haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

migration/next for 20151125

Browse source 
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJWVcWfAAoJEPSH7xhYctcjl5sQAJ8i6AlwAuYFw0ilMAvVHyIQ
 m981FKNcHdB0UoS7tn//eR5io+zXDphBRChbvxa7A/U6/liMMb6Hf71M0nitb3ix
 AaXz2hPXOQE7xHAuefkTiinM9K4/aSbGbAStqv+lwMWnBYvadJj2LQg1sTTdupQT
 oaKk59c4NEW0JZeVoxNwnngHPw5L19OpN8Wd3SnBW9UsBDGaVqsXpo/iLPSqx9FH
 8GVHck53r9GQPA/AaMm0a27KuX4OT/exLRJqS9rHRqAuAR+G/Q/Hsv1cXhF2Qs5z
 2/wymh8eEXwwKZcPik0z6BVdChJeyXvRMCQJ62sPnCm1xFh2ZiWMeYoUlDNzura4
 iu31dz8dz/8ZNOb9oIyAsQtYgnJ9n/42JIXRpL1uKvJ1nCYQPzejvPOWrVA7Mlv+
 zoTDyvT7f048DVSovnDQc1G48Yj2y8vZrV64zVOjsY7oyIhAJKuT20EBtaXWtfty
 VZ8mJN9+EK+yl9d3q2e1Ua9Sqj5t4hoi792jniziIAA9W5aPfFsZRFc5v4tYfxKx
 2jROWfxa8cS09d/ShTms5K8pCcq2QYzCANbEOgY2k+CSH+Odh9GtHDFAbWDuSddT
 xM6lFmWvUxiEH4fX9LLtLkVgvK3J66O3MWwrn1IkddIq5yZMnGfaLTW2qkBJv087
 nRS3UBSwEipkJthHiOpd
 =0Wy1
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20151125' into staging

migration/next for 20151125

# gpg: Signature made Wed 25 Nov 2015 14:28:47 GMT using RSA key ID 5872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg:                 aka "Juan Quintela <quintela@trasno.org>"

* remotes/juanquintela/tags/migration/20151125:
  block-migration: limit the memory usage
  Assume madvise for (no)hugepage works

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2015-11-25 16:20:58 +00:00
parent 1a4dab849d f77dcdbc76
commit c7933a80bc
2 changed files with 8 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
migration/block.c
View file

@ -36,6 +36,8 @@
#define MAX_IS_ALLOCATED_SEARCH 65536
#define MAX_INFLIGHT_IO 512
//#define DEBUG_BLK_MIGRATION
#ifdef DEBUG_BLK_MIGRATION
@ -665,7 +667,10 @@ static int block_save_iterate(QEMUFile *f, void *opaque)
blk_mig_lock();
while ((block_mig_state.submitted +
block_mig_state.read_done) * BLOCK_SIZE <
qemu_file_get_rate_limit(f)) {
qemu_file_get_rate_limit(f) &&
(block_mig_state.submitted +
block_mig_state.read_done) <
MAX_INFLIGHT_IO) {
blk_mig_unlock();
if (block_mig_state.bulk_completed == 0) {
/* first finish the bulk phase */

10
migration/postcopy-ram.c
View file

@ -241,10 +241,7 @@ static int cleanup_range(const char *block_name, void *host_addr,
* We turned off hugepage for the precopy stage with postcopy enabled
* we can turn it back on now.
*/
if (qemu_madvise(host_addr, length, QEMU_MADV_HUGEPAGE)) {
error_report("%s HUGEPAGE: %s", __func__, strerror(errno));
return -1;
}
qemu_madvise(host_addr, length, QEMU_MADV_HUGEPAGE);
/*
* We can also turn off userfault now since we should have all the
@ -345,10 +342,7 @@ static int nhp_range(const char *block_name, void *host_addr,
* do delete areas of the page, even if THP thinks a hugepage would
* be a good idea, so force hugepages off.
*/
if (qemu_madvise(host_addr, length, QEMU_MADV_NOHUGEPAGE)) {
error_report("%s: NOHUGEPAGE: %s", __func__, strerror(errno));
return -1;
}
qemu_madvise(host_addr, length, QEMU_MADV_NOHUGEPAGE);
return 0;
}