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| 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 | |
| parent | 4174879b2e5a2620d9f5c1935de0c9204b34cd1c (diff) | |
| download | linux-72e0ae58a0fbded49d6fa80dcca5aaea9eb5a73f.tar.bz2 | |
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>
| -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), |