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The following warning:
Documentation/admin-guide/hw-vuln/cross-thread-rsb.rst:92: ERROR: Unexpected indentation.
was introduced by commit 493a2c2d23ca. Fix it by placing everything in
the same paragraph and also use a monospace font.
Fixes: 493a2c2d23ca ("Documentation/hw-vuln: Add documentation for Cross-Thread Return Predictions")
Reported-by: Stephen Rothwell <sfr@canb@auug.org.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 5b4e9a7a71ab ("net: ethtool: extend ringparam set/get APIs for rx_push")
added a new attr for configuring rx-push, right after tx-push.
Add it to the spec, the ring param operation is covered by
the otherwise sparse ethtool spec.
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://lore.kernel.org/r/20230214043246.230518-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
MultiPort E-Switch builds on newer hardware's capabilities and introduces
a mode where a single E-Switch is used and all the vports and physical
ports on the NIC are connected to it.
The new mode will allow in the future a decrease in the memory used by the
driver and advanced features that aren't possible today.
This represents a big change in the current E-Switch implantation in mlx5.
Currently, by default, each E-Switch manager manages its E-Switch.
Steering rules in each E-Switch can only forward traffic to the native
physical port associated with that E-Switch. While there are ways to target
non-native physical ports, for example using a bond or via special TC
rules. None of the ways allows a user to configure the driver
to operate by default in such a mode nor can the driver decide
to move to this mode by default as it's user configuration-driven right now.
While MultiPort E-Switch single FDB mode is the preferred mode, older
generations of ConnectX hardware couldn't support this mode so it was never
implemented. Now that there is capable hardware present, start the
transition to having this mode by default.
Introduce a devlink parameter to control MultiPort E-Switch single FDB mode.
This will allow users to select this mode on their system right now
and in the future will allow the driver to move to this mode by default.
Example:
$ devlink dev param set pci/0000:00:0b.0 name esw_multiport value 1 \
cmode runtime
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
predictions bug. When running in SMT mode and one of the sibling threads
transitions out of C0 state, the other thread gets access to twice as many
entries in the RSB, but unfortunately the predictions of the now-halted
logical processor are not purged. Therefore, the executing processor
could speculatively execute from locations that the now-halted processor
had trained the RSB on.
The Spectre v2 mitigations cover the Linux kernel, as it fills the RSB
when context switching to the idle thread. However, KVM allows a VMM to
prevent exiting guest mode when transitioning out of C0 using the
KVM_CAP_X86_DISABLE_EXITS capability can be used by a VMM to change this
behavior. To mitigate the cross-thread return address predictions bug,
a VMM must not be allowed to override the default behavior to intercept
C0 transitions.
These patches introduce a KVM module parameter that, if set, will prevent
the user from disabling the HLT, MWAIT and CSTATE exits.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Certain AMD processors are vulnerable to a cross-thread return address
predictions bug. When running in SMT mode and one of the sibling
threads transitions out of C0 state, the other thread gets access to
twice as many entries in the RSB, but unfortunately the predictions of
the now-halted logical processor are not purged. Therefore, the
executing processor could speculatively execute from locations that
the now-halted processor had trained the RSB on.
The Spectre v2 mitigations cover the Linux kernel, as it fills the RSB
when context switching to the idle thread. However, KVM allows a VMM
to prevent exiting guest mode when transitioning out of C0 using the
KVM_CAP_X86_DISABLE_EXITS capability can be used by a VMM to change
this behavior. To mitigate the cross-thread return address predictions
bug, a VMM must not be allowed to override the default behavior to
intercept C0 transitions.
These patches introduce a KVM module parameter that, if set, will
prevent the user from disabling the HLT, MWAIT and CSTATE exits"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
Documentation/hw-vuln: Add documentation for Cross-Thread Return Predictions
KVM: x86: Mitigate the cross-thread return address predictions bug
x86/speculation: Identify processors vulnerable to SMT RSB predictions
Clarify the Explicit and Implicit meanings in the table of Pull Bias.
While at it, distinguish pull bias keywords used in ACPI by using bold
font in the table of the respective terms.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Add missing 'cache-unified' property in example for kryo OPP bindings
(Rob Herring).
- Fix error checking in opp_migrate_dentry() (Qi Zheng).
- Remove "select SRCU" (Paul E. McKenney).
- Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
Dybcio).
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Merge tag 'opp-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull OPP (Operating Performance Points) updates for 6.3 from Viresh
Kumar:
"- Add missing 'cache-unified' property in example for kryo OPP bindings
(Rob Herring).
- Fix error checking in opp_migrate_dentry() (Qi Zheng).
- Remove "select SRCU" (Paul E. McKenney).
- Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
Dybcio)."
* tag 'opp-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
OPP: fix error checking in opp_migrate_dentry()
dt-bindings: opp: v2-qcom-level: Let qcom,opp-fuse-level be a 2-long array
drivers/opp: Remove "select SRCU"
dt-bindings: opp: opp-v2-kryo-cpu: Add missing 'cache-unified' property in example
- Enable thermal cooling for Tegra194 (Yi-Wei Wang).
- Register module device table and add missing compatibles for
cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss).
- Various dt binding updates for qcom-cpufreq-nvmem and opp-v2-kryo-cpu
(Christian Marangi).
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Merge tag 'cpufreq-arm-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull cpufreq ARM updates for 6.3 from Viresh Kumar:
"- Enable thermal cooling for Tegra194 (Yi-Wei Wang).
- Register module device table and add missing compatibles for
cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss).
- Various dt binding updates for qcom-cpufreq-nvmem and opp-v2-kryo-cpu
(Christian Marangi)."
* tag 'cpufreq-arm-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
dt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum
dt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr bindings optional
dt-bindings: cpufreq: qcom-cpufreq-nvmem: specify supported opp tables
dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM8550 compatible
dt-bindings: cpufreq: cpufreq-qcom-hw: Add missing compatibles
cpufreq: mediatek-hw: Register to module device table
cpufreq: tegra194: Enable CPUFREQ thermal cooling
Fix inaccurate information about PHY muxing, and merge standalone and
multi-chip module MT7530 configuration methods.
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230212131258.47551-1-arinc.unal@arinc9.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Enlarge opp-supported-hw maximum value. In recent SoC we started
matching more bit and we currently match mask of 112. The old maximum of
7 was good for old SoC that didn't had complex id, but now this is
limiting and we need to enlarge it to support more variants.
Document all the various mask that can be used and limit them to only
reasonable values instead of using a generic maximum limit.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
The qcom-cpufreq-nvmem driver supports 2 kind of devices:
- pre-cpr that doesn't have power-domains and base everything on nvmem
cells and multiple named microvolt bindings.
Doesn't need required-opp binding in the opp nodes as they are only
used for genpd based devices.
- cpr-based that require power-domain in the cpu nodes and use various
source to decide the correct voltage and freq
Require required-opp binding since they need to be linked to the
related opp-level.
When the schema was introduced, it was wrongly set to always require these
binding but this is not the case for pre-cpr devices.
Make the power-domain and the required-opp optional and set them required
only for qcs404 based devices.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Add additional info on what opp tables the defined devices in this schema
supports (operating-points-v2-kryo-cpu and operating-points-v2-qcom-level)
and reference them.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
It is difficult to intuit the semantics of owning and non-owning
references from verifier code. In order to keep the high-level details
from being lost in the mailing list, this patch adds documentation
explaining semantics and details.
The target audience of doc added in this patch is folks working on BPF
internals, as there's focus on "what should the verifier do here". Via
reorganization or copy-and-paste, much of the content can probably be
repurposed for BPF program writer audience as well.
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Link: https://lore.kernel.org/r/20230214004017.2534011-9-davemarchevsky@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This pull request contains the following:
o Improvements to clocksource-watchdog console messages.
o Loosening of the clocksource-watchdog skew criteria to match
those of NTP (500 parts per million, relaxed from 400 parts
per million). If it is good enough for NTP, it is good enough
for the clocksource watchdog.
o Suspend clocksource-watchdog checking temporarily when high
memory latencies are detected. This avoids the false-positive
clock-skew events that have been seen on production systems
running memory-intensive workloads.
o On systems where the TSC is deemed trustworthy, use it as the
watchdog timesource, but only when specifically requested using
the tsc=watchdog kernel boot parameter. This permits clock-skew
events to be detected, but avoids forcing workloads to use the
slow HPET and ACPI PM timers. These last two timers are slow
enough to cause systems to be needlessly marked bad on the one
hand, and real skew does sometimes happen on production systems
running production workloads on the other. And sometimes it is
the fault of the TSC, or at least of the firmware that told the
kernel to program the TSC with the wrong frequency.
o Add a tsc=revalidate kernel boot parameter to allow the kernel
to diagnose cases where the TSC hardware works fine, but was told
by firmware to tick at the wrong frequency. Such cases are rare,
but they really have happened on production systems.
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Merge tag 'clocksource.2023.02.06b' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into timers/core
Pull clocksource watchdog changes from Paul McKenney:
o Improvements to clocksource-watchdog console messages.
o Loosening of the clocksource-watchdog skew criteria to match
those of NTP (500 parts per million, relaxed from 400 parts
per million). If it is good enough for NTP, it is good enough
for the clocksource watchdog.
o Suspend clocksource-watchdog checking temporarily when high
memory latencies are detected. This avoids the false-positive
clock-skew events that have been seen on production systems
running memory-intensive workloads.
o On systems where the TSC is deemed trustworthy, use it as the
watchdog timesource, but only when specifically requested using
the tsc=watchdog kernel boot parameter. This permits clock-skew
events to be detected, but avoids forcing workloads to use the
slow HPET and ACPI PM timers. These last two timers are slow
enough to cause systems to be needlessly marked bad on the one
hand, and real skew does sometimes happen on production systems
running production workloads on the other. And sometimes it is
the fault of the TSC, or at least of the firmware that told the
kernel to program the TSC with the wrong frequency.
o Add a tsc=revalidate kernel boot parameter to allow the kernel
to diagnose cases where the TSC hardware works fine, but was told
by firmware to tick at the wrong frequency. Such cases are rare,
but they really have happened on production systems.
Link: https://lore.kernel.org/r/20230210193640.GA3325193@paulmck-ThinkPad-P17-Gen-1
ath.git patches for v6.3. Major changes:
ath12k
* new driver for Qualcomm Wi-Fi 7 devices
ath11k
* IPQ5018 support
* Fine Timing Measurement (FTM) responder role support
* channel 177 support
ath10k
* store WLAN firmware version in SMEM image table
The Marvell SD8978 (aka NXP IW416) uses identical registers as SD8987,
so reuse the existing mwifiex_reg_sd8987 definition.
Note that mwifiex_reg_sd8977 and mwifiex_reg_sd8997 are likewise
identical, save for the fw_dump_ctrl register: They define it as 0xf0
whereas mwifiex_reg_sd8987 defines it as 0xf9. I've verified that
0xf9 is the correct value on SD8978. NXP's out-of-tree driver uses
0xf9 for all of them, so there's a chance that 0xf0 is not correct
in the mwifiex_reg_sd8977 and mwifiex_reg_sd8997 definitions. I cannot
test that for lack of hardware, hence am leaving it as is.
NXP has only released a firmware which runs Bluetooth over UART.
Perhaps Bluetooth over SDIO is unsupported by this chipset.
Consequently, only an "sdiouart" firmware image is referenced, not an
alternative "sdsd" image.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/536b4f17a72ca460ad1b07045757043fb0778988.1674827105.git.lukas@wunner.de
Minor cleanups:
- Drop redundant blank lines,
- Correct indentaion in examples,
- Correct node names in examples to drop underscore and use generic
name.
No functional impact except adjusting to preferred coding style.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230118175413.360153-1-krzysztof.kozlowski@linaro.org
Texts in numbered lists are rendered as continous paragraph when there
should have been breaks between first line text in the beginning of list
item and the description. Fix this by adding appropriate line breaks and
indent the rest of lines to match the first line of numbered list item.
Fixes: d6d71ee4a14ae6 ("PM: Introduce Intel PowerClamp Driver")
Fixes: 6bbe6f5732faea ("docs: thermal: convert to ReST")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
kernel test robot reported htmldocs warning:
Documentation/admin-guide/thermal/intel_powerclamp.rst:328: WARNING: Inline emphasis start-string without end-string.
The mistaken asterisk in /proc/irq/*/smp_affinity is rendered as hyperlink
as the result.
Escape the asterisk to fix above warning.
Link: https://lore.kernel.org/linux-doc/202302122247.N4S791c4-lkp@intel.com/
Fixes: ebf51971021881 ("thermal: intel: powerclamp: Add two module parameters")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The new Qualcomm QDU1000 and QRU1000 platforms, and the IDP device on
these are introduced. New support for a couple of USB modem sticks from
THWC are introduced, so is support for Xiaomi Mi Pad 5 Pro and the Pro
SKU of the Herobrine device.
The Core Bus Fabric (CBF) is introduced on MSM8996. Interconnect paths
for UFS are also described.
A few fixes related to the power-grid of herobrine, on SC7280, are
introduced.
QFPROM is introduced on IPQ8074 and Interconnect providers are added for
SDM670.
On SDM845 the duplicated wcd9340 audio coded description is moved from
devices to a common file, audio devices are added to the OnePlus 6 and
6T.
On SM6115 debug UART, SMP2P, watchdog nodes are introduced, and the
platform is switched to use #address/size-cells of 2, in line with most
other platforms.
Camera control interface and clock controllers are added for SM6350, and
the CCI interface is enabled on the Fairphone FP4.
On SM8350 the interconnect reference of SDHCI controller is corrected,
DSI1 PHY clocks are properly described as sources for the Display clock
controller and DSI1 is wired up to the display controller.
The firmware paths are corrected for the Sony Xperia Nagara platform.
The GPR bus, audio servic3es and LPASS pinctrl nodes are added for the
SM8550 platform. Additionally a few small typos/errors are corrected.
gpio-ranges are corrected across MSM8953, SM6115 and SC8280XP and a
range of DT validation issues are corrected.
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Merge tag 'qcom-arm64-for-6.3-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt
More Qualcomm ARM64 DT updates for 6.3
The new Qualcomm QDU1000 and QRU1000 platforms, and the IDP device on
these are introduced. New support for a couple of USB modem sticks from
THWC are introduced, so is support for Xiaomi Mi Pad 5 Pro and the Pro
SKU of the Herobrine device.
The Core Bus Fabric (CBF) is introduced on MSM8996. Interconnect paths
for UFS are also described.
A few fixes related to the power-grid of herobrine, on SC7280, are
introduced.
QFPROM is introduced on IPQ8074 and Interconnect providers are added for
SDM670.
On SDM845 the duplicated wcd9340 audio coded description is moved from
devices to a common file, audio devices are added to the OnePlus 6 and
6T.
On SM6115 debug UART, SMP2P, watchdog nodes are introduced, and the
platform is switched to use #address/size-cells of 2, in line with most
other platforms.
Camera control interface and clock controllers are added for SM6350, and
the CCI interface is enabled on the Fairphone FP4.
On SM8350 the interconnect reference of SDHCI controller is corrected,
DSI1 PHY clocks are properly described as sources for the Display clock
controller and DSI1 is wired up to the display controller.
The firmware paths are corrected for the Sony Xperia Nagara platform.
The GPR bus, audio servic3es and LPASS pinctrl nodes are added for the
SM8550 platform. Additionally a few small typos/errors are corrected.
gpio-ranges are corrected across MSM8953, SM6115 and SC8280XP and a
range of DT validation issues are corrected.
* tag 'qcom-arm64-for-6.3-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (81 commits)
arm64: dts: qcom: sc7280: Power herobrine's 3.3 eDP/TS rail more properly
arm64: dts: qcom: pmk8550: fix PON compatible
arm64: dts: qcom: sm8550: fix DSI controller compatible
arm64: dts: qcom: sc7280: Hook up the touchscreen IO rail on evoker
arm64: dts: qcom: sc7280: Hook up the touchscreen IO rail on villager
arm64: dts: qcom: sc7280: Add 3ms ramp to herobrine's pp3300_left_in_mlb
arm64: dts: qcom: sc7280: On QCard, regulator L3C should be 1.8V
arm64: dts: qcom: sc8280xp: correct LPASS GPIO gpio-ranges
arm64: dts: qcom: msm8992-lg-bullhead: Enable regulators
arm64: dts: qcom: sm6115: correct TLMM gpio-ranges
arm64: dts: qcom: msm8953: correct TLMM gpio-ranges
arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlaps with the SMEM and MPSS memory regions
arm64: dts: qcom: sm8350-hdk: correct LT9611 pin function
arm64: dts: qcom: sm8350-hdk: align pin config node names with bindings
arm64: dts: qcom: sm6350: Use specific qmpphy compatible
arm64: dts: qcom: sm6115: Add smp2p nodes
arm64: dts: qcom: sm7225-fairphone-fp4: Enable CCI busses
arm64: dts: qcom: sm6350: Add CCI nodes
arm64: dts: qcom: sm6350: Add camera clock controller
dt-bindings: clock: add QCOM SM6350 camera clock bindings
...
Link: https://lore.kernel.org/r/20230210192908.2039976-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
T-Head C906/C910 CLINT is not compliant to SiFive ones (and even not
compliant to the newcoming ACLINT spec) because of lack of mtime
register.
Add a compatible string formatted like the C9xx-specific PLIC
compatible, and do not allow a SiFive one as fallback because they're
not really compliant.
Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230202072814.319903-1-uwu@icenowy.me
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Add binding description for mediatek,mt8365-systimer
Signed-off-by: Bernhard Rosenkränzer <bero@baylibre.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230125143503.1015424-8-bero@baylibre.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
We add DT bindings for a separate RISC-V timer DT node which can
be used to describe implementation specific behaviour (such as
timer interrupt not triggered during non-retentive suspend).
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/20230103141102.772228-3-apatel@ventanamicro.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
Add description for new attributes added for rack manager switch and
NG800 family systems.
Attributes related to power converter board:
- reset_pwr_converter_fail;
- pwr_converter_prog_en;
Attributes related to External Root of Trust (EROT) devices recovery:
- erot1_ap_reset;
- erot2_ap_reset;
- erot1_recovery;
- erot2_recovery;
- erot1_reset;
- erot2_reset;
- erot1_wp;
- erot2_wp;
- spi_chnl_select;
Attributes related to clock board failures and recovery:
- clk_brd1_boot_fail;
- clk_brd2_boot_fail;
- clk_brd_fail;
- clk_brd_prog_en;
Attributes related to power failures:
- reset_ac_ok_fail;
- asic_pg_fail;
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230208063331.15560-14-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Similar to what was done for TX_PUSH, add an RX_PUSH concept
to the ethtool interfaces.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
/proc/xen is a legacy pseudo filesystem which predates Xen support
getting merged into Linux. It has largely been replaced with more
normal locations for data (/sys/hypervisor/ for info, /dev/xen/ for
user devices). We want to compile xenfs support out of the dom0 kernel.
There is one item which only exists in /proc/xen, namely
/proc/xen/capabilities with "control_d" being the signal of "you're in
the control domain". This ultimately comes from the SIF flags provided
at VM start.
This patch exposes all SIF flags in /sys/hypervisor/start_flags/ as
boolean files, one for each bit, returning '1' if set, '0' otherwise.
Two known flags, 'privileged' and 'initdomain', are explicitly named,
and all remaining flags can be accessed via generically named files,
as suggested by Andrew Cooper.
Signed-off-by: Per Bilse <per.bilse@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20230103130213.2129753-1-per.bilse@citrix.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Add new kernel parameter cgroup.memory=nobpf to allow user disable bpf
memory accounting. This is a preparation for the followup patch.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Link: https://lore.kernel.org/r/20230210154734.4416-2-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Daniel Borkmann says:
====================
pull-request: bpf-next 2023-02-11
We've added 96 non-merge commits during the last 14 day(s) which contain
a total of 152 files changed, 4884 insertions(+), 962 deletions(-).
There is a minor conflict in drivers/net/ethernet/intel/ice/ice_main.c
between commit 5b246e533d01 ("ice: split probe into smaller functions")
from the net-next tree and commit 66c0e13ad236 ("drivers: net: turn on
XDP features") from the bpf-next tree. Remove the hunk given ice_cfg_netdev()
is otherwise there a 2nd time, and add XDP features to the existing
ice_cfg_netdev() one:
[...]
ice_set_netdev_features(netdev);
netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
NETDEV_XDP_ACT_XSK_ZEROCOPY;
ice_set_ops(netdev);
[...]
Stephen's merge conflict mail:
https://lore.kernel.org/bpf/20230207101951.21a114fa@canb.auug.org.au/
The main changes are:
1) Add support for BPF trampoline on s390x which finally allows to remove many
test cases from the BPF CI's DENYLIST.s390x, from Ilya Leoshkevich.
2) Add multi-buffer XDP support to ice driver, from Maciej Fijalkowski.
3) Add capability to export the XDP features supported by the NIC.
Along with that, add a XDP compliance test tool,
from Lorenzo Bianconi & Marek Majtyka.
4) Add __bpf_kfunc tag for marking kernel functions as kfuncs,
from David Vernet.
5) Add a deep dive documentation about the verifier's register
liveness tracking algorithm, from Eduard Zingerman.
6) Fix and follow-up cleanups for resolve_btfids to be compiled
as a host program to avoid cross compile issues,
from Jiri Olsa & Ian Rogers.
7) Batch of fixes to the BPF selftest for xdp_hw_metadata which resulted
when testing on different NICs, from Jesper Dangaard Brouer.
8) Fix libbpf to better detect kernel version code on Debian, from Hao Xiang.
9) Extend libbpf to add an option for when the perf buffer should
wake up, from Jon Doron.
10) Follow-up fix on xdp_metadata selftest to just consume on TX
completion, from Stanislav Fomichev.
11) Extend the kfuncs.rst document with description on kfunc
lifecycle & stability expectations, from David Vernet.
12) Fix bpftool prog profile to skip attaching to offline CPUs,
from Tonghao Zhang.
====================
Link: https://lore.kernel.org/r/20230211002037.8489-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Correct spelling problems for Documentation/isdn/ as reported
by codespell.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230209071400.31476-9-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* arm64/for-next/perf:
perf: arm_spe: Print the version of SPE detected
perf: arm_spe: Add support for SPEv1.2 inverted event filtering
perf: Add perf_event_attr::config3
drivers/perf: fsl_imx8_ddr_perf: Remove set-but-not-used variable
perf: arm_spe: Support new SPEv1.2/v8.7 'not taken' event
perf: arm_spe: Use new PMSIDR_EL1 register enums
perf: arm_spe: Drop BIT() and use FIELD_GET/PREP accessors
arm64/sysreg: Convert SPE registers to automatic generation
arm64: Drop SYS_ from SPE register defines
perf: arm_spe: Use feature numbering for PMSEVFR_EL1 defines
perf/marvell: Add ACPI support to TAD uncore driver
perf/marvell: Add ACPI support to DDR uncore driver
perf/arm-cmn: Reset DTM_PMU_CONFIG at probe
drivers/perf: hisi: Extract initialization of "cpa_pmu->pmu"
drivers/perf: hisi: Simplify the parameters of hisi_pmu_init()
drivers/perf: hisi: Advertise the PERF_PMU_CAP_NO_EXCLUDE capability
* for-next/sysreg:
: arm64 sysreg and cpufeature fixes/updates
KVM: arm64: Use symbolic definition for ISR_EL1.A
arm64/sysreg: Add definition of ISR_EL1
arm64/sysreg: Add definition for ICC_NMIAR1_EL1
arm64/cpufeature: Remove 4 bit assumption in ARM64_FEATURE_MASK()
arm64/sysreg: Fix errors in 32 bit enumeration values
arm64/cpufeature: Fix field sign for DIT hwcap detection
* for-next/sme:
: SME-related updates
arm64/sme: Optimise SME exit on syscall entry
arm64/sme: Don't use streaming mode to probe the maximum SME VL
arm64/ptrace: Use system_supports_tpidr2() to check for TPIDR2 support
* for-next/kselftest: (23 commits)
: arm64 kselftest fixes and improvements
kselftest/arm64: Don't require FA64 for streaming SVE+ZA tests
kselftest/arm64: Copy whole EXTRA context
kselftest/arm64: Fix enumeration of systems without 128 bit SME for SSVE+ZA
kselftest/arm64: Fix enumeration of systems without 128 bit SME
kselftest/arm64: Don't require FA64 for streaming SVE tests
kselftest/arm64: Limit the maximum VL we try to set via ptrace
kselftest/arm64: Correct buffer size for SME ZA storage
kselftest/arm64: Remove the local NUM_VL definition
kselftest/arm64: Verify simultaneous SSVE and ZA context generation
kselftest/arm64: Verify that SSVE signal context has SVE_SIG_FLAG_SM set
kselftest/arm64: Remove spurious comment from MTE test Makefile
kselftest/arm64: Support build of MTE tests with clang
kselftest/arm64: Initialise current at build time in signal tests
kselftest/arm64: Don't pass headers to the compiler as source
kselftest/arm64: Remove redundant _start labels from FP tests
kselftest/arm64: Fix .pushsection for strings in FP tests
kselftest/arm64: Run BTI selftests on systems without BTI
kselftest/arm64: Fix test numbering when skipping tests
kselftest/arm64: Skip non-power of 2 SVE vector lengths in fp-stress
kselftest/arm64: Only enumerate power of two VLs in syscall-abi
...
* for-next/misc:
: Miscellaneous arm64 updates
arm64/mm: Intercept pfn changes in set_pte_at()
Documentation: arm64: correct spelling
arm64: traps: attempt to dump all instructions
arm64: Apply dynamic shadow call stack patching in two passes
arm64: el2_setup.h: fix spelling typo in comments
arm64: Kconfig: fix spelling
arm64: cpufeature: Use kstrtobool() instead of strtobool()
arm64: Avoid repeated AA64MMFR1_EL1 register read on pagefault path
arm64: make ARCH_FORCE_MAX_ORDER selectable
* for-next/sme2: (23 commits)
: Support for arm64 SME 2 and 2.1
arm64/sme: Fix __finalise_el2 SMEver check
kselftest/arm64: Remove redundant _start labels from zt-test
kselftest/arm64: Add coverage of SME 2 and 2.1 hwcaps
kselftest/arm64: Add coverage of the ZT ptrace regset
kselftest/arm64: Add SME2 coverage to syscall-abi
kselftest/arm64: Add test coverage for ZT register signal frames
kselftest/arm64: Teach the generic signal context validation about ZT
kselftest/arm64: Enumerate SME2 in the signal test utility code
kselftest/arm64: Cover ZT in the FP stress test
kselftest/arm64: Add a stress test program for ZT0
arm64/sme: Add hwcaps for SME 2 and 2.1 features
arm64/sme: Implement ZT0 ptrace support
arm64/sme: Implement signal handling for ZT
arm64/sme: Implement context switching for ZT0
arm64/sme: Provide storage for ZT0
arm64/sme: Add basic enumeration for SME2
arm64/sme: Enable host kernel to access ZT0
arm64/sme: Manually encode ZT0 load and store instructions
arm64/esr: Document ISS for ZT0 being disabled
arm64/sme: Document SME 2 and SME 2.1 ABI
...
* for-next/tpidr2:
: Include TPIDR2 in the signal context
kselftest/arm64: Add test case for TPIDR2 signal frame records
kselftest/arm64: Add TPIDR2 to the set of known signal context records
arm64/signal: Include TPIDR2 in the signal context
arm64/sme: Document ABI for TPIDR2 signal information
* for-next/scs:
: arm64: harden shadow call stack pointer handling
arm64: Stash shadow stack pointer in the task struct on interrupt
arm64: Always load shadow stack pointer directly from the task struct
* for-next/compat-hwcap:
: arm64: Expose compat ARMv8 AArch32 features (HWCAPs)
arm64: Add compat hwcap SSBS
arm64: Add compat hwcap SB
arm64: Add compat hwcap I8MM
arm64: Add compat hwcap ASIMDBF16
arm64: Add compat hwcap ASIMDFHM
arm64: Add compat hwcap ASIMDDP
arm64: Add compat hwcap FPHP and ASIMDHP
* for-next/ftrace:
: Add arm64 support for DYNAMICE_FTRACE_WITH_CALL_OPS
arm64: avoid executing padding bytes during kexec / hibernation
arm64: Implement HAVE_DYNAMIC_FTRACE_WITH_CALL_OPS
arm64: ftrace: Update stale comment
arm64: patching: Add aarch64_insn_write_literal_u64()
arm64: insn: Add helpers for BTI
arm64: Extend support for CONFIG_FUNCTION_ALIGNMENT
ACPI: Don't build ACPICA with '-Os'
Compiler attributes: GCC cold function alignment workarounds
ftrace: Add DYNAMIC_FTRACE_WITH_CALL_OPS
* for-next/efi-boot-mmu-on:
: Permit arm64 EFI boot with MMU and caches on
arm64: kprobes: Drop ID map text from kprobes blacklist
arm64: head: Switch endianness before populating the ID map
efi: arm64: enter with MMU and caches enabled
arm64: head: Clean the ID map and the HYP text to the PoC if needed
arm64: head: avoid cache invalidation when entering with the MMU on
arm64: head: record the MMU state at primary entry
arm64: kernel: move identity map out of .text mapping
arm64: head: Move all finalise_el2 calls to after __enable_mmu
* for-next/ptrauth:
: arm64 pointer authentication cleanup
arm64: pauth: don't sign leaf functions
arm64: unify asm-arch manipulation
* for-next/pseudo-nmi:
: Pseudo-NMI code generation optimisations
arm64: irqflags: use alternative branches for pseudo-NMI logic
arm64: add ARM64_HAS_GIC_PRIO_RELAXED_SYNC cpucap
arm64: make ARM64_HAS_GIC_PRIO_MASKING depend on ARM64_HAS_GIC_CPUIF_SYSREGS
arm64: rename ARM64_HAS_IRQ_PRIO_MASKING to ARM64_HAS_GIC_PRIO_MASKING
arm64: rename ARM64_HAS_SYSREG_GIC_CPUIF to ARM64_HAS_GIC_CPUIF_SYSREGS
Add the admin guide for the Cross-Thread Return Predictions vulnerability.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <60f9c0b4396956ce70499ae180cb548720b25c7e.1675956146.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Change kernel version from 5.20 to 6.0, as 5.20 is not a release.
Signed-off-by: Meadhbh Fitzpatrick <meadhbh.fitzpatrick@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
If RPS is enabled, this allows configuring a default rps
mask, which is effective since receive queue creation time.
A default RPS mask allows the system admin to ensure proper
isolation, avoiding races at network namespace or device
creation time.
The default RPS mask is initially empty, and can be
modified via a newly added sysctl entry.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/devlink/leftover.c / net/core/devlink.c:
565b4824c39f ("devlink: change port event netdev notifier from per-net to global")
f05bd8ebeb69 ("devlink: move code to a dedicated directory")
687125b5799c ("devlink: split out core code")
https://lore.kernel.org/all/20230208094657.379f2b1a@canb.auug.org.au/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In some use cases, it is desirable to only inject idle on certain set
of CPUs. For example on Alder Lake systems, it is possible that we force
idle only on P-Cores for thermal reasons. Also the idle percent can be
more than 50% if we only choose partial set of CPUs in the system.
Introduce 2 new module parameters for this purpose. They can be only
changed when the cooling device is inactive.
cpumask (Read/Write): A bit mask of CPUs to inject idle. The format of
this bitmask is same as used in other subsystems like in
/proc/irq/*/smp_affinity. The mask is comma separated 32 bit groups.
Each CPU is one bit. For example for 256 CPU system the full mask is:
ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff
The rightmost mask is for CPU 0-32.
max_idle (Read/Write): Maximum injected idle time to the total CPU time
ratio in percent range from 1 to 100. Even if the cooling device max_state
is always 100 (100%), this parameter allows to add a max idle percent
limit. The default is 50, to match the current implementation of powerclamp
driver. Also doesn't allow value more than 75, if the cpumask includes
every CPU present in the system.
Also when the cpumask doesn't include every CPU, there is no use of
compensation using package C-state idle counters. Hence don't start
package C-state polling thread even for a single package or a single die
system in this case.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Create a folder "thermal" under Documentation/admin-guide and move
intel_powerclamp documentation to this folder.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ipsec subtrees
Current release - regressions:
- sched: fix off by one in htb_activate_prios()
- eth: mana: fix accessing freed irq affinity_hint
- eth: ice: fix out-of-bounds KASAN warning in virtchnl
Current release - new code bugs:
- eth: mtk_eth_soc: enable special tag when any MAC uses DSA
Previous releases - always broken:
- core: fix sk->sk_txrehash default
- neigh: make sure used and confirmed times are valid
- mptcp: be careful on subflow status propagation on errors
- xfrm: prevent potential spectre v1 gadget in xfrm_xlate32_attr()
- phylink: move phy_device_free() to correctly release phy device
- eth: mlx5:
- fix crash unsetting rx-vlan-filter in switchdev mode
- fix hang on firmware reset
- serialize module cleanup with reload and remove
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from can and ipsec subtrees.
Current release - regressions:
- sched: fix off by one in htb_activate_prios()
- eth: mana: fix accessing freed irq affinity_hint
- eth: ice: fix out-of-bounds KASAN warning in virtchnl
Current release - new code bugs:
- eth: mtk_eth_soc: enable special tag when any MAC uses DSA
Previous releases - always broken:
- core: fix sk->sk_txrehash default
- neigh: make sure used and confirmed times are valid
- mptcp: be careful on subflow status propagation on errors
- xfrm: prevent potential spectre v1 gadget in xfrm_xlate32_attr()
- phylink: move phy_device_free() to correctly release phy device
- eth: mlx5:
- fix crash unsetting rx-vlan-filter in switchdev mode
- fix hang on firmware reset
- serialize module cleanup with reload and remove"
* tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
selftests: forwarding: lib: quote the sysctl values
net: mscc: ocelot: fix all IPv6 getting trapped to CPU when PTP timestamping is used
rds: rds_rm_zerocopy_callback() use list_first_entry()
net: txgbe: Update support email address
selftests: Fix failing VXLAN VNI filtering test
selftests: mptcp: stop tests earlier
selftests: mptcp: allow more slack for slow test-case
mptcp: be careful on subflow status propagation on errors
mptcp: fix locking for in-kernel listener creation
mptcp: fix locking for setsockopt corner-case
mptcp: do not wait for bare sockets' timeout
net: ethernet: mtk_eth_soc: fix DSA TX tag hwaccel for switch port 0
nfp: ethtool: fix the bug of setting unsupported port speed
txhash: fix sk->sk_txrehash default
net: ethernet: mtk_eth_soc: fix wrong parameters order in __xdp_rxq_info_reg()
net: ethernet: mtk_eth_soc: enable special tag when any MAC uses DSA
net: sched: sch: Fix off by one in htb_activate_prios()
igc: Add ndo_tx_timeout support
net: mana: Fix accessing freed irq affinity_hint
hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC
...
It contains:
- cleanups arround flexcom nodes on SAM9X60 SoC as follows:
- preserve same ID for flexcoms and the embedded nodes (e.g. flx4
will embed uart4, spi4, i2c4 but not e.g. uart1, spi2, i2c3);
- SoC specific bindings were moved from board specific file to SoC
specific file
- DMA bindings for all flexcom nodes were added
- SoC file was filled with missing flexcom nodes
- new SAM9X60 Curiosity board that contains 1 uSDcard interface, 1 SDcard
interface, 1 USB device interface, 2 USB Type-A interfaces, 2 CAN
interfaces, 1 10/100 Ethernet interface, 1 LCD RGB666 interface,
1 Gb DDR2, 4 Gb NAND Flash, 2Kb EEPROM, leds, button, power
regulators, UART and JTAG connectors
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Merge tag 'at91-dt-6.3-2' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/dt
AT91 device tree updates for 6.3 #2
It contains:
- cleanups arround flexcom nodes on SAM9X60 SoC as follows:
- preserve same ID for flexcoms and the embedded nodes (e.g. flx4
will embed uart4, spi4, i2c4 but not e.g. uart1, spi2, i2c3);
- SoC specific bindings were moved from board specific file to SoC
specific file
- DMA bindings for all flexcom nodes were added
- SoC file was filled with missing flexcom nodes
- new SAM9X60 Curiosity board that contains 1 uSDcard interface, 1 SDcard
interface, 1 USB device interface, 2 USB Type-A interfaces, 2 CAN
interfaces, 1 10/100 Ethernet interface, 1 LCD RGB666 interface,
1 Gb DDR2, 4 Gb NAND Flash, 2Kb EEPROM, leds, button, power
regulators, UART and JTAG connectors
* tag 'at91-dt-6.3-2' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
ARM: dts: at91: sam9x60_curiosity: Add device tree for sam9x60 curiosity board
dt-bindings: arm: at91: Add info on sam9x60 curiosity
ARM: dts: at91: sam9x60: Add missing flexcom definitions
ARM: dts: at91: sam9x60: Add DMA bindings for the flexcom nodes
ARM: dts: at91: sam9x60: Specify the FIFO size for the Flexcom UART
ARM: dts: at91: sam9x60: fix spi4 node
ARM: dts: at91: sam9x60: move flexcom definitions
ARM: dts: at91: sam9x60: Fix the label numbering for the flexcom functions
Link: https://lore.kernel.org/r/20230209084930.289721-1-claudiu.beznea@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add device tree bindings for camera clock controller for
Qualcomm Technology Inc's SM6350 SoC.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221213152617.296426-1-konrad.dybcio@linaro.org
