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Minor improvements in ARM DTS for v6.7
Few cleanups and improvements: split joined reg entries for Ethernet in
omap3-devkit8000, add missing spaces before '{' (MediaTek, Nuvoton) and
cleanup whitespace around '=' (MediaTek).
* tag 'dt-cleanup-6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt:
ARM: dts: nuvoton: add missing space before {
ARM: dts: mediatek: minor whitespace cleanup around '='
ARM: dts: mediatek: add missing space before {
ARM: dts: omap3-devkit8000: correct ethernet reg addresses (split)
Link: https://lore.kernel.org/r/20231006092823.94839-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Minor improvements in ARM64 DTS for v6.7
Few cleanups and improvements: use lowercase hex for unit addresses
(Bitmain), add missing spaces before '{' (APM, MediaTek) and cleanup
whitespace around '=' (MediaTek, Marvell).
* tag 'dt64-cleanup-6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt:
arm64: dts: marvell: minor whitespace cleanup around '='
arm64: dts: mediatek: minor whitespace cleanup around '='
arm64: dts: mediatek: add missing space before {
arm64: dts: apm: add missing space before {
arm64: dts: bitmain: lowercase unit addresses
Link: https://lore.kernel.org/r/20231006092823.94839-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Renesas DTS updates for v6.7
- Add PCIe Host and Endpoint support for the R-Car S4-8 SoC and the
Renesas Spider development board,
- Add FLASH support for the Renesas Genmai and RSK+RZA1 development
boards,
- Add multi Component sound support for Renesas ULCB development
boards equipped with the Shimafuji Kingfisher extension,
- Miscellaneous fixes and improvements.
* tag 'renesas-dts-for-v6.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
arm64: dts: renesas: ulcb/kf: Use multi Component sound
ARM: dts: renesas: rskrza1: Add FLASH nodes
ARM: dts: renesas: genmai: Add FLASH nodes
ARM: dts: renesas: wheat: Move Ethernet node to LBSC
ARM: dts: renesas: blanche: Move Ethernet node to LBSC
ARM: dts: renesas: marzen: Move Ethernet node to LBSC
ARM: dts: renesas: r8a7792: Add LBSC node
ARM: dts: renesas: r8a7779: Add LBSC node
ARM: dts: renesas: r7s72100: Add BSC node
ARM: dts: renesas: Remove unused LBSC nodes from board DTS
arm64: dts: renesas: r8a779f0: spider: Enable PCIe Host ch0
arm64: dts: renesas: r8a779f0: Add PCIe Host and Endpoint nodes
ARM: dts: renesas: gr-peach: Remove unneeded probe-type property
ARM: dts: renesas: ape6evm: Drop bogus "mtd-rom" compatible value
ARM: dts: renesas: blanche: Fix typo in GP_11_2 pin name
arm64: dts: renesas: Handle ADG bit for sound clk_i
Link: https://lore.kernel.org/r/cover.1695985427.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Renesas DT binding updates for v6.7
- Document support for the new RZ/G3S (R9A08G045) SoC variants.
* tag 'renesas-dt-bindings-for-v6.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
dt-bindings: soc: renesas: renesas,rzg2l-sysc: Document RZ/G3S SoC
dt-bindings: soc: renesas: Document Renesas RZ/G3S SoC variants
Link: https://lore.kernel.org/r/cover.1695985425.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Ux500 device tree updates for v6.7:
- Two fixes from Krzysztof fixing up DT properties
on the touchscreen.
* tag 'ux500-dts-for-armsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
ARM: dts: st: href-tvk1281618: correct touchscreen syna,nosleep-mode
ARM: dts: st: href-tvk1281618: fix touchscreen VIO supply
Link: https://lore.kernel.org/r/CACRpkdZc5Yzsos2+gRPtCT-+ohmaV69ew5YFJLakD+9VFkrkfQ@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Add AMD Pensando common and Elba SoC specific device nodes
Signed-off-by: Brad Larson <blarson@amd.com>
Link: https://lore.kernel.org/r/20230925195610.47971-5-blarson@amd.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Document the compatible for AMD Pensando Elba SoC boards.
Signed-off-by: Brad Larson <blarson@amd.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230925195610.47971-2-blarson@amd.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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There is no syna,nosleep property in Synaptics RMI4 touchscreen:
ste-hrefprev60-tvk.dtb: synaptics@4b: rmi4-f01@1: 'syna,nosleep' does not match any of the regexes: 'pinctrl-[0-9]+'
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-ID: <20230720115524.137944-2-krzysztof.kozlowski@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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According to bindings and Linux driver, there is no VDDIO but VIO
supply:
ste-hrefprev60-tvk.dtb: synaptics@4b: Unevaluated properties are not allowed ('vddio-supply' was unexpected)
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-ID: <20230720115524.137944-1-krzysztof.kozlowski@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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+-- ULCB -------------------+
|+--------+ +--------+|
|| SSI0| <---> |ak4613 ||
|| SSI1| <---> | ||
|| | +--------+|
|| | +--------+|
|| SSI2| <---> |HDMI ||
|| | +--------+|
|| SSI3| <--+ |
|| SSI4| <-+| |
|+--------+ || |
+-------------||------------+
+-- Kingfisher -------------+
| || +--------+|
| |+->|pcm3168a||
| +-->| ||
| +--------+|
+---------------------------+
On UCLB/KF, we intuitively think we want to handle these as "2 Sound
Cards":
card0,0: 1st sound of ULCB (SSI0 - ak4613)
card0,1: 2nd sound of ULCB (SSI2 - HDMI)
card1,0: 1st sound of KF (SSI3 - pcm3168a)
^ ^
However, because of ASoC Component vs. Card framework limitations, we
needed to handle this as "1 big Sound Card":
card0,0: 1st sound of ULCB/KF (SSI0 - ak4613)
card0,1: 2nd sound of ULCB/KF (SSI2 - HDMI)
card0,2: 3rd sound of ULCB/KF (SSI3 - pcm3168a)
^ ^
Now ASoC supports multi Component, which allows us to handle "2 Sound
Cards" such as "ULCB Sound Card" and "Kingfisher Sound Card", all
ULCB/KF Audio dtsi can be updated.
Note that this changes the Sound Card specification method from
userland, especially for Kingfisher Sound.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/87fs382yhk.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add device nodes for the dual Spansion S25FL512S QSPI NOR FLASH and the
Spansion S29GL512S CFI NOR FLASH on the RSK+RZA1 development board.
The former is mapped directly through the SPI Multi I/O Bus Controller.
The latter resides in the external address space of the Bus State
Controller (BSC).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/17a221699da14639e72264ffa39d47592d470f9a.1693481518.git.geert+renesas@glider.be
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Add device nodes for the dual Spansion S25FL512S QSPI NOR FLASH and the
two Spansion S29GL512S CFI NOR FLASHes on the Genmai development board.
The former is mapped directly through the SPI Multi I/O Bus Controller.
The latter reside in the address space of the Bus State Controller
(BSC).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/53c89c70c6b010702fd9ab5247e19986857671ba.1693481518.git.geert+renesas@glider.be
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The SMSC LAN89218AQ Ethernet controller on the Wheat development board
resides in the external address space of the Local Bus State Controller
(LBSC). Move the Ethernet device node to reflect this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/a291c2750144df29e69824d5b9d76cbc11f613c1.1693481518.git.geert+renesas@glider.be
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The SMSC LAN89218AQ Ethernet controller on the Blanche development board
resides in the external address space of the Local Bus State Controller
(LBSC). Move the Ethernet device node to reflect this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/457239047bc8b5deabf15d816043a89ab00db5ef.1693481518.git.geert+renesas@glider.be
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The SMSC LAN89218AQ Ethernet controller on the Marzen development board
resides in the external address space of the Local Bus State Controller
(LBSC). Move the Ethernet device node to reflect this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/74a8ee61ed89c9ca0489156a4f135ecb825e56b9.1693481518.git.geert+renesas@glider.be
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Add a minimal device node for the Local Bus State Controller (LBSC) on
the R-Car V2H SoC, to be extended by board DTS files for devices
residing in the LBSC external address space.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/182fce2257679f6a8963ecb77aae68af617556d1.1693481518.git.geert+renesas@glider.be
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Add a minimal device node for the Local Bus State Controller (LBSC) on
the R-Car H1 SoC, to be extended by board DTS files for devices residing
in the LBSC external address space.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/2d0a6054306b4975355e65fe012f860ec00fcf55.1693481518.git.geert+renesas@glider.be
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Add a minimal device node for the Bus State Controller (BSC) on the
RZ/A1H SoC, to be extended by board DTS files for devices residing in
the BSC external address space.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/ccab4fa198225edcd3750f62532a1ee3c6d2a109.1693481518.git.geert+renesas@glider.be
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Several board DTS files contain minimal device nodes that represent
on-SoC Local Bus State Controllers (LBSC), although they belong in the
SoC-specific DTS files instead. As these device nodes are incomplete
and unused, and hamper adding proper nodes later, it is better to just
remove them.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/76ece7602045670cbb8dff684c3366ba6eb89add.1693481518.git.geert+renesas@glider.be
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Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix EL2 Stage-1 MMIO mappings where a random address was used
- Fix SMCCC function number comparison when the SVE hint is set
RISC-V:
- Fix KVM_GET_REG_LIST API for ISA_EXT registers
- Fix reading ISA_EXT register of a missing extension
- Fix ISA_EXT register handling in get-reg-list test
- Fix filtering of AIA registers in get-reg-list test
x86:
- Fixes for TSC_AUX virtualization
- Stop zapping page tables asynchronously, since we don't zap them as
often as before"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Do not use user return MSR support for virtualized TSC_AUX
KVM: SVM: Fix TSC_AUX virtualization setup
KVM: SVM: INTERCEPT_RDTSCP is never intercepted anyway
KVM: x86/mmu: Stop zapping invalidated TDP MMU roots asynchronously
KVM: x86/mmu: Do not filter address spaces in for_each_tdp_mmu_root_yield_safe()
KVM: x86/mmu: Open code leaf invalidation from mmu_notifier
KVM: riscv: selftests: Selectively filter-out AIA registers
KVM: riscv: selftests: Fix ISA_EXT register handling in get-reg-list
RISC-V: KVM: Fix riscv_vcpu_get_isa_ext_single() for missing extensions
RISC-V: KVM: Fix KVM_GET_REG_LIST API for ISA_EXT registers
KVM: selftests: Assert that vasprintf() is successful
KVM: arm64: nvhe: Ignore SVE hint in SMCCC function ID
KVM: arm64: Properly return allocated EL2 VA from hyp_alloc_private_va_range()
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Pull tracing fixes from Steven Rostedt:
- Fix the "bytes" output of the per_cpu stat file
The tracefs/per_cpu/cpu*/stats "bytes" was giving bogus values as the
accounting was not accurate. It is suppose to show how many used
bytes are still in the ring buffer, but even when the ring buffer was
empty it would still show there were bytes used.
- Fix a bug in eventfs where reading a dynamic event directory (open)
and then creating a dynamic event that goes into that diretory screws
up the accounting.
On close, the newly created event dentry will get a "dput" without
ever having a "dget" done for it. The fix is to allocate an array on
dir open to save what dentries were actually "dget" on, and what ones
to "dput" on close.
* tag 'trace-v6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
eventfs: Remember what dentries were created on dir open
ring-buffer: Fix bytes info in per_cpu buffer stats
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Pull cxl fixes from Dan Williams:
"A collection of regression fixes, bug fixes, and some small cleanups
to the Compute Express Link code.
The regressions arrived in the v6.5 dev cycle and missed the v6.6
merge window due to my personal absences this cycle. The most
important fixes are for scenarios where the CXL subsystem fails to
parse valid region configurations established by platform firmware.
This is important because agreement between OS and BIOS on the CXL
configuration is fundamental to implementing "OS native" error
handling, i.e. address translation and component failure
identification.
Other important fixes are a driver load error when the BIOS lets the
Linux PCI core handle AER events, but not CXL memory errors.
The other fixex might have end user impact, but for now are only known
to trigger in our test/emulation environment.
Summary:
- Fix multiple scenarios where platform firmware defined regions fail
to be assembled by the CXL core.
- Fix a spurious driver-load failure on platforms that enable OS
native AER, but not OS native CXL error handling.
- Fix a regression detecting "poison" commands when "security"
commands are also defined.
- Fix a cxl_test regression with the move to centralize CXL port
register enumeration in the CXL core.
- Miscellaneous small fixes and cleanups"
* tag 'cxl-fixes-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/acpi: Annotate struct cxl_cxims_data with __counted_by
cxl/port: Fix cxl_test register enumeration regression
cxl/region: Refactor granularity select in cxl_port_setup_targets()
cxl/region: Match auto-discovered region decoders by HPA range
cxl/mbox: Fix CEL logic for poison and security commands
cxl/pci: Replace host_bridge->native_aer with pcie_aer_is_native()
PCI/AER: Export pcie_aer_is_native()
cxl/pci: Fix appropriate checking for _OSC while handling CXL RAS registers
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The DTS code coding style expects exactly one space before and after '='
sign.
Link: https://lore.kernel.org/r/20230702185301.44505-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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The DTS code coding style expects exactly one space before and after '='
sign.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230702185128.44052-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add missing whitespace between node name/label and opening {.
Link: https://lore.kernel.org/r/20230705150045.293879-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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The DTS code coding style expects exactly one space before and after '='
sign.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230702185128.44052-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add missing whitespace between node name/label and opening {.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230705150006.293690-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add missing whitespace between node name/label and opening {.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230705150006.293690-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add missing whitespace between node name/label and opening {.
Link: https://lore.kernel.org/r/20230705145934.293487-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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The davicom,dm9000 Ethernet Controller accepts two reg addresses.
Link: https://lore.kernel.org/r/20230713152913.82846-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Unit addresses are expected to be lower case. Pointed also by W=1
builds:
Warning (simple_bus_reg): /soc/serial@5801A000: simple-bus unit address format error, expected "5801a000"
Link: https://lore.kernel.org/r/20230712074611.35952-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Pull gpio fixes from Bartosz Golaszewski:
- fix an invalid usage of __free(kfree) leading to kfreeing an
ERR_PTR()
- fix an irq domain leak in gpio-tb10x
- MAINTAINERS update
* tag 'gpio-fixes-for-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: sim: fix an invalid __free() usage
gpio: tb10x: Fix an error handling path in tb10x_gpio_probe()
MAINTAINERS: gpio-regmap: make myself a maintainer of it
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Pull misc fixes from Andrew Morton:
"13 hotfixes, 10 of which pertain to post-6.5 issues. The other three
are cc:stable"
* tag 'mm-hotfixes-stable-2023-09-23-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
proc: nommu: fix empty /proc/<pid>/maps
filemap: add filemap_map_order0_folio() to handle order0 folio
proc: nommu: /proc/<pid>/maps: release mmap read lock
mm: memcontrol: fix GFP_NOFS recursion in memory.high enforcement
pidfd: prevent a kernel-doc warning
argv_split: fix kernel-doc warnings
scatterlist: add missing function params to kernel-doc
selftests/proc: fixup proc-empty-vm test after KSM changes
revert "scripts/gdb/symbols: add specific ko module load command"
selftests: link libasan statically for tests with -fsanitize=address
task_work: add kerneldoc annotation for 'data' argument
mm: page_alloc: fix CMA and HIGHATOMIC landing on the wrong buddy list
sh: mm: re-add lost __ref to ioremap_prot() to fix modpost warning
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Pull smb client fixes from Steve French:
"Six smb3 client fixes, including three for stable, from the SMB
plugfest (testing event) this week:
- Reparse point handling fix (found when investigating dir
enumeration when fifo in dir)
- Fix excessive thread creation for dir lease cleanup
- UAF fix in negotiate path
- remove duplicate error message mapping and fix confusing warning
message
- add dynamic trace point to improve debugging RDMA connection
attempts"
* tag '6.6-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb3: fix confusing debug message
smb: client: handle STATUS_IO_REPARSE_TAG_NOT_HANDLED
smb3: remove duplicate error mapping
cifs: Fix UAF in cifs_demultiplex_thread()
smb3: do not start laundromat thread when dir leases disabled
smb3: Add dynamic trace points for RDMA (smbdirect) reconnect
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Pull i2c fixes from Wolfram Sang:
"A set of I2C driver fixes. Mostly fixing resource leaks or sanity
checks"
* tag 'i2c-for-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: xiic: Correct return value check for xiic_reinit()
i2c: mux: gpio: Add missing fwnode_handle_put()
i2c: mux: demux-pinctrl: check the return value of devm_kstrdup()
i2c: designware: fix __i2c_dw_disable() in case master is holding SCL low
i2c: i801: unregister tco_pdev in i801_probe() error path
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The code was accidentally mixing new and old style macros, update the
macros used to remove an unused function warning whilst building with
no PM enabled in the config.
Fixes: ace6d1448138 ("mfd: cs42l43: Add support for cs42l43 core driver")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/all/20230822114914.340359-1-ckeepax@opensource.cirrus.com/
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull LoongArch fixes from Huacai Chen:
"Fix lockdep, fix a boot failure, fix some build warnings, fix document
links, and some cleanups"
* tag 'loongarch-fixes-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
docs/zh_CN/LoongArch: Update the links of ABI
docs/LoongArch: Update the links of ABI
LoongArch: Don't inline kasan_mem_to_shadow()/kasan_shadow_to_mem()
kasan: Cleanup the __HAVE_ARCH_SHADOW_MAP usage
LoongArch: Set all reserved memblocks on Node#0 at initialization
LoongArch: Remove dead code in relocate_new_kernel
LoongArch: Use _UL() and _ULL()
LoongArch: Fix some build warnings with W=1
LoongArch: Fix lockdep static memory detection
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Pull s390 fixes from Vasily Gorbik:
- Fix potential string buffer overflow in hypervisor user-defined
certificates handling
- Update defconfigs
* tag 's390-6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/cert_store: fix string length handling
s390: update defconfigs
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Pull iomap fixes from Darrick Wong:
- Return EIO on bad inputs to iomap_to_bh instead of BUGging, to deal
less poorly with block device io racing with block device resizing
- Fix a stale page data exposure bug introduced in 6.6-rc1 when
unsharing a file range that is not in the page cache
* tag 'iomap-6.6-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
iomap: convert iomap_unshare_iter to use large folios
iomap: don't skip reading in !uptodate folios when unsharing a range
iomap: handle error conditions more gracefully in iomap_to_bh
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KVM/riscv fixes for 6.6, take #1
- Fix KVM_GET_REG_LIST API for ISA_EXT registers
- Fix reading ISA_EXT register of a missing extension
- Fix ISA_EXT register handling in get-reg-list test
- Fix filtering of AIA registers in get-reg-list test
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When the TSC_AUX MSR is virtualized, the TSC_AUX value is swap type "B"
within the VMSA. This means that the guest value is loaded on VMRUN and
the host value is restored from the host save area on #VMEXIT.
Since the value is restored on #VMEXIT, the KVM user return MSR support
for TSC_AUX can be replaced by populating the host save area with the
current host value of TSC_AUX. And, since TSC_AUX is not changed by Linux
post-boot, the host save area can be set once in svm_hardware_enable().
This eliminates the two WRMSR instructions associated with the user return
MSR support.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <d381de38eb0ab6c9c93dda8503b72b72546053d7.1694811272.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The checks for virtualizing TSC_AUX occur during the vCPU reset processing
path. However, at the time of initial vCPU reset processing, when the vCPU
is first created, not all of the guest CPUID information has been set. In
this case the RDTSCP and RDPID feature support for the guest is not in
place and so TSC_AUX virtualization is not established.
This continues for each vCPU created for the guest. On the first boot of
an AP, vCPU reset processing is executed as a result of an APIC INIT
event, this time with all of the guest CPUID information set, resulting
in TSC_AUX virtualization being enabled, but only for the APs. The BSP
always sees a TSC_AUX value of 0 which probably went unnoticed because,
at least for Linux, the BSP TSC_AUX value is 0.
Move the TSC_AUX virtualization enablement out of the init_vmcb() path and
into the vcpu_after_set_cpuid() path to allow for proper initialization of
the support after the guest CPUID information has been set.
With the TSC_AUX virtualization support now in the vcpu_set_after_cpuid()
path, the intercepts must be either cleared or set based on the guest
CPUID input.
Fixes: 296d5a17e793 ("KVM: SEV-ES: Use V_TSC_AUX if available instead of RDTSC/MSR_TSC_AUX intercepts")
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <4137fbcb9008951ab5f0befa74a0399d2cce809a.1694811272.git.thomas.lendacky@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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svm_recalc_instruction_intercepts() is always called at least once
before the vCPU is started, so the setting or clearing of the RDTSCP
intercept can be dropped from the TSC_AUX virtualization support.
Extracted from a patch by Tom Lendacky.
Cc: stable@vger.kernel.org
Fixes: 296d5a17e793 ("KVM: SEV-ES: Use V_TSC_AUX if available instead of RDTSC/MSR_TSC_AUX intercepts")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Stop zapping invalidate TDP MMU roots via work queue now that KVM
preserves TDP MMU roots until they are explicitly invalidated. Zapping
roots asynchronously was effectively a workaround to avoid stalling a vCPU
for an extended during if a vCPU unloaded a root, which at the time
happened whenever the guest toggled CR0.WP (a frequent operation for some
guest kernels).
While a clever hack, zapping roots via an unbound worker had subtle,
unintended consequences on host scheduling, especially when zapping
multiple roots, e.g. as part of a memslot. Because the work of zapping a
root is no longer bound to the task that initiated the zap, things like
the CPU affinity and priority of the original task get lost. Losing the
affinity and priority can be especially problematic if unbound workqueues
aren't affined to a small number of CPUs, as zapping multiple roots can
cause KVM to heavily utilize the majority of CPUs in the system, *beyond*
the CPUs KVM is already using to run vCPUs.
When deleting a memslot via KVM_SET_USER_MEMORY_REGION, the async root
zap can result in KVM occupying all logical CPUs for ~8ms, and result in
high priority tasks not being scheduled in in a timely manner. In v5.15,
which doesn't preserve unloaded roots, the issues were even more noticeable
as KVM would zap roots more frequently and could occupy all CPUs for 50ms+.
Consuming all CPUs for an extended duration can lead to significant jitter
throughout the system, e.g. on ChromeOS with virtio-gpu, deleting memslots
is a semi-frequent operation as memslots are deleted and recreated with
different host virtual addresses to react to host GPU drivers allocating
and freeing GPU blobs. On ChromeOS, the jitter manifests as audio blips
during games due to the audio server's tasks not getting scheduled in
promptly, despite the tasks having a high realtime priority.
Deleting memslots isn't exactly a fast path and should be avoided when
possible, and ChromeOS is working towards utilizing MAP_FIXED to avoid the
memslot shenanigans, but KVM is squarely in the wrong. Not to mention
that removing the async zapping eliminates a non-trivial amount of
complexity.
Note, one of the subtle behaviors hidden behind the async zapping is that
KVM would zap invalidated roots only once (ignoring partial zaps from
things like mmu_notifier events). Preserve this behavior by adding a flag
to identify roots that are scheduled to be zapped versus roots that have
already been zapped but not yet freed.
Add a comment calling out why kvm_tdp_mmu_invalidate_all_roots() can
encounter invalid roots, as it's not at all obvious why zapping
invalidated roots shouldn't simply zap all invalid roots.
Reported-by: Pattara Teerapong <pteerapong@google.com>
Cc: David Stevens <stevensd@google.com>
Cc: Yiwei Zhang<zzyiwei@google.com>
Cc: Paul Hsia <paulhsia@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230916003916.2545000-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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All callers except the MMU notifier want to process all address spaces.
Remove the address space ID argument of for_each_tdp_mmu_root_yield_safe()
and switch the MMU notifier to use __for_each_tdp_mmu_root_yield_safe().
Extracted out of a patch by Sean Christopherson <seanjc@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Pull hardening fixes from Kees Cook:
- Fix UAPI stddef.h to avoid C++-ism (Alexey Dobriyan)
- Fix harmless UAPI stddef.h header guard endif (Alexey Dobriyan)
* tag 'hardening-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
uapi: stddef.h: Fix __DECLARE_FLEX_ARRAY for C++
uapi: stddef.h: Fix header guard location
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Pull xfs fixes from Chandan Babu:
- Fix an integer overflow bug when processing an fsmap call
- Fix crash due to CPU hot remove event racing with filesystem mount
operation
- During read-only mount, XFS does not allow the contents of the log to
be recovered when there are one or more unrecognized rcompat features
in the primary superblock, since the log might have intent items
which the kernel does not know how to process
- During recovery of log intent items, XFS now reserves log space
sufficient for one cycle of a permanent transaction to execute.
Otherwise, this could lead to livelocks due to non-availability of
log space
- On an fs which has an ondisk unlinked inode list, trying to delete a
file or allocating an O_TMPFILE file can cause the fs to the shutdown
if the first inode in the ondisk inode list is not present in the
inode cache. The bug is solved by explicitly loading the first inode
in the ondisk unlinked inode list into the inode cache if it is not
already cached
A similar problem arises when the uncached inode is present in the
middle of the ondisk unlinked inode list. This second bug is
triggered when executing operations like quotacheck and bulkstat. In
this case, XFS now reads in the entire ondisk unlinked inode list
- Enable LARP mode only on recent v5 filesystems
- Fix a out of bounds memory access in scrub
- Fix a performance bug when locating the tail of the log during
mounting a filesystem
* tag 'xfs-6.6-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: use roundup_pow_of_two instead of ffs during xlog_find_tail
xfs: only call xchk_stats_merge after validating scrub inputs
xfs: require a relatively recent V5 filesystem for LARP mode
xfs: make inode unlinked bucket recovery work with quotacheck
xfs: load uncached unlinked inodes into memory on demand
xfs: reserve less log space when recovering log intent items
xfs: fix log recovery when unknown rocompat bits are set
xfs: reload entire unlinked bucket lists
xfs: allow inode inactivation during a ro mount log recovery
xfs: use i_prev_unlinked to distinguish inodes that are not on the unlinked list
xfs: remove CPU hotplug infrastructure
xfs: remove the all-mounts list
xfs: use per-mount cpumask to track nonempty percpu inodegc lists
xfs: fix an agbno overflow in __xfs_getfsmap_datadev
xfs: fix per-cpu CIL structure aggregation racing with dying cpus
xfs: fix select in config XFS_ONLINE_SCRUB_STATS
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Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct cxl_cxims_data.
Additionally, since the element count member must be set before accessing
the annotated flexible array member, move its initialization earlier.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linux-cxl@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20230922175319.work.096-kees@kernel.org
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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The cxl_test unit test environment models a CXL topology for
sysfs/user-ABI regression testing. It uses interface mocking via the
"--wrap=" linker option to redirect cxl_core routines that parse
hardware registers with versions that just publish objects, like
devm_cxl_enumerate_decoders().
Starting with:
Commit 19ab69a60e3b ("cxl/port: Store the port's Component Register mappings in struct cxl_port")
...port register enumeration is moved into devm_cxl_add_port(). This
conflicts with the "cxl_test avoids emulating registers stance" so
either the port code needs to be refactored (too violent), or modified
so that register enumeration is skipped on "fake" cxl_test ports
(annoying, but straightforward).
This conflict has happened previously and the "check for platform
device" workaround to avoid instrusive refactoring was deployed in those
scenarios. In general, refactoring should only benefit production code,
test code needs to remain minimally instrusive to the greatest extent
possible.
This was missed previously because it may sometimes just cause warning
messages to be emitted, but it can also cause test failures. The
backport to -stable is only nice to have for clean cxl_test runs.
Fixes: 19ab69a60e3b ("cxl/port: Store the port's Component Register mappings in struct cxl_port")
Cc: stable@vger.kernel.org
Reported-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/169476525052.1013896.6235102957693675187.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Arnd Bergmann
Brad Larson
Krzysztof Kozlowski
Kuninori Morimoto
Geert Uytterhoeven
Linus Torvalds
Charles Keepax
Paolo Bonzini
Tom Lendacky
Sean Christopherson
Kees Cook
Dan Williams