qemu/docs
Kevin Wolf 4fabffc112 Specification for qcow2 version 3
This updates the qcow2 specification to cover version 3. It contains the
following changes:

- Added compatible/incompatible/auto-clear feature bits plus an optional
  feature name table to allow useful error messages even if an older
  version doesn't know some feature at all.

- Configurable refcount width. If you don't want to use internal
  snapshots, make refcounts one bit and save cache space and I/O.

- Zero cluster flags. This allows discard even with a backing file that
  doesn't contain zeros. It is also useful for copy-on-read/image
  streaming, as you'll want to keep sparseness without accessing the
  remote image for an unallocated cluster all the time.

- Fixed internal snapshot metadata to use 64 bit VM state size. You
  can't save a snapshot of a VM with >= 4 GB RAM today.

- Extended internal snapshot metadata to contain the disk size, so that
  resizing images that have snapshots can be allowed in the future.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20 15:57:27 +02:00
..
specs Specification for qcow2 version 3 2012-04-20 15:57:27 +02:00
blkverify.txt blkverify: Add block driver for verifying I/O 2010-09-21 17:00:53 +02:00
bootindex.txt Add boot index documentation. 2011-02-01 16:50:44 -06:00
ccid.txt Replace Qemu by QEMU in internal documentation 2012-04-07 13:58:25 +00:00
ich9-ehci-uhci.cfg usb: update documentation 2011-07-08 11:25:56 +02:00
libcacard.txt libcacard: Spelling and grammar fixes in documentation 2012-03-08 15:22:11 +00:00
live-block-ops.txt docs: describe live block operations 2012-01-26 14:49:18 +01:00
memory.txt memory: minor documentation fixes/enhancements 2011-12-06 10:10:21 +00:00
migration.txt docs: document memory API interaction with migration 2011-12-07 18:57:41 +02:00
qapi-code-gen.txt qapi: untangle next_list 2012-03-27 09:14:19 -03:00
qdev-device-use.txt docs: Fix qdev-device-use.txt typo in -chardev serial, path=COM<NUM> 2011-09-09 09:43:17 +01:00
tracing.txt docs: correct ./configure line in tracing.txt 2012-03-12 10:12:34 +00:00
usb2.txt usb: update documentation 2011-07-08 11:25:56 +02:00
writing-qmp-commands.txt Spelling fixes in comments and documentation 2012-01-13 10:36:59 +00:00
xen-save-devices-state.txt Introduce "xen-save-devices-state" 2012-03-19 18:21:00 +00:00