diff options
Diffstat (limited to 'target-i386/machine.c')
-rw-r--r-- | target-i386/machine.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/target-i386/machine.c b/target-i386/machine.c index 168cab681b..bdff447786 100644 --- a/target-i386/machine.c +++ b/target-i386/machine.c @@ -312,6 +312,14 @@ static int cpu_post_load(void *opaque, int version_id) env->segs[R_SS].flags &= ~(env->segs[R_SS].flags & DESC_DPL_MASK); } + /* Older versions of QEMU incorrectly used CS.DPL as the CPL when + * running under KVM. This is wrong for conforming code segments. + * Luckily, in our implementation the CPL field of hflags is redundant + * and we can get the right value from the SS descriptor privilege level. + */ + env->hflags &= ~HF_CPL_MASK; + env->hflags |= (env->segs[R_SS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK; + /* XXX: restore FPU round state */ env->fpstt = (env->fpus_vmstate >> 11) & 7; env->fpus = env->fpus_vmstate & ~0x3800; |