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| author | Richard Henderson <rth@twiddle.net> | 2014-09-13 09:45:14 -0700 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-09-25 18:54:21 +0100 |
| commit | 374e0cd4db321d51ed5fa24498a974085e3f1b6d (patch) | |
| tree | 369b58030ab7078ced9fcfa56d64e1430e015c80 /target-i386 | |
| parent | 1039e1290feb03b331af55d939554bd03ffd3906 (diff) | |
| download | qemu-374e0cd4db321d51ed5fa24498a974085e3f1b6d.tar.gz qemu-374e0cd4db321d51ed5fa24498a974085e3f1b6d.tar.bz2 qemu-374e0cd4db321d51ed5fa24498a974085e3f1b6d.zip | |
target-i386: Use cpu_exec_enter/exit qom hooks
Note that the code that was within the "exit" ifdef block
was identical to the cpu_compute_eflags inline, so make that
simplification at the same time.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1410626734-3804-4-git-send-email-rth@twiddle.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/cpu-qom.h | 3 | ||||
| -rw-r--r-- | target-i386/cpu.c | 2 | ||||
| -rw-r--r-- | target-i386/helper.c | 21 |
3 files changed, 26 insertions, 0 deletions
diff --git a/target-i386/cpu-qom.h b/target-i386/cpu-qom.h index 77554663a7..b242cb057e 100644 --- a/target-i386/cpu-qom.h +++ b/target-i386/cpu-qom.h @@ -151,4 +151,7 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); int x86_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg); int x86_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); +void x86_cpu_exec_enter(CPUState *cpu); +void x86_cpu_exec_exit(CPUState *cpu); + #endif diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 90d0a05eb1..223e43e04d 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -2942,6 +2942,8 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data) #ifndef CONFIG_USER_ONLY cc->debug_excp_handler = breakpoint_handler; #endif + cc->cpu_exec_enter = x86_cpu_exec_enter; + cc->cpu_exec_exit = x86_cpu_exec_exit; } static const TypeInfo x86_cpu_type_info = { diff --git a/target-i386/helper.c b/target-i386/helper.c index 28fefe0a1f..345bda188d 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -1262,3 +1262,24 @@ void do_cpu_sipi(X86CPU *cpu) { } #endif + +/* Frob eflags into and out of the CPU temporary format. */ + +void x86_cpu_exec_enter(CPUState *cs) +{ + X86CPU *cpu = X86_CPU(cs); + CPUX86State *env = &cpu->env; + + CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); + env->df = 1 - (2 * ((env->eflags >> 10) & 1)); + CC_OP = CC_OP_EFLAGS; + env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); +} + +void x86_cpu_exec_exit(CPUState *cs) +{ + X86CPU *cpu = X86_CPU(cs); + CPUX86State *env = &cpu->env; + + env->eflags = cpu_compute_eflags(env); +} |