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| author | Wei Yang <richardw.yang@linux.intel.com> | 2019-11-07 20:39:05 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2020-01-20 09:10:23 +0100 |
| commit | e5e73b0f90d0ac956782378b92897455e8104a7e (patch) | |
| tree | 97cf869b1205d6f2dfe145272ca28d3b7fc0cf2c /migration/ram.c | |
| parent | 4cbb3c63c165ae71b71f764030c7b16d98679391 (diff) | |
| download | qemu-e5e73b0f90d0ac956782378b92897455e8104a7e.zip qemu-e5e73b0f90d0ac956782378b92897455e8104a7e.tar.gz qemu-e5e73b0f90d0ac956782378b92897455e8104a7e.tar.bz2 | |
migration/postcopy: set all_zero to true on the first target page
For the first target page, all_zero is set to true for this round check.
After target_pages introduced, we could leverage this variable instead
of checking the address offset.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration/ram.c')
| -rw-r--r-- | migration/ram.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/migration/ram.c b/migration/ram.c index 8ebaea2..460abfa 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -4102,7 +4102,7 @@ static int ram_load_postcopy(QEMUFile *f) page_buffer = postcopy_host_page + ((uintptr_t)host & (block->page_size - 1)); /* If all TP are zero then we can optimise the place */ - if (!((uintptr_t)host & (block->page_size - 1))) { + if (target_pages == 1) { all_zero = true; } else { /* not the 1st TP within the HP */ |