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authorPaolo Bonzini <pbonzini@redhat.com>2013-09-13 15:55:57 +0200
committerGleb Natapov <gleb@redhat.com>2013-10-02 18:58:23 +0300
commitc74f41bbcc83d12787ac42f2c74fc2be54e9f222 (patch)
tree39707633519f220b50df9934c888a6abd95eb10d /target-i386/cpu.c
parenta684f3cf9b9b9c3cb82be87aafc463de8974610c (diff)
x86: fix migration from pre-version 12
On KVM, the KVM_SET_XSAVE would be executed with a 0 xstate_bv, and not restore anything. Since FP and SSE data are always valid, set them in xstate_bv at reset time. In fact, that value is the same that KVM_GET_XSAVE returns on pre-XSAVE hosts. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'target-i386/cpu.c')
-rw-r--r--target-i386/cpu.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index b6828022bc..ea99b2692d 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2405,6 +2405,7 @@ static void x86_cpu_reset(CPUState *s)
env->fpuc = 0x37f;
env->mxcsr = 0x1f80;
+ env->xstate_bv = XSTATE_FP | XSTATE_SSE;
env->pat = 0x0007040600070406ULL;
env->msr_ia32_misc_enable = MSR_IA32_MISC_ENABLE_DEFAULT;