Suggested-by: Jim Mattson <jmattson@xxxxxxxxxx>
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@xxxxxxxxxx>
Reviewed-by: Mark Kanda <mark.kanda@xxxxxxxxxx>
---
arch/x86/kvm/vmx.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 533a327..2f8e0b9 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -11706,15 +11706,12 @@ static int nested_vmx_check_msr_switch_controls(struct kvm_vcpu *vcpu,
static int nested_vmx_check_pml_controls(struct kvm_vcpu *vcpu,
struct vmcs12 *vmcs12)
{
- u64 address = vmcs12->pml_address;
- int maxphyaddr = cpuid_maxphyaddr(vcpu);
+ if (!nested_cpu_has_pml(vmcs12))
+ return 0;
- if (nested_cpu_has2(vmcs12, SECONDARY_EXEC_ENABLE_PML)) {
- if (!nested_cpu_has_ept(vmcs12) ||
- !IS_ALIGNED(address, 4096) ||
- address >> maxphyaddr)
- return -EINVAL;
- }
+ if (!nested_cpu_has_ept(vmcs12) ||
+ !page_address_valid(vcpu, vmcs12->pml_address))
+ return -EINVAL;
return 0;
}
--
2.9.5
