From: Wanpeng Li <wanpengli@xxxxxxxxxxx>
Let's get the information whether or not guests disable interruptions.
Signed-off-by: Wanpeng Li <wanpengli@xxxxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/x86.c | 3 +++
2 files changed, 4 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 50f011a7445a..8e05cbfa9827 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -861,6 +861,7 @@ struct kvm_vcpu_arch {
bool preempt_count_enabled;
struct gfn_to_hva_cache preempt_count_cache;
} pv_pc;
+ bool irq_disabled;
/*
* Indicates the guest is trying to write a gfn that contains one or
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index af75e273cb32..425fd7f38fa9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4576,6 +4576,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
static_call(kvm_x86_vcpu_load)(vcpu, cpu);
+ vcpu->arch.irq_disabled = false;
/* Save host pkru register if supported */
vcpu->arch.host_pkru = read_pkru();
@@ -4668,6 +4669,7 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
static_call(kvm_x86_vcpu_put)(vcpu);
vcpu->arch.last_host_tsc = rdtsc();
+ vcpu->arch.irq_disabled = !static_call(kvm_x86_get_if_flag)(vcpu);
}
static int kvm_vcpu_ioctl_get_lapic(struct kvm_vcpu *vcpu,
@@ -11225,6 +11227,7 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
vcpu->arch.pending_external_vector = -1;
vcpu->arch.preempted_in_kernel = false;
vcpu->arch.pv_pc.preempt_count_enabled = false;
+ vcpu->arch.irq_disabled = false;
#if IS_ENABLED(CONFIG_HYPERV)
vcpu->arch.hv_root_tdp = INVALID_PAGE;
--
2.25.1
