diff options
| author |   Liang Li <liang.z.li@intel.com> | 2016-08-18 15:49:19 +0800 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2016-09-07 19:34:27 +0200 |
| commit | 72e0ae58a0fbded49d6fa80dcca5aaea9eb5a73f (patch) | |
| tree | d0c26736ef5e0eca73610c47ec784e927c0f54d9 /arch/x86/kvm/vmx.c | |
| parent | Merge branch 'x86/amd-avic' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu into HEAD (diff) | |
| download | linux-dev-72e0ae58a0fbded49d6fa80dcca5aaea9eb5a73f.tar.xz linux-dev-72e0ae58a0fbded49d6fa80dcca5aaea9eb5a73f.zip | |
vmx: refine validity check for guest linear address
The validity check for the guest line address is inefficient,
check the invalid value instead of enumerating the valid ones.
Signed-off-by: Liang Li <liang.z.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 5cede40e2552..8d2880466764 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6109,7 +6109,7 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu) exit_qualification = vmcs_readl(EXIT_QUALIFICATION); gla_validity = (exit_qualification >> 7) & 0x3; - if (gla_validity != 0x3 && gla_validity != 0x1 && gla_validity != 0) { + if (gla_validity == 0x2) { printk(KERN_ERR "EPT: Handling EPT violation failed!\n"); printk(KERN_ERR "EPT: GPA: 0x%lx, GVA: 0x%lx\n", (long unsigned int)vmcs_read64(GUEST_PHYSICAL_ADDRESS), |