xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

KVM: SVM: Implement check_nested_events for NMI

Browse Source 
Migrate nested guest NMI intercept processing
to new check_nested_events.

Signed-off-by: Cathy Avery <cavery@redhat.com>
Message-Id: <20200414201107.22952-2-cavery@redhat.com>
[Reorder clauses as NMIs have higher priority than IRQs; inject
 immediate vmexit as is now done for IRQ vmexits. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Cathy Avery
2020-04-14 16:11:06 -04:00
committed by Paolo Bonzini
parent 6e085cbfb0
commit 9c3d370a8e
3 changed files with 23 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/x86/kvm/svm/svm.h
View File

@@ -373,21 +373,6 @@ void disable_nmi_singlestep(struct vcpu_svm *svm);
#define NESTED_EXIT_DONE 1 /* Exit caused nested vmexit */
#define NESTED_EXIT_CONTINUE 2 /* Further checks needed */
/* This function returns true if it is save to enable the nmi window */
static inline bool nested_svm_nmi(struct vcpu_svm *svm)
{
if (!is_guest_mode(&svm->vcpu))
return true;
if (!(svm->nested.intercept & (1ULL << INTERCEPT_NMI)))
return true;
svm->vmcb->control.exit_code = SVM_EXIT_NMI;
svm->nested.exit_required = true;
return false;
}
static inline bool svm_nested_virtualize_tpr(struct kvm_vcpu *vcpu)
{
return is_guest_mode(vcpu) && (vcpu->arch.hflags & HF_VINTR_MASK);