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Avoid possible bugs where the wrong index is passed with the cpu_map.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tidy up the use of cpu and index to hopefully make the code less error
prone. Avoid unused warnings with (void) which will be removed in a
later patch.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The cpu_map and index can get confused. Add variants of the cpu_map__get
routines that are passed a cpu. Make the existing cpu_map__get routines
use the new functions with a view to remove them when no longer used.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
A particular observed problem is confusing the index with the CPU value,
documentation should hopefully reduce this type of problem.
Reviewed-by: James Clark <james.clark@arm.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When a group has multiple events and the leader fails it can yield
errors like:
$ perf stat -e '{uncore_imc/cas_count_read/},instructions' /bin/true
Error:
The sys_perf_event_open() syscall returned with 22 (Invalid argument) for event (uncore_imc/cas_count_read/).
/bin/dmesg | grep -i perf may provide additional information.
However, when not the group leader <not supported> is given:
$ perf stat -e '{instructions,uncore_imc/cas_count_read/}' /bin/true
...
1,619,057 instructions
<not supported> MiB uncore_imc/cas_count_read/
This is necessary because get_group_fd will fail if the leader fails and
is the direct result of the check on line 750 of builtin-stat.c in
stat_handle_error that returns COUNTER_SKIP for the latter case.
This patch improves the error message to:
$ perf stat -e '{uncore_imc/cas_count_read/},instructions' /bin/true
Error:
Invalid event (uncore_imc/cas_count_read/) in per-thread mode, enable system wide with '-a'.
v2. Changed the test to use !target__has_cpu as suggested by Namhyung Kim.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20211223183948.3423989-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Uncore events as group leaders fail in per-thread mode causing exit
errors. Enable system-wide for metricgroup testing. This fixes the HPC
metric group when tested on skylakex.
Fixes: 4a87dea9e60fe100 ("perf test: Workload test of metric and metricgroups")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20211223183948.3423989-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'integrity-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity subsystem updates from Mimi Zohar:
"The few changes are all kexec related:
- The MOK keys are loaded onto the .platform keyring in order to
verify the kexec kernel image signature.
However, the MOK keys should only be trusted when secure boot is
enabled. Before loading the MOK keys onto the .platform keyring,
make sure the system is booted in secure boot mode.
- When carrying the IMA measurement list across kexec, limit dumping
the measurement list to when dynamic debug or CONFIG_DEBUG is
enabled.
- kselftest: add kexec_file_load selftest support for PowerNV and
other cleanup"
* tag 'integrity-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
selftests/kexec: Enable secureboot tests for PowerPC
ima: silence measurement list hexdump during kexec
selftests/kexec: update searching for the Kconfig
selftest/kexec: fix "ignored null byte in input" warning
integrity: Do not load MOK and MOKx when secure boot be disabled
ima: Fix undefined arch_ima_get_secureboot() and co
- new testing module: gpio-sim that is scheduled to replace gpio-mockup
- initial changes aiming at converting all GPIO drivers to using the fwnode
interface and limiting any references to OF symbols to gpiolib-of.c
- add support for Tegra234 and Tegra241 to gpio-tegra186
- add support for new models (SSD201 and SSD202D) to gpio-msc313
- add basic support for interrupts to gpio-aggregator
- add support for AMDIF031 HID device to gpio-amdpt
- drop support for unused platforms in gpio-xlp
- cleanup leftovers from the removal of the legacy Samsung Exynos GPIO driver
- use raw spinlocks in gpio-aspeed and gpio-aspeed-sgpio to make PREEMPT_RT
happy
- generalize the common 'ngpios' device property by reading it in the core
gpiolib code so that we can remove duplicate reads from drivers
- allow line names from device properties to override names set by drivers
- code shrink in gpiod_add_lookup_table()
- add new model to the DT bindings for gpio-vf610
- convert DT bindings for tegra devices to YAML
- improvements to interrupt handling in gpio-rcar and gpio-rockchip
- updates to intel drivers from Andy (details in the merge commit)
- some minor tweaks, improvements and coding-style fixes all around the
subsystem
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Merge tag 'gpio-updates-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"The gpio-sim module is back, this time without any changes to
configfs. This results in a less elegant user-space interface but I
never got any follow-up on the committable items and didn't want to
delay this module for several more months.
Other than that we have support for several new models and some
support going away. We started working on converting GPIO drivers to
using fwnode exclusively in order to limit references to OF symbols to
gpiolib-of.c exclusively. We also have regular tweaks and improvements
all over the place.
Summary:
- new testing module: gpio-sim that is scheduled to replace
gpio-mockup
- initial changes aiming at converting all GPIO drivers to using the
fwnode interface and limiting any references to OF symbols to
gpiolib-of.c
- add support for Tegra234 and Tegra241 to gpio-tegra186
- add support for new models (SSD201 and SSD202D) to gpio-msc313
- add basic support for interrupts to gpio-aggregator
- add support for AMDIF031 HID device to gpio-amdpt
- drop support for unused platforms in gpio-xlp
- cleanup leftovers from the removal of the legacy Samsung Exynos
GPIO driver
- use raw spinlocks in gpio-aspeed and gpio-aspeed-sgpio to make
PREEMPT_RT happy
- generalize the common 'ngpios' device property by reading it in the
core gpiolib code so that we can remove duplicate reads from
drivers
- allow line names from device properties to override names set by
drivers
- code shrink in gpiod_add_lookup_table()
- add new model to the DT bindings for gpio-vf610
- convert DT bindings for tegra devices to YAML
- improvements to interrupt handling in gpio-rcar and gpio-rockchip
- updates to intel drivers from Andy (details in the merge commit)
- some minor tweaks, improvements and coding-style fixes all around
the subsystem"
* tag 'gpio-updates-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (59 commits)
gpio: rcar: Propagate errors from devm_request_irq()
gpio: rcar: Use platform_get_irq() to get the interrupt
gpio: ts5500: Use platform_get_irq() to get the interrupt
gpio: dwapb: Switch to use fwnode instead of of_node
gpiolib: acpi: make fwnode take precedence in struct gpio_chip
dt-bindings: gpio: samsung: drop unused bindings
gpio: max3191x: Use bitmap_free() to free bitmap
gpio: regmap: Switch to use fwnode instead of of_node
gpio: tegra186: Add support for Tegra241
dt-bindings: gpio: Add Tegra241 support
gpio: brcmstb: Use local variable to access OF node
gpio: Remove unused local OF node pointers
gpio: sim: add missing fwnode_handle_put() in gpio_sim_probe()
gpio: msc313: Add support for SSD201 and SSD202D
gpio: msc313: Code clean ups
dt-bindings: gpio: msc313: Add offsets for ssd20xd
dt-bindings: gpio: msc313: Add compatible for ssd20xd
gpio: sim: fix uninitialized ret variable
gpio: Propagate firmware node from a parent device
gpio: Setup parent device and get rid of unnecessary of_node assignment
...
Highlights:
- new drivers:
- asus-tf103c-dock
- intel_crystal_cove_charger
- lenovo-yogabook-wmi
- simatic-ipc platform-code + led driver + watchdog driver
- x86-android-tablets (kernel module to workaround DSDT bugs on these)
- amd-pmc:
- bug-fixes
- smar trace buffer support
- asus-wmi: support for custom fan curves
- int3472 (camera info ACPI object for Intel IPU3/SkyCam cameras):
- ACPI core + int3472 changes to delay enumeration of camera sensor I2C
clients until the PMIC for the sensor has been fully probed
- Add support for board data (DSDT info is incomplete) for setting up
the tps68470 PMIC used on some boards with these cameras
- Add board data for the Microsoft Surface Go (original, v2 and v3)
- thinkpad_acpi:
- various cleanups
- support for forced battery discharging (for battery calibration)
- support to inhibit battery charging
- this includes power_supply core changes to add new APIs for this
- think_lmi: enhanced BIOS password support
- various other small fixes and hardware-id additions
The following is an automated git shortlog grouped by driver:
ACPI:
- delay enumeration of devices with a _DEP pointing to an INT3472 device
Add Asus TF103C dock driver:
- Add Asus TF103C dock driver
Add intel_crystal_cove_charger driver:
- Add intel_crystal_cove_charger driver
Documentation:
- syfs-class-firmware-attributes: Lenovo Opcode support
Merge tag 'platform-drivers-x86-int3472-1' into review-hans:
- Merge tag 'platform-drivers-x86-int3472-1' into review-hans
amd-pmc:
- only use callbacks for suspend
- Add support for AMD Smart Trace Buffer
- Simplify error handling and store the pci_dev in amd_pmc_dev structure
- Fix s2idle failures on certain AMD laptops
- Make CONFIG_AMD_PMC depend on RTC_CLASS
apple-gmux:
- use resource_size() with res
asus-wmi:
- Reshuffle headers for better maintenance
- Split MODULE_AUTHOR() on per author basis
- Join string literals back
- remove unneeded semicolon
- Add support for custom fan curves
dell-wmi-descriptor:
- disable by default
hp_accel:
- Use SIMPLE_DEV_PM_OPS() for PM ops
- Fix an error handling path in 'lis3lv02d_probe()'
i2c:
- acpi: Add i2c_acpi_new_device_by_fwnode() function
- acpi: Use acpi_dev_ready_for_enumeration() helper
int3472:
- Add board data for Surface Go 3
- Deal with probe ordering issues
- Pass tps68470_regulator_platform_data to the tps68470-regulator MFD-cell
- Pass tps68470_clk_platform_data to the tps68470-regulator MFD-cell
- Add get_sensor_adev_and_name() helper
- Split into 2 drivers
intel-uncore-frequency:
- use default_groups in kobj_type
intel_pmc_core:
- fix memleak on registration failure
leds:
- simatic-ipc-leds: add new driver for Siemens Industial PCs
lenovo-yogabook-wmi:
- Add support for hall sensor on the back
- Add driver for Lenovo Yoga Book
lg-laptop:
- Recognize more models
platform:
- surface: Propagate ACPI Dependency
platform/mellanox:
- mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters
- mlxreg-lc: fix error code in mlxreg_lc_create_static_devices()
platform/surface:
- aggregator_registry: Rename device registration function
- aggregator_registry: Use generic client removal function
- aggregator: Make client device removal more generic
platform/x86/intel:
- Remove X86_PLATFORM_DRIVERS_INTEL
- hid: add quirk to support Surface Go 3
platform_data:
- Add linux/platform_data/tps68470.h file
pmc_atom:
- improve critclk_systems matching for Siemens PCs
power:
- supply: Provide stubs for charge_behaviour helpers
- supply: fix charge_behaviour attribute initialization
- supply: add helpers for charge_behaviour sysfs
- supply: add charge_behaviour attributes
samsung-laptop:
- Fix typo in a comment
simatic-ipc:
- add main driver for Siemens devices
system76_acpi:
- Guard System76 EC specific functionality
think-lmi:
- Prevent underflow in index_store()
- Simplify tlmi_analyze() error handling a bit
- Move kobject_init() call into tlmi_create_auth()
- Opcode support
- Abort probe on analyze failure
thinkpad_acpi:
- support inhibit-charge
- support force-discharge
- Add lid_logo_dot to the list of safe LEDs
- Add LED_RETAIN_AT_SHUTDOWN to led_class_devs
- Remove unused sensors_pdev_attrs_registered flag
- Fix the hwmon sysfs-attr showing up in the wrong place
- tpacpi_attr_group contains driver attributes not device attrs
- Register tpacpi_pdriver after subdriver init
- Restore missing hotkey_tablet_mode and hotkey_radio_sw sysfs-attr
- Fix thermal_temp_input_attr sorting
- Remove "goto err_exit" from hotkey_init()
- Properly indent code in tpacpi_dytc_profile_init()
- Cleanup dytc_profile_available
- Simplify dytc_version handling
- Make *_init() functions return -ENODEV instead of 1
- Accept ibm_init_struct.init() returning -ENODEV
- Convert platform driver to use dev_groups
- fix documentation for adaptive keyboard
- Fix WWAN device disabled issue after S3 deep
- Add support for dual fan control
tools/power/x86/intel-speed-select:
- v1.11 release
- Update max frequency
touchscreen_dmi:
- Remove the Glavey TM800A550L entry
- Enable pen support on the Chuwi Hi10 Plus and Pro
- Correct min/max values for Chuwi Hi10 Pro (CWI529) tablet
- Add TrekStor SurfTab duo W1 touchscreen info
watchdog:
- simatic-ipc-wdt: add new driver for Siemens Industrial PCs
wmi:
- Add no_notify_data flag to struct wmi_driver
- Fix driver->notify() vs ->probe() race
- Replace read_takes_no_args with a flags field
x86-android-tablets:
- Fix GPIO lookup leak on error-exit
- Add TM800A550L data
- Add Asus MeMO Pad 7 ME176C data
- Add Asus TF103C data
- Add support for preloading modules
- Add support for registering GPIO lookup tables
- Add support for instantiating serdevs
- Add support for instantiating platform-devs
- Add support for PMIC interrupts
- Don't return -EPROBE_DEFER from a non probe() function
- New driver for x86 Android tablets
x86/platform/uv:
- use default_groups in kobj_type
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Merge tag 'platform-drivers-x86-v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"Highlights:
New drivers:
- asus-tf103c-dock
- intel_crystal_cove_charger
- lenovo-yogabook-wmi
- simatic-ipc platform-code + led driver + watchdog driver
- x86-android-tablets (kernel module to workaround DSDT bugs on
these)
amd-pmc:
- bug-fixes
- smar trace buffer support
asus-wmi:
- support for custom fan curves
int3472 (camera info ACPI object for Intel IPU3/SkyCam cameras):
- ACPI core + int3472 changes to delay enumeration of camera sensor
I2C clients until the PMIC for the sensor has been fully probed
- Add support for board data (DSDT info is incomplete) for setting up
the tps68470 PMIC used on some boards with these cameras
- Add board data for the Microsoft Surface Go (original, v2 and v3)
thinkpad_acpi:
- various cleanups
- support for forced battery discharging (for battery calibration)
- support to inhibit battery charging
- this includes power_supply core changes to add new APIs for this
think_lmi:
- enhanced BIOS password support
various other small fixes and hardware-id additions"
* tag 'platform-drivers-x86-v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (78 commits)
power: supply: Provide stubs for charge_behaviour helpers
platform/x86: x86-android-tablets: Fix GPIO lookup leak on error-exit
platform/x86: int3472: Add board data for Surface Go 3
platform/x86: Add Asus TF103C dock driver
platform/x86: x86-android-tablets: Add TM800A550L data
platform/x86: x86-android-tablets: Add Asus MeMO Pad 7 ME176C data
platform/x86: x86-android-tablets: Add Asus TF103C data
platform/x86: x86-android-tablets: Add support for preloading modules
platform/x86: x86-android-tablets: Add support for registering GPIO lookup tables
platform/x86: x86-android-tablets: Add support for instantiating serdevs
platform/x86: x86-android-tablets: Add support for instantiating platform-devs
platform/x86: x86-android-tablets: Add support for PMIC interrupts
platform/x86: x86-android-tablets: Don't return -EPROBE_DEFER from a non probe() function
platform/x86: touchscreen_dmi: Remove the Glavey TM800A550L entry
platform/x86: touchscreen_dmi: Enable pen support on the Chuwi Hi10 Plus and Pro
platform/x86: touchscreen_dmi: Correct min/max values for Chuwi Hi10 Pro (CWI529) tablet
platform/x86: Add intel_crystal_cove_charger driver
power: supply: fix charge_behaviour attribute initialization
platform/x86: intel-uncore-frequency: use default_groups in kobj_type
x86/platform/uv: use default_groups in kobj_type
...
This series provides KCSAN fixes and also the ability to take memory
barriers into account for weakly-ordered systems. This last can increase
the probability of detecting certain types of data races.
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Merge tag 'kcsan.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull KCSAN updates from Paul McKenney:
"This provides KCSAN fixes and also the ability to take memory barriers
into account for weakly-ordered systems. This last can increase the
probability of detecting certain types of data races"
* tag 'kcsan.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (29 commits)
kcsan: Only test clear_bit_unlock_is_negative_byte if arch defines it
kcsan: Avoid nested contexts reading inconsistent reorder_access
kcsan: Turn barrier instrumentation into macros
kcsan: Make barrier tests compatible with lockdep
kcsan: Support WEAK_MEMORY with Clang where no objtool support exists
compiler_attributes.h: Add __disable_sanitizer_instrumentation
objtool, kcsan: Remove memory barrier instrumentation from noinstr
objtool, kcsan: Add memory barrier instrumentation to whitelist
sched, kcsan: Enable memory barrier instrumentation
mm, kcsan: Enable barrier instrumentation
x86/qspinlock, kcsan: Instrument barrier of pv_queued_spin_unlock()
x86/barriers, kcsan: Use generic instrumentation for non-smp barriers
asm-generic/bitops, kcsan: Add instrumentation for barriers
locking/atomics, kcsan: Add instrumentation for barriers
locking/barriers, kcsan: Support generic instrumentation
locking/barriers, kcsan: Add instrumentation for barriers
kcsan: selftest: Add test case to check memory barrier instrumentation
kcsan: Ignore GCC 11+ warnings about TSan runtime support
kcsan: test: Add test cases for memory barrier instrumentation
kcsan: test: Match reordered or normal accesses
...
Add a check to the xdp_link selftest that the kernel rejects replacing an
XDP program with a different program type on link update.
v2:
- Split this out into its own patch.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20220107221115.326171-3-toke@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Convert the selftest to use the preferred ASSERT_* macros instead of the
deprecated CHECK().
v2:
- Don't add if statements around checks if they weren't there before.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20220107221115.326171-2-toke@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This series contains documentation and litmus tests for locking, courtesy
of Boqun Feng.
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Merge tag 'lkmm.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull memory model documentation updates from Paul McKenney:
"This series contains documentation and litmus tests for locking,
courtesy of Boqun Feng"
* tag 'lkmm.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
tools/memory-model: litmus: Add two tests for unlock(A)+lock(B) ordering
tools/memory-model: doc: Describe the requirement of the litmus-tests directory
tools/memory-model: Provide extra ordering for unlock+lock pair on the same CPU
This pull request contains the following branches:
doc.2021.11.30c: Documentation updates, perhaps most notably Neil Brown's
writeup of the reference-counting analogy to RCU.
exp.2021.12.07a: Expedited grace-period cleanups.
fastnohz.2021.11.30c: Remove CONFIG_RCU_FAST_NO_HZ due to lack of valid
users. I have asked around, posted a blog entry, and sent this
series to LKML without result.
fixes.2021.11.30c: Miscellaneous fixes.
nocb.2021.12.09a: RCU callback offloading updates, perhaps most notably
Frederic Weisbecker's updates allowing CPUs booted in the
de-offloaded state to be offloaded at runtime.
nolibc.2021.11.30c: nolibc fixes from Willy Tarreau and Anmar Faizi, but
also including Mark Brown's addition of gettid().
tasks.2021.12.09a: RCU Tasks Trace fixes, including changes that increase
the scalability of call_rcu_tasks_trace() for the BPF folks
(Martin Lau and KP Singh).
torture.2021.12.07a: Various fixes including those from Wander Lairson
Costa and Li Zhijian.
torturescript.2021.11.30c: Fixes plus addition of tests for the increased
call_rcu_tasks_trace() scalability.
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Merge tag 'rcu.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull RCU updates from Paul McKenney:
- Documentation updates, perhaps most notably Neil Brown's writeup of
the reference-counting analogy to RCU.
- Expedited grace-period cleanups.
- Remove CONFIG_RCU_FAST_NO_HZ due to lack of valid users. I have asked
around, posted a blog entry, and sent this series to LKML without
result.
- Miscellaneous fixes.
- RCU callback offloading updates, perhaps most notably Frederic
Weisbecker's updates allowing CPUs booted in the de-offloaded state
to be offloaded at runtime.
- nolibc fixes from Willy Tarreau and Anmar Faizi, but also including
Mark Brown's addition of gettid().
- RCU Tasks Trace fixes, including changes that increase the
scalability of call_rcu_tasks_trace() for the BPF folks (Martin Lau
and KP Singh).
- Various fixes including those from Wander Lairson Costa and Li
Zhijian.
- Fixes plus addition of tests for the increased call_rcu_tasks_trace()
scalability.
* tag 'rcu.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (87 commits)
rcu/nocb: Merge rcu_spawn_cpu_nocb_kthread() and rcu_spawn_one_nocb_kthread()
rcu/nocb: Allow empty "rcu_nocbs" kernel parameter
rcu/nocb: Create kthreads on all CPUs if "rcu_nocbs=" or "nohz_full=" are passed
rcu/nocb: Optimize kthreads and rdp initialization
rcu/nocb: Prepare nocb_cb_wait() to start with a non-offloaded rdp
rcu/nocb: Remove rcu_node structure from nocb list when de-offloaded
rcu-tasks: Use fewer callbacks queues if callback flood ends
rcu-tasks: Use separate ->percpu_dequeue_lim for callback dequeueing
rcu-tasks: Use more callback queues if contention encountered
rcu-tasks: Avoid raw-spinlocked wakeups from call_rcu_tasks_generic()
rcu-tasks: Count trylocks to estimate call_rcu_tasks() contention
rcu-tasks: Add rcupdate.rcu_task_enqueue_lim to set initial queueing
rcu-tasks: Make rcu_barrier_tasks*() handle multiple callback queues
rcu-tasks: Use workqueues for multiple rcu_tasks_invoke_cbs() invocations
rcu-tasks: Abstract invocations of callbacks
rcu-tasks: Abstract checking of callback lists
rcu-tasks: Add a ->percpu_enqueue_lim to the rcu_tasks structure
rcu-tasks: Inspect stalled task's trc state in locked state
rcu-tasks: Use spin_lock_rcu_node() and friends
rcutorture: Combine n_max_cbs from all kthreads in a callback flood
...
- Add new TSU driver and DT bindings for the Renesas RZ/G2L platform
(Biju Das).
- Fix missing check when calling reset_control_deassert() in the
rz2gl thermal driver (Biju Das).
- In preparation for FORTIFY_SOURCE performing compile-time and
run-time field bounds checking for memcpy(), avoid intentionally
writing across neighboring fields in the int340x thermal control
driver (Kees Cook).
- Fix RFIM mailbox write commands handling in the int340x thermal
control driver (Sumeet Pawnikar).
- Fix PM issue occurring in the iMX thermal control driver during
suspend/resume by implementing PM runtime support in it (Oleksij
Rempel).
- Add 'const' annotation to thermal_cooling_ops in the Intel
powerclamp driver (Rikard Falkeborn).
- Fix missing ADC bit set in the iMX8MP thermal driver to enable the
sensor (Paul Gerber).
- Drop unused local variable definition from tmon (ran jianping).
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Merge tag 'thermal-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add a new driver for Renesas RZ/G2L TSU, update a few existing
thermal control drivers and clean up the tmon utility.
Specifics:
- Add new TSU driver and DT bindings for the Renesas RZ/G2L platform
(Biju Das).
- Fix missing check when calling reset_control_deassert() in the
rz2gl thermal driver (Biju Das).
- In preparation for FORTIFY_SOURCE performing compile-time and
run-time field bounds checking for memcpy(), avoid intentionally
writing across neighboring fields in the int340x thermal control
driver (Kees Cook).
- Fix RFIM mailbox write commands handling in the int340x thermal
control driver (Sumeet Pawnikar).
- Fix PM issue occurring in the iMX thermal control driver during
suspend/resume by implementing PM runtime support in it (Oleksij
Rempel).
- Add 'const' annotation to thermal_cooling_ops in the Intel
powerclamp driver (Rikard Falkeborn).
- Fix missing ADC bit set in the iMX8MP thermal driver to enable the
sensor (Paul Gerber).
- Drop unused local variable definition from tmon (ran jianping)"
* tag 'thermal-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal/drivers/int340x: Fix RFIM mailbox write commands
thermal/drivers/rz2gl: Add error check for reset_control_deassert()
thermal/drivers/imx8mm: Enable ADC when enabling monitor
thermal/drivers: Add TSU driver for RZ/G2L
dt-bindings: thermal: Document Renesas RZ/G2L TSU
thermal/drivers/intel_powerclamp: Constify static thermal_cooling_device_ops
thermal/drivers/imx: Implement runtime PM support
thermal: tools: tmon: remove unneeded local variable
thermal: int340x: Use struct_group() for memcpy() region
Core
----
- Defer freeing TCP skbs to the BH handler, whenever possible,
or at least perform the freeing outside of the socket lock section
to decrease cross-CPU allocator work and improve latency.
- Add netdevice refcount tracking to locate sources of netdevice
and net namespace refcount leaks.
- Make Tx watchdog less intrusive - avoid pausing Tx and restarting
all queues from a single CPU removing latency spikes.
- Various small optimizations throughout the stack from Eric Dumazet.
- Make netdev->dev_addr[] constant, force modifications to go via
appropriate helpers to allow us to keep addresses in ordered data
structures.
- Replace unix_table_lock with per-hash locks, improving performance
of bind() calls.
- Extend skb drop tracepoint with a drop reason.
- Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW.
BPF
---
- New helpers:
- bpf_find_vma(), find and inspect VMAs for profiling use cases
- bpf_loop(), runtime-bounded loop helper trading some execution
time for much faster (if at all converging) verification
- bpf_strncmp(), improve performance, avoid compiler flakiness
- bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt()
for tracing programs, all inlined by the verifier
- Support BPF relocations (CO-RE) in the kernel loader.
- Further the support for BTF_TYPE_TAG annotations.
- Allow access to local storage in sleepable helpers.
- Convert verifier argument types to a composable form with different
attributes which can be shared across types (ro, maybe-null).
- Prepare libbpf for upcoming v1.0 release by cleaning up APIs,
creating new, extensible ones where missing and deprecating those
to be removed.
Protocols
---------
- WiFi (mac80211/cfg80211):
- notify user space about long "come back in N" AP responses,
allow it to react to such temporary rejections
- allow non-standard VHT MCS 10/11 rates
- use coarse time in airtime fairness code to save CPU cycles
- Bluetooth:
- rework of HCI command execution serialization to use a common
queue and work struct, and improve handling errors reported
in the middle of a batch of commands
- rework HCI event handling to use skb_pull_data, avoiding packet
parsing pitfalls
- support AOSP Bluetooth Quality Report
- SMC:
- support net namespaces, following the RDMA model
- improve connection establishment latency by pre-clearing buffers
- introduce TCP ULP for automatic redirection to SMC
- Multi-Path TCP:
- support ioctls: SIOCINQ, OUTQ, and OUTQNSD
- support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT,
IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY
- support cmsgs: TCP_INQ
- improvements in the data scheduler (assigning data to subflows)
- support fastclose option (quick shutdown of the full MPTCP
connection, similar to TCP RST in regular TCP)
- MCTP (Management Component Transport) over serial, as defined by
DMTF spec DSP0253 - "MCTP Serial Transport Binding".
Driver API
----------
- Support timestamping on bond interfaces in active/passive mode.
- Introduce generic phylink link mode validation for drivers which
don't have any quirks and where MAC capability bits fully express
what's supported. Allow PCS layer to participate in the validation.
Convert a number of drivers.
- Add support to set/get size of buffers on the Rx rings and size of
the tx copybreak buffer via ethtool.
- Support offloading TC actions as first-class citizens rather than
only as attributes of filters, improve sharing and device resource
utilization.
- WiFi (mac80211/cfg80211):
- support forwarding offload (ndo_fill_forward_path)
- support for background radar detection hardware
- SA Query Procedures offload on the AP side
New hardware / drivers
----------------------
- tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with
real-time requirements for isochronous communication with protocols
like OPC UA Pub/Sub.
- Qualcomm BAM-DMUX WWAN - driver for data channels of modems
integrated into many older Qualcomm SoCs, e.g. MSM8916 or
MSM8974 (qcom_bam_dmux).
- Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch
driver with support for bridging, VLANs and multicast forwarding
(lan966x).
- iwlmei driver for co-operating between Intel's WiFi driver and
Intel's Active Management Technology (AMT) devices.
- mse102x - Vertexcom MSE102x Homeplug GreenPHY chips
- Bluetooth:
- MediaTek MT7921 SDIO devices
- Foxconn MT7922A
- Realtek RTL8852AE
Drivers
-------
- Significantly improve performance in the datapaths of:
lan78xx, ax88179_178a, lantiq_xrx200, bnxt.
- Intel Ethernet NICs:
- igb: support PTP/time PEROUT and EXTTS SDP functions on
82580/i354/i350 adapters
- ixgbevf: new PF -> VF mailbox API which avoids the risk of
mailbox corruption with ESXi
- iavf: support configuration of VLAN features of finer granularity,
stacked tags and filtering
- ice: PTP support for new E822 devices with sub-ns precision
- ice: support firmware activation without reboot
- Mellanox Ethernet NICs (mlx5):
- expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
- support TC forwarding when tunnel encap and decap happen between
two ports of the same NIC
- dynamically size and allow disabling various features to save
resources for running in embedded / SmartNIC scenarios
- Broadcom Ethernet NICs (bnxt):
- use page frag allocator to improve Rx performance
- expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
- Other Ethernet NICs:
- amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support
- Microsoft cloud/virtual NIC (mana):
- add XDP support (PASS, DROP, TX)
- Mellanox Ethernet switches (mlxsw):
- initial support for Spectrum-4 ASICs
- VxLAN with IPv6 underlay
- Marvell Ethernet switches (prestera):
- support flower flow templates
- add basic IP forwarding support
- NXP embedded Ethernet switches (ocelot & felix):
- support Per-Stream Filtering and Policing (PSFP)
- enable cut-through forwarding between ports by default
- support FDMA to improve packet Rx/Tx to CPU
- Other embedded switches:
- hellcreek: improve trapping management (STP and PTP) packets
- qca8k: support link aggregation and port mirroring
- Qualcomm 802.11ax WiFi (ath11k):
- qca6390, wcn6855: enable 802.11 power save mode in station mode
- BSS color change support
- WCN6855 hw2.1 support
- 11d scan offload support
- scan MAC address randomization support
- full monitor mode, only supported on QCN9074
- qca6390/wcn6855: report signal and tx bitrate
- qca6390: rfkill support
- qca6390/wcn6855: regdb.bin support
- Intel WiFi (iwlwifi):
- support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS)
in cooperation with the BIOS
- support for Optimized Connectivity Experience (OCE) scan
- support firmware API version 68
- lots of preparatory work for the upcoming Bz device family
- MediaTek WiFi (mt76):
- Specific Absorption Rate (SAR) support
- mt7921: 160 MHz channel support
- RealTek WiFi (rtw88):
- Specific Absorption Rate (SAR) support
- scan offload
- Other WiFi NICs
- ath10k: support fetching (pre-)calibration data from nvmem
- brcmfmac: configure keep-alive packet on suspend
- wcn36xx: beacon filter support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core
----
- Defer freeing TCP skbs to the BH handler, whenever possible, or at
least perform the freeing outside of the socket lock section to
decrease cross-CPU allocator work and improve latency.
- Add netdevice refcount tracking to locate sources of netdevice and
net namespace refcount leaks.
- Make Tx watchdog less intrusive - avoid pausing Tx and restarting
all queues from a single CPU removing latency spikes.
- Various small optimizations throughout the stack from Eric Dumazet.
- Make netdev->dev_addr[] constant, force modifications to go via
appropriate helpers to allow us to keep addresses in ordered data
structures.
- Replace unix_table_lock with per-hash locks, improving performance
of bind() calls.
- Extend skb drop tracepoint with a drop reason.
- Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW.
BPF
---
- New helpers:
- bpf_find_vma(), find and inspect VMAs for profiling use cases
- bpf_loop(), runtime-bounded loop helper trading some execution
time for much faster (if at all converging) verification
- bpf_strncmp(), improve performance, avoid compiler flakiness
- bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt()
for tracing programs, all inlined by the verifier
- Support BPF relocations (CO-RE) in the kernel loader.
- Further the support for BTF_TYPE_TAG annotations.
- Allow access to local storage in sleepable helpers.
- Convert verifier argument types to a composable form with different
attributes which can be shared across types (ro, maybe-null).
- Prepare libbpf for upcoming v1.0 release by cleaning up APIs,
creating new, extensible ones where missing and deprecating those
to be removed.
Protocols
---------
- WiFi (mac80211/cfg80211):
- notify user space about long "come back in N" AP responses,
allow it to react to such temporary rejections
- allow non-standard VHT MCS 10/11 rates
- use coarse time in airtime fairness code to save CPU cycles
- Bluetooth:
- rework of HCI command execution serialization to use a common
queue and work struct, and improve handling errors reported in
the middle of a batch of commands
- rework HCI event handling to use skb_pull_data, avoiding packet
parsing pitfalls
- support AOSP Bluetooth Quality Report
- SMC:
- support net namespaces, following the RDMA model
- improve connection establishment latency by pre-clearing buffers
- introduce TCP ULP for automatic redirection to SMC
- Multi-Path TCP:
- support ioctls: SIOCINQ, OUTQ, and OUTQNSD
- support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT,
IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY
- support cmsgs: TCP_INQ
- improvements in the data scheduler (assigning data to subflows)
- support fastclose option (quick shutdown of the full MPTCP
connection, similar to TCP RST in regular TCP)
- MCTP (Management Component Transport) over serial, as defined by
DMTF spec DSP0253 - "MCTP Serial Transport Binding".
Driver API
----------
- Support timestamping on bond interfaces in active/passive mode.
- Introduce generic phylink link mode validation for drivers which
don't have any quirks and where MAC capability bits fully express
what's supported. Allow PCS layer to participate in the validation.
Convert a number of drivers.
- Add support to set/get size of buffers on the Rx rings and size of
the tx copybreak buffer via ethtool.
- Support offloading TC actions as first-class citizens rather than
only as attributes of filters, improve sharing and device resource
utilization.
- WiFi (mac80211/cfg80211):
- support forwarding offload (ndo_fill_forward_path)
- support for background radar detection hardware
- SA Query Procedures offload on the AP side
New hardware / drivers
----------------------
- tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with
real-time requirements for isochronous communication with protocols
like OPC UA Pub/Sub.
- Qualcomm BAM-DMUX WWAN - driver for data channels of modems
integrated into many older Qualcomm SoCs, e.g. MSM8916 or MSM8974
(qcom_bam_dmux).
- Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch driver
with support for bridging, VLANs and multicast forwarding
(lan966x).
- iwlmei driver for co-operating between Intel's WiFi driver and
Intel's Active Management Technology (AMT) devices.
- mse102x - Vertexcom MSE102x Homeplug GreenPHY chips
- Bluetooth:
- MediaTek MT7921 SDIO devices
- Foxconn MT7922A
- Realtek RTL8852AE
Drivers
-------
- Significantly improve performance in the datapaths of: lan78xx,
ax88179_178a, lantiq_xrx200, bnxt.
- Intel Ethernet NICs:
- igb: support PTP/time PEROUT and EXTTS SDP functions on
82580/i354/i350 adapters
- ixgbevf: new PF -> VF mailbox API which avoids the risk of
mailbox corruption with ESXi
- iavf: support configuration of VLAN features of finer
granularity, stacked tags and filtering
- ice: PTP support for new E822 devices with sub-ns precision
- ice: support firmware activation without reboot
- Mellanox Ethernet NICs (mlx5):
- expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
- support TC forwarding when tunnel encap and decap happen between
two ports of the same NIC
- dynamically size and allow disabling various features to save
resources for running in embedded / SmartNIC scenarios
- Broadcom Ethernet NICs (bnxt):
- use page frag allocator to improve Rx performance
- expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
- Other Ethernet NICs:
- amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support
- Microsoft cloud/virtual NIC (mana):
- add XDP support (PASS, DROP, TX)
- Mellanox Ethernet switches (mlxsw):
- initial support for Spectrum-4 ASICs
- VxLAN with IPv6 underlay
- Marvell Ethernet switches (prestera):
- support flower flow templates
- add basic IP forwarding support
- NXP embedded Ethernet switches (ocelot & felix):
- support Per-Stream Filtering and Policing (PSFP)
- enable cut-through forwarding between ports by default
- support FDMA to improve packet Rx/Tx to CPU
- Other embedded switches:
- hellcreek: improve trapping management (STP and PTP) packets
- qca8k: support link aggregation and port mirroring
- Qualcomm 802.11ax WiFi (ath11k):
- qca6390, wcn6855: enable 802.11 power save mode in station mode
- BSS color change support
- WCN6855 hw2.1 support
- 11d scan offload support
- scan MAC address randomization support
- full monitor mode, only supported on QCN9074
- qca6390/wcn6855: report signal and tx bitrate
- qca6390: rfkill support
- qca6390/wcn6855: regdb.bin support
- Intel WiFi (iwlwifi):
- support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS)
in cooperation with the BIOS
- support for Optimized Connectivity Experience (OCE) scan
- support firmware API version 68
- lots of preparatory work for the upcoming Bz device family
- MediaTek WiFi (mt76):
- Specific Absorption Rate (SAR) support
- mt7921: 160 MHz channel support
- RealTek WiFi (rtw88):
- Specific Absorption Rate (SAR) support
- scan offload
- Other WiFi NICs
- ath10k: support fetching (pre-)calibration data from nvmem
- brcmfmac: configure keep-alive packet on suspend
- wcn36xx: beacon filter support"
* tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2048 commits)
tcp: tcp_send_challenge_ack delete useless param `skb`
net/qla3xxx: Remove useless DMA-32 fallback configuration
rocker: Remove useless DMA-32 fallback configuration
hinic: Remove useless DMA-32 fallback configuration
lan743x: Remove useless DMA-32 fallback configuration
net: enetc: Remove useless DMA-32 fallback configuration
cxgb4vf: Remove useless DMA-32 fallback configuration
cxgb4: Remove useless DMA-32 fallback configuration
cxgb3: Remove useless DMA-32 fallback configuration
bnx2x: Remove useless DMA-32 fallback configuration
et131x: Remove useless DMA-32 fallback configuration
be2net: Remove useless DMA-32 fallback configuration
vmxnet3: Remove useless DMA-32 fallback configuration
bna: Simplify DMA setting
net: alteon: Simplify DMA setting
myri10ge: Simplify DMA setting
qlcnic: Simplify DMA setting
net: allwinner: Fix print format
page_pool: remove spinlock in page_pool_refill_alloc_cache()
amt: fix wrong return type of amt_send_membership_update()
...
This KUnit update for Linux 5.17-rc1 consists of several fixes and
enhancements. A few highlights:
- Option --kconfig_add option allows easily tweaking kunitconfigs
- make build subcommand can reconfigure if needed
- doesn't error on tests without test plans
- doesn't crash if no parameters are generated
- defaults --jobs to # of cups
- reports test parameter results as (K)TAP subtests
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Merge tag 'linux-kselftest-kunit-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
"This consists of several fixes and enhancements. A few highlights:
- Option --kconfig_add option allows easily tweaking kunitconfigs
- make build subcommand can reconfigure if needed
- doesn't error on tests without test plans
- doesn't crash if no parameters are generated
- defaults --jobs to # of cups
- reports test parameter results as (K)TAP subtests"
* tag 'linux-kselftest-kunit-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tool: Default --jobs to number of CPUs
kunit: tool: fix newly introduced typechecker errors
kunit: tool: make `build` subcommand also reconfigure if needed
kunit: tool: delete kunit_parser.TestResult type
kunit: tool: use dataclass instead of collections.namedtuple
kunit: tool: suggest using decode_stacktrace.sh on kernel crash
kunit: tool: reconfigure when the used kunitconfig changes
kunit: tool: revamp message for invalid kunitconfig
kunit: tool: add --kconfig_add to allow easily tweaking kunitconfigs
kunit: tool: move Kconfig read_from_file/parse_from_string to package-level
kunit: tool: print parsed test results fully incrementally
kunit: Report test parameter results as (K)TAP subtests
kunit: Don't crash if no parameters are generated
kunit: tool: Report an error if any test has no subtests
kunit: tool: Do not error on tests without test plans
kunit: add run_checks.py script to validate kunit changes
Documentation: kunit: remove claims that kunit is a mocking framework
kunit: tool: fix --json output for skipped tests
This Kselftest update for Linux 5.17-rc1 consists of fixes to build
errors, false negatives, and several code cleanups, including the
ARRAY_SIZE cleanup that removes 25+ duplicates ARRAY_SIZE defines
from individual tests.
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Merge tag 'linux-kselftest-next-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest update from Shuah Khan:
"Fixes to build errors, false negatives, and several code cleanups,
including the ARRAY_SIZE cleanup that removes 25+ duplicates
ARRAY_SIZE defines from individual tests"
* tag 'linux-kselftest-next-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/vm: remove ARRAY_SIZE define from individual tests
selftests/timens: remove ARRAY_SIZE define from individual tests
selftests/sparc64: remove ARRAY_SIZE define from adi-test
selftests/seccomp: remove ARRAY_SIZE define from seccomp_benchmark
selftests/rseq: remove ARRAY_SIZE define from individual tests
selftests/net: remove ARRAY_SIZE define from individual tests
selftests/landlock: remove ARRAY_SIZE define from common.h
selftests/ir: remove ARRAY_SIZE define from ir_loopback.c
selftests/core: remove ARRAY_SIZE define from close_range_test.c
selftests/cgroup: remove ARRAY_SIZE define from cgroup_util.h
selftests/arm64: remove ARRAY_SIZE define from vec-syscfg.c
tools: fix ARRAY_SIZE defines in tools and selftests hdrs
selftests: cgroup: build error multiple outpt files
selftests/move_mount_set_group remove unneeded conversion to bool
selftests/mount: remove unneeded conversion to bool
selftests: harness: avoid false negatives if test has no ASSERTs
selftests/ftrace: make kprobe profile testcase description unique
selftests: clone3: clone3: add case CLONE3_ARGS_NO_TEST
selftests: timers: Remove unneeded semicolon
kselftests: timers:Remove unneeded semicolon
- Improve seccomp selftests in support of signal handler refactoring (Kees Cook)
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Merge tag 'seccomp-v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp updates from Kees Cook:
"The core seccomp code hasn't changed for this cycle, but the selftests
were improved while helping to debug the recent signal handling
refactoring work Eric did.
Summary:
- Improve seccomp selftests in support of signal handler refactoring
(Kees Cook)"
* tag 'seccomp-v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
selftests/seccomp: Report event mismatches more clearly
selftests/seccomp: Stop USER_NOTIF test if kcmp() fails
In 'perf report', entering a recursive function from inside of itself
(either directly of indirectly through some other function) results in
calling symbol__annotate2 multiple() times, and freeing the whole
disassembly when exiting from the innermost instance.
The first issue causes the function's disassembly to be duplicated, and
the latter a heap use-after-free (and crash) when trying to access the
disassembly again.
I reproduced the bug on perf 5.11.22 (Ubuntu 20.04.3 LTS) and 5.16.rc8
with the following testcase (compile with gcc recursive.c -o recursive).
To reproduce:
- perf record ./recursive
- perf report
- enter fibonacci and annotate it
- move the cursor on one of the "callq fibonacci" instructions and press enter
- at this point there will be two copies of the function in the disassembly
- go back by pressing q, and perf will crash
#include <stdio.h>
int fibonacci(int n)
{
if(n <= 2) return 1;
return fibonacci(n-1) + fibonacci(n-2);
}
int main()
{
printf("%d\n", fibonacci(40));
}
This patch addresses the issue by annotating a function and freeing the
associated memory on exit only if no annotation is already present, so
that a recursive function is only annotated on entry.
Signed-off-by: Dario Petrillo <dario.pk1@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@kernel.org
Link: http://lore.kernel.org/lkml/20220109234441.325106-1-dario.pk1@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Update the arch_support_sort_key() function in powerpc to enable
presenting local and global variants of sort key 'p_stage_cyc'.
Update the "se_header" strings for these in arch_perf_header_entry()
along with instruction latency.
Reported-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20211203022038.48240-2-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Sort key 'p_stage_cyc' is used to present the latency cycles spent in
pipeline stages.
perf has local 'p_stage_cyc' sort key to display this info. There is no
global variant available for this sort key. The local variant shows
latency in a single sample, whereas the global value will be useful to
present the total latency (sum of latencies) in the hist entry. It
represents the latency number multiplied by the number of samples.
Add global ('p_stage_cyc') and local variant ('local_p_stage_cyc') for
this sort key. Use 'local_p_stage_cyc' as default option for "mem" sort
mode.
Also add this to the list of dynamic sort keys and made the
"dynamic_headers" and "arch_specific_sort_keys" as static.
Reported-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20211203022038.48240-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
from poison memory and error injection into SGX pages
- A bunch of changes to the SGX selftests to simplify and allow of SGX
features testing without the need of a whole SGX software stack
- Add a sysfs attribute which is supposed to show the amount of SGX
memory in a NUMA node, similar to what /proc/meminfo is to normal
memory
- The usual bunch of fixes and cleanups too
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Merge tag 'x86_sgx_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SGX updates from Borislav Petkov:
- Add support for handling hw errors in SGX pages: poisoning,
recovering from poison memory and error injection into SGX pages
- A bunch of changes to the SGX selftests to simplify and allow of SGX
features testing without the need of a whole SGX software stack
- Add a sysfs attribute which is supposed to show the amount of SGX
memory in a NUMA node, similar to what /proc/meminfo is to normal
memory
- The usual bunch of fixes and cleanups too
* tag 'x86_sgx_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/sgx: Fix NULL pointer dereference on non-SGX systems
selftests/sgx: Fix corrupted cpuid macro invocation
x86/sgx: Add an attribute for the amount of SGX memory in a NUMA node
x86/sgx: Fix minor documentation issues
selftests/sgx: Add test for multiple TCS entry
selftests/sgx: Enable multiple thread support
selftests/sgx: Add page permission and exception test
selftests/sgx: Rename test properties in preparation for more enclave tests
selftests/sgx: Provide per-op parameter structs for the test enclave
selftests/sgx: Add a new kselftest: Unclobbered_vdso_oversubscribed
selftests/sgx: Move setup_test_encl() to each TEST_F()
selftests/sgx: Encpsulate the test enclave creation
selftests/sgx: Dump segments and /proc/self/maps only on failure
selftests/sgx: Create a heap for the test enclave
selftests/sgx: Make data measurement for an enclave segment optional
selftests/sgx: Assign source for each segment
selftests/sgx: Fix a benign linker warning
x86/sgx: Add check for SGX pages to ghes_do_memory_failure()
x86/sgx: Add hook to error injection address validation
x86/sgx: Hook arch_memory_failure() into mainline code
...
- KCSAN enabled for arm64.
- Additional kselftests to exercise the syscall ABI w.r.t. SVE/FPSIMD.
- Some more SVE clean-ups and refactoring in preparation for SME support
(scalable matrix extensions).
- BTI clean-ups (SYM_FUNC macros etc.)
- arm64 atomics clean-up and codegen improvements.
- HWCAPs for FEAT_AFP (alternate floating point behaviour) and
FEAT_RPRESS (increased precision of reciprocal estimate and reciprocal
square root estimate).
- Use SHA3 instructions to speed-up XOR.
- arm64 unwind code refactoring/unification.
- Avoid DC (data cache maintenance) instructions when DCZID_EL0.DZP == 1
(potentially set by a hypervisor; user-space already does this).
- Perf updates for arm64: support for CI-700, HiSilicon PCIe PMU,
Marvell CN10K LLC-TAD PMU, miscellaneous clean-ups.
- Other fixes and clean-ups; highlights: fix the handling of erratum
1418040, correct the calculation of the nomap region boundaries,
introduce io_stop_wc() mapped to the new DGH instruction (data
gathering hint).
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- KCSAN enabled for arm64.
- Additional kselftests to exercise the syscall ABI w.r.t. SVE/FPSIMD.
- Some more SVE clean-ups and refactoring in preparation for SME
support (scalable matrix extensions).
- BTI clean-ups (SYM_FUNC macros etc.)
- arm64 atomics clean-up and codegen improvements.
- HWCAPs for FEAT_AFP (alternate floating point behaviour) and
FEAT_RPRESS (increased precision of reciprocal estimate and
reciprocal square root estimate).
- Use SHA3 instructions to speed-up XOR.
- arm64 unwind code refactoring/unification.
- Avoid DC (data cache maintenance) instructions when DCZID_EL0.DZP ==
1 (potentially set by a hypervisor; user-space already does this).
- Perf updates for arm64: support for CI-700, HiSilicon PCIe PMU,
Marvell CN10K LLC-TAD PMU, miscellaneous clean-ups.
- Other fixes and clean-ups; highlights: fix the handling of erratum
1418040, correct the calculation of the nomap region boundaries,
introduce io_stop_wc() mapped to the new DGH instruction (data
gathering hint).
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (81 commits)
arm64: Use correct method to calculate nomap region boundaries
arm64: Drop outdated links in comments
arm64: perf: Don't register user access sysctl handler multiple times
drivers: perf: marvell_cn10k: fix an IS_ERR() vs NULL check
perf/smmuv3: Fix unused variable warning when CONFIG_OF=n
arm64: errata: Fix exec handling in erratum 1418040 workaround
arm64: Unhash early pointer print plus improve comment
asm-generic: introduce io_stop_wc() and add implementation for ARM64
arm64: Ensure that the 'bti' macro is defined where linkage.h is included
arm64: remove __dma_*_area() aliases
docs/arm64: delete a space from tagged-address-abi
arm64: Enable KCSAN
kselftest/arm64: Add pidbench for floating point syscall cases
arm64/fp: Add comments documenting the usage of state restore functions
kselftest/arm64: Add a test program to exercise the syscall ABI
kselftest/arm64: Allow signal tests to trigger from a function
kselftest/arm64: Parameterise ptrace vector length information
arm64/sve: Minor clarification of ABI documentation
arm64/sve: Generalise vector length configuration prctl() for SME
arm64/sve: Make sysctl interface for SVE reusable by SME
...
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for net-next. This
includes one patch to update ovs and act_ct to use nf_ct_put() instead
of nf_conntrack_put().
1) Add netns_tracker to nfnetlink_log and masquerade, from Eric Dumazet.
2) Remove redundant rcu read-size lock in nf_tables packet path.
3) Replace BUG() by WARN_ON_ONCE() in nft_payload.
4) Consolidate rule verdict tracing.
5) Replace WARN_ON() by WARN_ON_ONCE() in nf_tables core.
6) Make counter support built-in in nf_tables.
7) Add new field to conntrack object to identify locally generated
traffic, from Florian Westphal.
8) Prevent NAT from shadowing well-known ports, from Florian Westphal.
9) Merge nf_flow_table_{ipv4,ipv6} into nf_flow_table_inet, also from
Florian.
10) Remove redundant pointer in nft_pipapo AVX2 support, from Colin Ian King.
11) Replace opencoded max() in conntrack, from Jiapeng Chong.
12) Update conntrack to use refcount_t API, from Florian Westphal.
13) Move ip_ct_attach indirection into the nf_ct_hook structure.
14) Constify several pointer object in the netfilter codebase,
from Florian Westphal.
15) Tree-wide replacement of nf_conntrack_put() by nf_ct_put(), also
from Florian.
16) Fix egress splat due to incorrect rcu notation, from Florian.
17) Move stateful fields of connlimit, last, quota, numgen and limit
out of the expression data area.
18) Build a blob to represent the ruleset in nf_tables, this is a
requirement of the new register tracking infrastructure.
19) Add NFT_REG32_NUM to define the maximum number of 32-bit registers.
20) Add register tracking infrastructure to skip redundant
store-to-register operations, this includes support for payload,
meta and bitwise expresssions.
* git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next: (32 commits)
netfilter: nft_meta: cancel register tracking after meta update
netfilter: nft_payload: cancel register tracking after payload update
netfilter: nft_bitwise: track register operations
netfilter: nft_meta: track register operations
netfilter: nft_payload: track register operations
netfilter: nf_tables: add register tracking infrastructure
netfilter: nf_tables: add NFT_REG32_NUM
netfilter: nf_tables: add rule blob layout
netfilter: nft_limit: move stateful fields out of expression data
netfilter: nft_limit: rename stateful structure
netfilter: nft_numgen: move stateful fields out of expression data
netfilter: nft_quota: move stateful fields out of expression data
netfilter: nft_last: move stateful fields out of expression data
netfilter: nft_connlimit: move stateful fields out of expression data
netfilter: egress: avoid a lockdep splat
net: prefer nf_ct_put instead of nf_conntrack_put
netfilter: conntrack: avoid useless indirection during conntrack destruction
netfilter: make function op structures const
netfilter: core: move ip_ct_attach indirection to struct nf_ct_hook
netfilter: conntrack: convert to refcount_t api
...
====================
Link: https://lore.kernel.org/r/20220109231640.104123-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Revert "libtraceevent: Increase libtraceevent logging when verbose", breaks the build
with libtraceevent-1.3.0, i.e. when building with 'LIBTRACEEVENT_DYNAMIC=1'.
- Avoid early exit in 'perf trace' due to running SIGCHLD handler before it
makes sense to. It can happen when using a BPF source code event that have
to be first built into an object file.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.16-2022-01-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Revert "libtraceevent: Increase libtraceevent logging when verbose",
breaks the build with libtraceevent-1.3.0, i.e. when building with
'LIBTRACEEVENT_DYNAMIC=1'.
- Avoid early exit in 'perf trace' due to running SIGCHLD handler
before it makes sense to. It can happen when using a BPF source code
event that have to be first built into an object file.
* tag 'perf-tools-fixes-for-v5.16-2022-01-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
Revert "libtraceevent: Increase libtraceevent logging when verbose"
perf trace: Avoid early exit due to running SIGCHLD handler before it makes sense to
MPTCP join self-tests are a bit fragile as they reply on
delays instead of events to catch-up with the expected
sockets states.
Replace the delay with state checking where possible and
reduce the number of sleeps in the most complex scenarios.
This will both reduce the tests run-time and will improve
stability.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This reverts commit 08efcb4a638d260ef7fcbae64ecf7ceceb3f1841.
This breaks the build as it will prefer using libbpf-devel header files,
even when not using LIBBPF_DYNAMIC=1, breaking the build.
This was detected on OpenSuSE Tumbleweed with libtraceevent-devel 1.3.0,
as described by Jiri Slaby:
=======================================================================
It breaks build with LIBTRACEEVENT_DYNAMIC and version 1.3.0:
> util/debug.c: In function ‘perf_debug_option’:
> util/debug.c:243:17: error: implicit declaration of function
‘tep_set_loglevel’ [-Werror=implicit-function-declaration]
> 243 | tep_set_loglevel(TEP_LOG_INFO);
> | ^~~~~~~~~~~~~~~~
> util/debug.c:243:34: error: ‘TEP_LOG_INFO’ undeclared (first use in this
function); did you mean ‘TEP_PRINT_INFO’?
> 243 | tep_set_loglevel(TEP_LOG_INFO);
> | ^~~~~~~~~~~~
> | TEP_PRINT_INFO
> util/debug.c:243:34: note: each undeclared identifier is reported only once
for each function it appears in
> util/debug.c:245:34: error: ‘TEP_LOG_DEBUG’ undeclared (first use in this
function)
> 245 | tep_set_loglevel(TEP_LOG_DEBUG);
> | ^~~~~~~~~~~~~
> util/debug.c:247:34: error: ‘TEP_LOG_ALL’ undeclared (first use in this
function)
> 247 | tep_set_loglevel(TEP_LOG_ALL);
> | ^~~~~~~~~~~
It is because the gcc's command line looks like:
gcc
...
-I/home/abuild/rpmbuild/BUILD/tools/lib/
...
-DLIBTRACEEVENT_VERSION=65790
...
=======================================================================
The proper way to fix this is more involved and so not suitable for this
late in the 5.16-rc stage.
Reported-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/lkml/bc2b0786-8965-1bcd-2316-9d9bb37b9c31@kernel.org
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: https://lore.kernel.org/lkml/YddGjjmlMZzxUZbN@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When running 'perf trace' with an BPF object like:
# perf trace -e openat,tools/perf/examples/bpf/hello.c
the event parsing eventually calls llvm__get_kbuild_opts() that runs a
script and that ends up with SIGCHLD delivered to the 'perf trace'
handler, which assumes the workload process is done and quits 'perf
trace'.
Move the SIGCHLD handler setup directly to trace__run(), where the event
is parsed and the object is already compiled.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Christy Lee <christyc.y.lee@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220106222030.227499-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Now that core kvm_util declarations have special home in
kvm_util_base.h, move ucall-related declarations out into a separate
header.
Signed-off-by: Michael Roth <michael.roth@amd.com>
Message-Id: <20211210164620.11636-3-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Between helper macros and interfaces that will be introduced in
subsequent patches, much of kvm_util.h would end up being declarations
specific to ucall. Ideally these could be separated out into a separate
header since they are not strictly required for writing guest tests and
are mostly self-contained interfaces other than a reliance on a few
core declarations like struct kvm_vm. This doesn't make a big
difference as far as how tests will be compiled/written since all these
interfaces will still be packaged up into a single/common libkvm.a used
by all tests, but it is still nice to be able to compartmentalize to
improve readabilty and reduce merge conflicts in the future for common
tasks like adding new interfaces to kvm_util.h.
Furthermore, some of the ucall declarations will be arch-specific,
requiring various #ifdef'ery in kvm_util.h. Ideally these declarations
could live in separate arch-specific headers, e.g.
include/<arch>/ucall.h, which would handle arch-specific declarations
as well as pulling in common ucall-related declarations shared by all
archs.
One simple way to do this would be to #include ucall.h at the bottom of
kvm_util.h, after declarations it relies upon like struct kvm_vm.
This is brittle however, and doesn't scale easily to other sets of
interfaces that may be added in the future.
Instead, move all declarations currently in kvm_util.h into
kvm_util_base.h, then have kvm_util.h #include it. With this change,
non-base declarations can be selectively moved/introduced into separate
headers, which can then be included in kvm_util.h so that individual
tests don't need to be touched. Subsequent patches will then move
ucall-related declarations into a separate header to meet the above
goals.
Signed-off-by: Michael Roth <michael.roth@amd.com>
Message-Id: <20211210164620.11636-2-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This adds basic support for delivering 2 level event channels to a guest.
Initially, it only supports delivery via the IRQ routing table, triggered
by an eventfd. In order to do so, it has a kvm_xen_set_evtchn_fast()
function which will use the pre-mapped shared_info page if it already
exists and is still valid, while the slow path through the irqfd_inject
workqueue will remap the shared_info page if necessary.
It sets the bits in the shared_info page but not the vcpu_info; that is
deferred to __kvm_xen_has_interrupt() which raises the vector to the
appropriate vCPU.
Add a 'verbose' mode to xen_shinfo_test while adding test cases for this.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20211210163625.2886-5-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add tests to confirm mirror vms can only run correct subset of commands.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Marc Orr <marcorr@google.com>
Signed-off-by: Peter Gonda <pgonda@google.com>
Message-Id: <20211208191642.3792819-4-pgonda@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
TEST_ASSERT in SEV ioctl was allowing errors because it checked return
value was good OR the FW error code was OK. This TEST_ASSERT should
require both (aka. AND) values are OK. Removes the LAUNCH_START from the
mirror VM because this call correctly fails because mirror VMs cannot
call this command. Currently issues with the PSP driver functions mean
the firmware error is not always reset to SEV_RET_SUCCESS when a call is
successful. Mainly sev_platform_init() doesn't correctly set the fw
error if the platform has already been initialized.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Marc Orr <marcorr@google.com>
Signed-off-by: Peter Gonda <pgonda@google.com>
Message-Id: <20211208191642.3792819-3-pgonda@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Mirrors should not be able to call LAUNCH_START. Remove the call on the
mirror to correct the test before fixing sev_ioctl() to correctly assert
on this failed ioctl.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Marc Orr <marcorr@google.com>
Signed-off-by: Peter Gonda <pgonda@google.com>
Message-Id: <20211208191642.3792819-2-pgonda@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Use common KVM implementation of MMU memory caches
- SBI v0.2 support for Guest
- Initial KVM selftests support
- Fix to avoid spurious virtual interrupts after clearing hideleg CSR
- Update email address for Anup and Atish
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Merge tag 'kvm-riscv-5.17-1' of https://github.com/kvm-riscv/linux into HEAD
KVM/riscv changes for 5.17, take #1
- Use common KVM implementation of MMU memory caches
- SBI v0.2 support for Guest
- Initial KVM selftests support
- Fix to avoid spurious virtual interrupts after clearing hideleg CSR
- Update email address for Anup and Atish
- Simplification of the 'vcpu first run' by integrating it into
KVM's 'pid change' flow
- Refactoring of the FP and SVE state tracking, also leading to
a simpler state and less shared data between EL1 and EL2 in
the nVHE case
- Tidy up the header file usage for the nvhe hyp object
- New HYP unsharing mechanism, finally allowing pages to be
unmapped from the Stage-1 EL2 page-tables
- Various pKVM cleanups around refcounting and sharing
- A couple of vgic fixes for bugs that would trigger once
the vcpu xarray rework is merged, but not sooner
- Add minimal support for ARMv8.7's PMU extension
- Rework kvm_pgtable initialisation ahead of the NV work
- New selftest for IRQ injection
- Teach selftests about the lack of default IPA space and
page sizes
- Expand sysreg selftest to deal with Pointer Authentication
- The usual bunch of cleanups and doc update
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Merge tag 'kvmarm-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for Linux 5.16
- Simplification of the 'vcpu first run' by integrating it into
KVM's 'pid change' flow
- Refactoring of the FP and SVE state tracking, also leading to
a simpler state and less shared data between EL1 and EL2 in
the nVHE case
- Tidy up the header file usage for the nvhe hyp object
- New HYP unsharing mechanism, finally allowing pages to be
unmapped from the Stage-1 EL2 page-tables
- Various pKVM cleanups around refcounting and sharing
- A couple of vgic fixes for bugs that would trigger once
the vcpu xarray rework is merged, but not sooner
- Add minimal support for ARMv8.7's PMU extension
- Rework kvm_pgtable initialisation ahead of the NV work
- New selftest for IRQ injection
- Teach selftests about the lack of default IPA space and
page sizes
- Expand sysreg selftest to deal with Pointer Authentication
- The usual bunch of cleanups and doc update
Verify that, when multiple endpoints are available, subflows
creation proceed even when the first additional subflow creation
fails - due to packet drop on the relevant link
Co-developed-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Include into the path manager status a bitmap tracking the list
of local endpoints still available - not yet used - for the
relevant mptcp socket.
Keep such map updated at endpoint creation/deletion time, so
that we can easily skip already used endpoint at local address
selection time.
The endpoint used by the initial subflow is lazyly accounted at
subflow creation time: the usage bitmap is be up2date before
endpoint selection and we avoid such unneeded task in some relevant
scenarios - e.g. busy servers accepting incoming subflows but
not creating any additional ones nor annuncing additional addresses.
Overall this allows for fair local endpoints usage in case of
subflow failure.
As a side effect, this patch also enforces that each endpoint
is used at most once for each mptcp connection.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Performs several disconnect/reconnect on the same socket,
ensuring the overall transfer is succesful.
The new test leverages ioctl(SIOCOUTQ) to ensure all the
pending data is acked before disconnecting.
Additionally order alphabetically the test program arguments list
for better maintainability.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Refcount leak in ipt_CLUSTERIP rule loading path, from Xin Xiong.
2) Use socat in netfilter selftests, from Hangbin Liu.
3) Skip layer checksum 4 update for IP fragments.
4) Missing allocation of pcpu scratch maps on clone in
nft_set_pipapo, from Florian Westphal.
* git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf:
netfilter: nft_set_pipapo: allocate pcpu scratch maps on clone
netfilter: nft_payload: do not update layer 4 checksum when mangling fragments
selftests: netfilter: switch to socat for tests using -q option
netfilter: ipt_CLUSTERIP: fix refcount leak in clusterip_tg_check()
====================
Link: https://lore.kernel.org/r/20220106215139.170824-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ian Rogers
Adrian Hunter
Linus Torvalds
Toke Høiland-Jørgensen
Dario Petrillo
Athira Rajeev
Arnaldo Carvalho de Melo
Jakub Kicinski
Paolo Abeni
Jiri Olsa
Michael Roth
David Woodhouse
Peter Gonda
Paolo Bonzini