X64_MSR_CRASH_CTL 0x40000105 +#define HV_X64_MSR_REENLIGHTENMENT_CONTROL 0x40000106 +#define HV_X64_MSR_TSC_EMULATION_CONTROL 0x40000107 +#define HV_X64_MSR_TSC_EMULATION_STATUS 0x40000108 +#define HV_X64_MSR_TSC_INVARIANT_CONTROL 0x40000118 + +#define HV_X64_MSR_SYNDBG_CONTROL 0x400000F1 +#define HV_X64_MSR_SYNDBG_STATUS 0x400000F2 +#define HV_X64_MSR_SYNDBG_SEND_BUFFER 0x400000F3 +#define HV_X64_MSR_SYNDBG_RECV_BUFFER 0x400000F4 +#define HV_X64_MSR_SYNDBG_PENDING_BUFFER 0x400000F5 +#define HV_X64_MSR_SYNDBG_OPTIONS 0x400000FF + +/* HYPERV_CPUID_FEATURES.EAX */ +#define HV_MSR_VP_RUNTIME_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 0) +#define HV_MSR_TIME_REF_COUNT_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 1) +#define HV_MSR_SYNIC_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 2) +#define HV_MSR_SYNTIMER_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 3) +#define HV_MSR_APIC_ACCESS_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 4) +#define HV_MSR_HYPERCALL_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 5) +#define HV_MSR_VP_INDEX_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 6) +#define HV_MSR_RESET_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 7) +#define HV_MSR_STAT_PAGES_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 8) +#define HV_MSR_REFERENCE_TSC_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 9) +#define HV_MSR_GUEST_IDLE_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 10) +#define HV_ACCESS_FREQUENCY_MSRS \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 11) +#define HV_ACCESS_REENLIGHTENMENT \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 13) +#define HV_ACCESS_TSC_INVARIANT \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 15) + +/* HYPERV_CPUID_FEATURES.EBX */ +#define HV_CREATE_PARTITIONS \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 0) +#define HV_ACCESS_PARTITION_ID \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 1) +#define HV_ACCESS_MEMORY_POOL \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 2) +#define HV_ADJUST_MESSAGE_BUFFERS \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 3) +#define HV_POST_MESSAGES \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 4) +#define HV_SIGNAL_EVENTS \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 5) +#define HV_CREATE_PORT \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 6) +#define HV_CONNECT_PORT \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 7) +#define HV_ACCESS_STATS \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 8) +#define HV_DEBUGGING \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 11) +#define HV_CPU_MANAGEMENT \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 12) +#define HV_ENABLE_EXTENDED_HYPERCALLS \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 20) +#define HV_ISOLATION \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 22) + +/* HYPERV_CPUID_FEATURES.EDX */ +#define HV_X64_MWAIT_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 0) +#define HV_X64_GUEST_DEBUGGING_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 1) +#define HV_X64_PERF_MONITOR_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 2) +#define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 3) +#define HV_X64_HYPERCALL_XMM_INPUT_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 4) +#define HV_X64_GUEST_IDLE_STATE_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 5) +#define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 8) +#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 10) +#define HV_FEATURE_DEBUG_MSRS_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 11) +#define HV_STIMER_DIRECT_MODE_AVAILABLE \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 19) + +/* HYPERV_CPUID_ENLIGHTMENT_INFO.EAX */ +#define HV_X64_AS_SWITCH_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 0) +#define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 1) +#define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 2) +#define HV_X64_APIC_ACCESS_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 3) +#define HV_X64_SYSTEM_RESET_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 4) +#define HV_X64_RELAXED_TIMING_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 5) +#define HV_DEPRECATING_AEOI_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 9) +#define HV_X64_CLUSTER_IPI_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 10) +#define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 11) +#define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 14) + +/* HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES.EAX */ +#define HV_X64_SYNDBG_CAP_ALLOW_KERNEL_DEBUGGING \ + KVM_X86_CPU_FEATURE(HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES, 0, EAX, 1) + +/* Hypercalls */ +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE 0x0002 +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003 +#define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008 +#define HVCALL_SEND_IPI 0x000b +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013 +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX 0x0014 +#define HVCALL_SEND_IPI_EX 0x0015 +#define HVCALL_GET_PARTITION_ID 0x0046 +#define HVCALL_DEPOSIT_MEMORY 0x0048 +#define HVCALL_CREATE_VP 0x004e +#define HVCALL_GET_VP_REGISTERS 0x0050 +#define HVCALL_SET_VP_REGISTERS 0x0051 +#define HVCALL_POST_MESSAGE 0x005c +#define HVCALL_SIGNAL_EVENT 0x005d +#define HVCALL_POST_DEBUG_DATA 0x0069 +#define HVCALL_RETRIEVE_DEBUG_DATA 0x006a +#define HVCALL_RESET_DEBUG_SESSION 0x006b +#define HVCALL_ADD_LOGICAL_PROCESSOR 0x0076 +#define HVCALL_MAP_DEVICE_INTERRUPT 0x007c +#define HVCALL_UNMAP_DEVICE_INTERRUPT 0x007d +#define HVCALL_RETARGET_INTERRUPT 0x007e +#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af +#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0 + +/* Extended hypercalls */ +#define HV_EXT_CALL_QUERY_CAPABILITIES 0x8001 + +#define HV_FLUSH_ALL_PROCESSORS BIT(0) +#define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) +#define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) +#define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3) + +/* hypercall status code */ +#define HV_STATUS_SUCCESS 0 +#define HV_STATUS_INVALID_HYPERCALL_CODE 2 +#define HV_STATUS_INVALID_HYPERCALL_INPUT 3 +#define HV_STATUS_INVALID_ALIGNMENT 4 +#define HV_STATUS_INVALID_PARAMETER 5 +#define HV_STATUS_ACCESS_DENIED 6 +#define HV_STATUS_OPERATION_DENIED 8 +#define HV_STATUS_INSUFFICIENT_MEMORY 11 +#define HV_STATUS_INVALID_PORT_ID 17 +#define HV_STATUS_INVALID_CONNECTION_ID 18 +#define HV_STATUS_INSUFFICIENT_BUFFERS 19 + +/* hypercall options */ +#define HV_HYPERCALL_FAST_BIT BIT(16) +#define HV_HYPERCALL_VARHEAD_OFFSET 17 +#define HV_HYPERCALL_REP_COMP_OFFSET 32 + +/* + * Issue a Hyper-V hypercall. Returns exception vector raised or 0, 'hv_status' + * is set to the hypercall status (if no exception occurred). + */ +static inline uint8_t __hyperv_hypercall(u64 control, vm_vaddr_t input_address, + vm_vaddr_t output_address, + uint64_t *hv_status) +{ + uint64_t error_code; + uint8_t vector; + + /* Note both the hypercall and the "asm safe" clobber r9-r11. */ + asm volatile("mov %[output_address], %%r8\n\t" + KVM_ASM_SAFE("vmcall") + : "=a" (*hv_status), + "+c" (control), "+d" (input_address), + KVM_ASM_SAFE_OUTPUTS(vector, error_code) + : [output_address] "r"(output_address), + "a" (-EFAULT) + : "cc", "memory", "r8", KVM_ASM_SAFE_CLOBBERS); + return vector; +} + +/* Issue a Hyper-V hypercall and assert that it succeeded. */ +static inline void hyperv_hypercall(u64 control, vm_vaddr_t input_address, + vm_vaddr_t output_address) +{ + uint64_t hv_status; + uint8_t vector; + + vector = __hyperv_hypercall(control, input_address, output_address, &hv_status); + + GUEST_ASSERT(!vector); + GUEST_ASSERT((hv_status & 0xffff) == 0); +} + +/* Write 'Fast' hypercall input 'data' to the first 'n_sse_regs' SSE regs */ +static inline void hyperv_write_xmm_input(void *data, int n_sse_regs) +{ + int i; + + for (i = 0; i < n_sse_regs; i++) + write_sse_reg(i, (sse128_t *)(data + sizeof(sse128_t) * i)); +} + +/* Proper HV_X64_MSR_GUEST_OS_ID value */ +#define HYPERV_LINUX_OS_ID ((u64)0x8100 << 48) + +#define HV_X64_MSR_VP_ASSIST_PAGE 0x40000073 +#define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE 0x00000001 +#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT 12 +#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK \ + (~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1)) + +struct hv_nested_enlightenments_control { + struct { + __u32 directhypercall:1; + __u32 reserved:31; + } features; + struct { + __u32 reserved; + } hypercallControls; +} __packed; + +/* Define virtual processor assist page structure. */ +struct hv_vp_assist_page { + __u32 apic_assist; + __u32 reserved1; + __u64 vtl_control[3]; + struct hv_nested_enlightenments_control nested_control; + __u8 enlighten_vmentry; + __u8 reserved2[7]; + __u64 current_nested_vmcs; +} __packed; + +extern struct hv_vp_assist_page *current_vp_assist; + +int enable_vp_assist(uint64_t vp_assist_pa, void *vp_assist); + +struct hyperv_test_pages { + /* VP assist page */ + void *vp_assist_hva; + uint64_t vp_assist_gpa; + void *vp_assist; + + /* Partition assist page */ + void *partition_assist_hva; + uint64_t partition_assist_gpa; + void *partition_assist; + + /* Enlightened VMCS */ + void *enlightened_vmcs_hva; + uint64_t enlightened_vmcs_gpa; + void *enlightened_vmcs; +}; + +struct hyperv_test_pages *vcpu_alloc_hyperv_test_pages(struct kvm_vm *vm, + vm_vaddr_t *p_hv_pages_gva); + +/* HV_X64_MSR_TSC_INVARIANT_CONTROL bits */ +#define HV_INVARIANT_TSC_EXPOSED BIT_ULL(0) + +#endif /* !SELFTEST_KVM_HYPERV_H */ diff --git a/tools/testing/selftests/kvm/include/x86_64/mce.h b/tools/testing/selftests/kvm/include/x86_64/mce.h new file mode 100644 index 0000000000..6119321f3f --- /dev/null +++ b/tools/testing/selftests/kvm/include/x86_64/mce.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * tools/testing/selftests/kvm/include/x86_64/mce.h + * + * Copyright (C) 2022, Google LLC. + */ + +#ifndef SELFTEST_KVM_MCE_H +#define SELFTEST_KVM_MCE_H + +#define MCG_CTL_P BIT_ULL(8) /* MCG_CTL register available */ +#define MCG_SER_P BIT_ULL(24) /* MCA recovery/new status bits */ +#define MCG_LMCE_P BIT_ULL(27) /* Local machine check supported */ +#define MCG_CMCI_P BIT_ULL(10) /* CMCI supported */ +#define KVM_MAX_MCE_BANKS 32 +#define MCG_CAP_BANKS_MASK 0xff /* Bit 0-7 of the MCG_CAP register are #banks */ +#define MCI_STATUS_VAL (1ULL << 63) /* valid error */ +#define MCI_STATUS_UC (1ULL << 61) /* uncorrected error */ +#define MCI_STATUS_EN (1ULL << 60) /* error enabled */ +#define MCI_STATUS_MISCV (1ULL << 59) /* misc error reg. valid */ +#define MCI_STATUS_ADDRV (1ULL << 58) /* addr reg. valid */ +#define MCM_ADDR_PHYS 2 /* physical address */ +#define MCI_CTL2_CMCI_EN BIT_ULL(30) + +#endif /* SELFTEST_KVM_MCE_H */ diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h new file mode 100644 index 0000000000..25bc61dac5 --- /dev/null +++ b/tools/testing/selftests/kvm/include/x86_64/processor.h @@ -0,0 +1,1259 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * tools/testing/selftests/kvm/include/x86_64/processor.h + * + * Copyright (C) 2018, Google LLC. + */ + +#ifndef SELFTEST_KVM_PROCESSOR_H +#define SELFTEST_KVM_PROCESSOR_H + +#include <assert.h> +#include <stdint.h> +#include <syscall.h> + +#include <asm/msr-index.h> +#include <asm/prctl.h> + +#include <linux/stringify.h> + +#include "../kvm_util.h" + +extern bool host_cpu_is_intel; +extern bool host_cpu_is_amd; + +#define NMI_VECTOR 0x02 + +#define X86_EFLAGS_FIXED (1u << 1) + +#define X86_CR4_VME (1ul << 0) +#define X86_CR4_PVI (1ul << 1) +#define X86_CR4_TSD (1ul << 2) +#define X86_CR4_DE (1ul << 3) +#define X86_CR4_PSE (1ul << 4) +#define X86_CR4_PAE (1ul << 5) +#define X86_CR4_MCE (1ul << 6) +#define X86_CR4_PGE (1ul << 7) +#define X86_CR4_PCE (1ul << 8) +#define X86_CR4_OSFXSR (1ul << 9) +#define X86_CR4_OSXMMEXCPT (1ul << 10) +#define X86_CR4_UMIP (1ul << 11) +#define X86_CR4_LA57 (1ul << 12) +#define X86_CR4_VMXE (1ul << 13) +#define X86_CR4_SMXE (1ul << 14) +#define X86_CR4_FSGSBASE (1ul << 16) +#define X86_CR4_PCIDE (1ul << 17) +#define X86_CR4_OSXSAVE (1ul << 18) +#define X86_CR4_SMEP (1ul << 20) +#define X86_CR4_SMAP (1ul << 21) +#define X86_CR4_PKE (1ul << 22) + +struct xstate_header { + u64 xstate_bv; + u64 xcomp_bv; + u64 reserved[6]; +} __attribute__((packed)); + +struct xstate { + u8 i387[512]; + struct xstate_header header; + u8 extended_state_area[0]; +} __attribute__ ((packed, aligned (64))); + +#define XFEATURE_MASK_FP BIT_ULL(0) +#define XFEATURE_MASK_SSE BIT_ULL(1) +#define XFEATURE_MASK_YMM BIT_ULL(2) +#define XFEATURE_MASK_BNDREGS BIT_ULL(3) +#define XFEATURE_MASK_BNDCSR BIT_ULL(4) +#define XFEATURE_MASK_OPMASK BIT_ULL(5) +#define XFEATURE_MASK_ZMM_Hi256 BIT_ULL(6) +#define XFEATURE_MASK_Hi16_ZMM BIT_ULL(7) +#define XFEATURE_MASK_PT BIT_ULL(8) +#define XFEATURE_MASK_PKRU BIT_ULL(9) +#define XFEATURE_MASK_PASID BIT_ULL(10) +#define XFEATURE_MASK_CET_USER BIT_ULL(11) +#define XFEATURE_MASK_CET_KERNEL BIT_ULL(12) +#define XFEATURE_MASK_LBR BIT_ULL(15) +#define XFEATURE_MASK_XTILE_CFG BIT_ULL(17) +#define XFEATURE_MASK_XTILE_DATA BIT_ULL(18) + +#define XFEATURE_MASK_AVX512 (XFEATURE_MASK_OPMASK | \ + XFEATURE_MASK_ZMM_Hi256 | \ + XFEATURE_MASK_Hi16_ZMM) +#define XFEATURE_MASK_XTILE (XFEATURE_MASK_XTILE_DATA | \ + XFEATURE_MASK_XTILE_CFG) + +/* Note, these are ordered alphabetically to match kvm_cpuid_entry2. Eww. */ +enum cpuid_output_regs { + KVM_CPUID_EAX, + KVM_CPUID_EBX, + KVM_CPUID_ECX, + KVM_CPUID_EDX +}; + +/* + * Pack the information into a 64-bit value so that each X86_FEATURE_XXX can be + * passed by value with no overhead. + */ +struct kvm_x86_cpu_feature { + u32 function; + u16 index; + u8 reg; + u8 bit; +}; +#define KVM_X86_CPU_FEATURE(fn, idx, gpr, __bit) \ +({ \ + struct kvm_x86_cpu_feature feature = { \ + .function = fn, \ + .index = idx, \ + .reg = KVM_CPUID_##gpr, \ + .bit = __bit, \ + }; \ + \ + kvm_static_assert((fn & 0xc0000000) == 0 || \ + (fn & 0xc0000000) == 0x40000000 || \ + (fn & 0xc0000000) == 0x80000000 || \ + (fn & 0xc0000000) == 0xc0000000); \ + kvm_static_assert(idx < BIT(sizeof(feature.index) * BITS_PER_BYTE)); \ + feature; \ +}) + +/* + * Basic Leafs, a.k.a. Intel defined + */ +#define X86_FEATURE_MWAIT KVM_X86_CPU_FEATURE(0x1, 0, ECX, 3) +#define X86_FEATURE_VMX KVM_X86_CPU_FEATURE(0x1, 0, ECX, 5) +#define X86_FEATURE_SMX KVM_X86_CPU_FEATURE(0x1, 0, ECX, 6) +#define X86_FEATURE_PDCM KVM_X86_CPU_FEATURE(0x1, 0, ECX, 15) +#define X86_FEATURE_PCID KVM_X86_CPU_FEATURE(0x1, 0, ECX, 17) +#define X86_FEATURE_X2APIC KVM_X86_CPU_FEATURE(0x1, 0, ECX, 21) +#define X86_FEATURE_MOVBE KVM_X86_CPU_FEATURE(0x1, 0, ECX, 22) +#define X86_FEATURE_TSC_DEADLINE_TIMER KVM_X86_CPU_FEATURE(0x1, 0, ECX, 24) +#define X86_FEATURE_XSAVE KVM_X86_CPU_FEATURE(0x1, 0, ECX, 26) +#define X86_FEATURE_OSXSAVE KVM_X86_CPU_FEATURE(0x1, 0, ECX, 27) +#define X86_FEATURE_RDRAND KVM_X86_CPU_FEATURE(0x1, 0, ECX, 30) +#define X86_FEATURE_HYPERVISOR KVM_X86_CPU_FEATURE(0x1, 0, ECX, 31) +#define X86_FEATURE_PAE KVM_X86_CPU_FEATURE(0x1, 0, EDX, 6) +#define X86_FEATURE_MCE KVM_X86_CPU_FEATURE(0x1, 0, EDX, 7) +#define X86_FEATURE_APIC KVM_X86_CPU_FEATURE(0x1, 0, EDX, 9) +#define X86_FEATURE_CLFLUSH KVM_X86_CPU_FEATURE(0x1, 0, EDX, 19) +#define X86_FEATURE_XMM KVM_X86_CPU_FEATURE(0x1, 0, EDX, 25) +#define X86_FEATURE_XMM2 KVM_X86_CPU_FEATURE(0x1, 0, EDX, 26) +#define X86_FEATURE_FSGSBASE KVM_X86_CPU_FEATURE(0x7, 0, EBX, 0) +#define X86_FEATURE_TSC_ADJUST KVM_X86_CPU_FEATURE(0x7, 0, EBX, 1) +#define X86_FEATURE_SGX KVM_X86_CPU_FEATURE(0x7, 0, EBX, 2) +#define X86_FEATURE_HLE KVM_X86_CPU_FEATURE(0x7, 0, EBX, 4) +#define X86_FEATURE_SMEP KVM_X86_CPU_FEATURE(0x7, 0, EBX, 7) +#define X86_FEATURE_INVPCID KVM_X86_CPU_FEATURE(0x7, 0, EBX, 10) +#define X86_FEATURE_RTM KVM_X86_CPU_FEATURE(0x7, 0, EBX, 11) +#define X86_FEATURE_MPX KVM_X86_CPU_FEATURE(0x7, 0, EBX, 14) +#define X86_FEATURE_SMAP KVM_X86_CPU_FEATURE(0x7, 0, EBX, 20) +#define X86_FEATURE_PCOMMIT KVM_X86_CPU_FEATURE(0x7, 0, EBX, 22) +#define X86_FEATURE_CLFLUSHOPT KVM_X86_CPU_FEATURE(0x7, 0, EBX, 23) +#define X86_FEATURE_CLWB KVM_X86_CPU_FEATURE(0x7, 0, EBX, 24) +#define X86_FEATURE_UMIP KVM_X86_CPU_FEATURE(0x7, 0, ECX, 2) +#define X86_FEATURE_PKU KVM_X86_CPU_FEATURE(0x7, 0, ECX, 3) +#define X86_FEATURE_OSPKE KVM_X86_CPU_FEATURE(0x7, 0, ECX, 4) +#define X86_FEATURE_LA57 KVM_X86_CPU_FEATURE(0x7, 0, ECX, 16) +#define X86_FEATURE_RDPID KVM_X86_CPU_FEATURE(0x7, 0, ECX, 22) +#define X86_FEATURE_SGX_LC KVM_X86_CPU_FEATURE(0x7, 0, ECX, 30) +#define X86_FEATURE_SHSTK KVM_X86_CPU_FEATURE(0x7, 0, ECX, 7) +#define X86_FEATURE_IBT KVM_X86_CPU_FEATURE(0x7, 0, EDX, 20) +#define X86_FEATURE_AMX_TILE KVM_X86_CPU_FEATURE(0x7, 0, EDX, 24) +#define X86_FEATURE_SPEC_CTRL KVM_X86_CPU_FEATURE(0x7, 0, EDX, 26) +#define X86_FEATURE_ARCH_CAPABILITIES KVM_X86_CPU_FEATURE(0x7, 0, EDX, 29) +#define X86_FEATURE_PKS KVM_X86_CPU_FEATURE(0x7, 0, ECX, 31) +#define X86_FEATURE_XTILECFG KVM_X86_CPU_FEATURE(0xD, 0, EAX, 17) +#define X86_FEATURE_XTILEDATA KVM_X86_CPU_FEATURE(0xD, 0, EAX, 18) +#define X86_FEATURE_XSAVES KVM_X86_CPU_FEATURE(0xD, 1, EAX, 3) +#define X86_FEATURE_XFD KVM_X86_CPU_FEATURE(0xD, 1, EAX, 4) +#define X86_FEATURE_XTILEDATA_XFD KVM_X86_CPU_FEATURE(0xD, 18, ECX, 2) + +/* + * Extended Leafs, a.k.a. AMD defined + */ +#define X86_FEATURE_SVM KVM_X86_CPU_FEATURE(0x80000001, 0, ECX, 2) +#define X86_FEATURE_NX KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 20) +#define X86_FEATURE_GBPAGES KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 26) +#define X86_FEATURE_RDTSCP KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 27) +#define X86_FEATURE_LM KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 29) +#define X86_FEATURE_INVTSC KVM_X86_CPU_FEATURE(0x80000007, 0, EDX, 8) +#define X86_FEATURE_RDPRU KVM_X86_CPU_FEATURE(0x80000008, 0, EBX, 4) +#define X86_FEATURE_AMD_IBPB KVM_X86_CPU_FEATURE(0x80000008, 0, EBX, 12) +#define X86_FEATURE_NPT KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 0) +#define X86_FEATURE_LBRV KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 1) +#define X86_FEATURE_NRIPS KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 3) +#define X86_FEATURE_TSCRATEMSR KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 4) +#define X86_FEATURE_PAUSEFILTER KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 10) +#define X86_FEATURE_PFTHRESHOLD KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 12) +#define X86_FEATURE_VGIF KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 16) +#define X86_FEATURE_SEV KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 1) +#define X86_FEATURE_SEV_ES KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 3) + +/* + * KVM defined paravirt features. + */ +#define X86_FEATURE_KVM_CLOCKSOURCE KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 0) +#define X86_FEATURE_KVM_NOP_IO_DELAY KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 1) +#define X86_FEATURE_KVM_MMU_OP KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 2) +#define X86_FEATURE_KVM_CLOCKSOURCE2 KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 3) +#define X86_FEATURE_KVM_ASYNC_PF KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 4) +#define X86_FEATURE_KVM_STEAL_TIME KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 5) +#define X86_FEATURE_KVM_PV_EOI KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 6) +#define X86_FEATURE_KVM_PV_UNHALT KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 7) +/* Bit 8 apparently isn't used?!?! */ +#define X86_FEATURE_KVM_PV_TLB_FLUSH KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 9) +#define X86_FEATURE_KVM_ASYNC_PF_VMEXIT KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 10) +#define X86_FEATURE_KVM_PV_SEND_IPI KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 11) +#define X86_FEATURE_KVM_POLL_CONTROL KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 12) +#define X86_FEATURE_KVM_PV_SCHED_YIELD KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 13) +#define X86_FEATURE_KVM_ASYNC_PF_INT KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 14) +#define X86_FEATURE_KVM_MSI_EXT_DEST_ID KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 15) +#define X86_FEATURE_KVM_HC_MAP_GPA_RANGE KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 16) +#define X86_FEATURE_KVM_MIGRATION_CONTROL KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 17) + +/* + * Same idea as X86_FEATURE_XXX, but X86_PROPERTY_XXX retrieves a multi-bit + * value/property as opposed to a single-bit feature. Again, pack the info + * into a 64-bit value to pass by value with no overhead. + */ +struct kvm_x86_cpu_property { + u32 function; + u8 index; + u8 reg; + u8 lo_bit; + u8 hi_bit; +}; +#define KVM_X86_CPU_PROPERTY(fn, idx, gpr, low_bit, high_bit) \ +({ \ + struct kvm_x86_cpu_property property = { \ + .function = fn, \ + .index = idx, \ + .reg = KVM_CPUID_##gpr, \ + .lo_bit = low_bit, \ + .hi_bit = high_bit, \ + }; \ + \ + kvm_static_assert(low_bit < high_bit); \ + kvm_static_assert((fn & 0xc0000000) == 0 || \ + (fn & 0xc0000000) == 0x40000000 || \ + (fn & 0xc0000000) == 0x80000000 || \ + (fn & 0xc0000000) == 0xc0000000); \ + kvm_static_assert(idx < BIT(sizeof(property.index) * BITS_PER_BYTE)); \ + property; \ +}) + +#define X86_PROPERTY_MAX_BASIC_LEAF KVM_X86_CPU_PROPERTY(0, 0, EAX, 0, 31) +#define X86_PROPERTY_PMU_VERSION KVM_X86_CPU_PROPERTY(0xa, 0, EAX, 0, 7) +#define X86_PROPERTY_PMU_NR_GP_COUNTERS KVM_X86_CPU_PROPERTY(0xa, 0, EAX, 8, 15) +#define X86_PROPERTY_PMU_GP_COUNTERS_BIT_WIDTH KVM_X86_CPU_PROPERTY(0xa, 0, EAX, 16, 23) +#define X86_PROPERTY_PMU_EBX_BIT_VECTOR_LENGTH KVM_X86_CPU_PROPERTY(0xa, 0, EAX, 24, 31) +#define X86_PROPERTY_PMU_EVENTS_MASK KVM_X86_CPU_PROPERTY(0xa, 0, EBX, 0, 7) +#define X86_PROPERTY_PMU_FIXED_COUNTERS_BITMASK KVM_X86_CPU_PROPERTY(0xa, 0, ECX, 0, 31) +#define X86_PROPERTY_PMU_NR_FIXED_COUNTERS KVM_X86_CPU_PROPERTY(0xa, 0, EDX, 0, 4) +#define X86_PROPERTY_PMU_FIXED_COUNTERS_BIT_WIDTH KVM_X86_CPU_PROPERTY(0xa, 0, EDX, 5, 12) + +#define X86_PROPERTY_SUPPORTED_XCR0_LO KVM_X86_CPU_PROPERTY(0xd, 0, EAX, 0, 31) +#define X86_PROPERTY_XSTATE_MAX_SIZE_XCR0 KVM_X86_CPU_PROPERTY(0xd, 0, EBX, 0, 31) +#define X86_PROPERTY_XSTATE_MAX_SIZE KVM_X86_CPU_PROPERTY(0xd, 0, ECX, 0, 31) +#define X86_PROPERTY_SUPPORTED_XCR0_HI KVM_X86_CPU_PROPERTY(0xd, 0, EDX, 0, 31) + +#define X86_PROPERTY_XSTATE_TILE_SIZE KVM_X86_CPU_PROPERTY(0xd, 18, EAX, 0, 31) +#define X86_PROPERTY_XSTATE_TILE_OFFSET KVM_X86_CPU_PROPERTY(0xd, 18, EBX, 0, 31) +#define X86_PROPERTY_AMX_MAX_PALETTE_TABLES KVM_X86_CPU_PROPERTY(0x1d, 0, EAX, 0, 31) +#define X86_PROPERTY_AMX_TOTAL_TILE_BYTES KVM_X86_CPU_PROPERTY(0x1d, 1, EAX, 0, 15) +#define X86_PROPERTY_AMX_BYTES_PER_TILE KVM_X86_CPU_PROPERTY(0x1d, 1, EAX, 16, 31) +#define X86_PROPERTY_AMX_BYTES_PER_ROW KVM_X86_CPU_PROPERTY(0x1d, 1, EBX, 0, 15) +#define X86_PROPERTY_AMX_NR_TILE_REGS KVM_X86_CPU_PROPERTY(0x1d, 1, EBX, 16, 31) +#define X86_PROPERTY_AMX_MAX_ROWS KVM_X86_CPU_PROPERTY(0x1d, 1, ECX, 0, 15) + +#define X86_PROPERTY_MAX_KVM_LEAF KVM_X86_CPU_PROPERTY(0x40000000, 0, EAX, 0, 31) + +#define X86_PROPERTY_MAX_EXT_LEAF KVM_X86_CPU_PROPERTY(0x80000000, 0, EAX, 0, 31) +#define X86_PROPERTY_MAX_PHY_ADDR KVM_X86_CPU_PROPERTY(0x80000008, 0, EAX, 0, 7) +#define X86_PROPERTY_MAX_VIRT_ADDR KVM_X86_CPU_PROPERTY(0x80000008, 0, EAX, 8, 15) +#define X86_PROPERTY_PHYS_ADDR_REDUCTION KVM_X86_CPU_PROPERTY(0x8000001F, 0, EBX, 6, 11) + +#define X86_PROPERTY_MAX_CENTAUR_LEAF KVM_X86_CPU_PROPERTY(0xC0000000, 0, EAX, 0, 31) + +/* + * Intel's architectural PMU events are bizarre. They have a "feature" bit + * that indicates the feature is _not_ supported, and a property that states + * the length of the bit mask of unsupported features. A feature is supported + * if the size of the bit mask is larger than the "unavailable" bit, and said + * bit is not set. + * + * Wrap the "unavailable" feature to simplify checking whether or not a given + * architectural event is supported. + */ +struct kvm_x86_pmu_feature { + struct kvm_x86_cpu_feature anti_feature; +}; +#define KVM_X86_PMU_FEATURE(name, __bit) \ +({ \ + struct kvm_x86_pmu_feature feature = { \ + .anti_feature = KVM_X86_CPU_FEATURE(0xa, 0, EBX, __bit), \ + }; \ + \ + feature; \ +}) + +#define X86_PMU_FEATURE_BRANCH_INSNS_RETIRED KVM_X86_PMU_FEATURE(BRANCH_INSNS_RETIRED, 5) + +static inline unsigned int x86_family(unsigned int eax) +{ + unsigned int x86; + + x86 = (eax >> 8) & 0xf; + + if (x86 == 0xf) + x86 += (eax >> 20) & 0xff; + + return x86; +} + +static inline unsigned int x86_model(unsigned int eax) +{ + return ((eax >> 12) & 0xf0) | ((eax >> 4) & 0x0f); +} + +/* Page table bitfield declarations */ +#define PTE_PRESENT_MASK BIT_ULL(0) +#define PTE_WRITABLE_MASK BIT_ULL(1) +#define PTE_USER_MASK BIT_ULL(2) +#define PTE_ACCESSED_MASK BIT_ULL(5) +#define PTE_DIRTY_MASK BIT_ULL(6) +#define PTE_LARGE_MASK BIT_ULL(7) +#define PTE_GLOBAL_MASK BIT_ULL(8) +#define PTE_NX_MASK BIT_ULL(63) + +#define PHYSICAL_PAGE_MASK GENMASK_ULL(51, 12) + +#define PAGE_SHIFT 12 +#define PAGE_SIZE (1ULL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1) & PHYSICAL_PAGE_MASK) + +#define HUGEPAGE_SHIFT(x) (PAGE_SHIFT + (((x) - 1) * 9)) +#define HUGEPAGE_SIZE(x) (1UL << HUGEPAGE_SHIFT(x)) +#define HUGEPAGE_MASK(x) (~(HUGEPAGE_SIZE(x) - 1) & PHYSICAL_PAGE_MASK) + +#define PTE_GET_PA(pte) ((pte) & PHYSICAL_PAGE_MASK) +#define PTE_GET_PFN(pte) (PTE_GET_PA(pte) >> PAGE_SHIFT) + +/* General Registers in 64-Bit Mode */ +struct gpr64_regs { + u64 rax; + u64 rcx; + u64 rdx; + u64 rbx; + u64 rsp; + u64 rbp; + u64 rsi; + u64 rdi; + u64 r8; + u64 r9; + u64 r10; + u64 r11; + u64 r12; + u64 r13; + u64 r14; + u64 r15; +}; + +struct desc64 { + uint16_t limit0; + uint16_t base0; + unsigned base1:8, type:4, s:1, dpl:2, p:1; + unsigned limit1:4, avl:1, l:1, db:1, g:1, base2:8; + uint32_t base3; + uint32_t zero1; +} __attribute__((packed)); + +struct desc_ptr { + uint16_t size; + uint64_t address; +} __attribute__((packed)); + +struct kvm_x86_state { + struct kvm_xsave *xsave; + struct kvm_vcpu_events events; + struct kvm_mp_state mp_state; + struct kvm_regs regs; + struct kvm_xcrs xcrs; + struct kvm_sregs sregs; + struct kvm_debugregs debugregs; + union { + struct kvm_nested_state nested; + char nested_[16384]; + }; + struct kvm_msrs msrs; +}; + +static inline uint64_t get_desc64_base(const struct desc64 *desc) +{ + return ((uint64_t)desc->base3 << 32) | + (desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24)); +} + +static inline uint64_t rdtsc(void) +{ + uint32_t eax, edx; + uint64_t tsc_val; + /* + * The lfence is to wait (on Intel CPUs) until all previous + * instructions have been executed. If software requires RDTSC to be + * executed prior to execution of any subsequent instruction, it can + * execute LFENCE immediately after RDTSC + */ + __asm__ __volatile__("lfence; rdtsc; lfence" : "=a"(eax), "=d"(edx)); + tsc_val = ((uint64_t)edx) << 32 | eax; + return tsc_val; +} + +static inline uint64_t rdtscp(uint32_t *aux) +{ + uint32_t eax, edx; + + __asm__ __volatile__("rdtscp" : "=a"(eax), "=d"(edx), "=c"(*aux)); + return ((uint64_t)edx) << 32 | eax; +} + +static inline uint64_t rdmsr(uint32_t msr) +{ + uint32_t a, d; + + __asm__ __volatile__("rdmsr" : "=a"(a), "=d"(d) : "c"(msr) : "memory"); + + return a | ((uint64_t) d << 32); +} + +static inline void wrmsr(uint32_t msr, uint64_t value) +{ + uint32_t a = value; + uint32_t d = value >> 32; + + __asm__ __volatile__("wrmsr" :: "a"(a), "d"(d), "c"(msr) : "memory"); +} + + +static inline uint16_t inw(uint16_t port) +{ + uint16_t tmp; + + __asm__ __volatile__("in %%dx, %%ax" + : /* output */ "=a" (tmp) + : /* input */ "d" (port)); + + return tmp; +} + +static inline uint16_t get_es(void) +{ + uint16_t es; + + __asm__ __volatile__("mov %%es, %[es]" + : /* output */ [es]"=rm"(es)); + return es; +} + +static inline uint16_t get_cs(void) +{ + uint16_t cs; + + __asm__ __volatile__("mov %%cs, %[cs]" + : /* output */ [cs]"=rm"(cs)); + return cs; +} + +static inline uint16_t get_ss(void) +{ + uint16_t ss; + + __asm__ __volatile__("mov %%ss, %[ss]" + : /* output */ [ss]"=rm"(ss)); + return ss; +} + +static inline uint16_t get_ds(void) +{ + uint16_t ds; + + __asm__ __volatile__("mov %%ds, %[ds]" + : /* output */ [ds]"=rm"(ds)); + return ds; +} + +static inline uint16_t get_fs(void) +{ + uint16_t fs; + + __asm__ __volatile__("mov %%fs, %[fs]" + : /* output */ [fs]"=rm"(fs)); + return fs; +} + +static inline uint16_t get_gs(void) +{ + uint16_t gs; + + __asm__ __volatile__("mov %%gs, %[gs]" + : /* output */ [gs]"=rm"(gs)); + return gs; +} + +static inline uint16_t get_tr(void) +{ + uint16_t tr; + + __asm__ __volatile__("str %[tr]" + : /* output */ [tr]"=rm"(tr)); + return tr; +} + +static inline uint64_t get_cr0(void) +{ + uint64_t cr0; + + __asm__ __volatile__("mov %%cr0, %[cr0]" + : /* output */ [cr0]"=r"(cr0)); + return cr0; +} + +static inline uint64_t get_cr3(void) +{ + uint64_t cr3; + + __asm__ __volatile__("mov %%cr3, %[cr3]" + : /* output */ [cr3]"=r"(cr3)); + return cr3; +} + +static inline uint64_t get_cr4(void) +{ + uint64_t cr4; + + __asm__ __volatile__("mov %%cr4, %[cr4]" + : /* output */ [cr4]"=r"(cr4)); + return cr4; +} + +static inline void set_cr4(uint64_t val) +{ + __asm__ __volatile__("mov %0, %%cr4" : : "r" (val) : "memory"); +} + +static inline u64 xgetbv(u32 index) +{ + u32 eax, edx; + + __asm__ __volatile__("xgetbv;" + : "=a" (eax), "=d" (edx) + : "c" (index)); + return eax | ((u64)edx << 32); +} + +static inline void xsetbv(u32 index, u64 value) +{ + u32 eax = value; + u32 edx = value >> 32; + + __asm__ __volatile__("xsetbv" :: "a" (eax), "d" (edx), "c" (index)); +} + +static inline void wrpkru(u32 pkru) +{ + /* Note, ECX and EDX are architecturally required to be '0'. */ + asm volatile(".byte 0x0f,0x01,0xef\n\t" + : : "a" (pkru), "c"(0), "d"(0)); +} + +static inline struct desc_ptr get_gdt(void) +{ + struct desc_ptr gdt; + __asm__ __volatile__("sgdt %[gdt]" + : /* output */ [gdt]"=m"(gdt)); + return gdt; +} + +static inline struct desc_ptr get_idt(void) +{ + struct desc_ptr idt; + __asm__ __volatile__("sidt %[idt]" + : /* output */ [idt]"=m"(idt)); + return idt; +} + +static inline void outl(uint16_t port, uint32_t value) +{ + __asm__ __volatile__("outl %%eax, %%dx" : : "d"(port), "a"(value)); +} + +static inline void __cpuid(uint32_t function, uint32_t index, + uint32_t *eax, uint32_t *ebx, + uint32_t *ecx, uint32_t *edx) +{ + *eax = function; + *ecx = index; + + asm volatile("cpuid" + : "=a" (*eax), + "=b" (*ebx), + "=c" (*ecx), + "=d" (*edx) + : "0" (*eax), "2" (*ecx) + : "memory"); +} + +static inline void cpuid(uint32_t function, + uint32_t *eax, uint32_t *ebx, + uint32_t *ecx, uint32_t *edx) +{ + return __cpuid(function, 0, eax, ebx, ecx, edx); +} + +static inline uint32_t this_cpu_fms(void) +{ + uint32_t eax, ebx, ecx, edx; + + cpuid(1, &eax, &ebx, &ecx, &edx); + return eax; +} + +static inline uint32_t this_cpu_family(void) +{ + return x86_family(this_cpu_fms()); +} + +static inline uint32_t this_cpu_model(void) +{ + return x86_model(this_cpu_fms()); +} + +static inline bool this_cpu_vendor_string_is(const char *vendor) +{ + const uint32_t *chunk = (const uint32_t *)vendor; + uint32_t eax, ebx, ecx, edx; + + cpuid(0, &eax, &ebx, &ecx, &edx); + return (ebx == chunk[0] && edx == chunk[1] && ecx == chunk[2]); +} + +static inline bool this_cpu_is_intel(void) +{ + return this_cpu_vendor_string_is("GenuineIntel"); +} + +/* + * Exclude early K5 samples with a vendor string of "AMDisbetter!" + */ +static inline bool this_cpu_is_amd(void) +{ + return this_cpu_vendor_string_is("AuthenticAMD"); +} + +static inline uint32_t __this_cpu_has(uint32_t function, uint32_t index, + uint8_t reg, uint8_t lo, uint8_t hi) +{ + uint32_t gprs[4]; + + __cpuid(function, index, + &gprs[KVM_CPUID_EAX], &gprs[KVM_CPUID_EBX], + &gprs[KVM_CPUID_ECX], &gprs[KVM_CPUID_EDX]); + + return (gprs[reg] & GENMASK(hi, lo)) >> lo; +} + +static inline bool this_cpu_has(struct kvm_x86_cpu_feature feature) +{ + return __this_cpu_has(feature.function, feature.index, + feature.reg, feature.bit, feature.bit); +} + +static inline uint32_t this_cpu_property(struct kvm_x86_cpu_property property) +{ + return __this_cpu_has(property.function, property.index, + property.reg, property.lo_bit, property.hi_bit); +} + +static __always_inline bool this_cpu_has_p(struct kvm_x86_cpu_property property) +{ + uint32_t max_leaf; + + switch (property.function & 0xc0000000) { + case 0: + max_leaf = this_cpu_property(X86_PROPERTY_MAX_BASIC_LEAF); + break; + case 0x40000000: + max_leaf = this_cpu_property(X86_PROPERTY_MAX_KVM_LEAF); + break; + case 0x80000000: + max_leaf = this_cpu_property(X86_PROPERTY_MAX_EXT_LEAF); + break; + case 0xc0000000: + max_leaf = this_cpu_property(X86_PROPERTY_MAX_CENTAUR_LEAF); + } + return max_leaf >= property.function; +} + +static inline bool this_pmu_has(struct kvm_x86_pmu_feature feature) +{ + uint32_t nr_bits = this_cpu_property(X86_PROPERTY_PMU_EBX_BIT_VECTOR_LENGTH); + + return nr_bits > feature.anti_feature.bit && + !this_cpu_has(feature.anti_feature); +} + +static __always_inline uint64_t this_cpu_supported_xcr0(void) +{ + if (!this_cpu_has_p(X86_PROPERTY_SUPPORTED_XCR0_LO)) + return 0; + + return this_cpu_property(X86_PROPERTY_SUPPORTED_XCR0_LO) | + ((uint64_t)this_cpu_property(X86_PROPERTY_SUPPORTED_XCR0_HI) << 32); +} + +typedef u32 __attribute__((vector_size(16))) sse128_t; +#define __sse128_u union { sse128_t vec; u64 as_u64[2]; u32 as_u32[4]; } +#define sse128_lo(x) ({ __sse128_u t; t.vec = x; t.as_u64[0]; }) +#define sse128_hi(x) ({ __sse128_u t; t.vec = x; t.as_u64[1]; }) + +static inline void read_sse_reg(int reg, sse128_t *data) +{ + switch (reg) { + case 0: + asm("movdqa %%xmm0, %0" : "=m"(*data)); + break; + case 1: + asm("movdqa %%xmm1, %0" : "=m"(*data)); + break; + case 2: + asm("movdqa %%xmm2, %0" : "=m"(*data)); + break; + case 3: + asm("movdqa %%xmm3, %0" : "=m"(*data)); + break; + case 4: + asm("movdqa %%xmm4, %0" : "=m"(*data)); + break; + case 5: + asm("movdqa %%xmm5, %0" : "=m"(*data)); + break; + case 6: + asm("movdqa %%xmm6, %0" : "=m"(*data)); + break; + case 7: + asm("movdqa %%xmm7, %0" : "=m"(*data)); + break; + default: + BUG(); + } +} + +static inline void write_sse_reg(int reg, const sse128_t *data) +{ + switch (reg) { + case 0: + asm("movdqa %0, %%xmm0" : : "m"(*data)); + break; + case 1: + asm("movdqa %0, %%xmm1" : : "m"(*data)); + break; + case 2: + asm("movdqa %0, %%xmm2" : : "m"(*data)); + break; + case 3: + asm("movdqa %0, %%xmm3" : : "m"(*data)); + break; + case 4: + asm("movdqa %0, %%xmm4" : : "m"(*data)); + break; + case 5: + asm("movdqa %0, %%xmm5" : : "m"(*data)); + break; + case 6: + asm("movdqa %0, %%xmm6" : : "m"(*data)); + break; + case 7: + asm("movdqa %0, %%xmm7" : : "m"(*data)); + break; + default: + BUG(); + } +} + +static inline void cpu_relax(void) +{ + asm volatile("rep; nop" ::: "memory"); +} + +#define ud2() \ + __asm__ __volatile__( \ + "ud2\n" \ + ) + +#define hlt() \ + __asm__ __volatile__( \ + "hlt\n" \ + ) + +struct kvm_x86_state *vcpu_save_state(struct kvm_vcpu *vcpu); +void vcpu_load_state(struct kvm_vcpu *vcpu, struct kvm_x86_state *state); +void kvm_x86_state_cleanup(struct kvm_x86_state *state); + +const struct kvm_msr_list *kvm_get_msr_index_list(void); +const struct kvm_msr_list *kvm_get_feature_msr_index_list(void); +bool kvm_msr_is_in_save_restore_list(uint32_t msr_index); +uint64_t kvm_get_feature_msr(uint64_t msr_index); + +static inline void vcpu_msrs_get(struct kvm_vcpu *vcpu, + struct kvm_msrs *msrs) +{ + int r = __vcpu_ioctl(vcpu, KVM_GET_MSRS, msrs); + + TEST_ASSERT(r == msrs->nmsrs, + "KVM_GET_MSRS failed, r: %i (failed on MSR %x)", + r, r < 0 || r >= msrs->nmsrs ? -1 : msrs->entries[r].index); +} +static inline void vcpu_msrs_set(struct kvm_vcpu *vcpu, struct kvm_msrs *msrs) +{ + int r = __vcpu_ioctl(vcpu, KVM_SET_MSRS, msrs); + + TEST_ASSERT(r == msrs->nmsrs, + "KVM_SET_MSRS failed, r: %i (failed on MSR %x)", + r, r < 0 || r >= msrs->nmsrs ? -1 : msrs->entries[r].index); +} +static inline void vcpu_debugregs_get(struct kvm_vcpu *vcpu, + struct kvm_debugregs *debugregs) +{ + vcpu_ioctl(vcpu, KVM_GET_DEBUGREGS, debugregs); +} +static inline void vcpu_debugregs_set(struct kvm_vcpu *vcpu, + struct kvm_debugregs *debugregs) +{ + vcpu_ioctl(vcpu, KVM_SET_DEBUGREGS, debugregs); +} +static inline void vcpu_xsave_get(struct kvm_vcpu *vcpu, + struct kvm_xsave *xsave) +{ + vcpu_ioctl(vcpu, KVM_GET_XSAVE, xsave); +} +static inline void vcpu_xsave2_get(struct kvm_vcpu *vcpu, + struct kvm_xsave *xsave) +{ + vcpu_ioctl(vcpu, KVM_GET_XSAVE2, xsave); +} +static inline void vcpu_xsave_set(struct kvm_vcpu *vcpu, + struct kvm_xsave *xsave) +{ + vcpu_ioctl(vcpu, KVM_SET_XSAVE, xsave); +} +static inline void vcpu_xcrs_get(struct kvm_vcpu *vcpu, + struct kvm_xcrs *xcrs) +{ + vcpu_ioctl(vcpu, KVM_GET_XCRS, xcrs); +} +static inline void vcpu_xcrs_set(struct kvm_vcpu *vcpu, struct kvm_xcrs *xcrs) +{ + vcpu_ioctl(vcpu, KVM_SET_XCRS, xcrs); +} + +const struct kvm_cpuid_entry2 *get_cpuid_entry(const struct kvm_cpuid2 *cpuid, + uint32_t function, uint32_t index); +const struct kvm_cpuid2 *kvm_get_supported_cpuid(void); +const struct kvm_cpuid2 *kvm_get_supported_hv_cpuid(void); +const struct kvm_cpuid2 *vcpu_get_supported_hv_cpuid(struct kvm_vcpu *vcpu); + +static inline uint32_t kvm_cpu_fms(void) +{ + return get_cpuid_entry(kvm_get_supported_cpuid(), 0x1, 0)->eax; +} + +static inline uint32_t kvm_cpu_family(void) +{ + return x86_family(kvm_cpu_fms()); +} + +static inline uint32_t kvm_cpu_model(void) +{ + return x86_model(kvm_cpu_fms()); +} + +bool kvm_cpuid_has(const struct kvm_cpuid2 *cpuid, + struct kvm_x86_cpu_feature feature); + +static inline bool kvm_cpu_has(struct kvm_x86_cpu_feature feature) +{ + return kvm_cpuid_has(kvm_get_supported_cpuid(), feature); +} + +uint32_t kvm_cpuid_property(const struct kvm_cpuid2 *cpuid, + struct kvm_x86_cpu_property property); + +static inline uint32_t kvm_cpu_property(struct kvm_x86_cpu_property property) +{ + return kvm_cpuid_property(kvm_get_supported_cpuid(), property); +} + +static __always_inline bool kvm_cpu_has_p(struct kvm_x86_cpu_property property) +{ + uint32_t max_leaf; + + switch (property.function & 0xc0000000) { + case 0: + max_leaf = kvm_cpu_property(X86_PROPERTY_MAX_BASIC_LEAF); + break; + case 0x40000000: + max_leaf = kvm_cpu_property(X86_PROPERTY_MAX_KVM_LEAF); + break; + case 0x80000000: + max_leaf = kvm_cpu_property(X86_PROPERTY_MAX_EXT_LEAF); + break; + case 0xc0000000: + max_leaf = kvm_cpu_property(X86_PROPERTY_MAX_CENTAUR_LEAF); + } + return max_leaf >= property.function; +} + +static inline bool kvm_pmu_has(struct kvm_x86_pmu_feature feature) +{ + uint32_t nr_bits = kvm_cpu_property(X86_PROPERTY_PMU_EBX_BIT_VECTOR_LENGTH); + + return nr_bits > feature.anti_feature.bit && + !kvm_cpu_has(feature.anti_feature); +} + +static __always_inline uint64_t kvm_cpu_supported_xcr0(void) +{ + if (!kvm_cpu_has_p(X86_PROPERTY_SUPPORTED_XCR0_LO)) + return 0; + + return kvm_cpu_property(X86_PROPERTY_SUPPORTED_XCR0_LO) | + ((uint64_t)kvm_cpu_property(X86_PROPERTY_SUPPORTED_XCR0_HI) << 32); +} + +static inline size_t kvm_cpuid2_size(int nr_entries) +{ + return sizeof(struct kvm_cpuid2) + + sizeof(struct kvm_cpuid_entry2) * nr_entries; +} + +/* + * Allocate a "struct kvm_cpuid2* instance, with the 0-length arrary of + * entries sized to hold @nr_entries. The caller is responsible for freeing + * the struct. + */ +static inline struct kvm_cpuid2 *allocate_kvm_cpuid2(int nr_entries) +{ + struct kvm_cpuid2 *cpuid; + + cpuid = malloc(kvm_cpuid2_size(nr_entries)); + TEST_ASSERT(cpuid, "-ENOMEM when allocating kvm_cpuid2"); + + cpuid->nent = nr_entries; + + return cpuid; +} + +void vcpu_init_cpuid(struct kvm_vcpu *vcpu, const struct kvm_cpuid2 *cpuid); +void vcpu_set_hv_cpuid(struct kvm_vcpu *vcpu); + +static inline struct kvm_cpuid_entry2 *__vcpu_get_cpuid_entry(struct kvm_vcpu *vcpu, + uint32_t function, + uint32_t index) +{ + return (struct kvm_cpuid_entry2 *)get_cpuid_entry(vcpu->cpuid, + function, index); +} + +static inline struct kvm_cpuid_entry2 *vcpu_get_cpuid_entry(struct kvm_vcpu *vcpu, + uint32_t function) +{ + return __vcpu_get_cpuid_entry(vcpu, function, 0); +} + +static inline int __vcpu_set_cpuid(struct kvm_vcpu *vcpu) +{ + int r; + + TEST_ASSERT(vcpu->cpuid, "Must do vcpu_init_cpuid() first"); + r = __vcpu_ioctl(vcpu, KVM_SET_CPUID2, vcpu->cpuid); + if (r) + return r; + + /* On success, refresh the cache to pick up adjustments made by KVM. */ + vcpu_ioctl(vcpu, KVM_GET_CPUID2, vcpu->cpuid); + return 0; +} + +static inline void vcpu_set_cpuid(struct kvm_vcpu *vcpu) +{ + TEST_ASSERT(vcpu->cpuid, "Must do vcpu_init_cpuid() first"); + vcpu_ioctl(vcpu, KVM_SET_CPUID2, vcpu->cpuid); + + /* Refresh the cache to pick up adjustments made by KVM. */ + vcpu_ioctl(vcpu, KVM_GET_CPUID2, vcpu->cpuid); +} + +void vcpu_set_cpuid_maxphyaddr(struct kvm_vcpu *vcpu, uint8_t maxphyaddr); + +void vcpu_clear_cpuid_entry(struct kvm_vcpu *vcpu, uint32_t function); +void vcpu_set_or_clear_cpuid_feature(struct kvm_vcpu *vcpu, + struct kvm_x86_cpu_feature feature, + bool set); + +static inline void vcpu_set_cpuid_feature(struct kvm_vcpu *vcpu, + struct kvm_x86_cpu_feature feature) +{ + vcpu_set_or_clear_cpuid_feature(vcpu, feature, true); + +} + +static inline void vcpu_clear_cpuid_feature(struct kvm_vcpu *vcpu, + struct kvm_x86_cpu_feature feature) +{ + vcpu_set_or_clear_cpuid_feature(vcpu, feature, false); +} + +uint64_t vcpu_get_msr(struct kvm_vcpu *vcpu, uint64_t msr_index); +int _vcpu_set_msr(struct kvm_vcpu *vcpu, uint64_t msr_index, uint64_t msr_value); + +/* + * Assert on an MSR access(es) and pretty print the MSR name when possible. + * Note, the caller provides the stringified name so that the name of macro is + * printed, not the value the macro resolves to (due to macro expansion). + */ +#define TEST_ASSERT_MSR(cond, fmt, msr, str, args...) \ +do { \ + if (__builtin_constant_p(msr)) { \ + TEST_ASSERT(cond, fmt, str, args); \ + } else if (!(cond)) { \ + char buf[16]; \ + \ + snprintf(buf, sizeof(buf), "MSR 0x%x", msr); \ + TEST_ASSERT(cond, fmt, buf, args); \ + } \ +} while (0) + +/* + * Returns true if KVM should return the last written value when reading an MSR + * from userspace, e.g. the MSR isn't a command MSR, doesn't emulate state that + * is changing, etc. This is NOT an exhaustive list! The intent is to filter + * out MSRs that are not durable _and_ that a selftest wants to write. + */ +static inline bool is_durable_msr(uint32_t msr) +{ + return msr != MSR_IA32_TSC; +} + +#define vcpu_set_msr(vcpu, msr, val) \ +do { \ + uint64_t r, v = val; \ + \ + TEST_ASSERT_MSR(_vcpu_set_msr(vcpu, msr, v) == 1, \ + "KVM_SET_MSRS failed on %s, value = 0x%lx", msr, #msr, v); \ + if (!is_durable_msr(msr)) \ + break; \ + r = vcpu_get_msr(vcpu, msr); \ + TEST_ASSERT_MSR(r == v, "Set %s to '0x%lx', got back '0x%lx'", msr, #msr, v, r);\ +} while (0) + +void kvm_get_cpu_address_width(unsigned int *pa_bits, unsigned int *va_bits); +bool vm_is_unrestricted_guest(struct kvm_vm *vm); + +struct ex_regs { + uint64_t rax, rcx, rdx, rbx; + uint64_t rbp, rsi, rdi; + uint64_t r8, r9, r10, r11; + uint64_t r12, r13, r14, r15; + uint64_t vector; + uint64_t error_code; + uint64_t rip; + uint64_t cs; + uint64_t rflags; +}; + +struct idt_entry { + uint16_t offset0; + uint16_t selector; + uint16_t ist : 3; + uint16_t : 5; + uint16_t type : 4; + uint16_t : 1; + uint16_t dpl : 2; + uint16_t p : 1; + uint16_t offset1; + uint32_t offset2; uint32_t reserved; +}; + +void vm_init_descriptor_tables(struct kvm_vm *vm); +void vcpu_init_descriptor_tables(struct kvm_vcpu *vcpu); +void vm_install_exception_handler(struct kvm_vm *vm, int vector, + void (*handler)(struct ex_regs *)); + +/* If a toddler were to say "abracadabra". */ +#define KVM_EXCEPTION_MAGIC 0xabacadabaULL + +/* + * KVM selftest exception fixup uses registers to coordinate with the exception + * handler, versus the kernel's in-memory tables and KVM-Unit-Tests's in-memory + * per-CPU data. Using only registers avoids having to map memory into the + * guest, doesn't require a valid, stable GS.base, and reduces the risk of + * for recursive faults when accessing memory in the handler. The downside to + * using registers is that it restricts what registers can be used by the actual + * instruction. But, selftests are 64-bit only, making register* pressure a + * minor concern. Use r9-r11 as they are volatile, i.e. don't need to be saved + * by the callee, and except for r11 are not implicit parameters to any + * instructions. Ideally, fixup would use r8-r10 and thus avoid implicit + * parameters entirely, but Hyper-V's hypercall ABI uses r8 and testing Hyper-V + * is higher priority than testing non-faulting SYSCALL/SYSRET. + * + * Note, the fixup handler deliberately does not handle #DE, i.e. the vector + * is guaranteed to be non-zero on fault. + * + * REGISTER INPUTS: + * r9 = MAGIC + * r10 = RIP + * r11 = new RIP on fault + * + * REGISTER OUTPUTS: + * r9 = exception vector (non-zero) + * r10 = error code + */ +#define KVM_ASM_SAFE(insn) \ + "mov $" __stringify(KVM_EXCEPTION_MAGIC) ", %%r9\n\t" \ + "lea 1f(%%rip), %%r10\n\t" \ + "lea 2f(%%rip), %%r11\n\t" \ + "1: " insn "\n\t" \ + "xor %%r9, %%r9\n\t" \ + "2:\n\t" \ + "mov %%r9b, %[vector]\n\t" \ + "mov %%r10, %[error_code]\n\t" + +#define KVM_ASM_SAFE_OUTPUTS(v, ec) [vector] "=qm"(v), [error_code] "=rm"(ec) +#define KVM_ASM_SAFE_CLOBBERS "r9", "r10", "r11" + +#define kvm_asm_safe(insn, inputs...) \ +({ \ + uint64_t ign_error_code; \ + uint8_t vector; \ + \ + asm volatile(KVM_ASM_SAFE(insn) \ + : KVM_ASM_SAFE_OUTPUTS(vector, ign_error_code) \ + : inputs \ + : KVM_ASM_SAFE_CLOBBERS); \ + vector; \ +}) + +#define kvm_asm_safe_ec(insn, error_code, inputs...) \ +({ \ + uint8_t vector; \ + \ + asm volatile(KVM_ASM_SAFE(insn) \ + : KVM_ASM_SAFE_OUTPUTS(vector, error_code) \ + : inputs \ + : KVM_ASM_SAFE_CLOBBERS); \ + vector; \ +}) + +static inline uint8_t rdmsr_safe(uint32_t msr, uint64_t *val) +{ + uint64_t error_code; + uint8_t vector; + uint32_t a, d; + + asm volatile(KVM_ASM_SAFE("rdmsr") + : "=a"(a), "=d"(d), KVM_ASM_SAFE_OUTPUTS(vector, error_code) + : "c"(msr) + : KVM_ASM_SAFE_CLOBBERS); + + *val = (uint64_t)a | ((uint64_t)d << 32); + return vector; +} + +static inline uint8_t wrmsr_safe(uint32_t msr, uint64_t val) +{ + return kvm_asm_safe("wrmsr", "a"(val & -1u), "d"(val >> 32), "c"(msr)); +} + +static inline uint8_t xsetbv_safe(uint32_t index, uint64_t value) +{ + u32 eax = value; + u32 edx = value >> 32; + + return kvm_asm_safe("xsetbv", "a" (eax), "d" (edx), "c" (index)); +} + +bool kvm_is_tdp_enabled(void); + +uint64_t *__vm_get_page_table_entry(struct kvm_vm *vm, uint64_t vaddr, + int *level); +uint64_t *vm_get_page_table_entry(struct kvm_vm *vm, uint64_t vaddr); + +uint64_t kvm_hypercall(uint64_t nr, uint64_t a0, uint64_t a1, uint64_t a2, + uint64_t a3); +uint64_t __xen_hypercall(uint64_t nr, uint64_t a0, void *a1); +void xen_hypercall(uint64_t nr, uint64_t a0, void *a1); + +void __vm_xsave_require_permission(uint64_t xfeature, const char *name); + +#define vm_xsave_require_permission(xfeature) \ + __vm_xsave_require_permission(xfeature, #xfeature) + +enum pg_level { + PG_LEVEL_NONE, + PG_LEVEL_4K, + PG_LEVEL_2M, + PG_LEVEL_1G, + PG_LEVEL_512G, + PG_LEVEL_NUM +}; + +#define PG_LEVEL_SHIFT(_level) ((_level - 1) * 9 + 12) +#define PG_LEVEL_SIZE(_level) (1ull << PG_LEVEL_SHIFT(_level)) + +#define PG_SIZE_4K PG_LEVEL_SIZE(PG_LEVEL_4K) +#define PG_SIZE_2M PG_LEVEL_SIZE(PG_LEVEL_2M) +#define PG_SIZE_1G PG_LEVEL_SIZE(PG_LEVEL_1G) + +void __virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr, int level); +void virt_map_level(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr, + uint64_t nr_bytes, int level); + +/* + * Basic CPU control in CR0 + */ +#define X86_CR0_PE (1UL<<0) /* Protection Enable */ +#define X86_CR0_MP (1UL<<1) /* Monitor Coprocessor */ +#define X86_CR0_EM (1UL<<2) /* Emulation */ +#define X86_CR0_TS (1UL<<3) /* Task Switched */ +#define X86_CR0_ET (1UL<<4) /* Extension Type */ +#define X86_CR0_NE (1UL<<5) /* Numeric Error */ +#define X86_CR0_WP (1UL<<16) /* Write Protect */ +#define X86_CR0_AM (1UL<<18) /* Alignment Mask */ +#define X86_CR0_NW (1UL<<29) /* Not Write-through */ +#define X86_CR0_CD (1UL<<30) /* Cache Disable */ +#define X86_CR0_PG (1UL<<31) /* Paging */ + +#define PFERR_PRESENT_BIT 0 +#define PFERR_WRITE_BIT 1 +#define PFERR_USER_BIT 2 +#define PFERR_RSVD_BIT 3 +#define PFERR_FETCH_BIT 4 +#define PFERR_PK_BIT 5 +#define PFERR_SGX_BIT 15 +#define PFERR_GUEST_FINAL_BIT 32 +#define PFERR_GUEST_PAGE_BIT 33 +#define PFERR_IMPLICIT_ACCESS_BIT 48 + +#define PFERR_PRESENT_MASK BIT(PFERR_PRESENT_BIT) +#define PFERR_WRITE_MASK BIT(PFERR_WRITE_BIT) +#define PFERR_USER_MASK BIT(PFERR_USER_BIT) +#define PFERR_RSVD_MASK BIT(PFERR_RSVD_BIT) +#define PFERR_FETCH_MASK BIT(PFERR_FETCH_BIT) +#define PFERR_PK_MASK BIT(PFERR_PK_BIT) +#define PFERR_SGX_MASK BIT(PFERR_SGX_BIT) +#define PFERR_GUEST_FINAL_MASK BIT_ULL(PFERR_GUEST_FINAL_BIT) +#define PFERR_GUEST_PAGE_MASK BIT_ULL(PFERR_GUEST_PAGE_BIT) +#define PFERR_IMPLICIT_ACCESS BIT_ULL(PFERR_IMPLICIT_ACCESS_BIT) + +#endif /* SELFTEST_KVM_PROCESSOR_H */ diff --git a/tools/testing/selftests/kvm/include/x86_64/svm.h b/tools/testing/selftests/kvm/include/x86_64/svm.h new file mode 100644 index 0000000000..4803e10560 --- /dev/null +++ b/tools/testing/selftests/kvm/include/x86_64/svm.h @@ -0,0 +1,326 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * tools/testing/selftests/kvm/include/x86_64/svm.h + * This is a copy of arch/x86/include/asm/svm.h + * + */ + +#ifndef SELFTEST_KVM_SVM_H +#define SELFTEST_KVM_SVM_H + +enum { + INTERCEPT_INTR, + INTERCEPT_NMI, + INTERCEPT_SMI, + INTERCEPT_INIT, + INTERCEPT_VINTR, + INTERCEPT_SELECTIVE_CR0, + INTERCEPT_STORE_IDTR, + INTERCEPT_STORE_GDTR, + INTERCEPT_STORE_LDTR, + INTERCEPT_STORE_TR, + INTERCEPT_LOAD_IDTR, + INTERCEPT_LOAD_GDTR, + INTERCEPT_LOAD_LDTR, + INTERCEPT_LOAD_TR, + INTERCEPT_RDTSC, + INTERCEPT_RDPMC, + INTERCEPT_PUSHF, + INTERCEPT_POPF, + INTERCEPT_CPUID, + INTERCEPT_RSM, + INTERCEPT_IRET, + INTERCEPT_INTn, + INTERCEPT_INVD, + INTERCEPT_PAUSE, + INTERCEPT_HLT, + INTERCEPT_INVLPG, + INTERCEPT_INVLPGA, + INTERCEPT_IOIO_PROT, + INTERCEPT_MSR_PROT, + INTERCEPT_TASK_SWITCH, + INTERCEPT_FERR_FREEZE, + INTERCEPT_SHUTDOWN, + INTERCEPT_VMRUN, + INTERCEPT_VMMCALL, + INTERCEPT_VMLOAD, + INTERCEPT_VMSAVE, + INTERCEPT_STGI, + INTERCEPT_CLGI, + INTERCEPT_SKINIT, + INTERCEPT_RDTSCP, + INTERCEPT_ICEBP, + INTERCEPT_WBINVD, + INTERCEPT_MONITOR, + INTERCEPT_MWAIT, + INTERCEPT_MWAIT_COND, + INTERCEPT_XSETBV, + INTERCEPT_RDPRU, +}; + +struct hv_vmcb_enlightenments { + struct __packed hv_enlightenments_control { + u32 nested_flush_hypercall:1; + u32 msr_bitmap:1; + u32 enlightened_npt_tlb: 1; + u32 reserved:29; + } __packed hv_enlightenments_control; + u32 hv_vp_id; + u64 hv_vm_id; + u64 partition_assist_page; + u64 reserved; +} __packed; + +/* + * Hyper-V uses the software reserved clean bit in VMCB + */ +#define HV_VMCB_NESTED_ENLIGHTENMENTS (1U << 31) + +/* Synthetic VM-Exit */ +#define HV_SVM_EXITCODE_ENL 0xf0000000 +#define HV_SVM_ENL_EXITCODE_TRAP_AFTER_FLUSH (1) + +struct __attribute__ ((__packed__)) vmcb_control_area { + u32 intercept_cr; + u32 intercept_dr; + u32 intercept_exceptions; + u64 intercept; + u8 reserved_1[40]; + u16 pause_filter_thresh; + u16 pause_filter_count; + u64 iopm_base_pa; + u64 msrpm_base_pa; + u64 tsc_offset; + u32 asid; + u8 tlb_ctl; + u8 reserved_2[3]; + u32 int_ctl; + u32 int_vector; + u32 int_state; + u8 reserved_3[4]; + u32 exit_code; + u32 exit_code_hi; + u64 exit_info_1; + u64 exit_info_2; + u32 exit_int_info; + u32 exit_int_info_err; + u64 nested_ctl; + u64 avic_vapic_bar; + u8 reserved_4[8]; + u32 event_inj; + u32 event_inj_err; + u64 nested_cr3; + u64 virt_ext; + u32 clean; + u32 reserved_5; + u64 next_rip; + u8 insn_len; + u8 insn_bytes[15]; + u64 avic_backing_page; /* Offset 0xe0 */ + u8 reserved_6[8]; /* Offset 0xe8 */ + u64 avic_logical_id; /* Offset 0xf0 */ + u64 avic_physical_id; /* Offset 0xf8 */ + u8 reserved_7[8]; + u64 vmsa_pa; /* Used for an SEV-ES guest */ + u8 reserved_8[720]; + /* + * Offset 0x3e0, 32 bytes reserved + * for use by hypervisor/software. + */ + union { + struct hv_vmcb_enlightenments hv_enlightenments; + u8 reserved_sw[32]; + }; +}; + + +#define TLB_CONTROL_DO_NOTHING 0 +#define TLB_CONTROL_FLUSH_ALL_ASID 1 +#define TLB_CONTROL_FLUSH_ASID 3 +#define TLB_CONTROL_FLUSH_ASID_LOCAL 7 + +#define V_TPR_MASK 0x0f + +#define V_IRQ_SHIFT 8 +#define V_IRQ_MASK (1 << V_IRQ_SHIFT) + +#define V_GIF_SHIFT 9 +#define V_GIF_MASK (1 << V_GIF_SHIFT) + +#define V_INTR_PRIO_SHIFT 16 +#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT) + +#define V_IGN_TPR_SHIFT 20 +#define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT) + +#define V_INTR_MASKING_SHIFT 24 +#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT) + +#define V_GIF_ENABLE_SHIFT 25 +#define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT) + +#define AVIC_ENABLE_SHIFT 31 +#define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT) + +#define LBR_CTL_ENABLE_MASK BIT_ULL(0) +#define VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK BIT_ULL(1) + +#define SVM_INTERRUPT_SHADOW_MASK 1 + +#define SVM_IOIO_STR_SHIFT 2 +#define SVM_IOIO_REP_SHIFT 3 +#define SVM_IOIO_SIZE_SHIFT 4 +#define SVM_IOIO_ASIZE_SHIFT 7 + +#define SVM_IOIO_TYPE_MASK 1 +#define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT) +#define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT) +#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT) +#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT) + +#define SVM_VM_CR_VALID_MASK 0x001fULL +#define SVM_VM_CR_SVM_LOCK_MASK 0x0008ULL +#define SVM_VM_CR_SVM_DIS_MASK 0x0010ULL + +#define SVM_NESTED_CTL_NP_ENABLE BIT(0) +#define SVM_NESTED_CTL_SEV_ENABLE BIT(1) + +struct __attribute__ ((__packed__)) vmcb_seg { + u16 selector; + u16 attrib; + u32 limit; + u64 base; +}; + +struct __attribute__ ((__packed__)) vmcb_save_area { + struct vmcb_seg es; + struct vmcb_seg cs; + struct vmcb_seg ss; + struct vmcb_seg ds; + struct vmcb_seg fs; + struct vmcb_seg gs; + struct vmcb_seg gdtr; + struct vmcb_seg ldtr; + struct vmcb_seg idtr; + struct vmcb_seg tr; + u8 reserved_1[43]; + u8 cpl; + u8 reserved_2[4]; + u64 efer; + u8 reserved_3[112]; + u64 cr4; + u64 cr3; + u64 cr0; + u64 dr7; + u64 dr6; + u64 rflags; + u64 rip; + u8 reserved_4[88]; + u64 rsp; + u8 reserved_5[24]; + u64 rax; + u64 star; + u64 lstar; + u64 cstar; + u64 sfmask; + u64 kernel_gs_base; + u64 sysenter_cs; + u64 sysenter_esp; + u64 sysenter_eip; + u64 cr2; + u8 reserved_6[32]; + u64 g_pat; + u64 dbgctl; + u64 br_from; + u64 br_to; + u64 last_excp_from; + u64 last_excp_to; +}; + +struct __attribute__ ((__packed__)) vmcb { + struct vmcb_control_area control; + struct vmcb_save_area save; +}; + +#define SVM_VM_CR_SVM_DISABLE 4 + +#define SVM_SELECTOR_S_SHIFT 4 +#define SVM_SELECTOR_DPL_SHIFT 5 +#define SVM_SELECTOR_P_SHIFT 7 +#define SVM_SELECTOR_AVL_SHIFT 8 +#define SVM_SELECTOR_L_SHIFT 9 +#define SVM_SELECTOR_DB_SHIFT 10 +#define SVM_SELECTOR_G_SHIFT 11 + +#define SVM_SELECTOR_TYPE_MASK (0xf) +#define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT) +#define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT) +#define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT) +#define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT) +#define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT) +#define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT) +#define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT) + +#define SVM_SELECTOR_WRITE_MASK (1 << 1) +#define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK +#define SVM_SELECTOR_CODE_MASK (1 << 3) + +#define INTERCEPT_CR0_READ 0 +#define INTERCEPT_CR3_READ 3 +#define INTERCEPT_CR4_READ 4 +#define INTERCEPT_CR8_READ 8 +#define INTERCEPT_CR0_WRITE (16 + 0) +#define INTERCEPT_CR3_WRITE (16 + 3) +#define INTERCEPT_CR4_WRITE (16 + 4) +#define INTERCEPT_CR8_WRITE (16 + 8) + +#define INTERCEPT_DR0_READ 0 +#define INTERCEPT_DR1_READ 1 +#define INTERCEPT_DR2_READ 2 +#define INTERCEPT_DR3_READ 3 +#define INTERCEPT_DR4_READ 4 +#define INTERCEPT_DR5_READ 5 +#define INTERCEPT_DR6_READ 6 +#define INTERCEPT_DR7_READ 7 +#define INTERCEPT_DR0_WRITE (16 + 0) +#define INTERCEPT_DR1_WRITE (16 + 1) +#define INTERCEPT_DR2_WRITE (16 + 2) +#define INTERCEPT_DR3_WRITE (16 + 3) +#define INTERCEPT_DR4_WRITE (16 + 4) +#define INTERCEPT_DR5_WRITE (16 + 5) +#define INTERCEPT_DR6_WRITE (16 + 6) +#define INTERCEPT_DR7_WRITE (16 + 7) + +#define SVM_EVTINJ_VEC_MASK 0xff + +#define SVM_EVTINJ_TYPE_SHIFT 8 +#define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT) + +#define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT) +#define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT) +#define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT) +#define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT) + +#define SVM_EVTINJ_VALID (1 << 31) +#define SVM_EVTINJ_VALID_ERR (1 << 11) + +#define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK +#define SVM_EXITINTINFO_TYPE_MASK SVM_EVTINJ_TYPE_MASK + +#define SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR +#define SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI +#define SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT +#define SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT + +#define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID +#define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR + +#define SVM_EXITINFOSHIFT_TS_REASON_IRET 36 +#define SVM_EXITINFOSHIFT_TS_REASON_JMP 38 +#define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44 + +#define SVM_EXITINFO_REG_MASK 0x0F + +#define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP) + +#endif /* SELFTEST_KVM_SVM_H */ diff --git a/tools/testing/selftests/kvm/include/x86_64/svm_util.h b/tools/testing/selftests/kvm/include/x86_64/svm_util.h new file mode 100644 index 0000000000..044f0f872b --- /dev/null +++ b/tools/testing/selftests/kvm/include/x86_64/svm_util.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * tools/testing/selftests/kvm/include/x86_64/svm_utils.h + * Header for nested SVM testing + * + * Copyright (C) 2020, Red Hat, Inc. + */ + +#ifndef SELFTEST_KVM_SVM_UTILS_H +#define SELFTEST_KVM_SVM_UTILS_H + +#include <asm/svm.h> + +#include <stdint.h> +#include "svm.h" +#include "processor.h" + +struct svm_test_data { + /* VMCB */ + struct vmcb *vmcb; /* gva */ + void *vmcb_hva; + uint64_t vmcb_gpa; + + /* host state-save area */ + struct vmcb_save_area *save_area; /* gva */ + void *save_area_hva; + uint64_t save_area_gpa; + + /* MSR-Bitmap */ + void *msr; /* gva */ + void *msr_hva; + uint64_t msr_gpa; +}; + +static inline void vmmcall(void) +{ + /* + * Stuff RAX and RCX with "safe" values to make sure L0 doesn't handle + * it as a valid hypercall (e.g. Hyper-V L2 TLB flush) as the intended + * use of this function is to exit to L1 from L2. Clobber all other + * GPRs as L1 doesn't correctly preserve them during vmexits. + */ + __asm__ __volatile__("push %%rbp; vmmcall; pop %%rbp" + : : "a"(0xdeadbeef), "c"(0xbeefdead) + : "rbx", "rdx", "rsi", "rdi", "r8", "r9", + "r10", "r11", "r12", "r13", "r14", "r15"); +} + +#define stgi() \ + __asm__ __volatile__( \ + "stgi\n" \ + ) + +#define clgi() \ + __asm__ __volatile__( \ + "clgi\n" \ + ) + +struct svm_test_data *vcpu_alloc_svm(struct kvm_vm *vm, vm_vaddr_t *p_svm_gva); +void generic_svm_setup(struct svm_test_data *svm, void *guest_rip, void *guest_rsp); +void run_guest(struct vmcb *vmcb, uint64_t vmcb_gpa); + +int open_sev_dev_path_or_exit(void); + +#endif /* SELFTEST_KVM_SVM_UTILS_H */ diff --git a/tools/testing/selftests/kvm/include/x86_64/ucall.h b/tools/testing/selftests/kvm/include/x86_64/ucall.h new file mode 100644 index 0000000000..06b244bd06 --- /dev/null +++ b/tools/testing/selftests/kvm/include/x86_64/ucall.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef SELFTEST_KVM_UCALL_H +#define SELFTEST_KVM_UCALL_H + +#include "kvm_util_base.h" + +#define UCALL_EXIT_REASON KVM_EXIT_IO + +static inline void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa) +{ +} + +#endif diff --git a/tools/testing/selftests/kvm/include/x86_64/vmx.h b/tools/testing/selftests/kvm/include/x86_64/vmx.h new file mode 100644 index 0000000000..5f0c0a29c5 --- /dev/null +++ b/tools/testing/selftests/kvm/include/x86_64/vmx.h @@ -0,0 +1,577 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * tools/testing/selftests/kvm/include/x86_64/vmx.h + * + * Copyright (C) 2018, Google LLC. + */ + +#ifndef SELFTEST_KVM_VMX_H +#define SELFTEST_KVM_VMX_H + +#include <asm/vmx.h> + +#include <stdint.h> +#include "processor.h" +#include "apic.h" + +/* + * Definitions of Primary Processor-Based VM-Execution Controls. + */ +#define CPU_BASED_INTR_WINDOW_EXITING 0x00000004 +#define CPU_BASED_USE_TSC_OFFSETTING 0x00000008 +#define CPU_BASED_HLT_EXITING 0x00000080 +#define CPU_BASED_INVLPG_EXITING 0x00000200 +#define CPU_BASED_MWAIT_EXITING 0x00000400 +#define CPU_BASED_RDPMC_EXITING 0x00000800 +#define CPU_BASED_RDTSC_EXITING 0x00001000 +#define CPU_BASED_CR3_LOAD_EXITING 0x00008000 +#define CPU_BASED_CR3_STORE_EXITING 0x00010000 +#define CPU_BASED_CR8_LOAD_EXITING 0x00080000 +#define CPU_BASED_CR8_STORE_EXITING 0x00100000 +#define CPU_BASED_TPR_SHADOW 0x00200000 +#define CPU_BASED_NMI_WINDOW_EXITING 0x00400000 +#define CPU_BASED_MOV_DR_EXITING 0x00800000 +#define CPU_BASED_UNCOND_IO_EXITING 0x01000000 +#define CPU_BASED_USE_IO_BITMAPS 0x02000000 +#define CPU_BASED_MONITOR_TRAP 0x08000000 +#define CPU_BASED_USE_MSR_BITMAPS 0x10000000 +#define CPU_BASED_MONITOR_EXITING 0x20000000 +#define CPU_BASED_PAUSE_EXITING 0x40000000 +#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS 0x80000000 + +#define CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR 0x0401e172 + +/* + * Definitions of Secondary Processor-Based VM-Execution Controls. + */ +#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001 +#define SECONDARY_EXEC_ENABLE_EPT 0x00000002 +#define SECONDARY_EXEC_DESC 0x00000004 +#define SECONDARY_EXEC_ENABLE_RDTSCP 0x00000008 +#define SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE 0x00000010 +#define SECONDARY_EXEC_ENABLE_VPID 0x00000020 +#define SECONDARY_EXEC_WBINVD_EXITING 0x00000040 +#define SECONDARY_EXEC_UNRESTRICTED_GUEST 0x00000080 +#define SECONDARY_EXEC_APIC_REGISTER_VIRT 0x00000100 +#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY 0x00000200 +#define SECONDARY_EXEC_PAUSE_LOOP_EXITING 0x00000400 +#define SECONDARY_EXEC_RDRAND_EXITING 0x00000800 +#define SECONDARY_EXEC_ENABLE_INVPCID 0x00001000 +#define SECONDARY_EXEC_ENABLE_VMFUNC 0x00002000 +#define SECONDARY_EXEC_SHADOW_VMCS 0x00004000 +#define SECONDARY_EXEC_RDSEED_EXITING 0x00010000 +#define SECONDARY_EXEC_ENABLE_PML 0x00020000 +#define SECONDARY_EPT_VE 0x00040000 +#define SECONDARY_ENABLE_XSAV_RESTORE 0x00100000 +#define SECONDARY_EXEC_TSC_SCALING 0x02000000 + +#define PIN_BASED_EXT_INTR_MASK 0x00000001 +#define PIN_BASED_NMI_EXITING 0x00000008 +#define PIN_BASED_VIRTUAL_NMIS 0x00000020 +#define PIN_BASED_VMX_PREEMPTION_TIMER 0x00000040 +#define PIN_BASED_POSTED_INTR 0x00000080 + +#define PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR 0x00000016 + +#define VM_EXIT_SAVE_DEBUG_CONTROLS 0x00000004 +#define VM_EXIT_HOST_ADDR_SPACE_SIZE 0x00000200 +#define VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL 0x00001000 +#define VM_EXIT_ACK_INTR_ON_EXIT 0x00008000 +#define VM_EXIT_SAVE_IA32_PAT 0x00040000 +#define VM_EXIT_LOAD_IA32_PAT 0x00080000 +#define VM_EXIT_SAVE_IA32_EFER 0x00100000 +#define VM_EXIT_LOAD_IA32_EFER 0x00200000 +#define VM_EXIT_SAVE_VMX_PREEMPTION_TIMER 0x00400000 + +#define VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR 0x00036dff + +#define VM_ENTRY_LOAD_DEBUG_CONTROLS 0x00000004 +#define VM_ENTRY_IA32E_MODE 0x00000200 +#define VM_ENTRY_SMM 0x00000400 +#define VM_ENTRY_DEACT_DUAL_MONITOR 0x00000800 +#define VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL 0x00002000 +#define VM_ENTRY_LOAD_IA32_PAT 0x00004000 +#define VM_ENTRY_LOAD_IA32_EFER 0x00008000 + +#define VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR 0x000011ff + +#define VMX_MISC_PREEMPTION_TIMER_RATE_MASK 0x0000001f +#define VMX_MISC_SAVE_EFER_LMA 0x00000020 + +#define VMX_EPT_VPID_CAP_1G_PAGES 0x00020000 +#define VMX_EPT_VPID_CAP_AD_BITS 0x00200000 + +#define EXIT_REASON_FAILED_VMENTRY 0x80000000 + +enum vmcs_field { + VIRTUAL_PROCESSOR_ID = 0x00000000, + POSTED_INTR_NV = 0x00000002, + GUEST_ES_SELECTOR = 0x00000800, + GUEST_CS_SELECTOR = 0x00000802, + GUEST_SS_SELECTOR = 0x00000804, + GUEST_DS_SELECTOR = 0x00000806, + GUEST_FS_SELECTOR = 0x00000808, + GUEST_GS_SELECTOR = 0x0000080a, + GUEST_LDTR_SELECTOR = 0x0000080c, + GUEST_TR_SELECTOR = 0x0000080e, + GUEST_INTR_STATUS = 0x00000810, + GUEST_PML_INDEX = 0x00000812, + HOST_ES_SELECTOR = 0x00000c00, + HOST_CS_SELECTOR = 0x00000c02, + HOST_SS_SELECTOR = 0x00000c04, + HOST_DS_SELECTOR = 0x00000c06, + HOST_FS_SELECTOR = 0x00000c08, + HOST_GS_SELECTOR = 0x00000c0a, + HOST_TR_SELECTOR = 0x00000c0c, + IO_BITMAP_A = 0x00002000, + IO_BITMAP_A_HIGH = 0x00002001, + IO_BITMAP_B = 0x00002002, + IO_BITMAP_B_HIGH = 0x00002003, + MSR_BITMAP = 0x00002004, + MSR_BITMAP_HIGH = 0x00002005, + VM_EXIT_MSR_STORE_ADDR = 0x00002006, + VM_EXIT_MSR_STORE_ADDR_HIGH = 0x00002007, + VM_EXIT_MSR_LOAD_ADDR = 0x00002008, + VM_EXIT_MSR_LOAD_ADDR_HIGH = 0x00002009, + VM_ENTRY_MSR_LOAD_ADDR = 0x0000200a, + VM_ENTRY_MSR_LOAD_ADDR_HIGH = 0x0000200b, + PML_ADDRESS = 0x0000200e, + PML_ADDRESS_HIGH = 0x0000200f, + TSC_OFFSET = 0x00002010, + TSC_OFFSET_HIGH = 0x00002011, + VIRTUAL_APIC_PAGE_ADDR = 0x00002012, + VIRTUAL_APIC_PAGE_ADDR_HIGH = 0x00002013, + APIC_ACCESS_ADDR = 0x00002014, + APIC_ACCESS_ADDR_HIGH = 0x00002015, + POSTED_INTR_DESC_ADDR = 0x00002016, + POSTED_INTR_DESC_ADDR_HIGH = 0x00002017, + EPT_POINTER = 0x0000201a, + EPT_POINTER_HIGH = 0x0000201b, + EOI_EXIT_BITMAP0 = 0x0000201c, + EOI_EXIT_BITMAP0_HIGH = 0x0000201d, + EOI_EXIT_BITMAP1 = 0x0000201e, + EOI_EXIT_BITMAP1_HIGH = 0x0000201f, + EOI_EXIT_BITMAP2 = 0x00002020, + EOI_EXIT_BITMAP2_HIGH = 0x00002021, + EOI_EXIT_BITMAP3 = 0x00002022, + EOI_EXIT_BITMAP3_HIGH = 0x00002023, + VMREAD_BITMAP = 0x00002026, + VMREAD_BITMAP_HIGH = 0x00002027, + VMWRITE_BITMAP = 0x00002028, + VMWRITE_BITMAP_HIGH = 0x00002029, + XSS_EXIT_BITMAP = 0x0000202C, + XSS_EXIT_BITMAP_HIGH = 0x0000202D, + ENCLS_EXITING_BITMAP = 0x0000202E, + ENCLS_EXITING_BITMAP_HIGH = 0x0000202F, + TSC_MULTIPLIER = 0x00002032, + TSC_MULTIPLIER_HIGH = 0x00002033, + GUEST_PHYSICAL_ADDRESS = 0x00002400, + GUEST_PHYSICAL_ADDRESS_HIGH = 0x00002401, + VMCS_LINK_POINTER = 0x00002800, + VMCS_LINK_POINTER_HIGH = 0x00002801, + GUEST_IA32_DEBUGCTL = 0x00002802, + GUEST_IA32_DEBUGCTL_HIGH = 0x00002803, + GUEST_IA32_PAT = 0x00002804, + GUEST_IA32_PAT_HIGH = 0x00002805, + GUEST_IA32_EFER = 0x00002806, + GUEST_IA32_EFER_HIGH = 0x00002807, + GUEST_IA32_PERF_GLOBAL_CTRL = 0x00002808, + GUEST_IA32_PERF_GLOBAL_CTRL_HIGH= 0x00002809, + GUEST_PDPTR0 = 0x0000280a, + GUEST_PDPTR0_HIGH = 0x0000280b, + GUEST_PDPTR1 = 0x0000280c, + GUEST_PDPTR1_HIGH = 0x0000280d, + GUEST_PDPTR2 = 0x0000280e, + GUEST_PDPTR2_HIGH = 0x0000280f, + GUEST_PDPTR3 = 0x00002810, + GUEST_PDPTR3_HIGH = 0x00002811, + GUEST_BNDCFGS = 0x00002812, + GUEST_BNDCFGS_HIGH = 0x00002813, + HOST_IA32_PAT = 0x00002c00, + HOST_IA32_PAT_HIGH = 0x00002c01, + HOST_IA32_EFER = 0x00002c02, + HOST_IA32_EFER_HIGH = 0x00002c03, + HOST_IA32_PERF_GLOBAL_CTRL = 0x00002c04, + HOST_IA32_PERF_GLOBAL_CTRL_HIGH = 0x00002c05, + PIN_BASED_VM_EXEC_CONTROL = 0x00004000, + CPU_BASED_VM_EXEC_CONTROL = 0x00004002, + EXCEPTION_BITMAP = 0x00004004, + PAGE_FAULT_ERROR_CODE_MASK = 0x00004006, + PAGE_FAULT_ERROR_CODE_MATCH = 0x00004008, + CR3_TARGET_COUNT = 0x0000400a, + VM_EXIT_CONTROLS = 0x0000400c, + VM_EXIT_MSR_STORE_COUNT = 0x0000400e, + VM_EXIT_MSR_LOAD_COUNT = 0x00004010, + VM_ENTRY_CONTROLS = 0x00004012, + VM_ENTRY_MSR_LOAD_COUNT = 0x00004014, + VM_ENTRY_INTR_INFO_FIELD = 0x00004016, + VM_ENTRY_EXCEPTION_ERROR_CODE = 0x00004018, + VM_ENTRY_INSTRUCTION_LEN = 0x0000401a, + TPR_THRESHOLD = 0x0000401c, + SECONDARY_VM_EXEC_CONTROL = 0x0000401e, + PLE_GAP = 0x00004020, + PLE_WINDOW = 0x00004022, + VM_INSTRUCTION_ERROR = 0x00004400, + VM_EXIT_REASON = 0x00004402, + VM_EXIT_INTR_INFO = 0x00004404, + VM_EXIT_INTR_ERROR_CODE = 0x00004406, + IDT_VECTORING_INFO_FIELD = 0x00004408, + IDT_VECTORING_ERROR_CODE = 0x0000440a, + VM_EXIT_INSTRUCTION_LEN = 0x0000440c, + VMX_INSTRUCTION_INFO = 0x0000440e, + GUEST_ES_LIMIT = 0x00004800, + GUEST_CS_LIMIT = 0x00004802, + GUEST_SS_LIMIT = 0x00004804, + GUEST_DS_LIMIT = 0x00004806, + GUEST_FS_LIMIT = 0x00004808, + GUEST_GS_LIMIT = 0x0000480a, + GUEST_LDTR_LIMIT = 0x0000480c, + GUEST_TR_LIMIT = 0x0000480e, + GUEST_GDTR_LIMIT = 0x00004810, + GUEST_IDTR_LIMIT = 0x00004812, + GUEST_ES_AR_BYTES = 0x00004814, + GUEST_CS_AR_BYTES = 0x00004816, + GUEST_SS_AR_BYTES = 0x00004818, + GUEST_DS_AR_BYTES = 0x0000481a, + GUEST_FS_AR_BYTES = 0x0000481c, + GUEST_GS_AR_BYTES = 0x0000481e, + GUEST_LDTR_AR_BYTES = 0x00004820, + GUEST_TR_AR_BYTES = 0x00004822, + GUEST_INTERRUPTIBILITY_INFO = 0x00004824, + GUEST_ACTIVITY_STATE = 0X00004826, + GUEST_SYSENTER_CS = 0x0000482A, + VMX_PREEMPTION_TIMER_VALUE = 0x0000482E, + HOST_IA32_SYSENTER_CS = 0x00004c00, + CR0_GUEST_HOST_MASK = 0x00006000, + CR4_GUEST_HOST_MASK = 0x00006002, + CR0_READ_SHADOW = 0x00006004, + CR4_READ_SHADOW = 0x00006006, + CR3_TARGET_VALUE0 = 0x00006008, + CR3_TARGET_VALUE1 = 0x0000600a, + CR3_TARGET_VALUE2 = 0x0000600c, + CR3_TARGET_VALUE3 = 0x0000600e, + EXIT_QUALIFICATION = 0x00006400, + GUEST_LINEAR_ADDRESS = 0x0000640a, + GUEST_CR0 = 0x00006800, + GUEST_CR3 = 0x00006802, + GUEST_CR4 = 0x00006804, + GUEST_ES_BASE = 0x00006806, + GUEST_CS_BASE = 0x00006808, + GUEST_SS_BASE = 0x0000680a, + GUEST_DS_BASE = 0x0000680c, + GUEST_FS_BASE = 0x0000680e, + GUEST_GS_BASE = 0x00006810, + GUEST_LDTR_BASE = 0x00006812, + GUEST_TR_BASE = 0x00006814, + GUEST_GDTR_BASE = 0x00006816, + GUEST_IDTR_BASE = 0x00006818, + GUEST_DR7 = 0x0000681a, + GUEST_RSP = 0x0000681c, + GUEST_RIP = 0x0000681e, + GUEST_RFLAGS = 0x00006820, + GUEST_PENDING_DBG_EXCEPTIONS = 0x00006822, + GUEST_SYSENTER_ESP = 0x00006824, + GUEST_SYSENTER_EIP = 0x00006826, + HOST_CR0 = 0x00006c00, + HOST_CR3 = 0x00006c02, + HOST_CR4 = 0x00006c04, + HOST_FS_BASE = 0x00006c06, + HOST_GS_BASE = 0x00006c08, + HOST_TR_BASE = 0x00006c0a, + HOST_GDTR_BASE = 0x00006c0c, + HOST_IDTR_BASE = 0x00006c0e, + HOST_IA32_SYSENTER_ESP = 0x00006c10, + HOST_IA32_SYSENTER_EIP = 0x00006c12, + HOST_RSP = 0x00006c14, + HOST_RIP = 0x00006c16, +}; + +struct vmx_msr_entry { + uint32_t index; + uint32_t reserved; + uint64_t value; +} __attribute__ ((aligned(16))); + +#include "evmcs.h" + +static inline int vmxon(uint64_t phys) +{ + uint8_t ret; + + __asm__ __volatile__ ("vmxon %[pa]; setna %[ret]" + : [ret]"=rm"(ret) + : [pa]"m"(phys) + : "cc", "memory"); + + return ret; +} + +static inline void vmxoff(void) +{ + __asm__ __volatile__("vmxoff"); +} + +static inline int vmclear(uint64_t vmcs_pa) +{ + uint8_t ret; + + __asm__ __volatile__ ("vmclear %[pa]; setna %[ret]" + : [ret]"=rm"(ret) + : [pa]"m"(vmcs_pa) + : "cc", "memory"); + + return ret; +} + +static inline int vmptrld(uint64_t vmcs_pa) +{ + uint8_t ret; + + if (enable_evmcs) + return -1; + + __asm__ __volatile__ ("vmptrld %[pa]; setna %[ret]" + : [ret]"=rm"(ret) + : [pa]"m"(vmcs_pa) + : "cc", "memory"); + + return ret; +} + +static inline int vmptrst(uint64_t *value) +{ + uint64_t tmp; + uint8_t ret; + + if (enable_evmcs) + return evmcs_vmptrst(value); + + __asm__ __volatile__("vmptrst %[value]; setna %[ret]" + : [value]"=m"(tmp), [ret]"=rm"(ret) + : : "cc", "memory"); + + *value = tmp; + return ret; +} + +/* + * A wrapper around vmptrst that ignores errors and returns zero if the + * vmptrst instruction fails. + */ +static inline uint64_t vmptrstz(void) +{ + uint64_t value = 0; + vmptrst(&value); + return value; +} + +/* + * No guest state (e.g. GPRs) is established by this vmlaunch. + */ +static inline int vmlaunch(void) +{ + int ret; + + if (enable_evmcs) + return evmcs_vmlaunch(); + + __asm__ __volatile__("push %%rbp;" + "push %%rcx;" + "push %%rdx;" + "push %%rsi;" + "push %%rdi;" + "push $0;" + "vmwrite %%rsp, %[host_rsp];" + "lea 1f(%%rip), %%rax;" + "vmwrite %%rax, %[host_rip];" + "vmlaunch;" + "incq (%%rsp);" + "1: pop %%rax;" + "pop %%rdi;" + "pop %%rsi;" + "pop %%rdx;" + "pop %%rcx;" + "pop %%rbp;" + : [ret]"=&a"(ret) + : [host_rsp]"r"((uint64_t)HOST_RSP), + [host_rip]"r"((uint64_t)HOST_RIP) + : "memory", "cc", "rbx", "r8", "r9", "r10", + "r11", "r12", "r13", "r14", "r15"); + return ret; +} + +/* + * No guest state (e.g. GPRs) is established by this vmresume. + */ +static inline int vmresume(void) +{ + int ret; + + if (enable_evmcs) + return evmcs_vmresume(); + + __asm__ __volatile__("push %%rbp;" + "push %%rcx;" + "push %%rdx;" + "push %%rsi;" + "push %%rdi;" + "push $0;" + "vmwrite %%rsp, %[host_rsp];" + "lea 1f(%%rip), %%rax;" + "vmwrite %%rax, %[host_rip];" + "vmresume;" + "incq (%%rsp);" + "1: pop %%rax;" + "pop %%rdi;" + "pop %%rsi;" + "pop %%rdx;" + "pop %%rcx;" + "pop %%rbp;" + : [ret]"=&a"(ret) + : [host_rsp]"r"((uint64_t)HOST_RSP), + [host_rip]"r"((uint64_t)HOST_RIP) + : "memory", "cc", "rbx", "r8", "r9", "r10", + "r11", "r12", "r13", "r14", "r15"); + return ret; +} + +static inline void vmcall(void) +{ + /* + * Stuff RAX and RCX with "safe" values to make sure L0 doesn't handle + * it as a valid hypercall (e.g. Hyper-V L2 TLB flush) as the intended + * use of this function is to exit to L1 from L2. Clobber all other + * GPRs as L1 doesn't correctly preserve them during vmexits. + */ + __asm__ __volatile__("push %%rbp; vmcall; pop %%rbp" + : : "a"(0xdeadbeef), "c"(0xbeefdead) + : "rbx", "rdx", "rsi", "rdi", "r8", "r9", + "r10", "r11", "r12", "r13", "r14", "r15"); +} + +static inline int vmread(uint64_t encoding, uint64_t *value) +{ + uint64_t tmp; + uint8_t ret; + + if (enable_evmcs) + return evmcs_vmread(encoding, value); + + __asm__ __volatile__("vmread %[encoding], %[value]; setna %[ret]" + : [value]"=rm"(tmp), [ret]"=rm"(ret) + : [encoding]"r"(encoding) + : "cc", "memory"); + + *value = tmp; + return ret; +} + +/* + * A wrapper around vmread that ignores errors and returns zero if the + * vmread instruction fails. + */ +static inline uint64_t vmreadz(uint64_t encoding) +{ + uint64_t value = 0; + vmread(encoding, &value); + return value; +} + +static inline int vmwrite(uint64_t encoding, uint64_t value) +{ + uint8_t ret; + + if (enable_evmcs) + return evmcs_vmwrite(encoding, value); + + __asm__ __volatile__ ("vmwrite %[value], %[encoding]; setna %[ret]" + : [ret]"=rm"(ret) + : [value]"rm"(value), [encoding]"r"(encoding) + : "cc", "memory"); + + return ret; +} + +static inline uint32_t vmcs_revision(void) +{ + return rdmsr(MSR_IA32_VMX_BASIC); +} + +struct vmx_pages { + void *vmxon_hva; + uint64_t vmxon_gpa; + void *vmxon; + + void *vmcs_hva; + uint64_t vmcs_gpa; + void *vmcs; + + void *msr_hva; + uint64_t msr_gpa; + void *msr; + + void *shadow_vmcs_hva; + uint64_t shadow_vmcs_gpa; + void *shadow_vmcs; + + void *vmread_hva; + uint64_t vmread_gpa; + void *vmread; + + void *vmwrite_hva; + uint64_t vmwrite_gpa; + void *vmwrite; + + void *eptp_hva; + uint64_t eptp_gpa; + void *eptp; + + void *apic_access_hva; + uint64_t apic_access_gpa; + void *apic_access; +}; + +union vmx_basic { + u64 val; + struct { + u32 revision; + u32 size:13, + reserved1:3, + width:1, + dual:1, + type:4, + insouts:1, + ctrl:1, + vm_entry_exception_ctrl:1, + reserved2:7; + }; +}; + +union vmx_ctrl_msr { + u64 val; + struct { + u32 set, clr; + }; +}; + +struct vmx_pages *vcpu_alloc_vmx(struct kvm_vm *vm, vm_vaddr_t *p_vmx_gva); +bool prepare_for_vmx_operation(struct vmx_pages *vmx); +void prepare_vmcs(struct vmx_pages *vmx, void *guest_rip, void *guest_rsp); +bool load_vmcs(struct vmx_pages *vmx); + +bool ept_1g_pages_supported(void); + +void nested_pg_map(struct vmx_pages *vmx, struct kvm_vm *vm, + uint64_t nested_paddr, uint64_t paddr); +void nested_map(struct vmx_pages *vmx, struct kvm_vm *vm, + uint64_t nested_paddr, uint64_t paddr, uint64_t size); +void nested_map_memslot(struct vmx_pages *vmx, struct kvm_vm *vm, + uint32_t memslot); +void nested_identity_map_1g(struct vmx_pages *vmx, struct kvm_vm *vm, + uint64_t addr, uint64_t size); +bool kvm_cpu_has_ept(void); +void prepare_eptp(struct vmx_pages *vmx, struct kvm_vm *vm, + uint32_t eptp_memslot); +void prepare_virtualize_apic_accesses(struct vmx_pages *vmx, struct kvm_vm *vm); + +#endif /* SELFTEST_KVM_VMX_H */ |