Daniel P. Berrangé bb71d9fe14 hw/audio/via-ac97: skip automatic zero-init of large array ...

The 'out_cb' method has a 4k byte array used for copying data
between the audio backend and device. Skip the automatic zero-init
of this array to eliminate the performance overhead in the I/O hot
path.

The 'tmpbuf' array will be fully initialized when reading data from
device memory.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20250610123709.835102-14-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

2025-06-12 13:40:15 -04:00

..

ac97.c

hw/audio/ac97: skip automatic zero-init of large arrays

2025-06-12 13:39:08 -04:00

ac97.h

…

adlib.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

asc.c

hw/audio/asc: replace g_malloc0() with g_malloc()

2025-05-25 11:28:28 +02:00

cs4231.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

cs4231a.c

hw/audio/cs4231a: skip automatic zero-init of large arrays

2025-06-12 13:39:08 -04:00

es1370.c

hw/audio/es1370: skip automatic zero-init of large array

2025-06-12 13:39:08 -04:00

fmopl.c

…

fmopl.h

…

gus.c

hw/audio/gus: skip automatic zero-init of large array

2025-06-12 13:39:08 -04:00

gusemu_hal.c

…

gusemu_mixer.c

…

gusemu.h

…

gustate.h

…

hda-codec-common.h

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hda-codec.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

intel-hda-defs.h

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intel-hda.c

qom: Make InterfaceInfo[] uses const

2025-04-25 17:00:41 +02:00

intel-hda.h

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Kconfig

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lm4549.c

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lm4549.h

…

marvell_88w8618.c

hw/audio/marvell_88w8618: skip automatic zero-init of large array

2025-06-12 13:39:18 -04:00

meson.build

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pcspk.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

pl041.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

pl041.h

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pl041.hx

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sb16.c

hw/audio/sb16: skip automatic zero-init of large array

2025-06-12 13:40:15 -04:00

soundhw.c

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trace-events

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trace.h

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via-ac97.c

hw/audio/via-ac97: skip automatic zero-init of large array

2025-06-12 13:40:15 -04:00

virtio-snd-pci.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

virtio-snd.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

wm8750.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00