Hello Stefan, Kevin, and everyone else,

This series fixes how QEMU reports and enforces the two constraints that a
zoned device places on a write to a sequential zone: the write granularity,
and the largest zone append that it accepts. It also fixes two bugs in the
zone append emulation in file-posix, one of which a guest can reach.

Most of it is preparation for Sam Li's zoned qcow2 series. The first two
patches are taken directly from there, as they are unrelated to qcow2.

Changes since v5:
-Picked up Stefan's Reviewed-by tags that he gave when reviewing v4.
 Patches that have changed significantly since v4 have had tags dropped
 (i.e. they will have neither Damien's nor Stefan's Reviewed-by tags).

Niklas Cassel (13):
  block: add a helper for the index of the zone an offset falls in
  block: add a helper to check if a zone is conventional
  hw/block: derive the zone write granularity from the block sizes
  virtio-blk: check the write granularity of writes to sequential zones
  hw/block: reject a zoned device that the block sizes cannot address
  block: reject zone appends that are not a multiple of the sector size
  block: reject a zone append that is larger than a zone
  file-posix: remove the zone append write granularity check
  virtio-blk: add a max-append-sectors property
  block: remove BlockLimits.max_append_sectors
  file-posix: reject a zone append past the device capacity
  file-posix: reject a zone append to a full or conventional zone
  block: do not use CoroutineIOCompletion to hold a return value

Sam Li (2):
  block: widen BlockLimits.zone_size to uint64_t
  virtio-blk: do not merge requests across a zone boundary

 block/block-backend.c             |  11 +++
 block/file-posix.c                |  59 +++++++-----
 block/io.c                        |  79 ++++++++++++----
 hw/block/block.c                  |  68 ++++++++++++++
 hw/block/virtio-blk.c             | 146 ++++++++++++++++++++++++++----
 include/block/block-io.h          |  14 +++
 include/block/block_int-common.h  |  19 +++-
 include/hw/block/block.h          |  14 +++
 include/hw/virtio/virtio-blk.h    |   1 +
 include/system/block-backend-io.h |   1 +
 10 files changed, 349 insertions(+), 63 deletions(-)


base-commit: 3b5d71cc3652fa7f5ecc449f05dae3ead2b718d7
-- 
2.55.0