use ranges_overlap() instead of open-coding the overlap check to improve
the readability of the code.
Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240722040742.11513-9-yaoxt.fnst@fujitsu.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
use ranges_overlap() instead of open-coding the overlap check to improve
the readability of the code.
Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240722040742.11513-5-yaoxt.fnst@fujitsu.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Just like range_overlaps_range(), use the returned bool value
to check whether 2 given ranges overlap.
Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240722040742.11513-2-yaoxt.fnst@fujitsu.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
The type of kernel_entry, kernel_low and kernel_high is uint64_t, cast
the pointer of this type to uint64_t* is useless.
Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240722091728.4334-2-yaoxt.fnst@fujitsu.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
The last register of this device is at offset 0x14 occupying 8 bits so
to cover it the mmio region needs to be 0x15 bytes long. Also correct
the name of the field storing this register value to match the
register name.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Fixes: 7abb479c7a ("PPC: E500: Add FSL I2C controller")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240721225506.B32704E6039@zero.eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Since commit 3c5f6114d9 ("qapi: remove "Example" doc section")
the "Example" section is not valid anymore.
It has been replaced by the "qmp-example" directive.
This was not detected earlier as firmware.json was not validated.
As this validation is about to be added, adapt firmware.json.
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Message-ID: <20240719-qapi-firmware-json-v6-3-c2e3de390b58@linutronix.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Only a small subset of all architectures supported by qemu make use of
firmware files. Introduce and use a new enum to represent this.
This also removes the dependency to machine.json from the global qapi
definitions.
Claim "Since: 3.0" for the new enum, because that's correct for most of
its members, and the members are what matters in the interface.
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240719-qapi-firmware-json-v6-2-c2e3de390b58@linutronix.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Only a small subset of all blockdev drivers make sense for firmware
images. Introduce and use a new enum to represent this.
This also reduces the dependency on firmware.json from the global qapi
definitions.
Claim "Since: 3.0" for the new enum, because that's correct for its
members, and the members are what matters in the interface.
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240719-qapi-firmware-json-v6-1-c2e3de390b58@linutronix.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20240718133312.10324-20-philmd@linaro.org>
When multiple QOM types are registered in the same file,
it is simpler to use the the DEFINE_TYPES() macro. Replace
the type_init() / type_register_static() combination.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20240718133312.10324-2-philmd@linaro.org>
Once initialised, QOM objects can be realized and
unrealized multiple times before being finalized.
Resources allocated in REALIZE must be deallocated
in an equivalent UNREALIZE handler.
Free the CPU array in loongson_ipi_unrealize()
instead of loongson_ipi_finalize().
Cc: qemu-stable@nongnu.org
Fixes: 5e90b8db38 ("hw/loongarch: Set iocsr address space per-board rather than percpu")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240723111405.14208-3-philmd@linaro.org>
Loongson IPI is only available in little-endian,
so use that to access the guest memory (in case
we run on a big-endian host).
Cc: qemu-stable@nongnu.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Fixes: f6783e3438 ("hw/loongarch: Add LoongArch ipi interrupt support")
[PMD: Extracted from bigger commit, added commit description]
Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Tested-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20240718133312.10324-3-philmd@linaro.org>
This piece of code can be shared by both IOTLB invalidation and
PASID-based IOTLB invalidation
No functional changes intended.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Message-ID: <20240718081636.879544-12-zhenzhong.duan@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This API is specific to TCG (already handled by hardware
accelerators), so restrict it with #ifdef'ry. Remove
unnecessary stubs.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240529155918.6221-1-philmd@linaro.org>
target/arm: Use set_helper_retaddr for dc_zva, sve and sme
target/ppc: Tidy dcbz helpers
target/ppc: Use set_helper_retaddr for dcbz
target/s390x: Use set_helper_retaddr in mem_helper.c
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Merge tag 'pull-tcg-20240723' of https://gitlab.com/rth7680/qemu into staging
accel/tcg: Export set/clear_helper_retaddr
target/arm: Use set_helper_retaddr for dc_zva, sve and sme
target/ppc: Tidy dcbz helpers
target/ppc: Use set_helper_retaddr for dcbz
target/s390x: Use set_helper_retaddr in mem_helper.c
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# gpg: Signature made Tue 23 Jul 2024 01:33:54 PM AEST
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]
* tag 'pull-tcg-20240723' of https://gitlab.com/rth7680/qemu:
target/riscv: Simplify probing in vext_ldff
target/s390x: Use set/clear_helper_retaddr in mem_helper.c
target/s390x: Use user_or_likely in access_memmove
target/s390x: Use user_or_likely in do_access_memset
target/ppc: Improve helper_dcbz for user-only
target/ppc: Merge helper_{dcbz,dcbzep}
target/ppc: Split out helper_dbczl for 970
target/ppc: Hoist dcbz_size out of dcbz_common
target/ppc/mem_helper.c: Remove a conditional from dcbz_common()
target/arm: Use set/clear_helper_retaddr in SVE and SME helpers
target/arm: Use set/clear_helper_retaddr in helper-a64.c
accel/tcg: Move {set,clear}_helper_retaddr to cpu_ldst.h
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The current pairing of tlb_vaddr_to_host with extra is either
inefficient (user-only, with page_check_range) or incorrect
(system, with probe_pages).
For proper non-fault behaviour, use probe_access_flags with
its nonfault parameter set to true.
Reviewed-by: Max Chou <max.chou@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Avoid a race condition with munmap in another thread.
For access_memset and access_memmove, manage the value
within the helper. For uses of access_{get,set}_byte,
manage the value across the for loops.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Invert the conditional, indent the block, and use the macro
that expands to true for user-only.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Eliminate the ifdef by using a predicate that is
always true with CONFIG_USER_ONLY.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Mark the reserve_addr check unlikely. Use tlb_vaddr_to_host
instead of probe_write, relying on the memset itself to test
for page writability. Use set/clear_helper_retaddr so that
we can properly unwind on segfault.
With this, a trivial loop around guest memset will no longer
spend nearly 25% of runtime within page_get_flags.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Merge the two and pass the mmu_idx directly from translation.
Swap the argument order in dcbz_common to avoid extra swaps.
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We can determine at translation time whether the insn is or
is not dbczl. We must retain a runtime check against the
HID5 register, but we can move that to a separate function
that never affects other ppc models.
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The 970 logic does not apply to dcbzep, which is an e500 insn.
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Instead of passing a bool and select a value within dcbz_common() let
the callers pass in the right value to avoid this conditional
statement. On PPC dcbz is often used to zero memory and some code uses
it a lot. This change improves the run time of a test case that copies
memory with a dcbz call in every iteration from 6.23 to 5.83 seconds.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20240622204833.5F7C74E6000@zero.eik.bme.hu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Avoid a race condition with munmap in another thread.
Use around blocks that exclusively use "host_fn".
Keep the blocks as small as possible, but without setting
and clearing for every operation on one page.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use these in helper_dc_dva and the FEAT_MOPS routines to
avoid a race condition with munmap in another thread.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use of these in helpers goes hand-in-hand with tlb_vaddr_to_host
and other probing functions.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* Fix crash that happens when introspecting scsi-block on older machine types
* s390x: filter deprecated properties based on model expansion type
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Merge tag 'pull-request-2024-07-22' of https://gitlab.com/thuth/qemu into staging
* Minor clean-ups and fixes for the qtests and Avocado tests
* Fix crash that happens when introspecting scsi-block on older machine types
* s390x: filter deprecated properties based on model expansion type
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# gpg: Signature made Mon 22 Jul 2024 09:57:55 PM AEST
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
* tag 'pull-request-2024-07-22' of https://gitlab.com/thuth/qemu:
target/s390x: filter deprecated properties based on model expansion type
tests: increase timeout per instance of bios-tables-test
qtest/fuzz: make range overlap check more readable
hw: Fix crash that happens when introspecting scsi-block on older machine types
tests/avocado/machine_aspeed.py: Increase timeout for TPM test
tests/avocado: Remove the remainders of the virtiofs_submounts test
tests/avocado/mem-addr-space-check: Remove unused "import signal"
tests/avocado: Move LinuxTest related code into a separate file
tests/avocado: Allow overwriting AVOCADO_SHOW env variable
tests/avocado/boot_xen.py: use class attribute
tests/avocado/boot_xen.py: unify tags
tests/avocado/boot_xen.py: merge base classes
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
If I use `-serial stdio` on Windows, after QEMU exits, the terminal
could not handle arrow keys and tab any more. Because stdio backend
on Windows sets console mode to virtual terminal input when starts,
but does not restore the old mode when finalize.
This small patch saves the old console mode and set it back.
Signed-off-by: Ziming Song <s.ziming@hotmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <ME3P282MB25488BE7C39BF0C35CD0DA5D8CA82@ME3P282MB2548.AUSP282.PROD.OUTLOOK.COM>
The type of req->cmd is NvmeCmd, cast the pointer of this type to
NvmeCmd* is useless.
Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Abort was not implemented previously, but we can implement it for AERs
and asynchrnously for I/O.
Signed-off-by: Ayush Mishra <ayush.m55@samsung.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Extend copy command to copy user data across different namespaces via
support for specifying a namespace for each source range
Signed-off-by: Arun Kumar <arun.kka@samsung.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Currently, there is no way to execute the query-cpu-model-expansion
command to retrieve a comprehenisve list of deprecated properties, as
the result is dependent per-model. To enable this, the expansion output
is modified as such:
When reporting a "full" CPU model, show the *entire* list of deprecated
properties regardless if they are supported on the model. A full
expansion outputs all known CPU model properties anyway, so it makes
sense to report all deprecated properties here too.
This allows management apps to query a single model (e.g. host) to
acquire the full list of deprecated properties.
Additionally, when reporting a "static" CPU model, the command will
only show deprecated properties that are a subset of the model's
*enabled* properties. This is more accurate than how the query was
handled before, which blindly reported deprecated properties that
were never otherwise introduced for certain models.
Acked-by: David Hildenbrand <david@redhat.com>
Suggested-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Collin Walling <walling@linux.ibm.com>
Message-ID: <20240719181741.35146-1-walling@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
CI often fails 'cross-i686-tci' job due to runner slowness
Log shows that test almost complete, with a few remaining
when bios-tables-test timeout hits:
19/270 qemu:qtest+qtest-aarch64 / qtest-aarch64/bios-tables-test
TIMEOUT 610.02s killed by signal 15 SIGTERM
...
stderr:
TAP parsing error: Too few tests run (expected 8, got 7)
At the same time overall job running time is only ~30 out of 1hr allowed.
Increase bios-tables-test instance timeout on 5min as a fix
for slow CI runners.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-ID: <20240716125930.620861-1-imammedo@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
use ranges_overlap() instead of open-coding the overlap check to improve
the readability of the code.
Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Message-ID: <20240722040742.11513-8-yaoxt.fnst@fujitsu.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
"make check SPEED=slow" is currently failing the device-introspect-test on
older machine types since introspecting "scsi-block" is causing an abort:
$ ./qemu-system-x86_64 -M pc-q35-8.0 -monitor stdio
QEMU 9.0.50 monitor - type 'help' for more information
(qemu) device_add scsi-block,help
Unexpected error in object_property_find_err() at
../../devel/qemu/qom/object.c:1357:
can't apply global scsi-disk-base.migrate-emulated-scsi-request=false:
Property 'scsi-block.migrate-emulated-scsi-request' not found
Aborted (core dumped)
The problem is that the compat code tries to change the
"migrate-emulated-scsi-request" property for all devices that are
derived from "scsi-block", but the property has only been added
to "scsi-hd" and "scsi-cd" via the DEFINE_SCSI_DISK_PROPERTIES macro.
Thus let's fix the problem by only changing the property on the devices
that really have this property.
Fixes: b4912afa5f ("scsi-disk: Fix crash for VM configured with USB CDROM after live migration")
Message-ID: <20240703090904.909720-1-thuth@redhat.com>
Acked-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
On some runners, test_arm_ast2600_evb_buildroot_tpm can take longer
than 90s to complete. Increase timeout for these.
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20240722085547.90650-1-clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The virtiofs_submounts test has been removed in commit 5da7701e2a
("virtiofsd: Remove test"), so we don't need this files anymore.
Message-ID: <20240718173125.489901-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The "signal" module is not used here, so we can remove this import
statement.
Message-ID: <20240719095408.33298-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Only some few tests are using the LinuxTest class. Move the related
code into a separate file so that this does not pollute the main
namespace.
Message-ID: <20240719095031.32814-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The 'app' level logging is useful, but sometimes we want
more, for example QEMU leverages the 'console' logging.
Allow overwriting AVOCADO_SHOW from environment, i.e.:
$ make check-avocado AVOCADO_SHOW='app,console'
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240719180211.48073-1-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The allocated memory to hold LBA ranges leaks in the nvme_dsm function. This
happens because the allocated memory for iocb->range is not freed in all
error handling paths.
Fix this by adding a free to ensure that the allocated memory is properly freed.
ASAN log:
==3075137==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 480 byte(s) in 6 object(s) allocated from:
#0 0x55f1f8a0eddd in malloc llvm/compiler-rt/lib/asan/asan_malloc_linux.cpp:129:3
#1 0x7f531e0f6738 in g_malloc (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x5e738)
#2 0x55f1faf1f091 in blk_aio_get block/block-backend.c:2583:12
#3 0x55f1f945c74b in nvme_dsm hw/nvme/ctrl.c:2609:30
#4 0x55f1f945831b in nvme_io_cmd hw/nvme/ctrl.c:4470:16
#5 0x55f1f94561b7 in nvme_process_sq hw/nvme/ctrl.c:7039:29
Cc: qemu-stable@nongnu.org
Fixes: d7d1474fd8 ("hw/nvme: reimplement dsm to allow cancellation")
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
The spice-vdagentd doesn't send capabilities again on host/client
disconnect (but when the session agent connects and sends a
GUEST_XORG_RESOLUTION message)
When the dbus client disconnects, vdagent_disconnect() is called to
reset the agent state. Capabilities must be negotiated again on
reconnection.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240717171541.201525-5-marcandre.lureau@redhat.com>
Since we reset the serial counters, peers should also be reset to be sync.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240717171541.201525-4-marcandre.lureau@redhat.com>
Place the trace when the function enters, with arg value.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240717171541.201525-3-marcandre.lureau@redhat.com>
Mouse cursors with 8 bit alpha were downsampled to 1-bit opacity maps by
turning alpha values of 255 into 1 and everything else into 0. This
means that mostly-opaque pixels ended up completely invisible.
This patch changes the behaviour so that only pixels with less than 50%
alpha (0-127) are treated as transparent when converted to 1-bit alpha.
This greatly improves the subjective appearance of anti-aliased mouse
cursors, such as those used by macOS, when using a front-end UI without
support for alpha-blended cursors, such as some VNC clients.
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20240624101040.82726-1-phil@philjordan.eu>
