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cloud-hypervisor/block
Anatol Belski 81c075b317 block: Add virtio-blk DISCARD and WRITE_ZEROES support
Add VIRTIO_BLK_T_DISCARD and VIRTIO_BLK_T_WRITE_ZEROES request types.
Parse discard/write_zeroes descriptors (sector, num_sectors, flags),
convert to byte offsets, and call punch_hole/write_zeroes on the disk
backend. Mark as unsupported in sync mode.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2026-02-13 18:44:30 +00:00
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