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| author | Avi Kivity <avi@qumranet.com> | 2007-06-20 10:20:04 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-07-16 11:05:48 +0200 |
| commit | 75880a01124c6aa5d428bdc14163039a87618be1 (patch) | |
| tree | 3ab4e4fd920380aeec0cfc378eaa434f24f8bbde /drivers/kvm | |
| parent | KVM: Avoid useless memory write when possible (diff) | |
| download | linux-75880a01124c6aa5d428bdc14163039a87618be1.tar.xz linux-75880a01124c6aa5d428bdc14163039a87618be1.zip | |
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')
| -rw-r--r-- | drivers/kvm/vmx.c | 4 |
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 @@ 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 |