Save the length of the instruction that triggered an EPT violation in
struct kvm_vcpu_arch. This will be used to populate Hyper-V VSM memory
intercept messages.
Signed-off-by: Nicolas Saenz Julienne <nsaenz@xxxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/vmx/vmx.c | 1 +
2 files changed, 3 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 1f5a85d461ce..1a854776d91e 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -967,6 +967,8 @@ struct kvm_vcpu_arch {
/* set at EPT violation at this point */
unsigned long exit_qualification;
+ u32 exit_instruction_len;
+
/* pv related host specific info */
struct {
bool pv_unhalted;
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 6e502ba93141..9c83ee3a293d 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -5773,6 +5773,7 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu)
PFERR_GUEST_FINAL_MASK : PFERR_GUEST_PAGE_MASK;
vcpu->arch.exit_qualification = exit_qualification;
+ vcpu->arch.exit_instruction_len = vmcs_read32(VM_EXIT_INSTRUCTION_LEN);
/*
* Check that the GPA doesn't exceed physical memory limits, as that is
--
2.40.1
