diff options
Diffstat (limited to 'cpus.c')
| -rw-r--r-- | cpus.c | 38 |
1 files changed, 25 insertions, 13 deletions
@@ -42,6 +42,7 @@ #include "qemu/seqlock.h" #include "qapi-event.h" #include "hw/nmi.h" +#include "sysemu/replay.h" #ifndef _WIN32 #include "qemu/compatfd.h" @@ -1411,6 +1412,28 @@ int vm_stop_force_state(RunState state) } } +static int64_t tcg_get_icount_limit(void) +{ + int64_t deadline; + + if (replay_mode != REPLAY_MODE_PLAY) { + deadline = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL); + + /* Maintain prior (possibly buggy) behaviour where if no deadline + * was set (as there is no QEMU_CLOCK_VIRTUAL timer) or it is more than + * INT32_MAX nanoseconds ahead, we still use INT32_MAX + * nanoseconds. + */ + if ((deadline < 0) || (deadline > INT32_MAX)) { + deadline = INT32_MAX; + } + + return qemu_icount_round(deadline); + } else { + return replay_get_instructions(); + } +} + static int tcg_cpu_exec(CPUState *cpu) { int ret; @@ -1423,24 +1446,12 @@ static int tcg_cpu_exec(CPUState *cpu) #endif if (use_icount) { int64_t count; - int64_t deadline; int decr; timers_state.qemu_icount -= (cpu->icount_decr.u16.low + cpu->icount_extra); cpu->icount_decr.u16.low = 0; cpu->icount_extra = 0; - deadline = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL); - - /* Maintain prior (possibly buggy) behaviour where if no deadline - * was set (as there is no QEMU_CLOCK_VIRTUAL timer) or it is more than - * INT32_MAX nanoseconds ahead, we still use INT32_MAX - * nanoseconds. - */ - if ((deadline < 0) || (deadline > INT32_MAX)) { - deadline = INT32_MAX; - } - - count = qemu_icount_round(deadline); + count = tcg_get_icount_limit(); timers_state.qemu_icount += count; decr = (count > 0xffff) ? 0xffff : count; count -= decr; @@ -1458,6 +1469,7 @@ static int tcg_cpu_exec(CPUState *cpu) + cpu->icount_extra); cpu->icount_decr.u32 = 0; cpu->icount_extra = 0; + replay_account_executed_instructions(); } return ret; } |