History | View | Annotate | Download (3.9 kB)
misc: move include files to include/qemu/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
block: move include files to include/block/
block: raw image file reopen
These are the stubs for the file reopen drivers for the raw format.
There is currently nothing that needs to be done by the raw driverin reopen.
Signed-off-by: Jeff Cody <jcody@redhat.com>Signed-off-by: Kevin Wolf <kwolf@redhat.com>
raw: hook into blkdebug
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>Signed-off-by: Kevin Wolf <kwolf@redhat.com>
block: implement is_allocated for raw
Either FIEMAP, or SEEK_DATA+SEEK_HOLE can be used to implement theis_allocated callback for raw files. On Linux ext4, btrfs and XFSall support it.
block: push recursive flushing up from drivers
block: bdrv_eject(): Make eject_flag a real bool
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>Reviewed-by: Markus Armbruster <armbru@redhat.com>Acked-by: Kevin Wolf <kwolf@redhat.com>
block: Rename bdrv_co_flush to bdrv_co_flush_to_disk
There are two different types of flush that you can do: Flushing one level upto the OS (i.e. writing data to the host page cache) or flushing it all the waydown to the disk. The existing functions flush to the disk, reflect this in the...
block: drop redundant bdrv_flush implementation
Block drivers now only need to provide either of .bdrv_co_flush,.bdrv_aio_flush() or for legacy drivers .bdrv_flush(). Removethe redundant .bdrv_flush() implementations.
[Paolo Bonzini: change raw driver to bdrv_co_flush]...
block: add bdrv_co_discard and bdrv_aio_discard support
This similarly adds support for coroutine and asynchronous discard.
block: use coroutine interface for raw format
The raw format delegates all operations to bs->file (the protocol).Previously this block driver exposed both sync and aio interfaces.Since the block layer now works in terms of coroutines, expose thecoroutine interfaces and drop the others. This avoids unnecessary...
block: Rename bdrv_set_locked() to bdrv_lock_medium()
While there, make the locked parameter bool.
Signed-off-by: Markus Armbruster <armbru@redhat.com>Signed-off-by: Kevin Wolf <kwolf@redhat.com>
block/raw: Fix to forward method bdrv_media_changed()
Block driver "raw" forwards most methods to the underlying blockdriver. However, it doesn't implement method bdrv_media_changed().Makes bdrv_media_changed() always return -ENOTSUP.
I believe -fda /dev/fd0 gives you raw over host_floppy, and disk...
Use glib memory allocation and free functions
qemu_malloc/qemu_free no longer exist after this commit.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
block: Make BlockDriver method bdrv_set_locked() return void
The only caller is bdrv_set_locked(), and it ignores the value.
Callees always return 0, except for FreeBSD's cdrom_set_locked(),which returns -ENOTSUP when the device is in a terminally wedged...
block: Make BlockDriver method bdrv_eject() return void
Callees always return 0, except for FreeBSD's cdrom_eject(), whichreturns -ENOTSUP when the device is in a terminally wedged state.
The only caller is bdrv_eject(), and it maps -ENOTSUP to 0 since...
block: add discard support
Add a new bdrv_discard method to free blocks in a mapping image, and a newdrive property to set the granularity for these discard. If no discardgranularity support is set discard support is disabled.
Signed-off-by: Christoph Hellwig <hch@lst.de>...
block: Allow bdrv_flush to return errors
This changes bdrv_flush to return 0 on success and -errno in case of failure.It's a requirement for implementing proper error handle in users of bdrv_flush.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Revert "Make default invocation of block drivers safer (v3)"
This reverts commit 79368c81bf8cf93864d7afc88b81b05d8f0a2c90.
Conflicts:
block.c
I haven't been able to come up with a solution yet for the corruption caused byunaligned requests from the IDE disk so revert until a solution can be written....
block: Fix bdrv_has_zero_init
Assuming that any image on a block device is not properly zero-initialized isactually wrong: Only raw images have this problem. Any other image formatshouldn't care about it, they initialize everything properly themselves....
Make default invocation of block drivers safer (v3)
CVE-2008-2004 described a vulnerability in QEMU whereas a malicious user couldtrick the block probing code into accessing arbitrary files in a guest. Tomitigate this, we added an explicit format parameter to -drive which disabling...
block: separate raw images from the file protocol
We're running into various problems because the "raw" file access, whichis used internally by the various image formats is entangled with the"raw" image format, which maps the VM view 1:1 to a file system....
block: Open the underlying image file in generic code
Format drivers shouldn't need to bother with things like file names, but ratherjust get an open BlockDriverState for the underlying protocol. This patchintroduces this behaviour for bdrv_open implementation. For protocols which...