sem in AppleGFXReadMemoryJob is an one-shot event so it can be converted
into QemuEvent, which is more specialized for such a use case.
Signed-off-by: Akihiko Odaki
---
hw/display/apple-gfx.m | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/hw/display/apple-gfx.m b/
thread_sync_sem is an one-shot event so it can be converted into
QemuEvent, which is more lightweight.
Signed-off-by: Akihiko Odaki
---
migration/migration.h| 4 ++--
migration/postcopy-ram.c | 10 +-
migration/savevm.c | 2 +-
3 files changed, 8 insertions(+), 8 deletions(-)
colo_exit_sem and colo_incoming_sem represent one-shot events so they
can be converted into QemuEvent, which is more lightweight.
Signed-off-by: Akihiko Odaki
---
migration/migration.h | 6 +++---
migration/colo.c | 20 ++--
2 files changed, 13 insertions(+), 13 deletions(-
Use the futex-based implementation of QemuEvent on Windows to
remove code duplication and remove the overhead of event object
construction and destruction.
Signed-off-by: Akihiko Odaki
---
include/qemu/thread-posix.h | 9 ---
include/qemu/thread-win32.h | 6 --
include/qemu/thread.h |
rp_pong_acks tells if it has ever received one pong. QemuEvent is
better suited for this usage because it represents a boolean rather
than integer and will not decrement with the wait operation.
pause_event can utilize qemu_event_reset() to discard events.
Signed-off-by: Akihiko Odaki
---
migra
qemu-thread used to abstract pthread primitives into futex for the
QemuEvent implementation of POSIX systems other than Linux. However,
this abstraction has one key difference: unlike futex, pthread
primitives require an explicit destruction, and it must be ordered after
wait and wake operations.
scripts/checkpatch.pl warns for __linux__ saying "architecture specific
defines should be avoided".
Signed-off-by: Akihiko Odaki
---
include/qemu/thread-posix.h | 2 +-
util/qemu-thread-posix.c| 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/qemu/thread-posi
futex(2) - Linux manual page
https://man7.org/linux/man-pages/man2/futex.2.html
> Note that a wake-up can also be caused by common futex usage patterns
> in unrelated code that happened to have previously used the futex
> word's memory location (e.g., typical futex-based implementations of
> Pthrea
off-by: Akihiko Odaki
---
Changes in v3:
- Fixed race between qemu_event_reset() and qemu_event_set().
- Prepared for spurious pthread_cond_wait() wakeups.
- Added patch "futex: Replace __linux__ with CONFIG_LINUX".
- Link to v2:
https://lore.kernel.org/qemu-devel/20250510-event-v2-0-7
This unlocks the futex-based implementation of QemuLockCnt to Windows.
Signed-off-by: Akihiko Odaki
---
include/qemu/lockcnt.h | 2 +-
util/lockcnt.c | 7 ---
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/include/qemu/lockcnt.h b/include/qemu/lockcnt.h
index f4b62a3f
Windows supports futex-like APIs since Windows 8 and Windows Server
2012.
Signed-off-by: Akihiko Odaki
---
meson.build | 2 ++
include/qemu/futex.h | 53 ++-
tests/unit/test-aio-multithread.c | 2 +-
util/lockcnt.c
On 2025/05/10 21:12, Dmitry Osipenko wrote:
On 5/10/25 07:52, Akihiko Odaki wrote:
On 2025/05/06 21:57, Alex Bennée wrote:
From: Dongwon Kim
This partially reverts commit 77bf310084dad38b3a2badf01766c659056f1cf2
which causes some guest display corruption when gtk-gl-area
is used for GTK rende
On 2025/05/11 0:02, Paolo Bonzini wrote:
On 5/10/25 10:51, Akihiko Odaki wrote:
Add special implementations of qemu_event_set() and qemu_event_wait()
using pthread primitives. qemu_event_wait() will ensure qemu_event_set()
finishes, and these functions will avoid complex barrier and atomic
opera
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/10.1 for any
user-visible changes.
signature.asc
Description: PGP signature
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/10.1 for any
user-visible changes.
signature.asc
Description: PGP signature
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/10.1 for any
user-visible changes.
signature.asc
Description: PGP signature
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/10.1 for any
user-visible changes.
signature.asc
Description: PGP signature
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/10.1 for any
user-visible changes.
signature.asc
Description: PGP signature
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/10.1 for any
user-visible changes.
signature.asc
Description: PGP signature
On Mai 07 2025, Richard Henderson wrote:
> +/* Convert the 3 digit decimal exponent to binary. */
> +exp = ((hi >> 24) & 0xf)
> ++ ((hi >> 20) & 0xf) * 10
> ++ ((hi >> 16) & 0xf) * 100;
This is backwards. An exponent of 123 is stored as 0x0123, not
0x0321.
> +
This patch fixes a stack-buffer-overflow bug in e1000_receive_iov().
When receiving a broken eth iov (only 1 iov and len < ETH_HLEN, 4 in
the crash sample), origin logic will continue by copy iov to min_buf.
The subsequent program will perform error vlan packet checking on
the buffer content that
Hi Marc-André,
I am WIP on a patch set including a successor of this one as well as
other fixes, doc and refactoring regarding scale handling. Hopefully
the patch set would make scale handling into good shape. I will send
the patch set out ASAP.
Best regards,
Weifeng
On Mon, 2025-04-28 at 15:23
Hi Marc-André,
I am WIP on a patch set including a successor of this one as well as
other fixes, doc and refactoring regarding scale handling. Hopefully
the patch set would make scale handling into good shape. I will send
the patch set out ASAP.
Best regards,
Weifeng
On Mon, 2025-04-28 at 15:23
On 5/10/25 10:51, Akihiko Odaki wrote:
Add special implementations of qemu_event_set() and qemu_event_wait()
using pthread primitives. qemu_event_wait() will ensure qemu_event_set()
finishes, and these functions will avoid complex barrier and atomic
operations.
Unfortunately not...
Signed-off
Add an 64-bit SPL build for qemu so we can test the standard passage
feature.
Include a binman definition so that SPL and U-Boot are in the same image.
This requires adding a proper devicetree file for qemu_arm. It is only
used for the SPL build.
Avoid using the QEMU devicetree in U-Boot proper,
Add an SPL build for qemu so we can test the standard passage feature.
Include a binman definition so that SPL and U-Boot are in the same image.
This requires adding a proper devicetree file for qemu_arm. It is only
used for the SPL build.
Avoid using the QEMU devicetree in U-Boot proper, so we c
On 5/10/25 07:52, Akihiko Odaki wrote:
> On 2025/05/06 21:57, Alex Bennée wrote:
>> From: Dongwon Kim
>>
>> This partially reverts commit 77bf310084dad38b3a2badf01766c659056f1cf2
>> which causes some guest display corruption when gtk-gl-area
>> is used for GTK rendering (e.g. Wayland Compositor) p
Daniel P. Berrangé writes:
> This removes the TARGET_I386 condition from the rtc-reset-reinjection
> command. This requires providing a QMP command stub for non-i386 target.
> This in turn requires moving the command out of misc-target.json, since
> that will trigger symbol poisoning errors when
PATCH 10 empties out and deletes qapi/machine-target.json. PATCH 04
empties out qapi/misc-target.json without deleting it. Missing:
* Delete qapi/misc-target.json
* Delete entry F: qapi/machine-target.json in MAINTAINERS
* Delete dead logic around qapi_specific_outputs in qapi/meson.build
The
colo_exit_sem and colo_incoming_sem represent one-shot events so they
can be converted into QemuEvent, which is more lightweight.
Signed-off-by: Akihiko Odaki
---
migration/migration.h | 6 +++---
migration/colo.c | 20 ++--
2 files changed, 13 insertions(+), 13 deletions(-
sem in AppleGFXReadMemoryJob is an one-shot event so it can be converted
into QemuEvent, which is more specialized for such a use case.
Signed-off-by: Akihiko Odaki
---
hw/display/apple-gfx.m | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/hw/display/apple-gfx.m b/
futex(2) - Linux manual page
https://man7.org/linux/man-pages/man2/futex.2.html
> Note that a wake-up can also be caused by common futex usage patterns
> in unrelated code that happened to have previously used the futex
> word's memory location (e.g., typical futex-based implementations of
> Pthrea
thread_sync_sem is an one-shot event so it can be converted into
QemuEvent, which is more lightweight.
Signed-off-by: Akihiko Odaki
---
migration/migration.h| 4 ++--
migration/postcopy-ram.c | 10 +-
migration/savevm.c | 2 +-
3 files changed, 8 insertions(+), 8 deletions(-)
Use the futex-based implementation of QemuEvent on Windows to
remove code duplication and remove the overhead of event object
construction and destruction.
Signed-off-by: Akihiko Odaki
---
include/qemu/thread-posix.h | 9 ---
include/qemu/thread-win32.h | 6 --
include/qemu/thread.h |
rp_pong_acks tells if it has ever received one pong. QemuEvent is
better suited for this usage because it represents a boolean rather
than integer and will not decrement with the wait operation.
pause_event can utilize qemu_event_reset() to discard events.
Signed-off-by: Akihiko Odaki
---
migra
In a recent discussion, Phil Dennis-Jordan pointed out a quirk in
QemuEvent destruction due to futex-like abstraction, which prevented
the usage of QemuEvent in new and existing code[1]. With some more
thoughts after this discussion, I also found other problem and room
of improvement in futex usage
This unlocks the futex-based implementation of QemuLockCnt to Windows.
Signed-off-by: Akihiko Odaki
---
include/qemu/lockcnt.h | 2 +-
util/lockcnt.c | 7 ---
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/include/qemu/lockcnt.h b/include/qemu/lockcnt.h
index f4b62a3f
qemu-thread used to abstract pthread primitives into futex for the
QemuEvent implementation of POSIX systems other than Linux. However,
this abstraction has one key difference: unlike futex, pthread
primitives require an explicit destruction, and it must be ordered after
wait and wake operations.
Windows supports futex-like APIs since Windows 8 and Windows Server
2012.
Signed-off-by: Akihiko Odaki
---
meson.build | 2 ++
include/qemu/futex.h | 52 ++-
tests/unit/test-aio-multithread.c | 2 +-
util/lockcnt.c
This patch implements the True Random Number Generator for the MAX78000 SOC
Signed-off-by: Jackson Donaldson
---
hw/arm/Kconfig | 1 +
hw/arm/max78000_soc.c | 9 ++-
hw/misc/Kconfig | 3 +
hw/misc/max78000_gcr.c | 3 +
hw/misc/max78000_
virtio_net_pre_load_queues() inspects vdev->guest_features to tell if
VIRTIO_NET_F_RSS or VIRTIO_NET_F_MQ is enabled to infer the required
number of queues. This works for VIRTIO_NET_F_MQ but it doesn't for
VIRTIO_NET_F_RSS because only the lowest 32 bits of vdev->guest_features
is set at the point
Daniel P. Berrangé writes:
> On Wed, May 07, 2025 at 04:14:39PM -0700, Pierrick Bouvier wrote:
>> Signed-off-by: Pierrick Bouvier
>> ---
>> qapi/machine-target.json | 84
>> qapi/misc-target.json| 48 ---
>> scripts/qapi/expr.py
This patch series implements basic support for the MAX78000FTHR machine
https://github.com/JacksonDonaldson/max78000Test
Contains instructions for building a test program against the MAX78000FTHR
as well as results of the test suite run on QEMU and hardware.
Jackson Donaldson (6):
MAX78000: Add
This patch implements the Global Control Register for the MAX78000 SOC
Signed-off-by: Jackson Donaldson
---
hw/arm/Kconfig | 1 +
hw/arm/max78000_soc.c | 9 +-
hw/misc/Kconfig| 3 +
hw/misc/max78000_gcr.c | 285 ++
This commit implements AES encryption/decryption functionality
for the MAX78000 SOC
Signed-off-by: Jackson Donaldson
---
hw/arm/Kconfig | 1 +
hw/arm/max78000_soc.c | 12 +-
hw/misc/Kconfig| 3 +
hw/misc/max78000_aes.c | 215 +
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