Commit e9fd761a authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

KVM: nSVM: remove HF_VINTR_MASK 



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: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 36e2e983

arch/x86/include/asm/kvm_host.h

+0 −1
Original line number Diff line number Diff line
@@ -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 */

arch/x86/kvm/svm/nested.c

+1 −5
Original line number Diff line number Diff line
@@ -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;

arch/x86/kvm/svm/svm.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

arch/x86/kvm/svm/svm.h

+3 −1
Original line number Diff line number Diff line
@@ -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)

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