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-rw-r--r--arch/x86/kvm/svm/avic.c7
-rw-r--r--arch/x86/kvm/svm/svm.c7
2 files changed, 9 insertions, 5 deletions
diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
index 55caeb09ce7c..ba6e9485e824 100644
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -180,12 +180,12 @@ static void avic_activate_vmcb(struct vcpu_svm *svm)
struct kvm_vcpu *vcpu = &svm->vcpu;
vmcb->control.int_ctl &= ~(AVIC_ENABLE_MASK | X2APIC_MODE_MASK);
-
vmcb->control.avic_physical_id &= ~AVIC_PHYSICAL_MAX_INDEX_MASK;
vmcb->control.avic_physical_id |= avic_get_max_physical_id(vcpu);
-
vmcb->control.int_ctl |= AVIC_ENABLE_MASK;
+ svm_clr_intercept(svm, INTERCEPT_CR8_WRITE);
+
/*
* Note: KVM supports hybrid-AVIC mode, where KVM emulates x2APIC MSR
* accesses, while interrupt injection to a running vCPU can be
@@ -217,6 +217,9 @@ static void avic_deactivate_vmcb(struct vcpu_svm *svm)
vmcb->control.int_ctl &= ~(AVIC_ENABLE_MASK | X2APIC_MODE_MASK);
vmcb->control.avic_physical_id &= ~AVIC_PHYSICAL_MAX_INDEX_MASK;
+ if (!sev_es_guest(svm->vcpu.kvm))
+ svm_set_intercept(svm, INTERCEPT_CR8_WRITE);
+
/*
* If running nested and the guest uses its own MSR bitmap, there
* is no need to update L0's msr bitmap
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 79335c12586c..939b94418554 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1032,8 +1032,7 @@ static void init_vmcb(struct kvm_vcpu *vcpu, bool init_event)
svm_set_intercept(svm, INTERCEPT_CR0_WRITE);
svm_set_intercept(svm, INTERCEPT_CR3_WRITE);
svm_set_intercept(svm, INTERCEPT_CR4_WRITE);
- if (!kvm_vcpu_apicv_active(vcpu))
- svm_set_intercept(svm, INTERCEPT_CR8_WRITE);
+ svm_set_intercept(svm, INTERCEPT_CR8_WRITE);
set_dr_intercepts(svm);
@@ -2598,9 +2597,11 @@ static int dr_interception(struct kvm_vcpu *vcpu)
static int cr8_write_interception(struct kvm_vcpu *vcpu)
{
+ u8 cr8_prev = kvm_get_cr8(vcpu);
int r;
- u8 cr8_prev = kvm_get_cr8(vcpu);
+ WARN_ON_ONCE(kvm_vcpu_apicv_active(vcpu));
+
/* instruction emulation calls kvm_set_cr8() */
r = cr_interception(vcpu);
if (lapic_in_kernel(vcpu))