On 18/08/2016 09:49, Liang Li wrote:
> The validity check for the guest line address is inefficient,
> check the invalid value instead is more efficient.
>
> Signed-off-by: Liang Li <liang.z.li@xxxxxxxxx>
> ---
> arch/x86/kvm/vmx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
> index a45d858..c32d5e8 100644
> --- a/arch/x86/kvm/vmx.c
> +++ b/arch/x86/kvm/vmx.c
> @@ -6103,7 +6103,7 @@ 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),
>
Queued for 4.9, thanks.
Paolo
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
