linux.git/include/xen/interface/io, branch v6.6.132

xen: sync xs_wire.h header with upstream xen

2022-05-19T12:44:05+00:00

Sync the xs_wire.h header file in Linux with the one in Xen.

Signed-off-by: Stefano Stabellini 
Reviewed-by: Boris Ostrovsky 
Link: https://lore.kernel.org/r/20220513211938.719341-1-sstabellini@kernel.org
Signed-off-by: Juergen Gross

xen: update ring.h

2022-05-19T12:21:53+00:00

Update include/xen/interface/io/ring.h to its newest version.

Switch the two improper use cases of RING_HAS_UNCONSUMED_RESPONSES() to
XEN_RING_NR_UNCONSUMED_RESPONSES() in order to avoid the nasty
XEN_RING_HAS_UNCONSUMED_IS_BOOL #define.

Signed-off-by: Juergen Gross 
Reviewed-by: Boris Ostrovsky 
Signed-off-by: Juergen Gross

xen: update vscsiif.h

2022-05-19T12:02:40+00:00

Update include/xen/interface/io/vscsiif.h to its newest version.

Signed-off-by: Juergen Gross 
Reviewed-by: Boris Ostrovsky 
Link: https://lore.kernel.org/r/20220428075323.12853-2-jgross@suse.com
Signed-off-by: Juergen Gross

usb: Add Xen pvUSB protocol description

2021-12-13T13:58:31+00:00

Add the definition of pvUSB protocol used between the pvUSB frontend in
a Xen domU and the pvUSB backend in a Xen driver domain (usually Dom0).

This header was originally provided by Fujitsu for Xen based on Linux
2.6.18.

Changes are:
- adapt to Linux kernel style guide
- use Xen namespace
- add lots of comments
- don't use kernel internal defines

Reviewed-by: Boris Ostrovsky 
Signed-off-by: Juergen Gross 
Link: https://lore.kernel.org/r/20211123132048.5335-2-jgross@suse.com
Signed-off-by: Greg Kroah-Hartman

xen: fix wrong SPDX headers of Xen related headers

2021-11-02T12:45:44+00:00

Commit b24413180f5600 ("License cleanup: add SPDX GPL-2.0 license
identifier to files with no license") was meant to do a tree-wide
cleanup for files without any license information by adding a SPDX
GPL-2.0 line to them.

Unfortunately this was applied even to several Xen-related headers
which have been originally under the MIT license, but obviously have
been copied to the Linux tree from the Xen project without keeping the
license boiler plate as required.

Correct that by changing the license of those files back to "MIT".

Some files still contain the MIT license text. Replace that by the
related SPDX line.

Signed-off-by: Juergen Gross 
Reviewed-by: Boris Ostrovsky 
Link: https://lore.kernel.org/r/20211015143312.29900-1-jgross@suse.com
Signed-off-by: Boris Ostrovsky

xen: sync include/xen/interface/io/ring.h with Xen's newest version

2021-07-05T07:49:45+00:00

Sync include/xen/interface/io/ring.h with Xen's newest version in
order to get the RING_COPY_RESPONSE() and RING_RESPONSE_PROD_OVERFLOW()
macros.

Note that this will correct the wrong license info by adding the
missing original copyright notice.

Signed-off-by: Juergen Gross

treewide: remove editor modelines and cruft

2021-05-07T07:26:34+00:00

The section "19) Editor modelines and other cruft" in
Documentation/process/coding-style.rst clearly says, "Do not include any
of these in source files."

I recently receive a patch to explicitly add a new one.

Let's do treewide cleanups, otherwise some people follow the existing code
and attempt to upstream their favoriate editor setups.

It is even nicer if scripts/checkpatch.pl can check it.

If we like to impose coding style in an editor-independent manner, I think
editorconfig (patch [1]) is a saner solution.

[1] https://lore.kernel.org/lkml/20200703073143.423557-1-danny@kdrag0n.dev/

Link: https://lkml.kernel.org/r/20210324054457.1477489-1-masahiroy@kernel.org
Signed-off-by: Masahiro Yamada 
Acked-by: Geert Uytterhoeven 
Reviewed-by: Miguel Ojeda 	[auxdisplay]
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge tag 'for-linus-5.9-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

2020-08-14T20:34:37+00:00

Pull more xen updates from Juergen Gross:

 - Remove support for running as 32-bit Xen PV-guest.

   32-bit PV guests are rarely used, are lacking security fixes for
   Meltdown, and can be easily replaced by PVH mode. Another series for
   doing more cleanup will follow soon (removal of 32-bit-only pvops
   functionality).

 - Fixes and additional features for the Xen display frontend driver.

* tag 'for-linus-5.9-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  drm/xen-front: Pass dumb buffer data offset to the backend
  xen: Sync up with the canonical protocol definition in Xen
  drm/xen-front: Add YUYV to supported formats
  drm/xen-front: Fix misused IS_ERR_OR_NULL checks
  xen/gntdev: Fix dmabuf import with non-zero sgt offset
  x86/xen: drop tests for highmem in pv code
  x86/xen: eliminate xen-asm_64.S
  x86/xen: remove 32-bit Xen PV guest support

xen: Sync up with the canonical protocol definition in Xen

2020-08-13T10:50:28+00:00

This is the sync up with the canonical definition of the
display protocol in Xen.

1. Add protocol version as an integer

Version string, which is in fact an integer, is hard to handle in the
code that supports different protocol versions. To simplify that
also add the version as an integer.

2. Pass buffer offset with XENDISPL_OP_DBUF_CREATE

There are cases when display data buffer is created with non-zero
offset to the data start. Handle such cases and provide that offset
while creating a display buffer.

3. Add XENDISPL_OP_GET_EDID command

Add an optional request for reading Extended Display Identification
Data (EDID) structure which allows better configuration of the
display connectors over the configuration set in XenStore.
With this change connectors may have multiple resolutions defined
with respect to detailed timing definitions and additional properties
normally provided by displays.

If this request is not supported by the backend then visible area
is defined by the relevant XenStore's "resolution" property.

If backend provides extended display identification data (EDID) with
XENDISPL_OP_GET_EDID request then EDID values must take precedence
over the resolutions defined in XenStore.

4. Bump protocol version to 2.

Signed-off-by: Oleksandr Andrushchenko 
Reviewed-by: Juergen Gross 
Link: https://lore.kernel.org/r/20200813062113.11030-5-andr2000@gmail.com
Signed-off-by: Juergen Gross

xen: netif.h: add a new extra type for XDP

2020-07-01T22:25:14+00:00

The patch adds a new extra type to be able to diffirentiate
between RX responses on xen-netfront side with the adjusted offset
required for XDP processing.

The offset value from a guest is passed via xenstore.

Signed-off-by: Denis Kirjanov 
Signed-off-by: David S. Miller