req_vq/event_vq forgot to free in unrealize. Fix that.
And also do clean 's->as_by_busptr' hash table in unrealize to fix another leak.
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Acked-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20200328005705.29898-3-pannengyuan@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_vqs forgot to free on the error path in realize(). Fix that.
The asan stack:
Direct leak of 14336 byte(s) in 1 object(s) allocated from:
#0 0x7f58b93fd970 in __interceptor_calloc (/lib64/libasan.so.5+0xef970)
#1 0x7f58b858249d in g_malloc0 (/lib64/libglib-2.0.so.0+0x5249d)
#2 0x5562cc627f49 in virtio_add_queue /mnt/sdb/qemu/hw/virtio/virtio.c:2413
#3 0x5562cc4b524a in virtio_blk_device_realize /mnt/sdb/qemu/hw/block/virtio-blk.c:1202
#4 0x5562cc613050 in virtio_device_realize /mnt/sdb/qemu/hw/virtio/virtio.c:3615
#5 0x5562ccb7a568 in device_set_realized /mnt/sdb/qemu/hw/core/qdev.c:891
#6 0x5562cd39cd45 in property_set_bool /mnt/sdb/qemu/qom/object.c:2238
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200328005705.29898-2-pannengyuan@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Coverity spots subj in following guest triggered code path
pci_write(, data = 0) -> acpi_pcihp_eject_slot(,slots = 0)
uinst32_t slot = ctz32(slots)
...
... = ~(1U << slot)
where 'slot' value is 32 in case 'slots' bitmap is empty.
'slots' is a bitmap and empty one shouldn't do anything
so return early doing nothing if resulted slot value is
not valid (i.e. not in 0-31 range)
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200326135624.32464-1-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
As suggested by Michael, let's add me as co-maintainer of virtio-balloon.
While at it, also add "balloon.c" and "include/sysemu/balloon.h" to the
file list.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20200312133725.8192-1-david@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
If the process documented in tests/qtest/bios-tables-test.c
is followed, then same patch never touches both expected
files and code. Teach checkpatch to enforce this rule.
Tested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Loongson multimedia condition instructions were previously implemented as
write 0 to rd due to lack of documentation. So I just confirmed with Loongson
about their encoding and implemented them correctly.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Acked-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <20200324122212.11156-1-jiaxun.yang@flygoat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Recent toolchains support static and pie at the same time.
As with normal dynamic builds, allow --static to default to PIE
if supported by the toolchain. Allow --enable/--disable-pie to
override the default.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Fix --disable-pie --static
v3: Update for QEMU_LDFLAGS.
Some distributions, e.g. Ubuntu 19.10, enable PIE by default.
If for some reason one wishes to build a non-pie binary, we
must provide additional options to override.
At the same time, reorg the code to an elif chain.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v3: Update for QEMU_LDFLAGS.
There is nothing about these options that is related to PIE.
Use them unconditionally.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fangrui Song <i@maskray.me>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Do not split into two tests.
v3: Update to QEMU_LDFLAGS.
The CFLAGS_NOPIE and LDFLAGS_NOPIE variables are used
in pc-bios/optionrom/Makefile, which has nothing to do
with the PIE setting of the main qemu executables.
This overrides any operating system default to build
all executables as PIE, which is important for ROMs.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
PIE is supported on many other hosts besides x86.
The default for non-x86 is now the same as x86: pie is used
if supported, and may be forced via --enable/--disable-pie.
The original commit (40d6444e91) said:
"Non-x86 are not changed, as they require TCG changes"
but I think that's wrong -- there's nothing about PIE that
affects TCG one way or another.
Tested on aarch64 (bionic) and ppc64le (centos 7) hosts.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The commentary talks about "in concert with the addresses
assigned in the relevant linker script", except there is no
linker script for softmmu, nor has there been for some time.
(Do not confuse the user-only linker script editing that was
removed in the previous patch, because user-only does not
use this code_gen_buffer allocation method.)
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This adjustment was random and unnecessary. The user mode
startup code in probe_guest_base() will choose a value for
guest_base that allows the host qemu binary to not conflict
with the guest binary.
With modern distributions, this isn't even used, as the default
is PIE, which does the same job in a more portable way.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Remove mention of config-host.ld from make distclean
This prevents the memory from qemu_allocate_irqs() from being leaked which
can in some cases be spotted by Coverity (CID 1421984).
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20200324210519.2974-4-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
This prevents the memory from qemu_allocate_irqs() from being leaked which
can in some cases be spotted by Coverity (CID 1421984).
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20200324210519.2974-3-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
The PCI level calculation was accidentally left in when rebasing from a
previous patchset. Since both IRQs are driven separately, the value
being passed into the IRQ handler should be used directly.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20200324210519.2974-2-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
Coverity points out (CID 1421984) that we are leaking the
memory returned by qemu_allocate_irqs(). We can avoid this
leak by switching to using qdev_init_gpio_in(); the base
class finalize will free the irqs that this allocates under
the hood.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 20200323151715.29454-1-peter.maydell@linaro.org
[Maintainer edit: replace `DEVICE(dev)` by `ds` --js]
Signed-off-by: John Snow <jsnow@redhat.com>
While working on the Tulip driver i tried to write some Teledisk images to
a floppy image which didn't work. Turned out that Teledisk checks the written
data by issuing a READ command to the FDC but running the DMA controller
in VERIFY mode. As we ignored the DMA request in that case, the DMA transfer
never finished, and Teledisk reported an error.
The i8257 spec says about verify transfers:
3) DMA verify, which does not actually involve the transfer of data. When an
8257 channel is in the DMA verify mode, it will respond the same as described
for transfer operations, except that no memory or I/O read/write control signals
will be generated.
Hervé proposed to remove all the dma_mode_ok stuff from fdc to have a more
clear boundary between DMA and FDC, so this patch also does that.
Suggested-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
These fields were already removed in commit c3c10f72, but then commit
b58deb34 revived them probably due to bad merge conflict resolution.
They are still unused, so remove them again.
Fixes: b58deb344d
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326170757.12344-1-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
mirror_wait_for_free_in_flight_slot() just picks a random operation to
wait for. However, a MirrorOp is already in s->ops_in_flight when
mirror_co_read() waits for free slots, so if not enough slots are
immediately available, an operation can end up waiting for itself, or
two or more operations can wait for each other to complete, which
results in a hang.
Fix this by adding a flag to MirrorOp that tells us if the request is
already in flight (and therefore occupies slots that it will later
free), and picking only such operations for waiting.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1794692
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326153628.4869-3-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This reverts commit 7e6c4ff792.
The fix was incomplete as it only protected against requests waiting for
themselves, but not against requests waiting for each other. We need a
different solution.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326153628.4869-2-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The given argument for this trace should be cqid, not sqid.
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Message-Id: <20200324140646.8274-1-minwoo.im.dev@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
bdrv_root_attach_child promises to drop child_bs reference on failure.
It does it on first handled failure path, but not on the second. Fix
that.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200324155921.23822-1-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Clang static code analyzer show warning:
block/iscsi.c:1920:9: warning: Value stored to 'flags' is never read
flags &= ~BDRV_O_RDWR;
^ ~~~~~~~~~~~~
In iscsi_allocmap_init() only checks BDRV_O_NOCACHE, which
is the same in both of flags and bs->open_flags.
We can use the flags instead bs->open_flags to prevent Clang warning.
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200311032927.35092-1-kuhn.chenqun@huawei.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Add a job to build QEMU on s390x with TCG disabled, so
this configuration won't bitrot over time.
This job is quick, running check-unit: Ran for 5 min 30 sec
https://travis-ci.org/github/philmd/qemu/jobs/665456423
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322154015.25358-1-philmd@redhat.com>
Message-Id: <20200323161514.23952-12-alex.bennee@linaro.org>
Install optional dependencies of QEMU to get better coverage.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-5-philmd@redhat.com>
Message-Id: <20200323161514.23952-11-alex.bennee@linaro.org>
The Python2 PyYAML is now pointless, switch to the Python3 version.
Fixes: bcbf27947 (docker: move tests from python2 to python3)
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-4-philmd@redhat.com>
Message-Id: <20200323161514.23952-10-alex.bennee@linaro.org>
In commit 6f8bbb374b we enabled building with the gcrypt library
on the the Debian 'x86 host', which was based on Debian Stretch.
Later in commit 698a71edbe we upgraded the Debian base image to
Buster.
Apparently Debian Stretch was listing gcrypt as a QEMU dependency,
but this is not the case anymore in Buster, so we need to install
it manually (it it not listed by 'apt-get -s build-dep qemu' in
the common debian10.docker anymore). This fixes:
$ ../configure $QEMU_CONFIGURE_OPTS
ERROR: User requested feature gcrypt
configure was not able to find it.
Install gcrypt devel >= 1.5.0
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-3-philmd@redhat.com>
Message-Id: <20200323161514.23952-9-alex.bennee@linaro.org>
Keep package list sorted, this eases rebase/cherry-pick.
Fixes: 3a6784813
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-2-philmd@redhat.com>
Message-Id: <20200323161514.23952-8-alex.bennee@linaro.org>
While debugging check-acceptance failures I found an instability in
the mips64el test case. Briefly the test case:
retry.py -n 100 -c -- ./mips64el-softmmu/qemu-system-mips64el \
-display none -vga none -serial mon:stdio \
-machine malta -kernel ./vmlinux-4.7.0-rc1.I6400 \
-cpu I6400 -smp 8 -vga std \
-append "printk.time=0 clocksource=GIC console=tty0 console=ttyS0 panic=-1" \
--no-reboot
Reports about a 9% failure rate:
Results summary:
0: 91 times (91.00%), avg time 5.547 (0.45 varience/0.67 deviation)
-6: 9 times (9.00%), avg time 3.394 (0.02 varience/0.13 deviation)
Ran command 100 times, 91 passes
When re-run with "--accel tcg,thread=single" the instability goes
away.
Results summary:
0: 100 times (100.00%), avg time 17.318 (249.76 varience/15.80 deviation)
Ran command 100 times, 100 passes
Which seems to indicate there is some aspect of the MIPS MTTCG fixes
that has been missed. Ideally we would fix that but I'm afraid I don't
have time to investigate and am not super familiar with the
architecture anyway. In lieu of someone tracking down the failure lets
disable it for now.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>
Message-Id: <20200323161514.23952-7-alex.bennee@linaro.org>
When the patch was merged it was part of a longer series which had
already merged the config changes. Semu-revert the config related
changes for now so things will build.
Fixes: b081986c85
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200323161514.23952-6-alex.bennee@linaro.org>
The installer supports GPT now, so the install workflow has changed a
bit. Also: run without VGA device. This works around a bug in the
seabios sercon code and makes the bootloader menu show up on the serial
line, so we can drop the quirk for that.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200310083218.26355-5-kraxel@redhat.com>
Message-Id: <20200323161514.23952-5-alex.bennee@linaro.org>
Move '-device VGA' from basevm.py to the guests, so they have
the chance to opt out and run without display device.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200310083218.26355-3-kraxel@redhat.com>
Message-Id: <20200323161514.23952-3-alex.bennee@linaro.org>
Run "tail -f /var/tmp/*/qemu*console.raw" in another terminal
to watch the install console.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200310083218.26355-2-kraxel@redhat.com>
Message-Id: <20200323161514.23952-2-alex.bennee@linaro.org>
Deep inside the FreeBSD netmap headers we end up including stdatomic.h
which clashes with qemu's atomic functions which are modelled along
the C11 standard. To avoid a massive rename lets just ifdef around the
problem.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200326170121.13045-1-alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
- Fix qemu-img convert with a host device or iscsi target
- Use-after-free fix in mirror
- Some minor qcow2 fixes
- Minor sheepdog fix
- Minor qemu-img check report fix
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Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2020-03-26' into staging
Block patches for 5.0-rc1:
- Fix qemu-img convert with a host device or iscsi target
- Use-after-free fix in mirror
- Some minor qcow2 fixes
- Minor sheepdog fix
- Minor qemu-img check report fix
# gpg: Signature made Thu 26 Mar 2020 14:28:26 GMT
# gpg: using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
# gpg: issuer "mreitz@redhat.com"
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40
* remotes/maxreitz/tags/pull-block-2020-03-26:
iotests/138: Test leaks/corruptions fixed report
iotests: Add poke_file_[bl]e functions
qemu-img: Fix check's leak/corruption fix report
sheepdog: Consistently set bdrv_has_zero_init_truncate
qcow2: Avoid feature name extension on small cluster size
qcow2: List autoclear bit names in header
qcow2: Comment typo fixes
block: trickle down the fallback image creation function use to the block drivers
block: pass BlockDriver reference to the .bdrv_co_create
block/mirror: fix use after free of local_err
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Test that qemu-img check reports the number of leaks and corruptions
fixed in its JSON report (after a successful run).
While touching the _unsupported_imgopts line, adjust the note on why
data_file does not work with this test: The current comment sounds a bit
like it is a mistake for qemu-img check not to check external data
files' refcounts. But there are no such refcounts, so it is no mistake.
Just say that qemu-img check does not do much for external data files,
and this is why this test does not work with them.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200324172757.1173824-4-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Similarly to peek_file_[bl]e, we may want to write binary integers into
a file. Currently, this often means messing around with poke_file and
raw binary strings. I hope these functions make it a bit more
comfortable.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Code-suggested-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200324172757.1173824-3-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
There are two problems with qemu-img check's report on how many leaks
and/or corruptions have been fixed:
(1) ImageCheck.has_leaks_fixed and ImageCheck.has_corruptions_fixed are
only true when ImageCheck.leaks or ImageCheck.corruptions (respectively)
are non-zero. qcow2's check implementation will set the latter to zero
after it has fixed leaks and corruptions, though, so leaks-fixed and
corruptions-fixed are actually never reported after successful repairs.
We should always report them when they are non-zero, just like all the
other fields of ImageCheck.
(2) After something has been fixed and we run the check a second time,
leaks_fixed and corruptions_fixed are taken from the first run; but
has_leaks_fixed and has_corruptions_fixed are not. The second run
actually cannot fix anything, so with (1) fixed, has_leaks_fixed and
has_corruptions_fixed will always be false here. (With (1) unfixed,
they will at least be false on successful runs, because then the number
of leaks and corruptions found in the second run should be 0.)
We should save has_leaks_fixed and has_corruptions_fixed just like we
save leaks_fixed and corruptions_fixed.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200324172757.1173824-2-mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
block_int.h claims that .bdrv_has_zero_init must return 0 if
.bdrv_has_zero_init_truncate does likewise; but this is violated if
only the former callback is provided if .bdrv_co_truncate also exists.
When adding the latter callback, it was mistakenly added to only one
of the three possible sheepdog instantiations.
Fixes: 1dcaf527
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200324174233.1622067-5-eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
As the feature name table can be quite large (over 9k if all 64 bits
of all three feature fields have names; a mere 8 features leaves only
8 bytes for a backing file name in a 512-byte cluster), it is unwise
to emit this optional header in images with small cluster sizes.
Update iotest 036 to skip running on small cluster sizes; meanwhile,
note that iotest 061 never passed on alternative cluster sizes
(however, I limited this patch to tests with output affected by adding
feature names, rather than auditing for other tests that are not
robust to alternative cluster sizes).
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20200324174233.1622067-4-eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
The feature table is supposed to advertise the name of all feature
bits that we support; however, we forgot to update the table for
autoclear bits. While at it, move the table to read-only memory in
code, and tweak the qcow2 spec to name the second autoclear bit.
Update iotests that are affected by the longer header length.
Fixes: 88ddffae
Fixes: 93c24936
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200324174233.1622067-3-eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Various trivial typos noticed while working on this file.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20200324174233.1622067-2-eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Instead of checking the .bdrv_co_create_opts to see if we need the
fallback, just implement the .bdrv_co_create_opts in the drivers that
need it.
This way we don't break various places that need to know if the
underlying protocol/format really supports image creation, and this way
we still allow some drivers to not support image creation.
Fixes: fd17146cd9
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1816007
Note that technically this driver reverts the image creation fallback
for the vxhs driver since I don't have a means to test it, and IMHO it
is better to leave it not supported as it was prior to generic image
creation patches.
Also drop iscsi_create_opts which was left accidentally.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200326011218.29230-3-mlevitsk@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
[mreitz: Fixed alignment, and moved bdrv_co_create_opts_simple() and
bdrv_create_opts_simple from block.h into block_int.h]
Signed-off-by: Max Reitz <mreitz@redhat.com>
