diff options
| author | Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> | 2014-09-17 12:05:19 +0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-09-18 17:06:12 +0200 |
| commit | 5bde14078d181439a1170094d7774372242ab739 (patch) | |
| tree | 99535a4249042c14262d08f32569c424a7fd7621 /target-i386/cpu.h | |
| parent | 7dbb4c49bfa60b92251a97ddda2c3cdace6b73e4 (diff) | |
target-i386: update fp status fix
This patch introduces cpu_set_fpuc() function, which changes fpuc field
of the CPU state and calls update_fp_status() function.
These calls update status of softfloat library and prevent bugs caused
by non-coherent rounding settings of the FPU and softfloat.
v2 changes:
* Added missed calls and intoduced setter function (as suggested by TeLeMan)
Reviewed-by: TeLeMan <geleman@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Diffstat (limited to 'target-i386/cpu.h')
| -rw-r--r-- | target-i386/cpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 71b505f56c..2968749578 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -1251,6 +1251,7 @@ void QEMU_NORETURN raise_interrupt(CPUX86State *nenv, int intno, int is_int, /* cc_helper.c */ extern const uint8_t parity_table[256]; uint32_t cpu_cc_compute_all(CPUX86State *env1, int op); +void update_fp_status(CPUX86State *env); static inline uint32_t cpu_compute_eflags(CPUX86State *env) { @@ -1286,6 +1287,7 @@ static inline void cpu_load_efer(CPUX86State *env, uint64_t val) /* fpu_helper.c */ void cpu_set_mxcsr(CPUX86State *env, uint32_t val); +void cpu_set_fpuc(CPUX86State *env, uint16_t val); /* svm_helper.c */ void cpu_svm_check_intercept_param(CPUX86State *env1, uint32_t type, |