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authorAvi Kivity <avi@qumranet.com>2007-06-20 04:20:04 -0400
committerAvi Kivity <avi@qumranet.com>2007-07-16 05:05:48 -0400
commit75880a01124c6aa5d428bdc14163039a87618be1 (patch)
tree3ab4e4fd920380aeec0cfc378eaa434f24f8bbde /drivers/kvm/vmx.c
parenta3c870bdce4d34332ebdba7eb9969592c4c6b243 (diff)
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 <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/vmx.c')
-rw-r--r--drivers/kvm/vmx.c4
1 files changed, 4 insertions, 0 deletions
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 @@
31MODULE_AUTHOR("Qumranet"); 31MODULE_AUTHOR("Qumranet");
32MODULE_LICENSE("GPL"); 32MODULE_LICENSE("GPL");
33 33
34static int init_rmode_tss(struct kvm *kvm);
35
34static DEFINE_PER_CPU(struct vmcs *, vmxarea); 36static DEFINE_PER_CPU(struct vmcs *, vmxarea);
35static DEFINE_PER_CPU(struct vmcs *, current_vmcs); 37static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
36 38
@@ -951,6 +953,8 @@ static void enter_rmode(struct kvm_vcpu *vcpu)
951 fix_rmode_seg(VCPU_SREG_DS, &vcpu->rmode.ds); 953 fix_rmode_seg(VCPU_SREG_DS, &vcpu->rmode.ds);
952 fix_rmode_seg(VCPU_SREG_GS, &vcpu->rmode.gs); 954 fix_rmode_seg(VCPU_SREG_GS, &vcpu->rmode.gs);
953 fix_rmode_seg(VCPU_SREG_FS, &vcpu->rmode.fs); 955 fix_rmode_seg(VCPU_SREG_FS, &vcpu->rmode.fs);
956
957 init_rmode_tss(vcpu->kvm);
954} 958}
955 959
956#ifdef CONFIG_X86_64 960#ifdef CONFIG_X86_64