Anatol Belski a7fefb63dd virtio-devices: block: Populate discard and write zeroes config ...

When VIRTIO_BLK_F_DISCARD or VIRTIO_BLK_F_WRITE_ZEROES features
are advertised, the virtio spec v1.2, sections 5.2.4 and
5.2.6.1, requires the corresponding VirtioBlockConfig fields
to contain valid, non zero values. Leaving them at zero causes
strictly behaved drivers to either reject the features or crash.

Populate max_discard_sectors, max_discard_seg,
discard_sector_alignment, max_write_zeroes_sectors,
max_write_zeroes_seg and write_zeroes_may_unmap after
feature advertisement so drivers can safely negotiate
these features.

Fixes: #7849

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>

2026-03-16 22:30:23 +00:00

..

src

virtio-devices: block: Populate discard and write zeroes config

2026-03-16 22:30:23 +00:00

build.rs

build: Add "fuzzing" as a valid cfg(..) attribute

2024-05-08 08:10:28 +00:00

Cargo.toml

misc: make MSRV workspace-wide for cloud-hypervisor dependencies

2026-03-13 01:30:25 +00:00