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Date: Mon, 8 Dec 2008 13:36:42 +0200 From: Avi Kivity <avi@...hat.com> To: kvm@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Amit Shah <amit.shah@...hat.com> Subject: [PATCH 31/45] KVM: SVM: Set the 'busy' flag of the TR selector From: Amit Shah <amit.shah@...hat.com> The busy flag of the TR selector is not set by the hardware. This breaks migration from amd hosts to intel hosts. Signed-off-by: Amit Shah <amit.shah@...hat.com> Signed-off-by: Avi Kivity <avi@...hat.com> --- arch/x86/kvm/svm.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 665008d..743aebd 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -781,6 +781,13 @@ static void svm_get_segment(struct kvm_vcpu *vcpu, if (seg == VCPU_SREG_CS) var->g = s->limit > 0xfffff; + /* + * Work around a bug where the busy flag in the tr selector + * isn't exposed + */ + if (seg == VCPU_SREG_TR) + var->type |= 0x2; + var->unusable = !var->present; } -- 1.6.0.3 -- 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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