[RFC PATCH v3 52/59] KVM: VMX: Move .get_interrupt_shadow() implementation to common VMX code

isaku.yamahata
2021-11-25T00:23:45Z

From: Sean Christopherson <sean.j.christopherson@intel.com>

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
---
arch/x86/kvm/vmx/common.h | 14 ++++++++++++++
arch/x86/kvm/vmx/vmx.c | 10 +---------
2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/arch/x86/kvm/vmx/common.h b/arch/x86/kvm/vmx/common.h
index e45d2d222168..684cd3add46b 100644
--- a/arch/x86/kvm/vmx/common.h
+++ b/arch/x86/kvm/vmx/common.h
@@ -120,6 +120,20 @@ static inline int __vmx_handle_ept_violation(struct kvm_vcpu *vcpu, gpa_t gpa,
return kvm_mmu_page_fault(vcpu, gpa, error_code, NULL, 0);
}

+static inline u32 __vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu)
+{
+ u32 interruptibility;
+ int ret = 0;
+
+ interruptibility = vmread32(vcpu, GUEST_INTERRUPTIBILITY_INFO);
+ if (interruptibility & GUEST_INTR_STATE_STI)
+ ret |= KVM_X86_SHADOW_INT_STI;
+ if (interruptibility & GUEST_INTR_STATE_MOV_SS)
+ ret |= KVM_X86_SHADOW_INT_MOV_SS;
+
+ return ret;
+}
+
static inline u32 vmx_encode_ar_bytes(struct kvm_segment *var)
{
u32 ar;
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index a644b9627f9d..6f38e0d2e1b6 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1365,15 +1365,7 @@ void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)

u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu)
{
- u32 interruptibility = vmcs_read32(GUEST_INTERRUPTIBILITY_INFO);
- int ret = 0;
-
- if (interruptibility & GUEST_INTR_STATE_STI)
- ret |= KVM_X86_SHADOW_INT_STI;
- if (interruptibility & GUEST_INTR_STATE_MOV_SS)
- ret |= KVM_X86_SHADOW_INT_MOV_SS;
-
- return ret;
+ return __vmx_get_interrupt_shadow(vcpu);
}

void vmx_set_interrupt_shadow(struct kvm_vcpu *vcpu, int mask)
--
2.25.1