From 75880a01124c6aa5d428bdc14163039a87618be1 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Wed, 20 Jun 2007 11:20:04 +0300 Subject: [PATCH] KVM: VMX: Reinitialize the real-mode tss when entering real mode Protected mode code may have corrupted the real-mode tss, so re-initialize it when switching to real mode. Signed-off-by: Avi Kivity --- drivers/kvm/vmx.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index b47ddccc7d7a..42a916379ce2 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -31,6 +31,8 @@ MODULE_AUTHOR("Qumranet"); MODULE_LICENSE("GPL"); +static int init_rmode_tss(struct kvm *kvm); + static DEFINE_PER_CPU(struct vmcs *, vmxarea); static DEFINE_PER_CPU(struct vmcs *, current_vmcs); @@ -951,6 +953,8 @@ static void enter_rmode(struct kvm_vcpu *vcpu) fix_rmode_seg(VCPU_SREG_DS, &vcpu->rmode.ds); fix_rmode_seg(VCPU_SREG_GS, &vcpu->rmode.gs); fix_rmode_seg(VCPU_SREG_FS, &vcpu->rmode.fs); + + init_rmode_tss(vcpu->kvm); } #ifdef CONFIG_X86_64