From: Nicușor Cîțu <nicu.c...@icloud.com>
This function is needed for the KVMI_VCPU_EVENT_DESCRIPTOR event.
Signed-off-by: Nicușor Cîțu <nicu.c...@icloud.com>
Signed-off-by: Adalbert Lazăr <ala...@bitdefender.com>
---
arch/x86/kvm/svm/svm.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index ce45fe0d35bc..e5cd8813cca6 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -2525,6 +2525,11 @@ static int emulate_on_interception(struct kvm_vcpu *vcpu)
return kvm_emulate_instruction(vcpu, 0);
}
+static int descriptor_access_interception(struct kvm_vcpu *vcpu)
+{
+ return kvm_emulate_instruction(vcpu, 0);
+}
+
static int rsm_interception(struct kvm_vcpu *vcpu)
{
return kvm_emulate_instruction_from_buffer(vcpu, rsm_ins_bytes, 2);
@@ -3231,6 +3236,14 @@ static int (*const svm_exit_handlers[])(struct kvm_vcpu
*vcpu) = {
[SVM_EXIT_AVIC_INCOMPLETE_IPI] =
avic_incomplete_ipi_interception,
[SVM_EXIT_AVIC_UNACCELERATED_ACCESS] =
avic_unaccelerated_access_interception,
[SVM_EXIT_VMGEXIT] = sev_handle_vmgexit,
+ [SVM_EXIT_IDTR_READ] =
descriptor_access_interception,
+ [SVM_EXIT_GDTR_READ] =
descriptor_access_interception,
+ [SVM_EXIT_LDTR_READ] =
descriptor_access_interception,
+ [SVM_EXIT_TR_READ] =
descriptor_access_interception,
+ [SVM_EXIT_IDTR_WRITE] =
descriptor_access_interception,
+ [SVM_EXIT_GDTR_WRITE] =
descriptor_access_interception,
+ [SVM_EXIT_LDTR_WRITE] =
descriptor_access_interception,
+ [SVM_EXIT_TR_WRITE] =
descriptor_access_interception,
};
static void dump_vmcb(struct kvm_vcpu *vcpu)
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