diff options
| author | Sheng Yang <sheng@linux.intel.com> | 2010-12-08 10:49:43 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-01-07 13:58:47 -0800 |
| commit | b6346defbc8afe642fb76736b7f59bb1fc6cc0a4 (patch) | |
| tree | e7edf23f88c535f91b7e1874292880b81aa9f2bc /arch | |
| parent | 918a0ca6d40a07fb7d11ac7b9e1033677e0b318b (diff) | |
KVM: Fix OSXSAVE after migration
commit 3ea3aa8cf67d3bbe00a19b6a4013d19efa7d0f41 upstream.
CPUID's OSXSAVE is a mirror of CR4.OSXSAVE bit. We need to update the CPUID
after migration.
KVM-Stable-Tag.
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index fd9911b9e38..a5746de6f40 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5112,6 +5112,8 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, mmu_reset_needed |= kvm_read_cr4(vcpu) != sregs->cr4; kvm_x86_ops->set_cr4(vcpu, sregs->cr4); + if (sregs->cr4 & X86_CR4_OSXSAVE) + update_cpuid(vcpu); if (!is_long_mode(vcpu) && is_pae(vcpu)) { load_pdptrs(vcpu, vcpu->arch.cr3); mmu_reset_needed = 1; |