augment info migrate with page status
This patch augments info migrate output with status about:
* ram bytes remaining
* ram bytes transferred
* ram bytes total
This should be enough for management tools to realize
whether or not there is progress in migration. We can
add more information later on, if the need arrives
[v2: fixes bytes_transferred type]
Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/vl.c b/vl.c
index a24692c..5dfeb46 100644
--- a/vl.c
+++ b/vl.c
@@ -3234,6 +3234,7 @@
}
static ram_addr_t ram_save_threshold = 10;
+static uint64_t bytes_transferred = 0;
static ram_addr_t ram_save_remaining(void)
{
@@ -3248,6 +3249,21 @@
return count;
}
+uint64_t ram_bytes_remaining(void)
+{
+ return ram_save_remaining() * TARGET_PAGE_SIZE;
+}
+
+uint64_t ram_bytes_transferred(void)
+{
+ return bytes_transferred;
+}
+
+uint64_t ram_bytes_total(void)
+{
+ return last_ram_offset;
+}
+
static int ram_save_live(QEMUFile *f, int stage, void *opaque)
{
ram_addr_t addr;
@@ -3269,6 +3285,7 @@
int ret;
ret = ram_save_block(f);
+ bytes_transferred += ret * TARGET_PAGE_SIZE;
if (ret == 0) /* no more blocks */
break;
}
@@ -3278,7 +3295,9 @@
if (stage == 3) {
/* flush all remaining blocks regardless of rate limiting */
- while (ram_save_block(f) != 0);
+ while (ram_save_block(f) != 0) {
+ bytes_transferred += TARGET_PAGE_SIZE;
+ }
cpu_physical_memory_set_dirty_tracking(0);
}
