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| author | Steve Sistare <steven.sistare@oracle.com> | 2023-06-07 08:18:36 -0700 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2023-06-13 11:28:58 +0200 |
| commit | b0182e537e5aba38031a5009cb16d5e924342458 (patch) | |
| tree | 67840f4419f12bc9de0005d2cbd0af316f2c4a3d /hw/xen/xen-mapcache.c | |
| parent | 6fe4f6c941923608027e10af5dd30f18d481f9b9 (diff) | |
| download | focaccia-qemu-b0182e537e5aba38031a5009cb16d5e924342458.tar.gz focaccia-qemu-b0182e537e5aba38031a5009cb16d5e924342458.zip | |
exec/memory: Introduce RAM_NAMED_FILE flag
migrate_ignore_shared() is an optimization that avoids copying memory that is visible and can be mapped on the target. However, a memory-backend-ram or a memory-backend-memfd block with the RAM_SHARED flag set is not migrated when migrate_ignore_shared() is true. This is wrong, because the block has no named backing store, and its contents will be lost. To fix, ignore shared memory iff it is a named file. Define a new flag RAM_NAMED_FILE to distinguish this case. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Peter Xu <peterx@redhat.com> Message-Id: <1686151116-253260-1-git-send-email-steven.sistare@oracle.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Diffstat (limited to 'hw/xen/xen-mapcache.c')
0 files changed, 0 insertions, 0 deletions