KVM: VMX: Add cpu consistency check

All the physical CPUs on the board should support the same VMX feature
set.  Add check_processor_compatibility to kvm_arch_ops for the consistency
check.

Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 5277084f3a35..827bc2774e73 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1798,11 +1798,17 @@ svm_patch_hypercall(struct kvm_vcpu *vcpu, unsigned char *hypercall)
         hypercall[3] = 0xc3;
 }
 
+static void svm_check_processor_compat(void *rtn)
+{
+        *(int *)rtn = 0;
+}
+
 static struct kvm_arch_ops svm_arch_ops = {
         .cpu_has_kvm_support = has_svm,
         .disabled_by_bios = is_disabled,
         .hardware_setup = svm_hardware_setup,
         .hardware_unsetup = svm_hardware_unsetup,
+        .check_processor_compatibility = svm_check_processor_compat,
         .hardware_enable = svm_hardware_enable,
         .hardware_disable = svm_hardware_disable,