2.6.36-stable review patch. If anyone has any objections, please let us know.
------------------ From: Sheng Yang <[email protected]> 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 <[email protected]> Signed-off-by: Avi Kivity <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- arch/x86/kvm/x86.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5112,6 +5112,8 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct 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; _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
