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Message-ID: <BLU436-SMTP38EADC8B6CF4CB3F41B0A580380@phx.gbl> Date: Wed, 21 Oct 2015 14:28:25 +0800 From: Wanpeng Li <wanpeng.li@...mail.com> To: Paolo Bonzini <pbonzini@...hat.com> CC: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, Wanpeng Li <wanpeng.li@...mail.com> Subject: [PATCH] KVM: x86: fix eflags state following processor init/reset Reference SDM 3.4.3: Following initialization of the processor (either by asserting the RESET pin or the INIT pin), the state of the EFLAGS register is 00000002H. However, the eflags fixed bit is not set and other bits are also not cleared during the init/reset in kvm. This patch fix it by set eflags register to 00000002H following initialization of the processor. Signed-off-by: Wanpeng Li <wanpeng.li@...mail.com> --- arch/x86/kvm/vmx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index b680c2e..326f6ea 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4935,6 +4935,7 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event) vmx_set_efer(vcpu, 0); vmx_fpu_activate(vcpu); update_exception_bitmap(vcpu); + vmx_set_rflags(vcpu, X86_EFLAGS_FIXED); vpid_sync_context(vmx->vpid); } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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