- Implement local aer_printk() since AER is the only place that prints a
message with level depending on the error severity (Ilpo Järvinen)
* pci/aer:
PCI/ERR: Handle TLP Log in Flit mode
PCI: Track Flit Mode Status & print it with link status
PCI/AER: Descope pci_printk() to aer_printk()
The arg_count parameter to syscon_regmap_lookup_by_phandle_args()
represents the number of argument cells following the phandle. In this
case, the number of arguments should be 1 instead of 2 since the dt
property looks like this:
fsl,pcie-scfg = <&scfg 0>;
Without this fix, layerscape-pcie fails with the following message on
LS1043A:
OF: /soc/pcie@3500000: phandle scfg@1570000 needs 2, found 1
layerscape-pcie 3500000.pcie: No syscfg phandle specified
layerscape-pcie 3500000.pcie: probe with driver layerscape-pcie failed with error -22
Link: https://lore.kernel.org/r/20250327151949.2765193-1-ioana.ciornei@nxp.com
Fixes: 149fc35734 ("PCI: layerscape: Use syscon_regmap_lookup_by_phandle_args")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Roy Zang <Roy.Zang@nxp.com>
Cc: stable@vger.kernel.org
Set FLAG_WWAN instead of FLAG_ETHERNET for RNDIS interfaces on Mobile
Broadband Modems, as opposed to regular Ethernet adapters.
Otherwise NetworkManager gets confused, misjudges the device type,
and wouldn't know it should connect a modem to get the device to work.
What would be the result depends on ModemManager version -- older
ModemManager would end up disconnecting a device after an unsuccessful
probe attempt (if it connected without needing to unlock a SIM), while
a newer one might spawn a separate PPP connection over a tty interface
instead, resulting in a general confusion and no end of chaos.
The only way to get this work reliably is to fix the device type
and have good enough version ModemManager (or equivalent).
Fixes: 63ba395cd7 ("rndis_host: support Novatel Verizon USB730L")
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://patch.msgid.link/20250325095842.1567999-1-lkundrak@v3.sk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This is mainly set of cleanups of asm-generic/io.h, resolving problems
with inconsistent semantics of ioread64/iowrite64 that were causing
runtime and build issues.
The "GENERIC_IOMAP" version that switches between inb()/outb() and
readb()/writeb() style accessors is now only used on architectures that
have PC-style ISA devices that are not memory mapped (x86, uml, m68k-q40
and powerpc-powernv), while alpha and parisc use a more complicated
variant and everything else just maps the ioread interfaces to plan MMIO
(readb/writeb etc).
In addition there are two small changes from Raag Jadav to simplify
the asm-generic/io.h indirect inclusions and from Jann Horn to fix
a corner case with read_word_at_a_time.
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Merge tag 'asm-generic-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"This is mainly set of cleanups of asm-generic/io.h, resolving problems
with inconsistent semantics of ioread64/iowrite64 that were causing
runtime and build issues.
The "GENERIC_IOMAP" version that switches between inb()/outb() and
readb()/writeb() style accessors is now only used on architectures
that have PC-style ISA devices that are not memory mapped (x86, uml,
m68k-q40 and powerpc-powernv), while alpha and parisc use a more
complicated variant and everything else just maps the ioread
interfaces to plan MMIO (readb/writeb etc).
In addition there are two small changes from Raag Jadav to simplify
the asm-generic/io.h indirect inclusions and from Jann Horn to fix a
corner case with read_word_at_a_time"
* tag 'asm-generic-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
rwonce: fix crash by removing READ_ONCE() for unaligned read
rwonce: handle KCSAN like KASAN in read_word_at_a_time()
m68k: coldfire: select PCI_IOMAP for PCI
mips: export pci_iounmap()
mips: fix PCI_IOBASE definition
m68k/nommu: stop using GENERIC_IOMAP
mips: drop GENERIC_IOMAP wrapper
powerpc: asm/io.h: remove split ioread64/iowrite64 helpers
parisc: stop using asm-generic/iomap.h
sh: remove duplicate ioread/iowrite helpers
alpha: stop using asm-generic/iomap.h
io.h: drop unused headers
drm/draw: include missing headers
asm-generic/io.h: rework split ioread64/iowrite64 helpers
Each time a file in policy, that is already opened for read, is opened
for write, a Time-of-Measure-Time-of-Use (ToMToU) integrity violation
audit message is emitted and a violation record is added to the IMA
measurement list. This occurs even if a ToMToU violation has already
been recorded.
Limit the number of ToMToU integrity violations per file open for read.
Note: The IMA_MAY_EMIT_TOMTOU atomic flag must be set from the reader
side based on policy. This may result in a per file open for read
ToMToU violation.
Since IMA_MUST_MEASURE is only used for violations, rename the atomic
IMA_MUST_MEASURE flag to IMA_MAY_EMIT_TOMTOU.
Cc: stable@vger.kernel.org # applies cleanly up to linux-6.6
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Tested-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
The at91 platform gains support for SAMA7D65, a new variant of the
Cortex-A7 based SAMA7G5 with a graphics output.
The i.MX, Renesas and davinci platforms each get one minor bugfix.
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Merge tag 'soc-arm-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC arm platform updates from Arnd Bergmann:
"The at91 platform gains support for SAMA7D65, a new variant of the
Cortex-A7 based SAMA7G5 with a graphics output.
The i.MX, Renesas and davinci platforms each get one minor bugfix"
* tag 'soc-arm-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: davinci: always enable CONFIG_ARCH_DAVINCI_DA850
ARM: imx: mark imx53_suspend_sz as unused
ARM: at91: pm: Enable ULP0/ULP1 for SAMA7D65
ARM: at91: pm: Add Backup mode for SAMA7D65
ARM: at91: pm: add DT compatible support for sama7d65
ARM: at91: pm: fix at91_suspend_finish for ZQ calibration
dt-bindings: ARM: at91: add Calao USB boards
dt-bindings: ARM: at91: make separate entry for Olimex board
ARM: at91: Add Support in SoC driver for SAMA7D65
dt-bindings: atmel-sysreg: Add SAMA7D65 Chip ID
ARM: shmobile: rcar-gen2: Remove CMA reservation code
Each time a file in policy, that is already opened for write, is opened
for read, an open-writers integrity violation audit message is emitted
and a violation record is added to the IMA measurement list. This
occurs even if an open-writers violation has already been recorded.
Limit the number of open-writers integrity violations for an existing
file open for write to one. After the existing file open for write
closes (__fput), subsequent open-writers integrity violations may be
emitted.
Cc: stable@vger.kernel.org # applies cleanly up to linux-6.6
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Tested-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
A small set of updates for the arm64 defconfig to enable more
drivers, plus a bit for housekeeping on some of the arm32
defconfigs on particular SoC families.
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Merge tag 'soc-defconfig-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC defconfig updates from Arnd Bergmann:
"A small set of updates for the arm64 defconfig to enable more drivers,
plus a bit for housekeeping on some of the arm32 defconfigs on
particular SoC families"
* tag 'soc-defconfig-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm: defconfig: drop RT_GROUP_SCHED=y from bcm2835/tegra/omap2plus
arm64: defconfig: Enable USB retimer and redriver
arm64: defconfig: Build NSS Clock Controller driver for IPQ9574
arm64: defconfig: Enable SPI NAND flashes
arm64: defconfig: Enable Synopsys HDMI receiver
arm64: defconfig: Enable Rockchip UFS host driver
arm64: defconfig: enable Qualcomm IRIS & VIDEOCC_8550 as module
arm64: defconfig: Enable HSR protocol driver
arm64: defconfig: Enable gb_beagleplay
arm64: defconfig: enable DRM_DISPLAY_CONNECTOR as a module
arm64: defconfig: Enable Qualcomm QCM2290 GPU clock controller
ARM: shmobile: defconfig: Supplement DTB with ATAG information
These are the updates for SoC specific drivers and related subsystems:
- Firmware driver updates for SCMI, FF-A and SMCCC firmware interfaces,
adding support for additional firmware features including SoC
identification and FF-A SRI callbacks as well as various bugfixes
- Memory controller updates for Nvidia and Mediatek
- Reset controller support for microchip sam9x7 and imx8qxp/imx8qm
- New hardware support for multiple Mediatek, Renesas and Samsung Exynos chips
- Minor updates on Zynq, Qualcomm, Amlogic, TI, Samsung, Nvidia and Apple chips
There will be a follow up with a few more driver updates that are still
causing build regressions at the moment.
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Merge tag 'soc-drivers-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"These are the updates for SoC specific drivers and related subsystems:
- Firmware driver updates for SCMI, FF-A and SMCCC firmware
interfaces, adding support for additional firmware features
including SoC identification and FF-A SRI callbacks as well as
various bugfixes
- Memory controller updates for Nvidia and Mediatek
- Reset controller support for microchip sam9x7 and imx8qxp/imx8qm
- New hardware support for multiple Mediatek, Renesas and Samsung
Exynos chips
- Minor updates on Zynq, Qualcomm, Amlogic, TI, Samsung, Nvidia and
Apple chips
There will be a follow up with a few more driver updates that are
still causing build regressions at the moment"
* tag 'soc-drivers-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (97 commits)
irqchip: Add support for Amlogic A4 and A5 SoCs
dt-bindings: interrupt-controller: Add support for Amlogic A4 and A5 SoCs
reset: imx: fix incorrect module device table
dt-bindings: power: qcom,kpss-acc-v2: add qcom,msm8916-acc compatible
bus: qcom-ssc-block-bus: Fix the error handling path of qcom_ssc_block_bus_probe()
bus: qcom-ssc-block-bus: Remove some duplicated iounmap() calls
soc: qcom: pd-mapper: Add support for SDM630/636
reset: imx: Add SCU reset driver for i.MX8QXP and i.MX8QM
dt-bindings: firmware: imx: add property reset-controller
dt-bindings: reset: atmel,at91sam9260-reset: add sam9x7
memory: mtk-smi: Add ostd setting for mt8192
dt-bindings: soc: samsung: exynos-usi: Drop unnecessary status from example
firmware: tegra: bpmp: Fix typo in bpmp-abi.h
soc/tegra: pmc: Use str_enable_disable-like helpers
soc: samsung: include linux/array_size.h where needed
firmware: arm_scmi: use ioread64() instead of ioread64_hi_lo()
soc: mediatek: mtk-socinfo: Add extra entry for MT8395AV/ZA Genio 1200
soc: mediatek: mt8188-mmsys: Add support for DSC on VDO0
soc: mediatek: mmsys: Migrate all tables to MMSYS_ROUTE() macro
soc: mediatek: mt8365-mmsys: Fix routing table masks and values
...
The pages Documentation/tools/rv/rv-mon-sched.rst and
Documentation/trace/rv/monitor_sched.rst were introduced but not
included in any index.
Add them to the respective indices.
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/20250327081240.46422-1-gmonaco@redhat.com
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 03abeaa63c ("Documentation/rv: Add docs for the sched monitors")
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
There is new support for additional on-chip devices on Apple, Mediatek,
Renesas, Rockchip, Samsung, Google, TI, ST, Nvidia and Amlogic devices.
The Arm Morello reference platform gets a devicetree for booting in
normal aarch64 mode. The hardware supports experimental CHERI support,
which requires a modified kernel.
The AMD (formerly Xilinx) Versal NET SoC gets added, this is a combined
FPGA with Cortex-A78 CPUs in a SoC.
Six new ST STM32MP2 SoC variants are added. Like the earlier STM32MP25,
the MP211, MP213, MP215, MP231, MP233 and MP235 models are based on one
or two Cortex-A35 cores but each feature a different set of I/O devices.
Mediatek MT8370 is a minor variation of MT8390 with fewer CPU and
GPU cores
Apple T2 is the baseboard management controller on earlier Intel CPU
based Macs, with 16 models now gaining initial support.
All the above come with dts files for the reference boards. In
addition, these boards are added for the SoCs that are already supported.
- The Milk-V Jupiter board based on SpacemiT K1/M1
- NetCube Systems Kumquat board based on the 32-bit Allwinner V3s SoC
- Three boards based on 32-bit stm32mp1
- 11 distinct board variants from Toradex and one from Variscite,
all based on i.MX6
- Google Pixel Pro 6 phone based on gs101 (Tensor)
- Three additional variants of the i.MX8MP based "Skov" board
- A second variant of the i.MX95 EVK board
- Two boards based on Renesas SoCs
- Four boards based the Rockchip RK35xx series, plus the RK3588
"MNT Reform 2" laptop
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Merge tag 'soc-dt-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC devicetree updates from Arnd Bergmann:
"There is new support for additional on-chip devices on Apple,
Mediatek, Renesas, Rockchip, Samsung, Google, TI, ST, Nvidia and
Amlogic devices.
The Arm Morello reference platform gets a devicetree for booting in
normal aarch64 mode. The hardware supports experimental CHERI support,
which requires a modified kernel.
The AMD (formerly Xilinx) Versal NET SoC gets added, this is a
combined FPGA with Cortex-A78 CPUs in a SoC.
Six new ST STM32MP2 SoC variants are added. Like the earlier
STM32MP25, the MP211, MP213, MP215, MP231, MP233 and MP235 models are
based on one or two Cortex-A35 cores but each feature a different set
of I/O devices.
Mediatek MT8370 is a minor variation of MT8390 with fewer CPU and GPU
cores
Apple T2 is the baseboard management controller on earlier Intel CPU
based Macs, with 16 models now gaining initial support.
All the above come with dts files for the reference boards. In
addition, these boards are added for the SoCs that are already
supported:
- The Milk-V Jupiter board based on SpacemiT K1/M1
- NetCube Systems Kumquat board based on the 32-bit Allwinner V3s SoC
- Three boards based on 32-bit stm32mp1
- 11 distinct board variants from Toradex and one from Variscite, all
based on i.MX6
- Google Pixel Pro 6 phone based on gs101 (Tensor)
- Three additional variants of the i.MX8MP based "Skov" board
- A second variant of the i.MX95 EVK board
- Two boards based on Renesas SoCs
- Four boards based the Rockchip RK35xx series, plus the RK3588 'MNT
Reform 2' laptop"
* tag 'soc-dt-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (538 commits)
arm64: dts: Add gpio_intc node for Amlogic A5 SoCs
arm64: dts: Add gpio_intc node for Amlogic A4 SoCs
arm64: dts: hi3660: Add property for fixing CPUIdle
arm64: dts: rockchip: remove ethm0_clk0_25m_out from Sige5 gmac0
arm64: dts: marvell: Use preferred node names for "simple-bus"
arm64: dts: marvell: Drop unused CP11X_TYPE define
arm64: dts: marvell: Move arch timer and pmu nodes to top-level
arm64: dts: rockchip: Fix PWM pinctrl names
arm64: dts: rockchip: fix RK3576 SCMI clock IDs
dt-bindings: clock: rk3576: add SCMI clocks
arm64: dts: rockchip: Fix pcie reset gpio on Orange Pi 5 Max
arm64: dts: amd/seattle: Drop undocumented "spi-controller" properties
arm64: dts: amd/seattle: Fix bus, mmc, and ethernet node names
arm64: dts: amd/seattle: Move and simplify fixed clocks
arm64: dts: amd/seattle: Base Overdrive B1 on top of B0 version
arm64: dts: rockchip: Enable HDMI audio output for ArmSoM Sige7
arm64: dts: rockchip: Enable onboard eMMC on Radxa E20C
arm64: dts: rockchip: Add SDHCI controller for RK3528
arm64: dts: rockchip: Remove bluetooth node from rock-3a
arm64: dts: rockchip: Move rk356x scmi SHMEM to reserved memory
...
The Samsung ATNA40YK20 panel is a 14" AMOLED eDP panel. It is
similar to the ATNA33XC20 except that it is larger and has a
different resolution.
Signed-off-by: Christopher Obbard <christopher.obbard@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20250325-wip-obbardc-qcom-t14s-oled-panel-v2-1-e9bc7c9d30cc@linaro.org
tpm_ftpm_tee does not require chip->status, chip->cancel and
chip->req_canceled. Make them optional.
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@opinsys.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Add missing Markdown code span.
This was found using the Clippy `doc_markdown` lint, which we may want
to enable.
Fixes: cb5164ac43 ("drm/panic: Add a QR code panic screen")
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250324210359.1199574-3-ojeda@kernel.org
Add missing space in sentence.
This was found using the Clippy `doc_markdown` lint, which we may want
to enable.
Fixes: cb5164ac43 ("drm/panic: Add a QR code panic screen")
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250324210359.1199574-2-ojeda@kernel.org
Lazy flushing of TPM auth sessions can interact badly with IMA + kexec,
resulting in loaded session handles being leaked across the kexec and
not cleaned up. Fix by ensuring any active auth session is ended before
the TPM is told about the shutdown, matching what is done when
suspending.
Before:
root@debian-qemu-efi:~# tpm2_getcap handles-loaded-session
root@debian-qemu-efi:~# tpm2_getcap handles-saved-session
root@debian-qemu-efi:~# kexec --load --kexec-file-syscall …
root@debian-qemu-efi:~# systemctl kexec
…
root@debian-qemu-efi:~# tpm2_getcap handles-loaded-session
- 0x2000000
root@debian-qemu-efi:~# tpm2_getcap handles-saved-session
root@debian-qemu-efi:~#
(repeat kexec steps)
root@debian-qemu-efi:~# tpm2_getcap handles-loaded-session
- 0x2000000
- 0x2000001
root@debian-qemu-efi:~# tpm2_getcap handles-saved-session
root@debian-qemu-efi:~#
After:
root@debian-qemu-efi:~# tpm2_getcap handles-loaded-session
root@debian-qemu-efi:~# tpm2_getcap handles-saved-session
root@debian-qemu-efi:~# kexec --load --kexec-file-syscall …
root@debian-qemu-efi:~# systemctl kexec
…
root@debian-qemu-efi:~# tpm2_getcap handles-loaded-session
root@debian-qemu-efi:~# tpm2_getcap handles-saved-session
root@debian-qemu-efi:~#
Signed-off-by: Jonathan McDowell <noodles@meta.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Add documentation providing details of how the CRB driver interacts with
ARM FF-A.
[jarkko: Fine-tuned the commit message.]
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Stuart Yoder <stuart.yoder@arm.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
The TCG ACPI spec v1.4 defines a start method for the TPMs implemented with
the ARM CRB over FF-A ABI.
Add support for the FF-A start method, and use interfaces provided by the
ffa_crb driver to interact with the FF-A based TPM.
[jarkko: Fine-tuned the commit message.]
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Stuart Yoder <stuart.yoder@arm.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Refactor TPM idle check to tpm_crb_has_idle(), and reduce paraentheses
usage in start method checks
[jarkko: Fine-tuned the commit message.]
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Stuart Yoder <stuart.yoder@arm.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
The ARM specification TPM Service CRB over FF-A specification defines the
FF-A messages to interact with a CRB-based TPM implemented as an FF-A
secure partition.
See: https://developer.arm.com/documentation/den0138/latest/
This driver is probed when a TPM Secure Partition is discovered by the FF-A
subsystem. It exposes APIs used by the TPM CRB driver to send notifications
to the TPM.
[jarkko: Fine-tuned the commit message.]
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Stuart Yoder <stuart.yoder@arm.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
The `state` member in `struct ftpm_tee_private` is in the documentation,
but it has never been in the implementation since the commit 09e574831b
("tpm/tpm_ftpm_tee: A driver for firmware TPM running inside TEE") that
introduced it.
Remove it to have a match between documentation and implementation.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Some Infineon devices have a issue where the status register will get
stuck with a quick REQUEST_USE / COMMAND_READY sequence. This is not
simply a matter of requiring a longer timeout; the work around is to
retry the command submission. Add appropriate logic to do this in the
send path.
This is fixed in later firmware revisions, but those are not always
available, and cannot generally be easily updated from outside a
firmware environment.
Testing has been performed with a simple repeated loop of doing a
TPM2_CC_GET_CAPABILITY for TPM_CAP_PROP_MANUFACTURER using the Go code
at:
https://the.earth.li/~noodles/tpm-stuff/timeout-reproducer-simple.go
It can take several hours to reproduce, and several million operations.
Signed-off-by: Jonathan McDowell <noodles@meta.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
The change to only use interrupts to handle supported status changes
introduced an issue when it is necessary to poll for the status. Rather
than checking for the status after sleeping the code now sleeps after
the check. This means a correct, but slower, status change on the part
of the TPM can be missed, resulting in a spurious timeout error,
especially on a more loaded system. Switch back to sleeping *then*
checking. An up front check of the status has been done at the start of
the function, so this does not cause an additional delay when the status
is already what we're looking for.
Cc: stable@vger.kernel.org # v6.4+
Fixes: e87fcf0dc2 ("tpm, tpm_tis: Only handle supported interrupts")
Signed-off-by: Jonathan McDowell <noodles@meta.com>
Reviewed-by: Michal Suchánek <msuchanek@suse.de>
Reviewed-by: Lino Sanfilippo <l.sanfilippo@kunbus.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
TPM2 sessions have been flushed lazily since commit df745e2509 ("tpm:
Lazily flush the auth session"). If /dev/tpm{rm}0 is not accessed
in-between two in-kernel calls, it is possible that a TPM2 session is
re-started before the previous one has been completed.
This causes a spurios warning in a legit run-time condition, which is also
correctly addressed with a fast return path:
[ 2.944047] tpm tpm0: auth session is active
Address the issue by changing dev_warn_once() call to a dev_dbg_once()
call.
[jarkko: Rewrote the commit message, and instead of dropping converted
to a debug message.]
Signed-off-by: Jonathan McDowell <noodles@meta.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Lazy flushing of TPM auth sessions was introduced to speed up IMA
measurments into the TPM. Make use of it in tpm2_get_random as well,
which has the added benefit of not needlessly cleaning up the session
that IMA is using when there are no userspace accesses taking place.
Command trace before for every call:
hwrng (0x00000161): 14 (52965242 ns)
hwrng (0x00000176): 48 (161612432 ns)
hwrng (0x00000165): 10 (2410494 ns)
hwrng (0x0000017B): 117 (70699883 ns)
hwrng (0x0000017B): 117 (70959666 ns)
hwrng (0x00000165): 10 (2756827 ns)
After, with repeated calls showing no setup:
hwrng (0x00000161): 14 (53044582 ns)
hwrng (0x00000176): 48 (160491333 ns)
hwrng (0x00000165): 10 (2408220 ns)
hwrng (0x0000017B): 117 (70695037 ns)
hwrng (0x0000017B): 117 (70994984 ns)
hwrng (0x0000017B): 117 (70195388 ns)
hwrng (0x0000017B): 117 (70973835 ns)
Signed-off-by: Jonathan McDowell <noodles@meta.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Building with W=1 shows a warning about of_ftpm_tee_ids being unused when
CONFIG_OF is disabled:
drivers/char/tpm/tpm_ftpm_tee.c:356:34: error: unused variable 'of_ftpm_tee_ids' [-Werror,-Wunused-const-variable]
Drop the unnecessary of_match_ptr().
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sumit Garg <sumit.garg@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Handle missing parent directories for LOG_FILE path to prevent test
failures. If the parent directories don't exist, create them to ensure
the tests proceed successfully.
Cc: <warthog9@eaglescrag.net>
Link: https://lore.kernel.org/20250307043854.2518539-1-Ayush.jain3@amd.com
Signed-off-by: Ayush Jain <Ayush.jain3@amd.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Change the scope of the migrate subsystem to be dev managed instead of
drm managed.
The parent pci struct &device, that the xe struct &drm_device is a part
of, gets removed when a hot unplug is triggered, which causes the
underlying iommu group to get destroyed as well.
The migrate subsystem, which handles the lifetime of the page-table tree
(pt) BO, doesn't get a chance to keep the BO back during the hot unplug,
as all the references to DRM haven't been put back.
When all the references to DRM are indeed put back later, the migrate
subsystem tries to put back the pt BO. Since the underlying iommu group
has been already destroyed, a kernel NULL ptr dereference takes place
while attempting to keep back the pt BO.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/3914
Suggested-by: Thomas Hellstrom <thomas.hellstrom@intel.com>
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250326151929.1495972-1-aradhya.bhatia@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Remove hard-coded strings by using the str_enabled_disabled() helper
function.
Acked-by: Bruno Faccini <bfaccini@nvidia.com>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
xfstests generic/730 test failed because after deleting the device
that still had dirty data, the file could still be read without
returning an error. The reason is the missing shutdown check in
->read_iter.
I also noticed that shutdown checks were missing from ->write_iter,
->splice_read, and ->mmap. This commit adds shutdown checks to all
of them.
Fixes: f761fcdd28 ("exfat: Implement sops->shutdown and ioctl")
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
In exfat_find_last_cluster(), the cluster chain is traversed until
the EOF cluster. If the cluster chain includes a loop due to file
system corruption, the EOF cluster cannot be traversed, resulting
in an infinite loop.
If the number of clusters indicated by the file size is inconsistent
with the cluster chain length, exfat_find_last_cluster() will return
an error, so if this inconsistency is found, the traversal can be
aborted without traversing to the EOF cluster.
Reported-by: syzbot+f7d147e6db52b1e09dba@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=f7d147e6db52b1e09dba
Tested-by: syzbot+f7d147e6db52b1e09dba@syzkaller.appspotmail.com
Fixes: 31023864e6 ("exfat: add fat entry operations")
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
When get_block is called with a buffer_head allocated on the stack, such
as do_mpage_readpage, stack corruption due to buffer_head UAF may occur in
the following race condition situation.
<CPU 0> <CPU 1>
mpage_read_folio
<<bh on stack>>
do_mpage_readpage
exfat_get_block
bh_read
__bh_read
get_bh(bh)
submit_bh
wait_on_buffer
...
end_buffer_read_sync
__end_buffer_read_notouch
unlock_buffer
<<keep going>>
...
...
...
...
<<bh is not valid out of mpage_read_folio>>
.
.
another_function
<<variable A on stack>>
put_bh(bh)
atomic_dec(bh->b_count)
* stack corruption here *
This patch returns -EAGAIN if a folio does not have buffers when bh_read
needs to be called. By doing this, the caller can fallback to functions
like block_read_full_folio(), create a buffer_head in the folio, and then
call get_block again.
Let's do not call bh_read() with on-stack buffer_head.
Fixes: 11a347fb6c ("exfat: change to get file size from DataLength")
Cc: stable@vger.kernel.org
Tested-by: Yeongjin Gil <youngjin.gil@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
The callback function statfs() is called only after the file
system is mounted. During the process of mounting the exFAT
file system, the number of used clusters has been counted, so
the condition "sbi->used_clusters == EXFAT_CLUSTERS_UNTRACKED"
is always false and should be deleted.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
If the discard mount option is enabled, the file's clusters are
discarded when the clusters are freed. Discarding clusters one by
one will significantly reduce performance. Poor performance may
cause soft lockup when lots of clusters are freed.
This commit improves performance by discarding contiguous clusters
in batches.
Measure the performance by:
# truncate -s 80G /mnt/file
# time rm /mnt/file
Without this commit:
real 4m46.183s
user 0m0.000s
sys 0m12.863s
With this commit:
real 0m1.661s
user 0m0.000s
sys 0m0.017s
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Possible loss of data from u32 to u8 conversions.
ACPICA commit 1d7a0aa04793ff731da13f2070877ec7a9498571
Link: 1d7a0aa0
Signed-off-by: Saket Dumbre <saket.dumbre@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/2304653.iZASKD2KPV@rjwysocki.net
