| commit | 2ce16640b4cc9ab9e7e6bde9e4264b102e0eb73d | |
| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | |
| Mon, 12 Mar 2018 17:20:58 +0000 (12 17:20 +0000) | ||
| committer | Michael S. Tsirkin <mst@redhat.com> | |
| Tue, 20 Mar 2018 03:03:27 +0000 (20 05:03 +0200) | ||
| tree | d35a0ed702eaf057ffbd886db9c54d911ee2dd76 | treesnapshot (tar.gz zip) |
| parent | f90bb71bfdaca6ece1696e194aad11fb8599ffba | commitdiff |
postcopy: use UFFDIO_ZEROPAGE only when available
Use a flag on the RAMBlock to state whether it has the
UFFDIO_ZEROPAGE capability, use it when it's available.
This allows the use of postcopy on tmpfs as well as hugepage
backed files.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Use a flag on the RAMBlock to state whether it has the
UFFDIO_ZEROPAGE capability, use it when it's available.
This allows the use of postcopy on tmpfs as well as hugepage
backed files.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| exec.c | diffblobblamehistory | |
| include/exec/cpu-common.h | diffblobblamehistory | |
| migration/postcopy-ram.c | diffblobblamehistory |