diff mbox

[7/7] timer: add cpu_icount_to_ns function.

Message ID 1406849835-4288-8-git-send-email-fred.konrad@greensocs.com
State New
Headers show

Commit Message

fred.konrad@greensocs.com July 31, 2014, 11:37 p.m. UTC 
From: KONRAD Frederic <fred.konrad@greensocs.com>

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 <fred.konrad@greensocs.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
---
 cpus.c               | 9 +++++++--
 include/qemu/timer.h | 1 +
 2 files changed, 8 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/cpus.c b/cpus.c
index f63872b..580c754 100644
--- a/cpus.c
+++ b/cpus.c
@@ -154,9 +154,9 @@  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);
     }
 }
 
@@ -173,6 +173,11 @@  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 1ad0f87..16bafde 100644
--- a/include/qemu/timer.h
+++ b/include/qemu/timer.h
@@ -753,6 +753,7 @@  static inline int64_t get_clock(void)
 int64_t cpu_get_icount(int with_bias);
 int64_t cpu_get_clock(void);
 int64_t cpu_get_clock_offset(void);
+int64_t cpu_icount_to_ns(int64_t icount);
 
 /*******************************************/
 /* host CPU ticks (if available) */