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-rw-r--r--arch/powerpc/include/asm/kvm_book3s_asm.h160
1 files changed, 160 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
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--- /dev/null
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -0,0 +1,160 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *
+ * Copyright SUSE Linux Products GmbH 2009
+ *
+ * Authors: Alexander Graf <agraf@suse.de>
+ */
+
+#ifndef __ASM_KVM_BOOK3S_ASM_H__
+#define __ASM_KVM_BOOK3S_ASM_H__
+
+/* XICS ICP register offsets */
+#define XICS_XIRR 4
+#define XICS_MFRR 0xc
+#define XICS_IPI 2 /* interrupt source # for IPIs */
+
+/* Maximum number of threads per physical core */
+#define MAX_SMT_THREADS 8
+
+/* Maximum number of subcores per physical core */
+#define MAX_SUBCORES 4
+
+#ifdef __ASSEMBLY__
+
+#ifdef CONFIG_KVM_BOOK3S_HANDLER
+
+#include <asm/kvm_asm.h>
+
+.macro DO_KVM intno
+ .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
+ (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
+ (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
+ (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
+ (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
+ (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
+ (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
+ (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
+ (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
+ (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
+ (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
+ (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
+ (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
+ (\intno == BOOK3S_INTERRUPT_TRACE) || \
+ (\intno == BOOK3S_INTERRUPT_PERFMON) || \
+ (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
+ (\intno == BOOK3S_INTERRUPT_VSX)
+
+ b kvmppc_trampoline_\intno
+kvmppc_resume_\intno:
+
+ .endif
+.endm
+
+#else
+
+.macro DO_KVM intno
+.endm
+
+#endif /* CONFIG_KVM_BOOK3S_HANDLER */
+
+#else /*__ASSEMBLY__ */
+
+struct kvmppc_vcore;
+
+/* Struct used for coordinating micro-threading (split-core) mode changes */
+struct kvm_split_mode {
+ unsigned long rpr;
+ unsigned long pmmar;
+ unsigned long ldbar;
+ u8 subcore_size;
+ u8 do_nap;
+ u8 napped[MAX_SMT_THREADS];
+ struct kvmppc_vcore *vc[MAX_SUBCORES];
+};
+
+/*
+ * This struct goes in the PACA on 64-bit processors. It is used
+ * to store host state that needs to be saved when we enter a guest
+ * and restored when we exit, but isn't specific to any particular
+ * guest or vcpu. It also has some scratch fields used by the guest
+ * exit code.
+ */
+struct kvmppc_host_state {
+ ulong host_r1;
+ ulong host_r2;
+ ulong host_msr;
+ ulong vmhandler;
+ ulong scratch0;
+ ulong scratch1;
+ ulong scratch2;
+ u8 in_guest;
+ u8 restore_hid5;
+ u8 napping;
+
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ u8 hwthread_req;
+ u8 hwthread_state;
+ u8 host_ipi;
+ u8 ptid; /* thread number within subcore when split */
+ u8 fake_suspend;
+ struct kvm_vcpu *kvm_vcpu;
+ struct kvmppc_vcore *kvm_vcore;
+ void __iomem *xics_phys;
+ void __iomem *xive_tima_phys;
+ void __iomem *xive_tima_virt;
+ u32 saved_xirr;
+ u64 dabr;
+ u64 host_mmcr[10]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER, MMCR3, SIER2/3 */
+ u32 host_pmc[8];
+ u64 host_purr;
+ u64 host_spurr;
+ u64 host_dscr;
+ u64 dec_expires;
+ struct kvm_split_mode *kvm_split_mode;
+#endif
+#ifdef CONFIG_PPC_BOOK3S_64
+ u64 cfar;
+ u64 ppr;
+ u64 host_fscr;
+#endif
+};
+
+struct kvmppc_book3s_shadow_vcpu {
+ bool in_use;
+ ulong gpr[14];
+ u32 cr;
+ ulong xer;
+ ulong ctr;
+ ulong lr;
+ ulong pc;
+
+ ulong shadow_srr1;
+ ulong fault_dar;
+ u32 fault_dsisr;
+ u32 last_inst;
+
+#ifdef CONFIG_PPC_BOOK3S_32
+ u32 sr[16]; /* Guest SRs */
+
+ struct kvmppc_host_state hstate;
+#endif
+
+#ifdef CONFIG_PPC_BOOK3S_64
+ u8 slb_max; /* highest used guest slb entry */
+ struct {
+ u64 esid;
+ u64 vsid;
+ } slb[64]; /* guest SLB */
+ u64 shadow_fscr;
+#endif
+};
+
+#endif /*__ASSEMBLY__ */
+
+/* Values for kvm_state */
+#define KVM_HWTHREAD_IN_KERNEL 0
+#define KVM_HWTHREAD_IN_IDLE 1
+#define KVM_HWTHREAD_IN_KVM 2
+
+#endif /* __ASM_KVM_BOOK3S_ASM_H__ */