KVM: VMX: Add instruction rdtscp support for guest
Before enabling, execution of "rdtscp" in guest would result in #UD.
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 41777e6..7f4e225 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2914,6 +2914,11 @@
return true;
}
+static bool svm_rdtscp_supported(void)
+{
+ return false;
+}
+
static struct kvm_x86_ops svm_x86_ops = {
.cpu_has_kvm_support = has_svm,
.disabled_by_bios = is_disabled,
@@ -2982,6 +2987,8 @@
.gb_page_enable = svm_gb_page_enable,
.cpuid_update = svm_cpuid_update,
+
+ .rdtscp_supported = svm_rdtscp_supported,
};
static int __init svm_init(void)
