From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46615) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WlJdS-0006LR-Uz for qemu-devel@nongnu.org; Fri, 16 May 2014 11:01:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WlJdK-0003H3-3A for qemu-devel@nongnu.org; Fri, 16 May 2014 11:01:22 -0400 Received: from greensocs.com ([178.33.234.66]:60981) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WlJdJ-0003Gd-Sv for qemu-devel@nongnu.org; Fri, 16 May 2014 11:01:14 -0400 From: fred.konrad@greensocs.com Date: Fri, 16 May 2014 17:00:42 +0200 Message-Id: <1400252448-13347-8-git-send-email-fred.konrad@greensocs.com> In-Reply-To: <1400252448-13347-1-git-send-email-fred.konrad@greensocs.com> References: <1400252448-13347-1-git-send-email-fred.konrad@greensocs.com> Subject: [Qemu-devel] [RFC PATCH v3 07/13] timer: add cpu_icount_to_ns function. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: pbonzini@redhat.com, mark.burton@greensocs.com, vilanova@ac.upc.edu, fred.konrad@greensocs.com From: KONRAD Frederic 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 --- cpus.c | 9 +++++++-- include/qemu/timer.h | 1 + 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/cpus.c b/cpus.c index 5df3106..a5f9171 100644 --- a/cpus.c +++ b/cpus.c @@ -146,9 +146,9 @@ static int64_t cpu_get_icount_locked(int with_bias) } if (with_bias) { - return timers_state.qemu_icount_bias + (icount << icount_time_shift); + return timers_state.qemu_icount_bias + cpu_icount_to_ns(icount); } else { - return icount << icount_time_shift; + return cpu_icount_to_ns(icount); } } @@ -165,6 +165,11 @@ int64_t cpu_get_icount(int with_bias) 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 6204cab..0ae7f28 100644 --- a/include/qemu/timer.h +++ b/include/qemu/timer.h @@ -752,6 +752,7 @@ static inline int64_t get_clock(void) /* icount */ int64_t cpu_get_icount(int with_bias); int64_t cpu_get_clock(void); +int64_t cpu_icount_to_ns(int64_t icount); /*******************************************/ /* host CPU ticks (if available) */ -- 1.9.0