Daniel P. Berrangé ce14f24611 hw/dma/xlnx_csu_dma: skip automatic zero-init of large array ...

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

The 'buf' array will be fully initialized when data is copied.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20250610123709.835102-16-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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

..

bcm2835_dma.c

qom: Have class_init() take a const data argument

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

i8257.c

qom: Make InterfaceInfo[] uses const

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i82374.c

qom: Have class_init() take a const data argument

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

Kconfig

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meson.build

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omap_dma.c

hw/arm: Replace TABs for spaces in OMAP board and device code

2025-05-14 14:29:47 +01:00

pl080.c

qom: Have class_init() take a const data argument

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

pl330.c

qom: Have class_init() take a const data argument

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rc4030.c

qom: Have class_init() take a const data argument

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sifive_pdma.c

qom: Have class_init() take a const data argument

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soc_dma.c

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sparc32_dma.c

qom: Have class_init() take a const data argument

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trace-events

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trace.h

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xilinx_axidma.c

qom: Make InterfaceInfo[] uses const

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xlnx_csu_dma.c

hw/dma/xlnx_csu_dma: skip automatic zero-init of large array

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

xlnx_dpdma.c

qom: Have class_init() take a const data argument

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xlnx-zdma.c

qom: Have class_init() take a const data argument

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

xlnx-zynq-devcfg.c

qom: Have class_init() take a const data argument

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