diff options
| author | Eddie Dong <eddie.dong@intel.com> | 2007-12-02 13:18:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-12-14 09:50:57 -0800 |
| commit | 0fe8f9b280a5f7a65aebc51ab6b5200a8bf05e13 (patch) | |
| tree | 194db8b8d5e9986ebfe9737793d41a9308e6ff63 /drivers | |
| parent | 9ec0e2f614c0b29e87ff0b451aa1201498309bd7 (diff) | |
KVM: VMX: Reset mmu context when entering real mode
patch 8668a3c468ed55d19514117a5a959d91d3d03823 in mainline.
Resetting an SMP guest will force AP enter real mode (RESET) with
paging enabled in protected mode. While current enter_rmode() can
only handle mode switch from nonpaging mode to real mode which leads
to SMP reboot failure.
Fix by reloading the mmu context on entering real mode.
Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/kvm/mmu.c | 1 | ||||
| -rw-r--r-- | drivers/kvm/vmx.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index 23965aa5ee7..56ab369beaf 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -1066,6 +1066,7 @@ int kvm_mmu_reset_context(struct kvm_vcpu *vcpu) destroy_kvm_mmu(vcpu); return init_kvm_mmu(vcpu); } +EXPORT_SYMBOL_GPL(kvm_mmu_reset_context); int kvm_mmu_load(struct kvm_vcpu *vcpu) { diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index c158a2d33ae..916da2983c6 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -957,6 +957,7 @@ static void enter_rmode(struct kvm_vcpu *vcpu) fix_rmode_seg(VCPU_SREG_GS, &vcpu->rmode.gs); fix_rmode_seg(VCPU_SREG_FS, &vcpu->rmode.fs); + kvm_mmu_reset_context(vcpu); init_rmode_tss(vcpu->kvm); } |