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66176fc6a7
qemu/block
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Jeff Cody 66176fc6a7 block/vpc: make checks on max table size a bit more lax 
The check on the max_table_size field not being larger than required is
valid, and in accordance with the VHD spec.  However, there have been
VHD images encountered in the wild that have an out-of-spec max table
size that is technically too large.

There is no issue in allowing this larger table size, as we also
later verify that the computed size (used for the pagetable) is
large enough to fit all sectors.  In addition, max_table_entries
is bounds checked against SIZE_MAX and INT_MAX.

Remove the strict check, so that we can accomodate these sorts of
images that are benignly out of spec.

Reported-by: Stefan Hajnoczi <stefanha@redhat.com>
Reported-by: Grant Wu <grantwwu@gmail.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-04-15 17:22:12 +02:00
..
accounting.c block: Clean up includes 2016-01-20 13:36:23 +01:00
archipelago.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
backup.c block: Remove bdrv_(set_)enable_write_cache() 2016-03-30 12:16:03 +02:00
blkdebug.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
blkreplay.c replay: introduce block devices record/replay 2016-03-30 12:15:57 +02:00
blkverify.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
block-backend.c block: Fix blk_aio_write_zeroes() 2016-04-15 17:22:11 +02:00
bochs.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
cloop.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
commit.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
crypto.c crypto: Avoid memory leak on failure 2016-04-05 17:23:21 +02:00
curl.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
dirty-bitmap.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
dmg.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
gluster.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
io.c block: Fix bdrv_drain in coroutine 2016-04-11 16:59:09 +01:00
iscsi.c iscsi: Support BDRV_REQ_FUA 2016-03-30 12:16:02 +02:00
linux-aio.c block: Clean up includes 2016-01-20 13:36:23 +01:00
Makefile.objs replay: introduce block devices record/replay 2016-03-30 12:15:57 +02:00
mirror.c mirror: Replace bdrv_drain(bs) with bdrv_co_drain(bs) 2016-04-11 16:59:09 +01:00
nbd-client.c nbd: don't request FUA on FLUSH 2016-04-05 11:46:52 +02:00
nbd-client.h nbd: Support BDRV_REQ_FUA 2016-03-30 12:16:02 +02:00
nbd.c nbd: Support BDRV_REQ_FUA 2016-03-30 12:16:02 +02:00
nfs.c block/nfs: add missing #include "qemu/cutils.h" 2016-03-30 16:50:39 -04:00
null.c block/null-{co,aio}: Implement get_block_status() 2016-03-30 12:16:04 +02:00
parallels.c block: Always set writeback mode in blk_new_open() 2016-03-30 12:16:01 +02:00
qapi.c block/qapi: Use blk_enable_write_cache() 2016-03-30 12:16:02 +02:00
qcow2-cache.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qcow2-cluster.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
qcow2-refcount.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
qcow2-snapshot.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
qcow2.c qcow2: Prevent backing file names longer than 1023 2016-04-12 18:06:51 +02:00
qcow2.h qcow2: Add function for refcount order amendment 2015-12-18 14:34:43 +01:00
qcow.c block: Always set writeback mode in blk_new_open() 2016-03-30 12:16:01 +02:00
qed-check.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-cluster.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-gencb.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-l2-cache.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-table.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed.c block: Always set writeback mode in blk_new_open() 2016-03-30 12:16:01 +02:00
qed.h util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
quorum.c quorum: Emit QUORUM_REPORT_BAD for reads in fifo mode 2016-03-17 16:43:30 +01:00
raw_bsd.c raw: Support BDRV_REQ_FUA 2016-03-30 12:16:02 +02:00
raw-aio.h include/qemu/iov.h: Don't include qemu-common.h 2016-03-22 22:20:16 +01:00
raw-posix.c block/raw-posix.c: Make physical devices usable in QEMU under Mac OS X host 2016-03-30 11:59:32 +02:00
raw-win32.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
rbd.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
sheepdog.c block: Always set writeback mode in blk_new_open() 2016-03-30 12:16:01 +02:00
snapshot.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
ssh.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
stream.c -----BEGIN PGP SIGNATURE----- 2016-03-29 19:54:49 +01:00
throttle-groups.c block: Clean up includes 2016-01-20 13:36:23 +01:00
vdi.c block: Always set writeback mode in blk_new_open() 2016-03-30 12:16:01 +02:00
vhdx-endian.c block: Clean up includes 2016-01-20 13:36:23 +01:00
vhdx-log.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
vhdx.c block: Always set writeback mode in blk_new_open() 2016-03-30 12:16:01 +02:00
vhdx.h
vmdk.c block: Always set writeback mode in blk_new_open() 2016-03-30 12:16:01 +02:00
vpc.c block/vpc: make checks on max table size a bit more lax 2016-04-15 17:22:12 +02:00
vvfat.c block: Remove BDRV_O_CACHE_WB 2016-03-30 12:16:03 +02:00
win32-aio.c block: Clean up includes 2016-01-20 13:36:23 +01:00
write-threshold.c block: Clean up includes 2016-01-20 13:36:23 +01:00