From 3f03131390a8c91a0cac530f7ae79b04b42ab928 Mon Sep 17 00:00:00 2001 From: KONRAD Frederic Date: Fri, 1 Aug 2014 01:37:15 +0200 Subject: [PATCH] timer: add cpu_icount_to_ns function. This adds cpu_icount_to_ns function which is needed for reverse execution. It returns the time for a specific instruction. Signed-off-by: KONRAD Frederic Reviewed-by: Paolo Bonzini Signed-off-by: Paolo Bonzini --- cpus.c | 7 ++++++- include/qemu/timer.h | 1 + 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/cpus.c b/cpus.c index a6b6557146..62636a65a8 100644 --- a/cpus.c +++ b/cpus.c @@ -146,7 +146,7 @@ static int64_t cpu_get_icount_locked(void) } icount -= (cpu->icount_decr.u16.low + cpu->icount_extra); } - return timers_state.qemu_icount_bias + (icount << icount_time_shift); + return timers_state.qemu_icount_bias + cpu_icount_to_ns(icount); } int64_t cpu_get_icount(void) @@ -162,6 +162,11 @@ int64_t cpu_get_icount(void) return icount; } +int64_t cpu_icount_to_ns(int64_t icount) +{ + return icount << icount_time_shift; +} + /* return the host CPU cycle counter and handle stop/restart */ /* Caller must hold the BQL */ int64_t cpu_get_ticks(void) diff --git a/include/qemu/timer.h b/include/qemu/timer.h index 7f9a074c2a..e12c7149e1 100644 --- a/include/qemu/timer.h +++ b/include/qemu/timer.h @@ -745,6 +745,7 @@ static inline int64_t get_clock(void) /* icount */ int64_t cpu_get_icount(void); int64_t cpu_get_clock(void); +int64_t cpu_icount_to_ns(int64_t icount); /*******************************************/ /* host CPU ticks (if available) */ -- 2.30.2