Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20220307' into staging

target-arm queue:
* cleanups of qemu_oom_check() and qemu_memalign()
* target/arm/translate-neon: UNDEF i

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20220307' into staging

target-arm queue:
* cleanups of qemu_oom_check() and qemu_memalign()
* target/arm/translate-neon: UNDEF if VLD1/VST1 stride bits are non-zero
* target/arm/translate-neon: Simplify align field check for VLD3
* GICv3 ITS: add more trace events
* GICv3 ITS: implement 8-byte accesses properly
* GICv3: fix minor issues with some trace/log messages
* ui/cocoa: Use the standard about panel
* target/arm: Provide cpu property for controling FEAT_LPA2
* hw/arm/virt: Disable LPA2 for -machine virt-6.2

# gpg: Signature made Mon 07 Mar 2022 16:46:06 GMT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20220307:
hw/arm/virt: Disable LPA2 for -machine virt-6.2
target/arm: Provide cpu property for controling FEAT_LPA2
ui/cocoa: Use the standard about panel
hw/intc/arm_gicv3_cpuif: Fix register names in ICV_HPPIR read trace event
hw/intc/arm_gicv3: Fix missing spaces in error log messages
hw/intc/arm_gicv3: Specify valid and impl in MemoryRegionOps
hw/intc/arm_gicv3_its: Add trace events for table reads and writes
hw/intc/arm_gicv3_its: Add trace events for commands
target/arm/translate-neon: Simplify align field check for VLD3
target/arm/translate-neon: UNDEF if VLD1/VST1 stride bits are non-zero
osdep: Move memalign-related functions to their own header
util: Put qemu_vfree() in memalign.c
util: Use meson checks for valloc() and memalign() presence
util: Share qemu_try_memalign() implementation between POSIX and Windows
meson.build: Don't misdetect posix_memalign() on Windows
util: Return valid allocation for qemu_try_memalign() with zero size
util: Unify implementations of qemu_memalign()
util: Make qemu_oom_check() a static function

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

osdep: Move memalign-related functions to their own header

Move the various memalign-related functions out of osdep.h and into
their own header, which we include only where they are used.
While we'r

osdep: Move memalign-related functions to their own header

Move the various memalign-related functions out of osdep.h and into
their own header, which we include only where they are used.
While we're doing this, add some brief documentation comments.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20220226180723.1706285-10-peter.maydell@linaro.org

show more ...

Merge remote-tracking branch 'remotes/famz/tags/block-and-testing-pull-request' into staging

# gpg: Signature made Mon 17 Jul 2017 04:47:05 BST
# gpg: using RSA key 0xCA35624C6A9171C6

Merge remote-tracking branch 'remotes/famz/tags/block-and-testing-pull-request' into staging

# gpg: Signature made Mon 17 Jul 2017 04:47:05 BST
# gpg: using RSA key 0xCA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6

* remotes/famz/tags/block-and-testing-pull-request:
travis: add no-TCG build
docker.py: Improve subprocess exit code handling
docker.py: Drop infile parameter
docker: Don't enable networking as a side-effect of DEBUG=1
ssh: support I/O from any AioContext
sheepdog: add queue_lock
qed: protect table cache with CoMutex
qed: introduce bdrv_qed_init_state
block: invoke .bdrv_drain callback in coroutine context and from AioContext
qed: move tail of qed_aio_write_main to qed_aio_write_{cow, alloc}
vvfat: make it thread-safe
vpc: make it thread-safe
vdi: make it thread-safe
coroutine-lock: add qemu_co_rwlock_downgrade and qemu_co_rwlock_upgrade
qcow2: call CoQueue APIs under CoMutex

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

qed: protect table cache with CoMutex

This makes the driver thread-safe. The CoMutex is dropped temporarily
while accessing the data clusters or the backing file.

Signed-off-by: Paolo Bonzini <pbo

qed: protect table cache with CoMutex

This makes the driver thread-safe. The CoMutex is dropped temporarily
while accessing the data clusters or the backing file.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20170629132749.997-10-pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Wed 20 Jan 2016 15:37:57 GMT using RSA key ID C88F2FD6
# gpg: Good signature fr

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Wed 20 Jan 2016 15:37:57 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
iotests: Test that throttle values ranges
blockdev: Error out on negative throttling option values
vmdk: Create streamOptimized as version 3
qcow2: Make image inaccessible after failed qcow2_invalidate_cache()
qcow2: Fix BDRV_O_INACTIVE handling in qcow2_invalidate_cache()
qcow2: Implement .bdrv_inactivate
block: Inactivate BDS when migration completes
block: Rename BDRV_O_INCOMING to BDRV_O_INACTIVE
block: Fix error path in bdrv_invalidate_cache()
block: Assert no write requests under BDRV_O_INCOMING
qcow2: Write full header on image creation
qcow2: Write feature table only for v3 images
block: Clean up includes
qemu-iotests: Reduce racy output in 028
qemu-img: Speed up comparing empty/zero images
block/raw-posix: avoid bogus fixup for cylinders on DASD disks
block: Fix .bdrv_open flags

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

block: Clean up includes

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off

block: Clean up includes

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

Merge remote-tracking branch 'kwolf/for-anthony' into staging

* kwolf/for-anthony:
test-coroutine: add performance test for nesting
coroutine: adding configure option for sigaltstack coroutine b

Merge remote-tracking branch 'kwolf/for-anthony' into staging

* kwolf/for-anthony:
test-coroutine: add performance test for nesting
coroutine: adding configure option for sigaltstack coroutine backend
coroutine: adding configure choose mechanism for coroutine backend
coroutine: adding sigaltstack method (.c source)
qcow2: Reduce number of I/O requests
qcow2: Add qcow2_alloc_clusters_at()
qcow2: Factor out count_cow_clusters
qmp: convert blockdev-snapshot-sync to a wrapper around transactions
add mode field to blockdev-snapshot-sync transaction item
rename blockdev-group-snapshot-sync
qapi: complete implementation of unions
use QSIMPLEQ_FOREACH_SAFE when freeing list elements
Add 'make check-block'
make check: Add qemu-iotests subset
qemu-iotests: Mark some tests as quick
qcow2: Add error messages in qcow2_truncate
block: handle -EBUSY in bdrv_commit_all()
qcow2: Add some tracing
qed: do not evict in-use L2 table cache entries
Group snapshot: Fix format name for backing file

show more ...

qed: do not evict in-use L2 table cache entries

The L2 table cache reduces QED metadata reads that would be required
when translating LBAs to offsets into the image file. Since requests
execute in

qed: do not evict in-use L2 table cache entries

The L2 table cache reduces QED metadata reads that would be required
when translating LBAs to offsets into the image file. Since requests
execute in parallel it is possible to share an L2 table between multiple
requests.

There is a potential data corruption issue when an in-use L2 table is
evicted from the cache because the following situation occurs:

1. An allocating write performs an update to L2 table "A".

2. Another request needs L2 table "B" and causes table "A" to be
evicted.

3. A new read request needs L2 table "A" but it is not cached.

As a result the L2 update from #1 can overlap with the L2 fetch from #3.
We must avoid doing overlapping I/O requests here since the worst case
outcome is that the L2 fetch completes before the L2 update and yields
stale data. In that case we would effectively discard the L2 update and
lose data clusters!

Thanks to Benoît Canet <benoit.canet@gmail.com> for extensive testing
and debugging which lead to discovery of this bug.

Reported-by: Benoît Canet <benoit.canet@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Tested-by: Benoît Canet <benoit.canet@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

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>

qed: Table, L2 cache, and cluster functions

This patch adds code to look up data cluster offsets in the image via
the L1/L2 tables. The L2 tables are writethrough cached in memory for
performance (

qed: Table, L2 cache, and cluster functions

This patch adds code to look up data cluster offsets in the image via
the L1/L2 tables. The L2 tables are writethrough cached in memory for
performance (each read/write requires a lookup so it is essential to
cache the tables).

With cluster lookup code in place it is possible to implement
bdrv_is_allocated() to query the number of contiguous
allocated/unallocated clusters.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...