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From: "Michael S. Tsirkin" <mst@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: virtualization@lists.linux-foundation.org,
	Jason Wang <jasowang@redhat.com>
Subject: [PATCH v2 00/24] virtio: config space endian-ness cleanup
Date: Mon, 3 Aug 2020 16:58:33 -0400	[thread overview]
Message-ID: <20200803205814.540410-1-mst@redhat.com> (raw)

Config space endian-ness is currently a mess: fields are
not tagged with the correct endian-ness so it's easy
to make mistakes like instanciating config space in
native endian-ness.

The following patches adding sparse tagging are currently in my tree.
Lightly tested.

As a follow-up, I plan to add new APIs that handle modern config space
in a more efficient way (bypassing the version check).

That is still TBD.

I also start with a version using gcc extensions, then switch
to _Generic. This is helpful for backports to older kernels/older
distros: _Generic patch can just be skipped.

Michael S. Tsirkin (24):
  virtio_balloon: fix sparse warning
  virtio_ring: sparse warning fixup
  virtio: allow __virtioXX, __leXX in config space
  virtio_9p: correct tags for config space fields
  virtio_balloon: correct tags for config space fields
  virtio_blk: correct tags for config space fields
  virtio_console: correct tags for config space fields
  virtio_crypto: correct tags for config space fields
  virtio_fs: correct tags for config space fields
  virtio_gpu: correct tags for config space fields
  virtio_input: correct tags for config space fields
  virtio_iommu: correct tags for config space fields
  virtio_mem: correct tags for config space fields
  virtio_net: correct tags for config space fields
  virtio_pmem: correct tags for config space fields
  virtio_scsi: correct tags for config space fields
  virtio_config: disallow native type fields
  mlxbf-tmfifo: sparse tags for config access
  vdpa: make sure set_features in invoked for legacy
  vhost/vdpa: switch to new helpers
  virtio_vdpa: legacy features handling
  vdpa_sim: fix endian-ness of config space
  virtio_config: cread/write cleanup
  virtio_config: rewrite using _Generic

 drivers/platform/mellanox/mlxbf-tmfifo.c |  13 +-
 drivers/scsi/virtio_scsi.c               |   4 +-
 drivers/vdpa/vdpa.c                      |   1 +
 drivers/vdpa/vdpa_sim/vdpa_sim.c         |  31 ++++-
 drivers/vhost/vdpa.c                     |   8 +-
 drivers/virtio/virtio_balloon.c          |   2 +-
 drivers/virtio/virtio_vdpa.c             |   9 +-
 include/linux/vdpa.h                     |  34 +++++
 include/linux/virtio_config.h            | 159 ++++++++++++++---------
 include/linux/virtio_ring.h              |  19 ++-
 include/uapi/linux/virtio_9p.h           |   4 +-
 include/uapi/linux/virtio_balloon.h      |  10 +-
 include/uapi/linux/virtio_blk.h          |  26 ++--
 include/uapi/linux/virtio_console.h      |   8 +-
 include/uapi/linux/virtio_crypto.h       |  26 ++--
 include/uapi/linux/virtio_fs.h           |   2 +-
 include/uapi/linux/virtio_gpu.h          |   8 +-
 include/uapi/linux/virtio_input.h        |  18 +--
 include/uapi/linux/virtio_iommu.h        |  12 +-
 include/uapi/linux/virtio_mem.h          |  14 +-
 include/uapi/linux/virtio_net.h          |   8 +-
 include/uapi/linux/virtio_pmem.h         |   4 +-
 include/uapi/linux/virtio_scsi.h         |  20 +--
 23 files changed, 270 insertions(+), 170 deletions(-)

-- 
MST


             reply	other threads:[~2020-08-03 20:58 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-03 20:58 Michael S. Tsirkin [this message]
2020-08-03 20:58 ` [PATCH v2 01/24] virtio_balloon: fix sparse warning Michael S. Tsirkin
2020-08-03 21:25   ` David Hildenbrand
2020-08-04 14:16   ` Cornelia Huck
2020-08-03 20:58 ` [PATCH v2 02/24] virtio_ring: sparse warning fixup Michael S. Tsirkin
2020-08-04 14:18   ` Cornelia Huck
2020-08-03 20:58 ` [PATCH v2 03/24] virtio: allow __virtioXX, __leXX in config space Michael S. Tsirkin
2020-08-04 14:23   ` Cornelia Huck
2020-08-04 14:28     ` Michael S. Tsirkin
2020-08-05  6:28   ` Jason Wang
2020-08-05 11:45     ` Michael S. Tsirkin
2020-08-06  3:37       ` Jason Wang
2020-08-06  5:58         ` Michael S. Tsirkin
2020-08-07  3:26           ` Jason Wang
2020-08-03 20:58 ` [PATCH v2 04/24] virtio_9p: correct tags for config space fields Michael S. Tsirkin
2020-08-04 14:25   ` Cornelia Huck
2020-08-03 20:58 ` [PATCH v2 05/24] virtio_balloon: " Michael S. Tsirkin
2020-08-03 21:26   ` David Hildenbrand
2020-08-04 14:26   ` Cornelia Huck
2020-08-03 20:58 ` [PATCH v2 06/24] virtio_blk: " Michael S. Tsirkin
2020-08-04 14:29   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 07/24] virtio_console: " Michael S. Tsirkin
2020-08-04 14:31   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 08/24] virtio_crypto: " Michael S. Tsirkin
2020-08-04 14:32   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 09/24] virtio_fs: " Michael S. Tsirkin
2020-08-04 13:36   ` Vivek Goyal
2020-08-04 14:33   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 10/24] virtio_gpu: " Michael S. Tsirkin
2020-08-04 14:34   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 11/24] virtio_input: " Michael S. Tsirkin
2020-08-04  6:01   ` Gerd Hoffmann
2020-08-04 14:35   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 12/24] virtio_iommu: " Michael S. Tsirkin
2020-08-04  8:00   ` Jean-Philippe Brucker
2020-08-04 14:36   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 13/24] virtio_mem: " Michael S. Tsirkin
2020-08-03 21:23   ` David Hildenbrand
2020-08-04 14:37   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 14/24] virtio_net: " Michael S. Tsirkin
2020-08-04 14:44   ` Cornelia Huck
2020-08-05 13:26     ` Michael S. Tsirkin
2020-08-03 20:59 ` [PATCH v2 15/24] virtio_pmem: " Michael S. Tsirkin
2020-08-04 14:46   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 16/24] virtio_scsi: " Michael S. Tsirkin
2020-08-04 14:48   ` Cornelia Huck
2020-08-03 20:59 ` [PATCH v2 17/24] virtio_config: disallow native type fields Michael S. Tsirkin
2020-08-04 14:50   ` Cornelia Huck
2020-08-05 13:29     ` Michael S. Tsirkin
2020-08-03 21:00 ` [PATCH v2 18/24] mlxbf-tmfifo: sparse tags for config access Michael S. Tsirkin
2020-08-04 14:56   ` Cornelia Huck
2020-08-05 13:29     ` Michael S. Tsirkin
2020-08-03 21:00 ` [PATCH v2 19/24] vdpa: make sure set_features in invoked for legacy Michael S. Tsirkin
2020-08-05  6:14   ` Jason Wang
2020-08-05 11:40     ` Michael S. Tsirkin
2020-08-06  3:23       ` Jason Wang
2020-08-06  5:53         ` Michael S. Tsirkin
2020-08-06  7:27           ` Jason Wang
2020-08-06 10:00             ` Michael S. Tsirkin
2020-08-07  3:00               ` Jason Wang
2020-08-03 21:00 ` [PATCH v2 20/24] vhost/vdpa: switch to new helpers Michael S. Tsirkin
2020-08-03 21:00 ` [PATCH v2 21/24] virtio_vdpa: legacy features handling Michael S. Tsirkin
2020-08-03 21:00 ` [PATCH v2 22/24] vdpa_sim: fix endian-ness of config space Michael S. Tsirkin
2020-08-05  6:21   ` Jason Wang
2020-08-05 11:44     ` Michael S. Tsirkin
2020-08-05 12:06     ` Michael S. Tsirkin
2020-08-06  3:23       ` Jason Wang
2020-08-03 21:00 ` [PATCH v2 23/24] virtio_config: cread/write cleanup Michael S. Tsirkin
2020-08-03 21:00 ` [PATCH v2 24/24] virtio_config: rewrite using _Generic Michael S. Tsirkin

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