The ISI module on i.MX91 is reused from i.MX93 and implements one channel
and one camera input which only can be connected to parallel camera input.
So needn't to select camera source like i.MX93 in gasket ops.
Signed-off-by: Alice Yuan <alice.yuan@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Guoniu Zhou <guoniu.zhou@nxp.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patch.msgid.link/20250905-isi_imx93-v2-1-37db5f768c57@nxp.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Add a RK3288 compatible for a version of the Rockchip VDEC IP that only
support HEVC decoding.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Diederik de Haas <didi.debian@cknow.org> # Rock64, RockPro64, Quartz64-B, NanoPi R5S
Tested-by: Detlev Casanova <detlev.casanova@collabora.com> # RK3399
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Switch compatible from a const to an enum to accommodate both the vd55g1
and the vd65g4, which is the color variant.
Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Mention include/dt-bindings/media/video-interfaces.h in descriptions to
help avoid use hardcode in dts.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Convert nxp,tda1997x.txt to yaml format
Additional changes:
- update audio width to 8, 16, 24, 32.
- keep one example only.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Convert ti,tvp5150.txt to yaml format.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: David Heidelberg <david@ixit.cz>
[Sakari Ailus: Align the endpoint properties to the right column.]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
* 'media-uapi' of git://git.lwn.net/linux: (23 commits)
docs: media: dvb: fix dmx.h.rst.exceptions
docs: media: dvb: headers: warn about broken cross references
docs: media: dmx_types: place kerneldoc at the right namespace
docs: cec: show broken xrefs and show TOC instead of cec.h content
docs: cec: cec.h.rst.exceptions: fix broken references from cec.h
media: docs: add some C domain missing references
media: docs: videodev2.h.rst.exceptions: ignore struct __kernel_v4l2_timeval
media: docs: add a missing reference for VIDIOC_QUERY_CTRL
docs: media: videodev2.h.rst.exceptions: fix namespace on refs
docs: media: add missing c namespace to V4L headers
docs: kernel_include.py: use get_close_matches() to propose alternatives
docs: media: mediactl: use TOC instead of file contents
docs: media: rc: use TOC instead of file contents for LIRC header
docs: media: dvb: enable warnings for most headers
docs: media: dvb: use TOC instead of file contents at headers
tools: docs: parse_data_structs.py: accept more reftypes
tools: docs: parse_data_structs.py: add namespace support
tools: docs: parse_data_structs.py: get rid of process_exceptions()
tools: docs: parse_data_structs: make process_exceptions two stages
docs: kernel_include.py: propose alternatives
...
There are lots of broken links on dmx. Those are mostly linked
to namespace handling.
Yet, some symbols were pointed to the wrong locations, and there
are some definitions that aren't needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <b2acf243771529daa925afddd2b68d07d7bbb164.1759329363.git.mchehab+huawei@kernel.org>
The DVB documentation is using DTV.dmx for all demux symbols.
Use such domain for kernel-doc documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <27fcc036fb5c80bda8116029e1964ad229208095.1759329363.git.mchehab+huawei@kernel.org>
Enable xref broken warnings. While here, change the output to
only show cross-references, as there's no need to show the entire cec.h
header at the docs.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <c587872ca3685213d9f8e88277404c9e253633df.1759329363.git.mchehab+huawei@kernel.org>
All references there belong to CEC namespace.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <dd1270dd5d91538cdfb0b087127c53a9f4ba7885.1759329363.git.mchehab+huawei@kernel.org>
Some enum/struct fields don't contain C domain references.
Add them to avoid broken xrefs.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <c9b036938197f1dd5bc93f5c5be0245bd9e5d1ee.1759329363.git.mchehab+huawei@kernel.org>
This is an ancillary struct used for year-2038 compat logic.
It is not meant to be used directly on userspace.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <a6a0dc7366b1a5d7184b8f7d4ba27689051a1f6a.1759329363.git.mchehab+huawei@kernel.org>
This one is missing its c:macro definition.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <46f86be6ace28abe83ea9ce6fa6138e40185a23a.1759329363.git.mchehab+huawei@kernel.org>
Media uses V4L domain, but the replace rules are not considering
it.
Fix them.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <927f9c19d90b62ffda950cdac9bba23c2ca09f53.1759329363.git.mchehab+huawei@kernel.org>
Media references belong to V4L namespace. Fix a lot of broken
links when including videodev2.h and probably fixing several
other broken cross-references between different files inside
media docs.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <b69fc5bd43da7d326b9f4720df59388088c64065.1759329363.git.mchehab+huawei@kernel.org>
Improve the suggestions algorithm by using get_close_matches() if
no suggestions with the same name are found. As we're now building
a dict, when the name is identical, but on a different domain,
the search is O(1), making it a lot faster.
The get_close_matches is also fast, as there is just one loop,
instead of 3.
This can be useful to detect typos on references, with could
be the base of a futuere extension that will handle ref unmatches
for the entire build, allowing someone to find typos and fix them.
As difflib and get_close_matches are there since the early
Python 3.x days, we don't need to handle any extra dependencies
to use it.
We're keeping the default values for the search, e.g. n=3, cutoff=0.6.
With that, we now have things like:
$ make SPHINXDIRS="userspace-api/media" htmldocs
...
include/uapi/linux/videodev2.h:199: WARNING: Invalid xref: c:type:`v4l2_memory`. Possible alternatives:
c:type:`v4l2_meta_format` (from v4l/dev-meta)
c:type:`v4l2_rect` (from v4l/dev-overlay)
c:type:`v4l2_area` (from v4l/ext-ctrls-image-source) [ref.missing]
...
include/uapi/linux/videodev2.h:1985: WARNING: Invalid xref: c:type:`V4L.v4l2_queryctrl`. Possible alternatives:
std🏷️`v4l2-queryctrl` (from v4l/vidioc-queryctrl)
std🏷️`v4l2-query-ext-ctrl` (from v4l/vidioc-queryctrl)
At the first example, it was not a typo, but a symbol that doesn't
seem to be properly documented. The second example points to
v4l2-queryctrl, which is a close match for the symbol.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <7365feb74cbdd6b982c87baf5863360ab98cf727.1759329363.git.mchehab+huawei@kernel.org>
All we wanted were to have a way to link the comprehensive
documentation with the actual symbols parsed from the header
file, as this helps to identify any broken references.
Use the new :toc: flag for media controller and enable warnings.
Here, we need to adjust the exceptions file to setup the C
namespace accordingly.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <5c8a87be712397563fc8ca914c3d92fe675e4071.1759329363.git.mchehab+huawei@kernel.org>
All we wanted were to have a way to link the comprehensive
documentation with the actual symbols parsed from the header
file, as this helps to identify any broken references.
Use the new :toc: flag for LIRC and enable warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <94dc601b4777ca544489ffc6cef9a2da5fe28e0e.1759329363.git.mchehab+huawei@kernel.org>
Except for two exception rules and dmx.h, the other files
are already handling properly cross references.
Fix the two exception rules for frontend.h, as those are
false-positives:
include/uapi/linux/dvb/frontend.h:959: WARNING: can't link to: c:type:: FE_GET_PROPERTY
include/uapi/linux/dvb/frontend.h:933: WARNING: can't link to: c:func:: FE_SET_FRONTEND_TUNE_MODE
The dmx.h are actual issues that will require an extra
patch to fill gaps.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <9ae6556ebd47de4f066a149ab0bbe7ce27acf2c4.1759329363.git.mchehab+huawei@kernel.org>
All we wanted were to have a way to link the comprehensive
documentation with the actual symbols parsed from the header
file, as this helps to identify any broken references.
Use the new :toc: flag for DVB.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <dbe95d83ae2117ed532fda423fd1c1d9906b7a19.1759329363.git.mchehab+huawei@kernel.org>
Add an extra parameter to parse_file to make it handle exceptions
internally, cleaning up the API.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <8575bbc94ff706aa7e7cc3a188399ca17a3169e6.1759329363.git.mchehab+huawei@kernel.org>
Specially when using c::namespace, it is not hard to break
a reference by forgetting to add a domain. Also, different
cases and using "-"/"_" the wrong way are typical cases that
people often gets wrong.
We might use a more complex logic here to also check for typos,
but let's keep it plain, simple.
This is enough to get thos exeptions from media controller:
.../include/uapi/linux/media.h:26: WARNING: Invalid xref: c:type:`media_device_info`. Possible alternatives:
c:type:`MC.media_device_info` (from mediactl/media-ioc-device-info)
.../include/uapi/linux/media.h:149: WARNING: Invalid xref: c:type:`media_entity_desc`. Possible alternatives:
c:type:`MC.media_entity_desc` (from mediactl/media-ioc-enum-entities)
.../include/uapi/linux/media.h:228: WARNING: Invalid xref: c:type:`media_link_desc`. Possible alternatives:
c:type:`MC.media_link_desc` (from mediactl/media-ioc-enum-links)
.../include/uapi/linux/media.h:235: WARNING: Invalid xref: c:type:`media_links_enum`. Possible alternatives:
c:type:`MC.media_links_enum` (from mediactl/media-ioc-enum-links)
.../include/uapi/linux/media.h:212: WARNING: Invalid xref: c:type:`media_pad_desc`. Possible alternatives:
c:type:`MC.media_pad_desc` (from mediactl/media-ioc-enum-links)
.../include/uapi/linux/media.h:298: WARNING: Invalid xref: c:type:`media_v2_entity`. Possible alternatives:
c:type:`MC.media_v2_entity` (from mediactl/media-ioc-g-topology)
.../include/uapi/linux/media.h:312: WARNING: Invalid xref: c:type:`media_v2_interface`. Possible alternatives:
c:type:`MC.media_v2_interface` (from mediactl/media-ioc-g-topology)
.../include/uapi/linux/media.h:307: WARNING: Invalid xref: c:type:`media_v2_intf_devnode`. Possible alternatives:
c:type:`MC.media_v2_intf_devnode` (from mediactl/media-ioc-g-topology)
.../include/uapi/linux/media.h:341: WARNING: Invalid xref: c:type:`media_v2_link`. Possible alternatives:
c:type:`MC.media_v2_link` (from mediactl/media-ioc-g-topology)
.../include/uapi/linux/media.h:333: WARNING: Invalid xref: c:type:`media_v2_pad`. Possible alternatives:
c:type:`MC.media_v2_pad` (from mediactl/media-ioc-g-topology)
.../include/uapi/linux/media.h:349: WARNING: Invalid xref: c:type:`media_v2_topology`. Possible alternatives:
c:type:`MC.media_v2_topology` (from mediactl/media-ioc-g-topology)
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <4c75d277e950e619ea00ba2dea336853a4aac976.1759329363.git.mchehab+huawei@kernel.org>
On TOC output, we need to embeed line numbers with ViewList.
Change the parse class to produce a line-number parsed result,
and adjust the output accordingly.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <74eed96e32f79eaaef7a99ffe7c3224fed369c27.1759329363.git.mchehab+huawei@kernel.org>
Shreeya no longer works at Collabora, set Dmitry as maintainer of
the Synopsys HDMI RX binding.
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
emulator in favor of int3_emulate_jcc() which is written in C
- Replace KVM fastops with C-based stubs which avoids problems with the
fastop infra related to latter not adhering to the C ABI due to their
special calling convention and, more importantly, bypassing compiler
control-flow integrity checking because they're written in asm
- Remove wrongly used static branches and other ugliness accumulated
over time in hyperv's hypercall implementation with a proper static
function call to the correct hypervisor call variant
- Add some fixes and modifications to allow running FRED-enabled kernels
in KVM even on non-FRED hardware
- Add kCFI improvements like validating indirect calls and prepare for
enabling kCFI with GCC. Add cmdline params documentation and other
code cleanups
- Use the single-byte 0xd6 insn as the official #UD single-byte
undefined opcode instruction as agreed upon by both x86 vendors
- Other smaller cleanups and touchups all over the place
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Merge tag 'x86_core_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more x86 updates from Borislav Petkov:
- Remove a bunch of asm implementing condition flags testing in KVM's
emulator in favor of int3_emulate_jcc() which is written in C
- Replace KVM fastops with C-based stubs which avoids problems with the
fastop infra related to latter not adhering to the C ABI due to their
special calling convention and, more importantly, bypassing compiler
control-flow integrity checking because they're written in asm
- Remove wrongly used static branches and other ugliness accumulated
over time in hyperv's hypercall implementation with a proper static
function call to the correct hypervisor call variant
- Add some fixes and modifications to allow running FRED-enabled
kernels in KVM even on non-FRED hardware
- Add kCFI improvements like validating indirect calls and prepare for
enabling kCFI with GCC. Add cmdline params documentation and other
code cleanups
- Use the single-byte 0xd6 insn as the official #UD single-byte
undefined opcode instruction as agreed upon by both x86 vendors
- Other smaller cleanups and touchups all over the place
* tag 'x86_core_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86,retpoline: Optimize patch_retpoline()
x86,ibt: Use UDB instead of 0xEA
x86/cfi: Remove __noinitretpoline and __noretpoline
x86/cfi: Add "debug" option to "cfi=" bootparam
x86/cfi: Standardize on common "CFI:" prefix for CFI reports
x86/cfi: Document the "cfi=" bootparam options
x86/traps: Clarify KCFI instruction layout
compiler_types.h: Move __nocfi out of compiler-specific header
objtool: Validate kCFI calls
x86/fred: KVM: VMX: Always use FRED for IRQs when CONFIG_X86_FRED=y
x86/fred: Play nice with invoking asm_fred_entry_from_kvm() on non-FRED hardware
x86/fred: Install system vector handlers even if FRED isn't fully enabled
x86/hyperv: Use direct call to hypercall-page
x86/hyperv: Clean up hv_do_hypercall()
KVM: x86: Remove fastops
KVM: x86: Convert em_salc() to C
KVM: x86: Introduce EM_ASM_3WCL
KVM: x86: Introduce EM_ASM_1SRC2
KVM: x86: Introduce EM_ASM_2CL
KVM: x86: Introduce EM_ASM_2W
...
- Allow child nodes on renesas-bsc bus binding
- Drop node name pattern on allwinner,sun50i-a64-de2 bus binding
- Switch DT patchwork to kernel.org from ozlabs.org
- Fix some typos in docs and bindings
- Fix reference count in PCI node unittest
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Merge tag 'devicetree-fixes-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Allow child nodes on renesas-bsc bus binding
- Drop node name pattern on allwinner,sun50i-a64-de2 bus binding
- Switch DT patchwork to kernel.org from ozlabs.org
- Fix some typos in docs and bindings
- Fix reference count in PCI node unittest
* tag 'devicetree-fixes-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: bus: renesas-bsc: allow additional properties
dt-bindings: bus: allwinner,sun50i-a64-de2: don't check node names
MAINTAINERS: Move DT patchwork to kernel.org
of: unittest: Fix device reference count leak in of_unittest_pci_node_verify
of: doc: Fix typo in doc comments.
dt-bindings: mmc: Correct typo "upto" to "up to"
Allow additional properties to enable devices attached to the bus.
Fixes warnings like these:
arch/arm/boot/dts/renesas/sh73a0-kzm9g.dtb: bus@fec10000 (renesas,bsc-sh73a0): Unevaluated properties are not allowed ('ethernet@10000000' was unexpected)
arch/arm/boot/dts/renesas/r8a73a4-ape6evm.dtb: bus@fec10000 (renesas,bsc-r8a73a4): Unevaluated properties are not allowed ('ethernet@8000000', 'flash@0' were unexpected)
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Node names are already and properly checked by the core schema. No need
to do it again.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
[robh: Also drop [A-F] in unit address]
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
A few more small fixes for 6.18-rc1.
Most of changes are about ASoC Intel and SOF drivers, while a few
other device-specific fixes are found for HD-audio, USB-audio, ASoC
RT722VB and Meson.
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Merge tag 'sound-fix-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A few more small fixes for 6.18-rc1.
Most of changes are about ASoC Intel and SOF drivers, while a few
other device-specific fixes are found for HD-audio, USB-audio, ASoC
RT722VB and Meson"
* tag 'sound-fix-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: rt722: add settings for rt722VB
ASoC: meson: aiu-encoder-i2s: fix bit clock polarity
ALSA: usb: fpc: replace kmalloc_array followed by copy_from_user with memdup_array_user
ALSA: hda/tas2781: Enable init_profile_id for device initialization
ALSA: emu10k1: Fix typo in docs
ALSA: hda/realtek: Add quirk for ASUS ROG Zephyrus Duo
ASoC: SOF: Intel: Read the LLP via the associated Link DMA channel
ASoC: SOF: ipc4-pcm: do not report invalid delay values
ASoC: SOF: sof-audio: add dev_dbg_ratelimited wrapper
ASoC: SOF: Intel: hda-pcm: Place the constraint on period time instead of buffer time
ASoC: SOF: ipc4-topology: Account for different ChainDMA host buffer size
ASoC: SOF: ipc4-topology: Correct the minimum host DMA buffer size
ASoC: SOF: ipc4-pcm: fix start offset calculation for chain DMA
ASoC: SOF: ipc4-pcm: fix delay calculation when DSP resamples
ASoC: SOF: ipc3-topology: Fix multi-core and static pipelines tear down
ALSA: hda/hdmi: Add pin fix for HP ProDesk model
Bug fixes:
- Add bounds checking in bit_putcs to fix vmalloc-out-of-bounds (Albin Babu Varghese)
- Fix logic error in "offb" name match (Finn Thain)
- simplefb: Fix use after free in simplefb_detach_genpds() (Janne Grunau)
- s3fb: Various fixes and powersave improvements (Zsolt Kajtar)
Enhancements & code cleanups:
- Various fixes in the documentation (Bagas Sanjaya)
- Use string choices helpers (Chelsy Ratnawat)
- xenfb: Use vmalloc_array to simplify code (Qianfeng Rong)
- mb862xxfb: Use int type to store negative error codes (Qianfeng Rong)
- Make drivers depend on LCD_CLASS_DEVICE (Thomas Zimmermann)
- radeonfb: Remove stale product link in Kconfig (Sukrut Heroorkar)
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Merge tag 'fbdev-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev updates from Helge Deller:
"Beside the usual bunch of smaller bug fixes, the majority of changes
were by Zsolt Kajtar to improve the s3fb driver.
Bug fixes:
- Bounds checking to fix vmalloc-out-of-bounds (Albin Babu Varghese)
- Fix logic error in "offb" name match (Finn Thain)
- simplefb: Fix use after free in (Janne Grunau)
- s3fb: Various fixes and powersave improvements (Zsolt Kajtar)
Enhancements & code cleanups:
- Various fixes in the documentation (Bagas Sanjaya)
- Use string choices helpers (Chelsy Ratnawat)
- xenfb: Use vmalloc_array to simplify code (Qianfeng Rong)
- mb862xxfb: use signed type for error codes (Qianfeng Rong)
- Make drivers depend on LCD_CLASS_DEVICE (Thomas Zimmermann)
- radeonfb: Remove stale product link in Kconfig (Sukrut Heroorkar)"
* tag 'fbdev-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: Fix logic error in "offb" name match
fbdev: Add bounds checking in bit_putcs to fix vmalloc-out-of-bounds
fbdev: Make drivers depend on LCD_CLASS_DEVICE
fbdev: radeonfb: Remove stale product link in Kconfig
Documentation: fb: Retitle driver docs
Documentation: fb: ep93xx: Demote section headings
Documentation: fb: Split toctree
fbdev: simplefb: Fix use after free in simplefb_detach_genpds()
fbdev: s3fb: Revert mclk stop in suspend
fbdev: mb862xxfb: Use int type to store negative error codes
fbdev: Use string choices helpers
fbdev: core: Fix ubsan warning in pixel_to_pat
fbdev: s3fb: Implement 1 and 2 BPP modes, improve 4 BPP
fbdev: s3fb: Implement powersave for S3 FB
fbdev: xenfb: Use vmalloc_array to simplify code
- Second part of rtl9300 updates since dependencies are in now
- general cleanups, implemented block read/write support, added RTL9310 support
- DT schema conversion of hix5hd2 binding
- namespace cleanup for i2c-algo-pca
- minor simplification for mt65xx
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Merge tag 'i2c-for-6.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull more i2c updates from Wolfram Sang:
- Second part of rtl9300 updates since dependencies are in now:
- general cleanups
- implement block read/write support
- add RTL9310 support
- DT schema conversion of hix5hd2 binding
- namespace cleanup for i2c-algo-pca
- minor simplification for mt65xx
* tag 'i2c-for-6.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
dt-bindings: i2c: hisilicon,hix5hd2: convert to DT schema
i2c: mt65xx: convert set_speed function to void
i2c: rename wait_for_completion callback to wait_for_completion_cb
i2c: rtl9300: add support for RTL9310 I2C controller
dt-bindings: i2c: realtek,rtl9301-i2c: extend for RTL9310 support
i2c: rtl9300: use scoped guard instead of explicit lock/unlock
i2c: rtl9300: separate xfer configuration and execution
i2c: rtl9300: do not set read mode on every transfer
i2c: rtl9300: move setting SCL frequency to config_io
i2c: rtl9300: rename internal sda_pin to sda_num
dt-bindings: i2c: realtek,rtl9301-i2c: fix wording and typos
i2c: rtl9300: use regmap fields and API for registers
i2c: rtl9300: Implement I2C block read and write
Convert the Devicetree binding documentation for hisilicon,hix5hd2-i2c
from plain text to DT binding schema.
Signed-off-by: Kael D'Alcamo <dev@kael-k.io>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
- Optimizations for DMA map and unmap opertions through the type1
vfio IOMMU backend. This uses various means of batching and hints
from the mm structures to improve efficiency and therefore
performance, resulting in a significant speedup for huge page
use cases. (Li Zhe)
- Expose supported device migration features through debugfs.
(Cédric Le Goater)
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Merge tag 'vfio-v6.18-rc1-pt2' of https://github.com/awilliam/linux-vfio
Pull more VFIO updates from Alex Williamson:
- Optimizations for DMA map and unmap opertions through the type1 vfio
IOMMU backend.
This uses various means of batching and hints from the mm structures
to improve efficiency and therefore performance, resulting in a
significant speedup for huge page use cases (Li Zhe)
- Expose supported device migration features through debugfs (Cédric Le
Goater)
* tag 'vfio-v6.18-rc1-pt2' of https://github.com/awilliam/linux-vfio:
vfio: Dump migration features under debugfs
vfio/type1: optimize vfio_unpin_pages_remote()
vfio/type1: introduce a new member has_rsvd for struct vfio_dma
vfio/type1: batch vfio_find_vpfn() in function vfio_unpin_pages_remote()
vfio/type1: optimize vfio_pin_pages_remote()
mm: introduce num_pages_contiguous()
- a number of conversions to yaml/json schema and fixes for
input-related device tree bindings
- a new driver for Awinic AW86927 haptic chip
- a new driver for Hynitron CST816x series controller
- a new driver for add Himax HX852x(ES) touchscreen controller
- a fix to uinput to not leak kernel memory via a gap in
uinput_ff_upload_compat structure
- a fix to prevent overflow in pressure calculation in tsc2007 driver
causing phantom touches
- a change to Atmel maxTouch driver to support generic touchscreen
configuration (flip, rotate, etc.)
- support for platform data was dropped in tca8418_keypad,
pxa27x-keypad, spear-keyboard and twl4030_keypad drivers, they all
now rely on generic device properties for configuration
- other assorted changes and fixes.
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Merge tag 'input-for-v6.18-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- Conversions to yaml/json schema and fixes for input-related device
tree bindings
- New drivers:
- Awinic AW86927 haptic chip
- Hynitron CST816x series controller
- Himax HX852x(ES) touchscreen controller
- Fix uinput to not leak kernel memory via a gap in
uinput_ff_upload_compat structure
- Prevent overflow in pressure calculation in tsc2007 driver causing
phantom touches
- Make the Atmel maxTouch driver support generic touchscreen
configuration (flip, rotate, etc)
- Drop support for platform data in tca8418_keypad, pxa27x-keypad,
spear-keyboard and twl4030_keypad drivers, they all now rely on
generic device properties for configuration
- Other assorted changes and fixes
* tag 'input-for-v6.18-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (50 commits)
Input: atmel_mxt_ts - allow reset GPIO to sleep
Input: aw86927 - fix error code in probe()
Input: psxpad-spi - add a check for the return value of spi_setup()
Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak
Input: aw86927 - add driver for Awinic AW86927
dt-bindings: input: Add Awinic AW86927
dt-bindings: touchscreen: remove touchscreen.txt
dt-bindings: arm: bcm: raspberrypi,bcm2835-firmware: Add touchscreen child node
dt-bindings: touchscreen: convert eeti bindings to json schema
Input: pm8941-pwrkey - disable wakeup for resin by default
dt-bindings: input: pm8941-pwrkey: Document wakeup-source property
Input: add driver for Hynitron CST816x series
dt-bindings: input: touchscreen: add hynitron cst816x series
Input: imx6ul_tsc - set glitch threshold by DTS property
dt-bindings: touchscreen: fsl,imx6ul-tsc: support glitch thresold
dt-bindings: touchscreen: add debounce-delay-us property
Input: ps2-gpio - fix typo
Input: atmel_mxt_ts - add support for generic touchscreen configurations
dt-bindings: input: maxtouch: add common touchscreen properties
dt-bindings: touchscreen: convert zet6223 bindings to json schema
...
- Make cpufreq drivers setting the default CPU transition latency to
CPUFREQ_ETERNAL specify a proper default transition latency value
instead which addresses a regression introduced during the 6.6 cycle
that broke CPUFREQ_ETERNAL handling (Rafael Wysocki)
- Make the cpufreq CPPC driver use a proper transition delay value
when CPUFREQ_ETERNAL is returned by cppc_get_transition_latency() to
indicate an error condition (Rafael Wysocki)
- Make cppc_get_transition_latency() return a negative error code to
indicate error conditions instead of using CPUFREQ_ETERNAL for this
purpose and drop CPUFREQ_ETERNAL that has no other users (Rafael
Wysocki, Gopi Krishna Menon)
- Fix device leak in the mediatek cpufreq driver (Johan Hovold)
- Set target frequency on all CPUs sharing a policy during frequency
updates in the tegra186 cpufreq driver and make it initialize all
cores to max frequencies (Aaron Kling)
- Rust cpufreq helper cleanup (Thorsten Blum)
- Make pm_runtime_put*() family of functions return 1 when the
given device is already suspended which is consistent with the
documentation (Brian Norris)
- Add basic kunit tests for runtime PM API contracts and update return
values in kerneldoc comments for the runtime PM API (Brian Norris,
Dan Carpenter)
- Add auto-cleanup macros for runtime PM "resume and get" and "get
without resume" operations, use one of them in the PCI core and
drop the existing "free" macro introduced for similar purpose, but
somewhat cumbersome to use (Rafael Wysocki)
- Make the core power management code avoid waiting on device links
marked as SYNC_STATE_ONLY which is consistent with the handling of
those device links elsewhere (Pin-yen Lin)
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Merge tag 'pm-6.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are cpufreq fixes and cleanups on top of the material merged
previously, a power management core code fix and updates of the
runtime PM framework including unit tests, documentation updates and
introduction of auto-cleanup macros for runtime PM "resume and get"
and "get without resuming" operations.
Specifics:
- Make cpufreq drivers setting the default CPU transition latency to
CPUFREQ_ETERNAL specify a proper default transition latency value
instead which addresses a regression introduced during the 6.6
cycle that broke CPUFREQ_ETERNAL handling (Rafael Wysocki)
- Make the cpufreq CPPC driver use a proper transition delay value
when CPUFREQ_ETERNAL is returned by cppc_get_transition_latency()
to indicate an error condition (Rafael Wysocki)
- Make cppc_get_transition_latency() return a negative error code to
indicate error conditions instead of using CPUFREQ_ETERNAL for this
purpose and drop CPUFREQ_ETERNAL that has no other users (Rafael
Wysocki, Gopi Krishna Menon)
- Fix device leak in the mediatek cpufreq driver (Johan Hovold)
- Set target frequency on all CPUs sharing a policy during frequency
updates in the tegra186 cpufreq driver and make it initialize all
cores to max frequencies (Aaron Kling)
- Rust cpufreq helper cleanup (Thorsten Blum)
- Make pm_runtime_put*() family of functions return 1 when the given
device is already suspended which is consistent with the
documentation (Brian Norris)
- Add basic kunit tests for runtime PM API contracts and update
return values in kerneldoc comments for the runtime PM API (Brian
Norris, Dan Carpenter)
- Add auto-cleanup macros for runtime PM "resume and get" and "get
without resume" operations, use one of them in the PCI core and
drop the existing "free" macro introduced for similar purpose, but
somewhat cumbersome to use (Rafael Wysocki)
- Make the core power management code avoid waiting on device links
marked as SYNC_STATE_ONLY which is consistent with the handling of
those device links elsewhere (Pin-yen Lin)"
* tag 'pm-6.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
docs/zh_CN: Fix malformed table
docs/zh_TW: Fix malformed table
PM: runtime: Fix error checking for kunit_device_register()
PM: runtime: Introduce one more usage counter guard
cpufreq: Drop unused symbol CPUFREQ_ETERNAL
ACPI: CPPC: Do not use CPUFREQ_ETERNAL as an error value
cpufreq: CPPC: Avoid using CPUFREQ_ETERNAL as transition delay
cpufreq: Make drivers using CPUFREQ_ETERNAL specify transition latency
PM: runtime: Drop DEFINE_FREE() for pm_runtime_put()
PCI/sysfs: Use runtime PM guard macro for auto-cleanup
PM: runtime: Add auto-cleanup macros for "resume and get" operations
cpufreq: tegra186: Initialize all cores to max frequencies
cpufreq: tegra186: Set target frequency for all cpus in policy
rust: cpufreq: streamline find_supply_names
cpufreq: mediatek: fix device leak on probe failure
PM: sleep: Do not wait on SYNC_STATE_ONLY device links
PM: runtime: Update kerneldoc return codes
PM: runtime: Make put{,_sync}() return 1 when already suspended
PM: runtime: Add basic kunit tests for API contracts
struct clk_ops::determine_rate() instead of the round_rate() one so that we can
remove the round_rate clk_op entirely. Brian has taken up that task which
nobody else has wanted to do for close to a decade. Thanks Brian! This is all
prerequisite work to get to the real task of improving the clk rate setting
process. Once we have determine_rate() used everywhere, we'll be able to do
things like chain the rate request structs in linked lists to order the rate
setting operations or add more parameters without having to change every clk
driver in existence. It's also nice to not have multiple ways to do something
which just causes confusion for clk driver authors. Overall I'm glad this is
getting done.
Beyond this change we also have a tweak to the clk_lookup() function in the
core framework to use hashing on the clk name instead of a clk tree walk with
string comparisons. We _still_ rely on the clk name to be unique, because
historically we've used globally unique strings to describe the clk tree
topology. This tree walk becomes increasingly slow as more clks are added to
the system. Searching from the roots for a duplicate is simple but pretty dumb
and it wastes boot time so we're using a hash table as an improvement. Ideally
we wouldn't rely on the strings to be unique at all, relegating them to simply
debug information, but that is future work that will likely require some sort
of Kconfig knob indicating strings aren't used for topology description.
Outside of the core framework changes we have the usual new SoC support and
fixes to clk drivers for things that were discovered once the clks were used by
consumer drivers. Nothing in particular is jumping out at me in the "misc"
pile, except maybe the Amlogic driver that has gone through a refactoring. That
series got a fix from testing in -next though so it seems likely that things
have been getting good test coverage for a couple weeks already.
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"There's a bunch of patches here across drivers/clk/ to migrate drivers
to use struct clk_ops::determine_rate() instead of the round_rate()
one so that we can remove the round_rate clk_op entirely. Brian has
taken up that task which nobody else has wanted to do for close to a
decade. Thanks Brian!
This is all prerequisite work to get to the real task of improving the
clk rate setting process. Once we have determine_rate() used
everywhere, we'll be able to do things like chain the rate request
structs in linked lists to order the rate setting operations or add
more parameters without having to change every clk driver in
existence. It's also nice to not have multiple ways to do something
which just causes confusion for clk driver authors. Overall I'm glad
this is getting done.
Beyond this change we also have a tweak to the clk_lookup() function
in the core framework to use hashing on the clk name instead of a clk
tree walk with string comparisons. We _still_ rely on the clk name to
be unique, because historically we've used globally unique strings to
describe the clk tree topology. This tree walk becomes increasingly
slow as more clks are added to the system. Searching from the roots
for a duplicate is simple but pretty dumb and it wastes boot time so
we're using a hash table as an improvement. Ideally we wouldn't rely
on the strings to be unique at all, relegating them to simply debug
information, but that is future work that will likely require some
sort of Kconfig knob indicating strings aren't used for topology
description.
Outside of the core framework changes we have the usual new SoC
support and fixes to clk drivers for things that were discovered once
the clks were used by consumer drivers. Nothing in particular is
jumping out at me in the "misc" pile, except maybe the Amlogic driver
that has gone through a refactoring. That series got a fix from
testing in -next though so it seems likely that things have been
getting good test coverage for a couple weeks already"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (299 commits)
clk: microchip: core: remove duplicate roclk_determine_rate()
reset: aspeed: register AST2700 reset auxiliary bus device
dt-bindings: clock: ast2700: modify soc0/1 clock define
clk: tegra: do not overallocate memory for bpmp clocks
clk: ep93xx: Use int type to store negative error codes
clk: nxp: Fix pll0 rate check condition in LPC18xx CGU driver
clk: loongson2: Add clock definitions for Loongson-2K0300 SoC
clk: loongson2: Avoid hardcoding firmware name of the reference clock
clk: loongson2: Allow zero divisors for dividers
clk: loongson2: Support scale clocks with an alternative mode
clk: loongson2: Allow specifying clock flags for gate clock
dt-bindings: clock: loongson2: Add Loongson-2K0300 compatible
clk: clocking-wizard: Fix output clock register offset for Versal platforms
clk: xilinx: Optimize divisor search in clk_wzrd_get_divisors_ver()
clk: mmp: pxa1908: Instantiate power driver through auxiliary bus
clk: s2mps11: add support for S2MPG10 PMIC clock
dt-bindings: clock: samsung,s2mps11: add s2mpg10
dt-bindings: stm32: cosmetic fixes for STM32MP25 clock and reset bindings
clk: stm32: introduce clocks for STM32MP21 platform
dt-bindings: stm32: add STM32MP21 clocks and reset bindings
...
- Preserve old 'tt_core' UAPI for Hisilicon L3C PMU driver.
- Ensure linear alias of kprobes instruction page is not writable.
- Fix kernel stack unwinding from BPF.
- Fix build warnings from the Fujitsu uncore PMU documentation.
- Fix hang with deferred 'struct page' initialisation and MTE.
- Consolidate KPTI page-table re-writing code.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- Preserve old 'tt_core' UAPI for Hisilicon L3C PMU driver
- Ensure linear alias of kprobes instruction page is not writable
- Fix kernel stack unwinding from BPF
- Fix build warnings from the Fujitsu uncore PMU documentation
- Fix hang with deferred 'struct page' initialisation and MTE
- Consolidate KPTI page-table re-writing code
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mte: Do not flag the zero page as PG_mte_tagged
docs: perf: Fujitsu: Fix htmldocs build warnings and errors
arm64: mm: Move KPTI helpers to mmu.c
tracing: Fix the bug where bpf_get_stackid returns -EFAULT on the ARM64
arm64: kprobes: call set_memory_rox() for kprobe page
drivers/perf: hisi: Add tt_core_deprecated for compatibility
Merge cpufreq fixes and cleanups, mostly on top of those fixes, for
6.18-rc1:
- Make cpufreq drivers setting the default CPU transition latency to
CPUFREQ_ETERNAL specify a proper default transition latency value
instead which addresses a regression introduced during the 6.6 cycle
that broke CPUFREQ_ETERNAL handling (Rafael Wysocki)
- Make the cpufreq CPPC driver use a proper transition delay value
when CPUFREQ_ETERNAL is returned by cppc_get_transition_latency() to
indicate an error condition (Rafael Wysocki)
- Make cppc_get_transition_latency() return a negative error code to
indicate error conditions instead of using CPUFREQ_ETERNAL for this
purpose and drop CPUFREQ_ETERNAL that has no other users (Rafael
Wysocki, Gopi Krishna Menon)
- Fix device leak in the mediatek cpufreq driver (Johan Hovold)
- Set target frequency on all CPUs sharing a policy during frequency
updates in the tegra186 cpufreq driver and make it initialize all
cores to max frequencies (Aaron Kling)
- Rust cpufreq helper cleanup (Thorsten Blum)
* pm-cpufreq:
docs/zh_CN: Fix malformed table
docs/zh_TW: Fix malformed table
cpufreq: Drop unused symbol CPUFREQ_ETERNAL
ACPI: CPPC: Do not use CPUFREQ_ETERNAL as an error value
cpufreq: CPPC: Avoid using CPUFREQ_ETERNAL as transition delay
cpufreq: Make drivers using CPUFREQ_ETERNAL specify transition latency
cpufreq: tegra186: Initialize all cores to max frequencies
cpufreq: tegra186: Set target frequency for all cpus in policy
rust: cpufreq: streamline find_supply_names
cpufreq: mediatek: fix device leak on probe failure
The MediaTek MT8196 SoC includes an embedded MCU referred to as "GPUEB",
acting as glue logic to control power and frequency of the Mali GPU.
This MCU runs special-purpose firmware for this use, and the main
application processor communicates with it through a mailbox.
Add a binding that describes this mailbox.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
The GCE Mailbox needs only one clock and the clock-names can be
used only by the driver (which, for instance, does not use it),
and this is true for all of the currently supported MediaTek SoCs.
Stop requiring to specify clock-names on all non-MT8195 GCEs.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Document CPU Control Processor (CPUCP) mailbox controller for Qualcomm
Glymur SoCs. It is software compatible with X1E80100 CPUCP mailbox
controller hence fallback to it.
Signed-off-by: Sibi Sankar <sibi.sankar@oss.qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
* Rework almost all of KVM's exports to expose symbols only to KVM's x86
vendor modules (kvm-{amd,intel}.ko and PPC's kvm-{pr,hv}.ko.
x86:
* Rework almost all of KVM x86's exports to expose symbols only to KVM's
vendor modules, i.e. to kvm-{amd,intel}.ko.
* Add support for virtualizing Control-flow Enforcement Technology (CET) on
Intel (Shadow Stacks and Indirect Branch Tracking) and AMD (Shadow Stacks).
It's worth noting that while SHSTK and IBT can be enabled separately in CPUID,
it is not really possible to virtualize them separately. Therefore, Intel
processors will really allow both SHSTK and IBT under the hood if either is
made visible in the guest's CPUID. The alternative would be to intercept
XSAVES/XRSTORS, which is not feasible for performance reasons.
* Fix a variety of fuzzing WARNs all caused by checking L1 intercepts when
completing userspace I/O. KVM has already committed to allowing L2 to
to perform I/O at that point.
* Emulate PERF_CNTR_GLOBAL_STATUS_SET for PerfMonV2 guests, as the MSR is
supposed to exist for v2 PMUs.
* Allow Centaur CPU leaves (base 0xC000_0000) for Zhaoxin CPUs.
* Add support for the immediate forms of RDMSR and WRMSRNS, sans full
emulator support (KVM should never need to emulate the MSRs outside of
forced emulation and other contrived testing scenarios).
* Clean up the MSR APIs in preparation for CET and FRED virtualization, as
well as mediated vPMU support.
* Clean up a pile of PMU code in anticipation of adding support for mediated
vPMUs.
* Reject in-kernel IOAPIC/PIT for TDX VMs, as KVM can't obtain EOI vmexits
needed to faithfully emulate an I/O APIC for such guests.
* Many cleanups and minor fixes.
* Recover possible NX huge pages within the TDP MMU under read lock to
reduce guest jitter when restoring NX huge pages.
* Return -EAGAIN during prefault if userspace concurrently deletes/moves the
relevant memslot, to fix an issue where prefaulting could deadlock with the
memslot update.
x86 (AMD):
* Enable AVIC by default for Zen4+ if x2AVIC (and other prereqs) is supported.
* Require a minimum GHCB version of 2 when starting SEV-SNP guests via
KVM_SEV_INIT2 so that invalid GHCB versions result in immediate errors
instead of latent guest failures.
* Add support for SEV-SNP's CipherText Hiding, an opt-in feature that prevents
unauthorized CPU accesses from reading the ciphertext of SNP guest private
memory, e.g. to attempt an offline attack. This feature splits the shared
SEV-ES/SEV-SNP ASID space into separate ranges for SEV-ES and SEV-SNP guests,
therefore a new module parameter is needed to control the number of ASIDs
that can be used for VMs with CipherText Hiding vs. how many can be used to
run SEV-ES guests.
* Add support for Secure TSC for SEV-SNP guests, which prevents the untrusted
host from tampering with the guest's TSC frequency, while still allowing the
the VMM to configure the guest's TSC frequency prior to launch.
* Validate the XCR0 provided by the guest (via the GHCB) to avoid bugs
resulting from bogus XCR0 values.
* Save an SEV guest's policy if and only if LAUNCH_START fully succeeds to
avoid leaving behind stale state (thankfully not consumed in KVM).
* Explicitly reject non-positive effective lengths during SNP's LAUNCH_UPDATE
instead of subtly relying on guest_memfd to deal with them.
* Reload the pre-VMRUN TSC_AUX on #VMEXIT for SEV-ES guests, not the host's
desired TSC_AUX, to fix a bug where KVM was keeping a different vCPU's
TSC_AUX in the host MSR until return to userspace.
KVM (Intel):
* Preparation for FRED support.
* Don't retry in TDX's anti-zero-step mitigation if the target memslot is
invalid, i.e. is being deleted or moved, to fix a deadlock scenario similar
to the aforementioned prefaulting case.
* Misc bugfixes and minor cleanups.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull x86 kvm updates from Paolo Bonzini:
"Generic:
- Rework almost all of KVM's exports to expose symbols only to KVM's
x86 vendor modules (kvm-{amd,intel}.ko and PPC's kvm-{pr,hv}.ko
x86:
- Rework almost all of KVM x86's exports to expose symbols only to
KVM's vendor modules, i.e. to kvm-{amd,intel}.ko
- Add support for virtualizing Control-flow Enforcement Technology
(CET) on Intel (Shadow Stacks and Indirect Branch Tracking) and AMD
(Shadow Stacks).
It is worth noting that while SHSTK and IBT can be enabled
separately in CPUID, it is not really possible to virtualize them
separately. Therefore, Intel processors will really allow both
SHSTK and IBT under the hood if either is made visible in the
guest's CPUID. The alternative would be to intercept
XSAVES/XRSTORS, which is not feasible for performance reasons
- Fix a variety of fuzzing WARNs all caused by checking L1 intercepts
when completing userspace I/O. KVM has already committed to
allowing L2 to to perform I/O at that point
- Emulate PERF_CNTR_GLOBAL_STATUS_SET for PerfMonV2 guests, as the
MSR is supposed to exist for v2 PMUs
- Allow Centaur CPU leaves (base 0xC000_0000) for Zhaoxin CPUs
- Add support for the immediate forms of RDMSR and WRMSRNS, sans full
emulator support (KVM should never need to emulate the MSRs outside
of forced emulation and other contrived testing scenarios)
- Clean up the MSR APIs in preparation for CET and FRED
virtualization, as well as mediated vPMU support
- Clean up a pile of PMU code in anticipation of adding support for
mediated vPMUs
- Reject in-kernel IOAPIC/PIT for TDX VMs, as KVM can't obtain EOI
vmexits needed to faithfully emulate an I/O APIC for such guests
- Many cleanups and minor fixes
- Recover possible NX huge pages within the TDP MMU under read lock
to reduce guest jitter when restoring NX huge pages
- Return -EAGAIN during prefault if userspace concurrently
deletes/moves the relevant memslot, to fix an issue where
prefaulting could deadlock with the memslot update
x86 (AMD):
- Enable AVIC by default for Zen4+ if x2AVIC (and other prereqs) is
supported
- Require a minimum GHCB version of 2 when starting SEV-SNP guests
via KVM_SEV_INIT2 so that invalid GHCB versions result in immediate
errors instead of latent guest failures
- Add support for SEV-SNP's CipherText Hiding, an opt-in feature that
prevents unauthorized CPU accesses from reading the ciphertext of
SNP guest private memory, e.g. to attempt an offline attack. This
feature splits the shared SEV-ES/SEV-SNP ASID space into separate
ranges for SEV-ES and SEV-SNP guests, therefore a new module
parameter is needed to control the number of ASIDs that can be used
for VMs with CipherText Hiding vs. how many can be used to run
SEV-ES guests
- Add support for Secure TSC for SEV-SNP guests, which prevents the
untrusted host from tampering with the guest's TSC frequency, while
still allowing the the VMM to configure the guest's TSC frequency
prior to launch
- Validate the XCR0 provided by the guest (via the GHCB) to avoid
bugs resulting from bogus XCR0 values
- Save an SEV guest's policy if and only if LAUNCH_START fully
succeeds to avoid leaving behind stale state (thankfully not
consumed in KVM)
- Explicitly reject non-positive effective lengths during SNP's
LAUNCH_UPDATE instead of subtly relying on guest_memfd to deal with
them
- Reload the pre-VMRUN TSC_AUX on #VMEXIT for SEV-ES guests, not the
host's desired TSC_AUX, to fix a bug where KVM was keeping a
different vCPU's TSC_AUX in the host MSR until return to userspace
KVM (Intel):
- Preparation for FRED support
- Don't retry in TDX's anti-zero-step mitigation if the target
memslot is invalid, i.e. is being deleted or moved, to fix a
deadlock scenario similar to the aforementioned prefaulting case
- Misc bugfixes and minor cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (142 commits)
KVM: x86: Export KVM-internal symbols for sub-modules only
KVM: x86: Drop pointless exports of kvm_arch_xxx() hooks
KVM: x86: Move kvm_intr_is_single_vcpu() to lapic.c
KVM: Export KVM-internal symbols for sub-modules only
KVM: s390/vfio-ap: Use kvm_is_gpa_in_memslot() instead of open coded equivalent
KVM: VMX: Make CR4.CET a guest owned bit
KVM: selftests: Verify MSRs are (not) in save/restore list when (un)supported
KVM: selftests: Add coverage for KVM-defined registers in MSRs test
KVM: selftests: Add KVM_{G,S}ET_ONE_REG coverage to MSRs test
KVM: selftests: Extend MSRs test to validate vCPUs without supported features
KVM: selftests: Add support for MSR_IA32_{S,U}_CET to MSRs test
KVM: selftests: Add an MSR test to exercise guest/host and read/write
KVM: x86: Define AMD's #HV, #VC, and #SX exception vectors
KVM: x86: Define Control Protection Exception (#CP) vector
KVM: x86: Add human friendly formatting for #XM, and #VE
KVM: SVM: Enable shadow stack virtualization for SVM
KVM: SEV: Synchronize MSR_IA32_XSS from the GHCB when it's valid
KVM: SVM: Pass through shadow stack MSRs as appropriate
KVM: SVM: Update dump_vmcb with shadow stack save area additions
KVM: nSVM: Save/load CET Shadow Stack state to/from vmcb12/vmcb02
...
