diff options
| author | Juan Quintela <quintela@redhat.com> | 2009-09-29 22:48:52 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-10-05 09:32:40 -0500 |
| commit | cdc0c58fa9d86559f6811426eee16b0464dfcd93 (patch) | |
| tree | 18a3e42ac28bb8718c74af682d6a2a587c48bf65 /target-i386 | |
| parent | 67b8f419575b9e4521f0fa59b7a0faee401502ca (diff) | |
x86: add fptag_vmstate to the state
It is needed to store fptags
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/cpu.h | 1 | ||||
| -rw-r--r-- | target-i386/machine.c | 18 |
2 files changed, 10 insertions, 9 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 685b828297..8d858d14c0 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -595,6 +595,7 @@ typedef struct CPUX86State { unsigned int fpstt; /* top of stack index */ uint16_t fpus; uint16_t fpus_vmstate; + uint16_t fptag_vmstate; uint16_t fpuc; uint8_t fptags[8]; /* 0 = valid, 1 = empty */ union { diff --git a/target-i386/machine.c b/target-i386/machine.c index 4584de90f6..635807b04c 100644 --- a/target-i386/machine.c +++ b/target-i386/machine.c @@ -26,7 +26,7 @@ static void cpu_get_seg(QEMUFile *f, SegmentCache *dt) void cpu_save(QEMUFile *f, void *opaque) { CPUState *env = opaque; - uint16_t fptag, fpregs_format; + uint16_t fpregs_format; int32_t pending_irq; int i, bit; @@ -40,14 +40,14 @@ void cpu_save(QEMUFile *f, void *opaque) /* FPU */ env->fpus_vmstate = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; - fptag = 0; + env->fptag_vmstate = 0; for(i = 0; i < 8; i++) { - fptag |= ((!env->fptags[i]) << i); + env->fptag_vmstate |= ((!env->fptags[i]) << i); } qemu_put_be16s(f, &env->fpuc); qemu_put_be16s(f, &env->fpus_vmstate); - qemu_put_be16s(f, &fptag); + qemu_put_be16s(f, &env->fptag_vmstate); #ifdef USE_X86LDOUBLE fpregs_format = 0; @@ -197,7 +197,7 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id) { CPUState *env = opaque; int i, guess_mmx; - uint16_t fptag, fpregs_format; + uint16_t fpregs_format; int32_t pending_irq; cpu_synchronize_state(env); @@ -211,13 +211,13 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id) qemu_get_be16s(f, &env->fpuc); qemu_get_be16s(f, &env->fpus_vmstate); - qemu_get_be16s(f, &fptag); + qemu_get_be16s(f, &env->fptag_vmstate); qemu_get_be16s(f, &fpregs_format); /* NOTE: we cannot always restore the FPU state if the image come from a host with a different 'USE_X86LDOUBLE' define. We guess if we are in an MMX state to restore correctly in that case. */ - guess_mmx = ((fptag == 0xff) && (env->fpus_vmstate & 0x3800) == 0); + guess_mmx = ((env->fptag_vmstate == 0xff) && (env->fpus_vmstate & 0x3800) == 0); for(i = 0; i < 8; i++) { uint64_t mant; uint16_t exp; @@ -262,9 +262,9 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id) /* XXX: restore FPU round state */ env->fpstt = (env->fpus_vmstate >> 11) & 7; env->fpus = env->fpus_vmstate & ~0x3800; - fptag ^= 0xff; + env->fptag_vmstate ^= 0xff; for(i = 0; i < 8; i++) { - env->fptags[i] = (fptag >> i) & 1; + env->fptags[i] = (env->fptag_vmstate >> i) & 1; } for(i = 0; i < 6; i++) |