diff options
| author | Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> | 2015-07-10 12:57:02 +0300 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2015-09-11 08:16:16 -0700 |
| commit | 1c3c8af1fb40a481c07749e0448644d9b7700415 (patch) | |
| tree | 019e1bdaf24566d3160c1701d2a2d4d6e08ccad7 | |
| parent | b8611499b940b1b4db67aa985e3a844437bcbf00 (diff) | |
| download | qemu-1c3c8af1fb40a481c07749e0448644d9b7700415.tar.gz | |
cpu-exec: introduce loop exit with restore function
This patch introduces loop exit function, which also
restores guest CPU state according to the value of host
program counter.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20150710095702.13280.97477.stgit@PASHA-ISP>
Signed-off-by: Richard Henderson <rth@twiddle.net>
| -rw-r--r-- | cpu-exec.c | 9 | ||||
| -rw-r--r-- | include/exec/exec-all.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/cpu-exec.c b/cpu-exec.c index 713540fc8f..6b6942de69 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -134,6 +134,15 @@ void cpu_loop_exit(CPUState *cpu) siglongjmp(cpu->jmp_env, 1); } +void cpu_loop_exit_restore(CPUState *cpu, uintptr_t pc) +{ + if (pc) { + cpu_restore_state(cpu, pc); + } + cpu->current_tb = NULL; + siglongjmp(cpu->jmp_env, 1); +} + /* exit the current TB from a signal handler. The host registers are restored in a state compatible with the CPU emulator */ diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 83b925172f..b5fadf7ee3 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -90,6 +90,7 @@ TranslationBlock *tb_gen_code(CPUState *cpu, int cflags); void cpu_exec_init(CPUState *cpu, Error **errp); void QEMU_NORETURN cpu_loop_exit(CPUState *cpu); +void QEMU_NORETURN cpu_loop_exit_restore(CPUState *cpu, uintptr_t pc); #if !defined(CONFIG_USER_ONLY) bool qemu_in_vcpu_thread(void); |