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stop dirty tracking just at the end of migration (Glauber Costa) 

If there is still work to do, it is not safe to assume we
can end the dirty tracking. Specifically, kvm can update the dirty
tracking log inside ram_save_block(), leaving pages still out of sync
if we go with the current code.

Based on a patch by Yaniv Kamay

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6999 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-04-05 19:30:55 +00:00
parent 4dabe24883
commit 8215e91463
1 changed files with 1 additions and 1 deletions
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2
vl.c
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@ -3252,10 +3252,10 @@ static int ram_save_live(QEMUFile *f, int stage, void *opaque)
/* try transferring iterative blocks of memory */
if (stage == 3) {
cpu_physical_memory_set_dirty_tracking(0);
/* flush all remaining blocks regardless of rate limiting */
while (ram_save_block(f) != 0);
cpu_physical_memory_set_dirty_tracking(0);
}
qemu_put_be64(f, RAM_SAVE_FLAG_EOS);