From: Liang Li Date: Thu, 18 Aug 2016 07:49:19 +0000 (+0800) Subject: vmx: refine validity check for guest linear address X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=72e0ae58a0fbded49d6fa80dcca5aaea9eb5a73f;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 Signed-off-by: Paolo Bonzini --- 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),