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| author | Sheng Yang <sheng@linux.intel.com> | 2010-12-08 10:49:43 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-12-08 17:28:31 +0200 |
| commit | 3ea3aa8cf67d3bbe00a19b6a4013d19efa7d0f41 (patch) | |
| tree | c4184c1706a85fa14db668b80ee8114d408fd0df /arch | |
| parent | 6313e3c21743cc88bb5bd8aa72948ee1e83937b6 (diff) | |
| download | linux-3ea3aa8cf67d3bbe00a19b6a4013d19efa7d0f41.tar.gz linux-3ea3aa8cf67d3bbe00a19b6a4013d19efa7d0f41.tar.bz2 linux-3ea3aa8cf67d3bbe00a19b6a4013d19efa7d0f41.zip | |
KVM: Fix OSXSAVE after migration
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>
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 cdac9e592aa5..eb5c83479d89 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5522,6 +5522,8 @@ 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.walk_mmu, vcpu->arch.cr3); mmu_reset_needed = 1; |