mirror of
https://github.com/mii443/qemu.git
synced 2025-08-24 16:09:37 +00:00
51e15194b0
Commits01ef8185b8amd24b36e9813updated the way that the maximum transfer length is calculated for patching block limits VPD page in an INQUIRY response. The same updates also need to be made for the case where the host device does not support the block limits VPD page at all and we emulate the whole page. Without this fix, on host block devices a maximum transfer length of (INT_MAX - sector_size) bytes is advertised to the guest, resulting in I/O errors when a request that exceeds the host limits is made by the guest. (Prior to commit24b36e9813, this code path would use the max_transfer value from the host instead of INT_MAX, but still miss the fix from01ef8185b8where max_transfer is also capped to max_iov host pages, so it would be less wrong, but still wrong.) Cc: qemu-stable@nongnu.org Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2096251 Fixes:01ef8185b8Fixes:24b36e9813Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20220822125320.48257-1-kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>