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| author |   Nathan Froyd <froydnj@codesourcery.com> | 2009-12-11 09:29:20 -0800 |
|---|---|---|
| committer |   Aurelien Jarno <aurelien@aurel32.net> | 2009-12-13 21:05:16 +0100 |
| commit | 869ca150e73125abdabbac96861713143bc3fb40 (patch) | |
| tree | 6f6a6a31c6f9ade7a220575bd397fc486b367c75 /target-mips | |
| parent | target-i386: Update CPUID feature set for TCG (diff) | |
| download | qemu-kvm-869ca150e73125abdabbac96861713143bc3fb40.tar.gz qemu-kvm-869ca150e73125abdabbac96861713143bc3fb40.tar.bz2 qemu-kvm-869ca150e73125abdabbac96861713143bc3fb40.zip | |
target-mips: fix user-mode emulation startup
Running programs with the MIPS user-mode emulator fails during dynamic
loading, as floating-point instructions are not enabled in in
env->hflags. Move the code for doing so from fpu_init to cpu_reset so
the MIPS_HFLAG_{FPU,F64} setting doesn't get clobbered by cpu_reset
setting env->hflags to MIPS_HFLAG_UM.
The same end can be achieved by swapping the ordering of fpu_init and
cpu_reset in cpu_mips_init, but it seemed better to consolidate the
CONFIG_USER_ONLY code into a single location.
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
(cherry picked from commit 91a759352623e4a3da969fa66626cc99241e9da2)
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/translate.c | 8 | ||||
| -rw-r--r-- | target-mips/translate_init.c | 8 |
2 files changed, 8 insertions, 8 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index 9d62b64b5..f756ab9db 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -8652,6 +8652,14 @@ void cpu_reset (CPUMIPSState *env) env->hflags = MIPS_HFLAG_UM; /* Enable access to the SYNCI_Step register. */ env->CP0_HWREna |= (1 << 1); + if (env->CP0_Config1 & (1 << CP0C1_FP)) { + env->hflags |= MIPS_HFLAG_FPU; + } +#ifdef TARGET_MIPS64 + if (env->active_fpu.fcr0 & (1 << FCR0_F64)) { + env->hflags |= MIPS_HFLAG_F64; + } +#endif #else if (env->hflags & MIPS_HFLAG_BMASK) { /* If the exception was raised from a delay slot, diff --git a/target-mips/translate_init.c b/target-mips/translate_init.c index c950eab1a..397890865 100644 --- a/target-mips/translate_init.c +++ b/target-mips/translate_init.c @@ -524,14 +524,6 @@ static void fpu_init (CPUMIPSState *env, const mips_def_t *def) env->fpus[i].fcr0 = def->CP1_fcr0; memcpy(&env->active_fpu, &env->fpus[0], sizeof(env->active_fpu)); -#if defined(CONFIG_USER_ONLY) - if (env->CP0_Config1 & (1 << CP0C1_FP)) - env->hflags |= MIPS_HFLAG_FPU; -#ifdef TARGET_MIPS64 - if (env->active_fpu.fcr0 & (1 << FCR0_F64)) - env->hflags |= MIPS_HFLAG_F64; -#endif -#endif } static void mvp_init (CPUMIPSState *env, const mips_def_t *def) |