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KVM: nSVM: remove HF_VINTR_MASK

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Now that the int_ctl field is stored in svm->nested.ctl.int_ctl, we can
use it instead of vcpu->arch.hflags to check whether L2 is running
in V_INTR_MASKING mode.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2020-05-13 13:28:23 -04:00
parent 36e2e98363
commit e9fd761a46
4 changed files with 5 additions and 8 deletions
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1
arch/x86/include/asm/kvm_host.h
View File

@ -1596,7 +1596,6 @@ enum {
#define HF_GIF_MASK (1 << 0)
#define HF_HIF_MASK (1 << 1)
#define HF_VINTR_MASK (1 << 2)
#define HF_NMI_MASK (1 << 3)
#define HF_IRET_MASK (1 << 4)
#define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */

6
arch/x86/kvm/svm/nested.c
View File

@ -118,7 +118,7 @@ void recalc_intercepts(struct vcpu_svm *svm)
c->intercept_exceptions = h->intercept_exceptions;
c->intercept = h->intercept;
if (svm->vcpu.arch.hflags & HF_VINTR_MASK) {
if (g->int_ctl & V_INTR_MASKING_MASK) {
/* We only want the cr8 intercept bits of L1 */
c->intercept_cr &= ~(1U << INTERCEPT_CR8_READ);
c->intercept_cr &= ~(1U << INTERCEPT_CR8_WRITE);
@ -338,10 +338,6 @@ static void nested_prepare_vmcb_control(struct vcpu_svm *svm)
kvm_mmu_reset_context(&svm->vcpu);
svm_flush_tlb(&svm->vcpu);
if (svm->nested.ctl.int_ctl & V_INTR_MASKING_MASK)
svm->vcpu.arch.hflags |= HF_VINTR_MASK;
else
svm->vcpu.arch.hflags &= ~HF_VINTR_MASK;
svm->vmcb->control.tsc_offset = svm->vcpu.arch.tsc_offset =
svm->vcpu.arch.l1_tsc_offset + svm->nested.ctl.tsc_offset;

2
arch/x86/kvm/svm/svm.c
View File

@ -3104,7 +3104,7 @@ bool svm_interrupt_blocked(struct kvm_vcpu *vcpu)
if (is_guest_mode(vcpu)) {
/* As long as interrupts are being delivered... */
if ((svm->vcpu.arch.hflags & HF_VINTR_MASK)
if ((svm->nested.ctl.int_ctl & V_INTR_MASKING_MASK)
? !(svm->vcpu.arch.hflags & HF_HIF_MASK)
: !(kvm_get_rflags(vcpu) & X86_EFLAGS_IF))
return true;

4
arch/x86/kvm/svm/svm.h
View File

@ -367,7 +367,9 @@ void svm_set_gif(struct vcpu_svm *svm, bool value);
static inline bool svm_nested_virtualize_tpr(struct kvm_vcpu *vcpu)
{
return is_guest_mode(vcpu) && (vcpu->arch.hflags & HF_VINTR_MASK);
struct vcpu_svm *svm = to_svm(vcpu);
return is_guest_mode(vcpu) && (svm->nested.ctl.int_ctl & V_INTR_MASKING_MASK);
}
static inline bool nested_exit_on_smi(struct vcpu_svm *svm)