[PATCH 1/6] kvm: pass error code to handler
in [Kernel]
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From: Lai Jiangshan on 15 Jul 2010 22:20 handle_ept_violation() does not pass error code to the handler tdp_page_fault(). It means tdp_page_fault() handles the page fault with ignoring the error code, It will not handle the page fault completely correctly, and may causes endless page fault. Signed-off-by: Lai Jiangshan <laijs(a)cn.fujitsu.com> --- diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 856e427..b40731e 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3521,7 +3521,8 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu) gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS); trace_kvm_page_fault(gpa, exit_qualification); - return kvm_mmu_page_fault(vcpu, gpa & PAGE_MASK, 0); + return kvm_mmu_page_fault(vcpu, gpa & PAGE_MASK, + exit_qualification & 0x2); } static u64 ept_rsvd_mask(u64 spte, int level) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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