diff mbox

[RFC,V2,2/5] icount: Make icount_time_shift available everywhere

Message ID 1402652437-13194-3-git-send-email-sebastian.tanase@openwide.fr
State New
Headers show

Commit Message

Sebastian Tanase June 13, 2014, 9:40 a.m. UTC 
icount_time_shift is used for calculting the delay
qemu has to sleep in order to synchronise the
host and guest clocks. Therefore, we need it in
cpu-exec.c.

Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Tested-by: Camille Bégué <camille.begue@openwide.fr>
---
 cpus.c                | 8 ++++++--
 include/qemu-common.h | 1 +
 2 files changed, 7 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/cpus.c b/cpus.c
index b78a418..bbe8743 100644
--- a/cpus.c
+++ b/cpus.c
@@ -103,8 +103,12 @@  static bool all_cpu_threads_idle(void)
 /* Compensate for varying guest execution speed.  */
 static int64_t qemu_icount_bias;
 static int64_t vm_clock_warp_start;
-/* Conversion factor from emulated instructions to virtual clock ticks.  */
-static int icount_time_shift;
+/* Conversion factor from emulated instructions to virtual clock ticks.
+ * icount_time_shift is defined as extern in include/qemu-common.h because
+ * it is used (in cpu-exec.c) for calculating the delay for sleeping
+ * qemu in order to align the host and virtual clock.
+ */
+int icount_time_shift;
 /* Arbitrarily pick 1MIPS as the minimum allowable speed.  */
 #define MAX_ICOUNT_SHIFT 10
 
diff --git a/include/qemu-common.h b/include/qemu-common.h
index 288b460..60478fa 100644
--- a/include/qemu-common.h
+++ b/include/qemu-common.h
@@ -108,6 +108,7 @@  static inline char *realpath(const char *path, char *resolved_path)
 /* icount */
 void configure_icount(QemuOpts *opts, Error **errp);
 extern int use_icount;
+extern int icount_time_shift;
 extern int icount_align_option;
 
 #include "qemu/osdep.h"