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${ noResults }
qemu/qapi
On some image chains, QEMU may not always be able to resolve the filenames properly, when updating the backing file of an image after a block job. For instance, certain relative pathnames may fail, or drives may have been specified originally by file descriptor (e.g. /dev/fd/???), or a relative protocol pathname may have been used. In these instances, QEMU may lack the information to be able to make the correct choice, but the user or management layer most likely does have that knowledge. With this extension to the block-stream api, the user is able to change the backing file of the active layer as part of the block-stream operation. This allows the change to be 'safe', in the sense that if the attempt to write the active image metadata fails, then the block-stream operation returns failure, without disrupting the guest. If a backing file string is not specified in the command, the backing file string to use is determined in the same manner as it was previously. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> |
12 years ago | |
|---|---|---|
| .. | ||
| Makefile.objs | qapi: add event helper functions | 12 years ago |
| block-core.json | block: add backing-file option to block-stream | 12 years ago |
| block.json | qapi event: convert DEVICE_TRAY_MOVED | 12 years ago |
| common.json | qapi: Extract qapi/common.json definitions | 12 years ago |
| event.json | qapi: Change back sector-count to sectors-count in quorum QAPI events. | 12 years ago |
| opts-visitor.c | QemuOpts: change opt->name|str from (const char *) to (char *) | 12 years ago |
| qapi-dealloc-visitor.c | Revert "qapi: Clean up superfluous null check in qapi_dealloc_type_str()" | 12 years ago |
| qapi-visit-core.c | qapi: Replace uncommon use of the error API by the common one | 12 years ago |
| qmp-dispatch.c | qapi: Clean up fragile use of error_is_set() | 12 years ago |
| qmp-event.c | qapi: add event helper functions | 12 years ago |
| qmp-input-visitor.c | qapi: Replace start_optional()/end_optional() by optional() | 12 years ago |
| qmp-output-visitor.c | qapi: Avoid output visitor crashing if it encounters a NULL value | 12 years ago |
| qmp-registry.c | qemu-ga: Extend 'guest-info' command to expose flag 'success-response' | 13 years ago |
| string-input-visitor.c | qapi: fix input visitor bugs | 12 years ago |
| string-output-visitor.c | qapi/string-output-visitor: fix human output | 12 years ago |