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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
commit01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch)
treeb406c5242a088c4f59c6e4b719b783f43aca6ae9 /arch/x86/kvm/svm/nested.c
parentAdding upstream version 6.7.12. (diff)
downloadlinux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz
linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip
Adding upstream version 6.8.9.upstream/6.8.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/kvm/svm/nested.c')
-rw-r--r--arch/x86/kvm/svm/nested.c34
1 files changed, 18 insertions, 16 deletions
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 60891b9ce2..dee62362a3 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -187,7 +187,6 @@ void recalc_intercepts(struct vcpu_svm *svm)
*/
static bool nested_svm_vmrun_msrpm(struct vcpu_svm *svm)
{
- struct hv_vmcb_enlightenments *hve = &svm->nested.ctl.hv_enlightenments;
int i;
/*
@@ -198,11 +197,16 @@ static bool nested_svm_vmrun_msrpm(struct vcpu_svm *svm)
* - Nested hypervisor (L1) is using Hyper-V emulation interface and
* tells KVM (L0) there were no changes in MSR bitmap for L2.
*/
- if (!svm->nested.force_msr_bitmap_recalc &&
- kvm_hv_hypercall_enabled(&svm->vcpu) &&
- hve->hv_enlightenments_control.msr_bitmap &&
- (svm->nested.ctl.clean & BIT(HV_VMCB_NESTED_ENLIGHTENMENTS)))
- goto set_msrpm_base_pa;
+#ifdef CONFIG_KVM_HYPERV
+ if (!svm->nested.force_msr_bitmap_recalc) {
+ struct hv_vmcb_enlightenments *hve = &svm->nested.ctl.hv_enlightenments;
+
+ if (kvm_hv_hypercall_enabled(&svm->vcpu) &&
+ hve->hv_enlightenments_control.msr_bitmap &&
+ (svm->nested.ctl.clean & BIT(HV_VMCB_NESTED_ENLIGHTENMENTS)))
+ goto set_msrpm_base_pa;
+ }
+#endif
if (!(vmcb12_is_intercept(&svm->nested.ctl, INTERCEPT_MSR_PROT)))
return true;
@@ -230,7 +234,9 @@ static bool nested_svm_vmrun_msrpm(struct vcpu_svm *svm)
svm->nested.force_msr_bitmap_recalc = false;
+#ifdef CONFIG_KVM_HYPERV
set_msrpm_base_pa:
+#endif
svm->vmcb->control.msrpm_base_pa = __sme_set(__pa(svm->nested.msrpm));
return true;
@@ -296,7 +302,7 @@ static bool __nested_vmcb_check_save(struct kvm_vcpu *vcpu,
if ((save->efer & EFER_LME) && (save->cr0 & X86_CR0_PG)) {
if (CC(!(save->cr4 & X86_CR4_PAE)) ||
CC(!(save->cr0 & X86_CR0_PE)) ||
- CC(kvm_vcpu_is_illegal_gpa(vcpu, save->cr3)))
+ CC(!kvm_vcpu_is_legal_cr3(vcpu, save->cr3)))
return false;
}
@@ -363,12 +369,14 @@ void __nested_copy_vmcb_control_to_cache(struct kvm_vcpu *vcpu,
to->msrpm_base_pa &= ~0x0fffULL;
to->iopm_base_pa &= ~0x0fffULL;
+#ifdef CONFIG_KVM_HYPERV
/* Hyper-V extensions (Enlightened VMCB) */
if (kvm_hv_hypercall_enabled(vcpu)) {
to->clean = from->clean;
memcpy(&to->hv_enlightenments, &from->hv_enlightenments,
sizeof(to->hv_enlightenments));
}
+#endif
}
void nested_copy_vmcb_control_to_cache(struct vcpu_svm *svm,
@@ -472,14 +480,8 @@ static void nested_save_pending_event_to_vmcb12(struct vcpu_svm *svm,
static void nested_svm_transition_tlb_flush(struct kvm_vcpu *vcpu)
{
- /*
- * KVM_REQ_HV_TLB_FLUSH flushes entries from either L1's VP_ID or
- * L2's VP_ID upon request from the guest. Make sure we check for
- * pending entries in the right FIFO upon L1/L2 transition as these
- * requests are put by other vCPUs asynchronously.
- */
- if (to_hv_vcpu(vcpu) && npt_enabled)
- kvm_make_request(KVM_REQ_HV_TLB_FLUSH, vcpu);
+ /* Handle pending Hyper-V TLB flush requests */
+ kvm_hv_nested_transtion_tlb_flush(vcpu, npt_enabled);
/*
* TODO: optimize unconditional TLB flush/MMU sync. A partial list of
@@ -505,7 +507,7 @@ static void nested_svm_transition_tlb_flush(struct kvm_vcpu *vcpu)
static int nested_svm_load_cr3(struct kvm_vcpu *vcpu, unsigned long cr3,
bool nested_npt, bool reload_pdptrs)
{
- if (CC(kvm_vcpu_is_illegal_gpa(vcpu, cr3)))
+ if (CC(!kvm_vcpu_is_legal_cr3(vcpu, cr3)))
return -EINVAL;
if (reload_pdptrs && !nested_npt && is_pae_paging(vcpu) &&