u-boot.git/drivers/virtio, branch v2023.01 Unnamed repository; edit this file 'description' to name the repository. dm: treewide: Do not opencode uclass_probe_all() 2022-10-18T03:17:12+00:00 Michal Suchanek msuchanek@suse.de 2022-10-12T19:57:51+00:00 c0648b7b9dc10ed49e2d4b1bedaa5ccd17e23fb3 We already have a function for probing all devices of a specific class, use it. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org> 
We already have a function for probing all devices of a specific class,
use it.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
blk: Rename if_type to uclass_id 2022-09-25T14:30:05+00:00 Simon Glass sjg@chromium.org 2022-09-17T15:00:09+00:00 8149b1500d805b56f2e3e42fb31c5554a2011745 Use the word 'uclass' instead of 'if_type' to complete the conversion. Signed-off-by: Simon Glass <sjg@chromium.org> 
Use the word 'uclass' instead of 'if_type' to complete the conversion.

Signed-off-by: Simon Glass <sjg@chromium.org>
blk: Switch over to using uclass IDs 2022-09-16T15:05:16+00:00 Simon Glass sjg@chromium.org 2022-08-12T01:34:59+00:00 e33a5c6be55e7c012b2851f9bdf90e7f607e72bf We currently have an if_type (interface type) and a uclass id. These are closely related and we don't need to have both. Drop the if_type values and use the uclass ones instead. Maintain the existing, subtle, one-way conversion between UCLASS_USB and UCLASS_MASS_STORAGE for now, and add a comment. Signed-off-by: Simon Glass <sjg@chromium.org> 
We currently have an if_type (interface type) and a uclass id. These are
closely related and we don't need to have both.

Drop the if_type values and use the uclass ones instead.

Maintain the existing, subtle, one-way conversion between UCLASS_USB and
UCLASS_MASS_STORAGE for now, and add a comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
blk: Enable CONFIG_BLK for all media 2022-09-16T15:05:00+00:00 Simon Glass sjg@chromium.org 2022-08-12T01:34:41+00:00 6b03b9d5b7b9efee81bdb01d17c291107818371e Enable this option on all boards which support block devices. Drop the related depencies on BLK since these are not needed anymore. Disable BLOCK_CACHE on M5253DEMO as this causes a build error. Signed-off-by: Simon Glass <sjg@chromium.org> 
Enable this option on all boards which support block devices. Drop the
related depencies on BLK since these are not needed anymore.

Disable BLOCK_CACHE on M5253DEMO as this causes a build error.

Signed-off-by: Simon Glass <sjg@chromium.org>
virtio: pci: fix bug of virtio_pci_map_capability 2022-09-15T13:55:30+00:00 Xiang W wxjstz@126.com 2022-08-28T23:53:15+00:00 04dd7c8e5624ee971004a6b310c2e7d958a0018c The bar of the structure virtio_pci_cap is the index, and each base address occupies 4 bytes, so it needs to be multiplied by 4. This patch fixes a bug reported by Felix Yan https://lists.denx.de/pipermail/u-boot/2022-August/492779.html Signed-off-by: Xiang W <wxjstz@126.com> Tested-by: Felix Yan <felixonmars@archlinux.org> 
The bar of the structure virtio_pci_cap is the index, and each base
address occupies 4 bytes, so it needs to be multiplied by 4.

This patch fixes a bug reported by Felix Yan
https://lists.denx.de/pipermail/u-boot/2022-August/492779.html

Signed-off-by: Xiang W <wxjstz@126.com>
Tested-by: Felix Yan <felixonmars@archlinux.org>
virtio: rng: Check length before copying 2022-06-08T13:24:04+00:00 Andrew Scull ascull@google.com 2022-05-16T10:41:39+00:00 43937a4f5e411b3a82014fe0fa78ef4de90b11c2 Check the length of data written by the device is consistent with the size of the buffers to avoid out-of-bounds memory accesses in case values aren't consistent. Signed-off-by: Andrew Scull <ascull@google.com> Cc: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org> 
Check the length of data written by the device is consistent with the
size of the buffers to avoid out-of-bounds memory accesses in case
values aren't consistent.

Signed-off-by: Andrew Scull <ascull@google.com>
Cc: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
virtio: sandbox: Bind RNG rather than block device 2022-06-08T13:24:04+00:00 Andrew Scull ascull@google.com 2022-05-16T10:41:37+00:00 acd3b27a6564b94ffd2d4cf0c2726816bc1bffc3 The virtio-rng driver is extremely simple, making it suitable for testing more of the virtio uclass logic. Have the sandbox driver bind the virtio-rng driver rather than the virtio-blk driver so it can be used in tests. Signed-off-by: Andrew Scull <ascull@google.com> Reviewed-by: Simon Glass <sjg@chromium.org> 
The virtio-rng driver is extremely simple, making it suitable for
testing more of the virtio uclass logic. Have the sandbox driver bind
the virtio-rng driver rather than the virtio-blk driver so it can be
used in tests.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
virtio: sandbox: Fix device features bitfield 2022-06-08T13:24:03+00:00 Andrew Scull ascull@google.com 2022-05-16T10:41:34+00:00 1674b6c4d820a4139c406d673a3319f785503a5d The virtio sandbox transport was setting the device features value to the bit index rather than shifting a bit to the right index. Fix this using the bit manipulation macros. Signed-off-by: Andrew Scull <ascull@google.com> Reviewed-by: Simon Glass <sjg@chromium.org> 
The virtio sandbox transport was setting the device features value to
the bit index rather than shifting a bit to the right index. Fix this
using the bit manipulation macros.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
virtio_ring: Check used descriptors are chain heads 2022-06-08T13:24:03+00:00 Andrew Scull ascull@google.com 2022-05-16T10:41:32+00:00 fbef3f53d4a1ccdcbec46c923c9d208d6cbb50aa When the device returns used buffers, it should refer to the descriptor that is the head of the descriptor chain for that buffer. Confirm this to be the case by tracking the head of descriptor chains that have been made available to the device. Signed-off-by: Andrew Scull <ascull@google.com> Reviewed-by: Simon Glass <sjg@chromium.org> 
When the device returns used buffers, it should refer to the descriptor
that is the head of the descriptor chain for that buffer. Confirm this
to be the case by tracking the head of descriptor chains that have been
made available to the device.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
virtio_ring: Maintain a shadow copy of descriptors 2022-06-08T13:24:03+00:00 Andrew Scull ascull@google.com 2022-05-16T10:41:31+00:00 10a14536366350fdd2d14af1981d9e3d8cb3c524 The shared descriptors should only be written by the guest driver, however, the device is still able to overwrite and corrupt them. Maintain a private shadow copy of the descriptors for the driver to use for state tracking, removing the need to read from the shared descriptors. Signed-off-by: Andrew Scull <ascull@google.com> Reviewed-by: Simon Glass <sjg@chromium.org> 
The shared descriptors should only be written by the guest driver,
however, the device is still able to overwrite and corrupt them.
Maintain a private shadow copy of the descriptors for the driver to
use for state tracking, removing the need to read from the shared
descriptors.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>