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 <fred.konrad@greensocs.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/cpus.c b/cpus.c
index a6b6557..62636a6 100644
--- a/cpus.c
+++ b/cpus.c
@@ -146,7 +146,7 @@
}
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 @@
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)
