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7586d52765
17175 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
7586d52765 |
cgroup: Changes for v6.13
- cpu.stat now also shows niced CPU time. - Freezer and cpuset optimizations. - Other misc changes. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZztlgg4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGbohAQDE/enqpAX9vSOpQPne4ZzgcPlGTrCwBcka3Z5z 4aOF0AD/SmdjcJ/EULisD/2O27ovsGAtqDjngrrZwNUTbCNkTQQ= =pKyo -----END PGP SIGNATURE----- Merge tag 'cgroup-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - cpu.stat now also shows niced CPU time - Freezer and cpuset optimizations - Other misc changes * tag 'cgroup-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/cpuset: Disable cpuset_cpumask_can_shrink() test if not load balancing cgroup/cpuset: Further optimize code if CONFIG_CPUSETS_V1 not set cgroup/cpuset: Enforce at most one rebuild_sched_domains_locked() call per operation cgroup/cpuset: Revert "Allow suppression of sched domain rebuild in update_cpumasks_hier()" MAINTAINERS: remove Zefan Li cgroup/freezer: Add cgroup CGRP_FROZEN flag update helper cgroup/freezer: Reduce redundant traversal for cgroup_freeze cgroup/bpf: only cgroup v2 can be attached by bpf programs Revert "cgroup: Fix memory leak caused by missing cgroup_bpf_offline" selftests/cgroup: Fix compile error in test_cpu.c cgroup/rstat: Selftests for niced CPU statistics cgroup/rstat: Tracking cgroup-level niced CPU time cgroup/cpuset: Fix spelling errors in file kernel/cgroup/cpuset.c |
||
|
Linus Torvalds
|
aa44f41470 |
Livepatching changes for 6.13
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||
|
Linus Torvalds
|
bf9aa14fc5 |
A rather large update for timekeeping and timers:
- The final step to get rid of auto-rearming posix-timers
posix-timers are currently auto-rearmed by the kernel when the signal
of the timer is ignored so that the timer signal can be delivered once
the corresponding signal is unignored.
This requires to throttle the timer to prevent a DoS by small intervals
and keeps the system pointlessly out of low power states for no value.
This is a long standing non-trivial problem due to the lock order of
posix-timer lock and the sighand lock along with life time issues as
the timer and the sigqueue have different life time rules.
Cure this by:
* Embedding the sigqueue into the timer struct to have the same life
time rules. Aside of that this also avoids the lookup of the timer
in the signal delivery and rearm path as it's just a always valid
container_of() now.
* Queuing ignored timer signals onto a seperate ignored list.
* Moving queued timer signals onto the ignored list when the signal is
switched to SIG_IGN before it could be delivered.
* Walking the ignored list when SIG_IGN is lifted and requeue the
signals to the actual signal lists. This allows the signal delivery
code to rearm the timer.
This also required to consolidate the signal delivery rules so they are
consistent across all situations. With that all self test scenarios
finally succeed.
- Core infrastructure for VFS multigrain timestamping
This is required to allow the kernel to use coarse grained time stamps
by default and switch to fine grained time stamps when inode attributes
are actively observed via getattr().
These changes have been provided to the VFS tree as well, so that the
VFS specific infrastructure could be built on top.
- Cleanup and consolidation of the sleep() infrastructure
* Move all sleep and timeout functions into one file
* Rework udelay() and ndelay() into proper documented inline functions
and replace the hardcoded magic numbers by proper defines.
* Rework the fsleep() implementation to take the reality of the timer
wheel granularity on different HZ values into account. Right now the
boundaries are hard coded time ranges which fail to provide the
requested accuracy on different HZ settings.
* Update documentation for all sleep/timeout related functions and fix
up stale documentation links all over the place
* Fixup a few usage sites
- Rework of timekeeping and adjtimex(2) to prepare for multiple PTP clocks
A system can have multiple PTP clocks which are participating in
seperate and independent PTP clock domains. So far the kernel only
considers the PTP clock which is based on CLOCK TAI relevant as that's
the clock which drives the timekeeping adjustments via the various user
space daemons through adjtimex(2).
The non TAI based clock domains are accessible via the file descriptor
based posix clocks, but their usability is very limited. They can't be
accessed fast as they always go all the way out to the hardware and
they cannot be utilized in the kernel itself.
As Time Sensitive Networking (TSN) gains traction it is required to
provide fast user and kernel space access to these clocks.
The approach taken is to utilize the timekeeping and adjtimex(2)
infrastructure to provide this access in a similar way how the kernel
provides access to clock MONOTONIC, REALTIME etc.
Instead of creating a duplicated infrastructure this rework converts
timekeeping and adjtimex(2) into generic functionality which operates
on pointers to data structures instead of using static variables.
This allows to provide time accessors and adjtimex(2) functionality for
the independent PTP clocks in a subsequent step.
- Consolidate hrtimer initialization
hrtimers are set up by initializing the data structure and then
seperately setting the callback function for historical reasons.
That's an extra unnecessary step and makes Rust support less straight
forward than it should be.
Provide a new set of hrtimer_setup*() functions and convert the core
code and a few usage sites of the less frequently used interfaces over.
The bulk of the htimer_init() to hrtimer_setup() conversion is already
prepared and scheduled for the next merge window.
- Drivers:
* Ensure that the global timekeeping clocksource is utilizing the
cluster 0 timer on MIPS multi-cluster systems.
Otherwise CPUs on different clusters use their cluster specific
clocksource which is not guaranteed to be synchronized with other
clusters.
* Mostly boring cleanups, fixes, improvements and code movement
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Merge tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"A rather large update for timekeeping and timers:
- The final step to get rid of auto-rearming posix-timers
posix-timers are currently auto-rearmed by the kernel when the
signal of the timer is ignored so that the timer signal can be
delivered once the corresponding signal is unignored.
This requires to throttle the timer to prevent a DoS by small
intervals and keeps the system pointlessly out of low power states
for no value. This is a long standing non-trivial problem due to
the lock order of posix-timer lock and the sighand lock along with
life time issues as the timer and the sigqueue have different life
time rules.
Cure this by:
- Embedding the sigqueue into the timer struct to have the same
life time rules. Aside of that this also avoids the lookup of
the timer in the signal delivery and rearm path as it's just a
always valid container_of() now.
- Queuing ignored timer signals onto a seperate ignored list.
- Moving queued timer signals onto the ignored list when the
signal is switched to SIG_IGN before it could be delivered.
- Walking the ignored list when SIG_IGN is lifted and requeue the
signals to the actual signal lists. This allows the signal
delivery code to rearm the timer.
This also required to consolidate the signal delivery rules so they
are consistent across all situations. With that all self test
scenarios finally succeed.
- Core infrastructure for VFS multigrain timestamping
This is required to allow the kernel to use coarse grained time
stamps by default and switch to fine grained time stamps when inode
attributes are actively observed via getattr().
These changes have been provided to the VFS tree as well, so that
the VFS specific infrastructure could be built on top.
- Cleanup and consolidation of the sleep() infrastructure
- Move all sleep and timeout functions into one file
- Rework udelay() and ndelay() into proper documented inline
functions and replace the hardcoded magic numbers by proper
defines.
- Rework the fsleep() implementation to take the reality of the
timer wheel granularity on different HZ values into account.
Right now the boundaries are hard coded time ranges which fail
to provide the requested accuracy on different HZ settings.
- Update documentation for all sleep/timeout related functions
and fix up stale documentation links all over the place
- Fixup a few usage sites
- Rework of timekeeping and adjtimex(2) to prepare for multiple PTP
clocks
A system can have multiple PTP clocks which are participating in
seperate and independent PTP clock domains. So far the kernel only
considers the PTP clock which is based on CLOCK TAI relevant as
that's the clock which drives the timekeeping adjustments via the
various user space daemons through adjtimex(2).
The non TAI based clock domains are accessible via the file
descriptor based posix clocks, but their usability is very limited.
They can't be accessed fast as they always go all the way out to
the hardware and they cannot be utilized in the kernel itself.
As Time Sensitive Networking (TSN) gains traction it is required to
provide fast user and kernel space access to these clocks.
The approach taken is to utilize the timekeeping and adjtimex(2)
infrastructure to provide this access in a similar way how the
kernel provides access to clock MONOTONIC, REALTIME etc.
Instead of creating a duplicated infrastructure this rework
converts timekeeping and adjtimex(2) into generic functionality
which operates on pointers to data structures instead of using
static variables.
This allows to provide time accessors and adjtimex(2) functionality
for the independent PTP clocks in a subsequent step.
- Consolidate hrtimer initialization
hrtimers are set up by initializing the data structure and then
seperately setting the callback function for historical reasons.
That's an extra unnecessary step and makes Rust support less
straight forward than it should be.
Provide a new set of hrtimer_setup*() functions and convert the
core code and a few usage sites of the less frequently used
interfaces over.
The bulk of the htimer_init() to hrtimer_setup() conversion is
already prepared and scheduled for the next merge window.
- Drivers:
- Ensure that the global timekeeping clocksource is utilizing the
cluster 0 timer on MIPS multi-cluster systems.
Otherwise CPUs on different clusters use their cluster specific
clocksource which is not guaranteed to be synchronized with
other clusters.
- Mostly boring cleanups, fixes, improvements and code movement"
* tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (140 commits)
posix-timers: Fix spurious warning on double enqueue versus do_exit()
clocksource/drivers/arm_arch_timer: Use of_property_present() for non-boolean properties
clocksource/drivers/gpx: Remove redundant casts
clocksource/drivers/timer-ti-dm: Fix child node refcount handling
dt-bindings: timer: actions,owl-timer: convert to YAML
clocksource/drivers/ralink: Add Ralink System Tick Counter driver
clocksource/drivers/mips-gic-timer: Always use cluster 0 counter as clocksource
clocksource/drivers/timer-ti-dm: Don't fail probe if int not found
clocksource/drivers:sp804: Make user selectable
clocksource/drivers/dw_apb: Remove unused dw_apb_clockevent functions
hrtimers: Delete hrtimer_init_on_stack()
alarmtimer: Switch to use hrtimer_setup() and hrtimer_setup_on_stack()
io_uring: Switch to use hrtimer_setup_on_stack()
sched/idle: Switch to use hrtimer_setup_on_stack()
hrtimers: Delete hrtimer_init_sleeper_on_stack()
wait: Switch to use hrtimer_setup_sleeper_on_stack()
timers: Switch to use hrtimer_setup_sleeper_on_stack()
net: pktgen: Switch to use hrtimer_setup_sleeper_on_stack()
futex: Switch to use hrtimer_setup_sleeper_on_stack()
fs/aio: Switch to use hrtimer_setup_sleeper_on_stack()
...
|
||
|
Linus Torvalds
|
f41dac3efb |
Performance events changes for v6.13:
- Uprobes:
- Add BPF session support (Jiri Olsa)
- Switch to RCU Tasks Trace flavor for better performance (Andrii Nakryiko)
- Massively increase uretprobe SMP scalability by SRCU-protecting
the uretprobe lifetime (Andrii Nakryiko)
- Kill xol_area->slot_count (Oleg Nesterov)
- Core facilities:
- Implement targeted high-frequency profiling by adding the ability
for an event to "pause" or "resume" AUX area tracing (Adrian Hunter)
- VM profiling/sampling:
- Correct perf sampling with guest VMs (Colton Lewis)
- New hardware support:
- x86/intel: Add PMU support for Intel ArrowLake-H CPUs (Dapeng Mi)
- Misc fixes and enhancements:
- x86/intel/pt: Fix buffer full but size is 0 case (Adrian Hunter)
- x86/amd: Warn only on new bits set (Breno Leitao)
- x86/amd/uncore: Avoid a false positive warning about snprintf
truncation in amd_uncore_umc_ctx_init (Jean Delvare)
- uprobes: Re-order struct uprobe_task to save some space (Christophe JAILLET)
- x86/rapl: Move the pmu allocation out of CPU hotplug (Kan Liang)
- x86/rapl: Clean up cpumask and hotplug (Kan Liang)
- uprobes: Deuglify xol_get_insn_slot/xol_free_insn_slot paths (Oleg Nesterov)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"Uprobes:
- Add BPF session support (Jiri Olsa)
- Switch to RCU Tasks Trace flavor for better performance (Andrii
Nakryiko)
- Massively increase uretprobe SMP scalability by SRCU-protecting
the uretprobe lifetime (Andrii Nakryiko)
- Kill xol_area->slot_count (Oleg Nesterov)
Core facilities:
- Implement targeted high-frequency profiling by adding the ability
for an event to "pause" or "resume" AUX area tracing (Adrian
Hunter)
VM profiling/sampling:
- Correct perf sampling with guest VMs (Colton Lewis)
New hardware support:
- x86/intel: Add PMU support for Intel ArrowLake-H CPUs (Dapeng Mi)
Misc fixes and enhancements:
- x86/intel/pt: Fix buffer full but size is 0 case (Adrian Hunter)
- x86/amd: Warn only on new bits set (Breno Leitao)
- x86/amd/uncore: Avoid a false positive warning about snprintf
truncation in amd_uncore_umc_ctx_init (Jean Delvare)
- uprobes: Re-order struct uprobe_task to save some space
(Christophe JAILLET)
- x86/rapl: Move the pmu allocation out of CPU hotplug (Kan Liang)
- x86/rapl: Clean up cpumask and hotplug (Kan Liang)
- uprobes: Deuglify xol_get_insn_slot/xol_free_insn_slot paths (Oleg
Nesterov)"
* tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
perf/core: Correct perf sampling with guest VMs
perf/x86: Refactor misc flag assignments
perf/powerpc: Use perf_arch_instruction_pointer()
perf/core: Hoist perf_instruction_pointer() and perf_misc_flags()
perf/arm: Drop unused functions
uprobes: Re-order struct uprobe_task to save some space
perf/x86/amd/uncore: Avoid a false positive warning about snprintf truncation in amd_uncore_umc_ctx_init
perf/x86/intel: Do not enable large PEBS for events with aux actions or aux sampling
perf/x86/intel/pt: Add support for pause / resume
perf/core: Add aux_pause, aux_resume, aux_start_paused
perf/x86/intel/pt: Fix buffer full but size is 0 case
uprobes: SRCU-protect uretprobe lifetime (with timeout)
uprobes: allow put_uprobe() from non-sleepable softirq context
perf/x86/rapl: Clean up cpumask and hotplug
perf/x86/rapl: Move the pmu allocation out of CPU hotplug
uprobe: Add support for session consumer
uprobe: Add data pointer to consumer handlers
perf/x86/amd: Warn only on new bits set
uprobes: fold xol_take_insn_slot() into xol_get_insn_slot()
uprobes: kill xol_area->slot_count
...
|
||
|
Linus Torvalds
|
8cdf2d1903 |
RCU pull request for v6.13
SRCU:
- Introduction of the new SRCU-lite flavour with a new pair of
srcu_read_[un]lock_lite() APIs. In practice the read side using
this flavour becomes lighter by removing a full memory barrier on
LOCK and a full memory barrier on UNLOCK. This comes at the
expense of a higher latency write side with two (in the best case
of a snaphot of unused read-sides) or more RCU grace periods on
the update side which now assumes by itself the whole full
ordering guarantee against the LOCK/UNLOCK counters on both
indexes, along with the accesses performed inside.
Uretprobes is a known potential user.
Note this doesn't replace the default normal flavour of SRCU which
still behaves the same as usual.
- Add testing of SRCU-lite through rcutorture and rcuscale
- Various cleanups on the way.
FIXES:
- Allow short-circuiting RCU-TASKS-RUDE grace periods on architectures
that have sane noinstr boundaries forbidding tracing on low-level
idle and kernel entry code. RCU-TASKS is enough on such configurations
because it involves an RCU grace period that waits for all idle
tasks to either schedule out voluntarily or enter into RCU
unwatched noinstr code.
- Allow and test start_poll_synchronize_rcu() with IRQs disabled.
- Mention rcuog kthreads in relevant documentation and Kconfig help
- Various fixes and consolidations
RCUTORTURE:
- Add --no-affinity on tools to leave the affinity setting of guests
up to the user.
- Add guest_os_delay parameter to rcuscale for better warm-up
control.
- Fix and improve some rcuscale error handling.
- Various cleanups and fixes
STALL:
- Remove dead code
- Stop dumping tasks if a stalled grace period eventually ended
midway as that only produces confusing output.
- Optimize detection of stalling CPUs and avoid useless node
locking otherwise.
NOCB:
- Fix rcu_barrier() hang due to a race against callbacks
deoffloading. This is not yet used, except by rcutorture, and
waits for its promised cpusets interface.
- Remove leftover function declaration
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Merge tag 'rcu.release.v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Frederic Weisbecker:
"SRCU:
- Introduction of the new SRCU-lite flavour with a new pair of
srcu_read_[un]lock_lite() APIs. In practice the read side using
this flavour becomes lighter by removing a full memory barrier on
LOCK and a full memory barrier on UNLOCK. This comes at the expense
of a higher latency write side with two (in the best case of a
snaphot of unused read-sides) or more RCU grace periods on the
update side which now assumes by itself the whole full ordering
guarantee against the LOCK/UNLOCK counters on both indexes, along
with the accesses performed inside.
Uretprobes is a known potential user.
Note this doesn't replace the default normal flavour of SRCU which
still behaves the same as usual.
- Add testing of SRCU-lite through rcutorture and rcuscale
- Various cleanups on the way.
Fixes:
- Allow short-circuiting RCU-TASKS-RUDE grace periods on
architectures that have sane noinstr boundaries forbidding tracing
on low-level idle and kernel entry code. RCU-TASKS is enough on
such configurations because it involves an RCU grace period that
waits for all idle tasks to either schedule out voluntarily or
enter into RCU unwatched noinstr code.
- Allow and test start_poll_synchronize_rcu() with IRQs disabled.
- Mention rcuog kthreads in relevant documentation and Kconfig help
- Various fixes and consolidations
rcutorture:
- Add --no-affinity on tools to leave the affinity setting of guests
up to the user.
- Add guest_os_delay parameter to rcuscale for better warm-up
control.
- Fix and improve some rcuscale error handling.
- Various cleanups and fixes
stall:
- Remove dead code
- Stop dumping tasks if a stalled grace period eventually ended
midway as that only produces confusing output.
- Optimize detection of stalling CPUs and avoid useless node locking
otherwise.
NOCB:
- Fix rcu_barrier() hang due to a race against callbacks
deoffloading. This is not yet used, except by rcutorture, and waits
for its promised cpusets interface.
- Remove leftover function declaration"
* tag 'rcu.release.v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (42 commits)
rcuscale: Remove redundant WARN_ON_ONCE() splat
rcuscale: Do a proper cleanup if kfree_scale_init() fails
srcu: Unconditionally record srcu_read_lock_lite() in ->srcu_reader_flavor
srcu: Check for srcu_read_lock_lite() across all CPUs
srcu: Remove smp_mb() from srcu_read_unlock_lite()
rcutorture: Avoid printing cpu=-1 for no-fault RCU boost failure
rcuscale: Add guest_os_delay module parameter
refscale: Correct affinity check
torture: Add --no-affinity parameter to kvm.sh
rcu/nocb: Fix missed RCU barrier on deoffloading
rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu
rcu/srcutiny: don't return before reenabling preemption
rcu-tasks: Remove open-coded one-byte cmpxchg() emulation
doc: Remove kernel-parameters.txt entry for rcutorture.read_exit
rcutorture: Test start-poll primitives with interrupts disabled
rcu: Permit start_poll_synchronize_rcu*() with interrupts disabled
rcu: Allow short-circuiting of synchronize_rcu_tasks_rude()
doc: Add rcuog kthreads to kernel-per-CPU-kthreads.rst
rcu: Add rcuog kthreads to RCU_NOCB_CPU help text
rcu: Use the BITS_PER_LONG macro
...
|
||
|
Linus Torvalds
|
26c9fdd6f3 |
nolibc changes for 6.13
Changes ------- * Fix potential error due to missing #include on s390 * Compatibility with -Wmissing-fallthrough * Run qemu with more memory during tests -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmclJJ4THHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jDIIEACCBELCRNPpE5RMF/8DDsQ7wiMlQEWS ZLD3ut57m2FBJf1AUTbMMxweNXS5TY/4AZu3tsR0/olFh483GIchvcz5z5kVcetO 4miwhmfsvy4F7XmVoZGFN2nPo8ign+hW4aMVmpC3xzSi5bxGmulcVmmBwV21pVJx 8+xkyXUGAI1/qcuBM56ZxF1b83SkpPBALW5yLK11iHb1CqophoqDx7MpGGExEH4h C2ca4ygXHgstVgmzJF8z4k5M65Ky6mpsi1zO26ixsqurYbNzkrSUjkTSk85Zq+Ee aqvao1sURJ1C+h70gvqmDelErVe4ralhKePneK3LkEbxkWBR7VUMk6kOOq5UhIhr H0rvicVFFvnIrovzsoaEUQLvD5VCdwBdbzK4gb+12PI5D3VQ8VP4nYL/bey8AXNw O+zfvkgZ4IDwffM8RpC4P1lCYC1AyyQ7srwe+juDuPMAfVPYEXZ/cUeFDboDpBHn UIONBpdFqep1/xlGVc9tLm2F+01Z0gbyG52ccFwGK1Q0L2+0q7V9wIh+7qBAi+Jb fiVbz1I/8Z9TCpjDpmUPScZXxEZW4LeCfXH0pjEb6KbDI9fXkCorzOVHes8y+tNl CO28vSZLnDXo89uQshQwr+pj776djkr9d+s2r1WCngIGoivd24evkHyZZ87J88p5 pik3/mLDC9FNfw== =aNvL -----END PGP SIGNATURE----- Merge tag 'nolibc.2024.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull nolibc updates from Paul McKenney: - Fix potential error due to missing #include on s390 - Compatibility with -Wmissing-fallthrough - Run qemu with more memory during tests * tag 'nolibc.2024.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: selftests/nolibc: start qemu with 1 GiB of memory tools/nolibc: compiler: add macro __nolibc_fallthrough tools/nolibc: s390: include std.h |
||
|
Linus Torvalds
|
ba1f9c8fe3 |
arm64 updates for 6.13:
* Support for running Linux in a protected VM under the Arm Confidential
Compute Architecture (CCA)
* Guarded Control Stack user-space support. Current patches follow the
x86 ABI of implicitly creating a shadow stack on clone(). Subsequent
patches (already on the list) will add support for clone3() allowing
finer-grained control of the shadow stack size and placement from libc
* AT_HWCAP3 support (not running out of HWCAP2 bits yet but we are
getting close with the upcoming dpISA support)
* Other arch features:
- In-kernel use of the memcpy instructions, FEAT_MOPS (previously only
exposed to user; uaccess support not merged yet)
- MTE: hugetlbfs support and the corresponding kselftests
- Optimise CRC32 using the PMULL instructions
- Support for FEAT_HAFT enabling ARCH_HAS_NONLEAF_PMD_YOUNG
- Optimise the kernel TLB flushing to use the range operations
- POE/pkey (permission overlays): further cleanups after bringing the
signal handler in line with the x86 behaviour for 6.12
* arm64 perf updates:
- Support for the NXP i.MX91 PMU in the existing IMX driver
- Support for Ampere SoCs in the Designware PCIe PMU driver
- Support for Marvell's 'PEM' PCIe PMU present in the 'Odyssey' SoC
- Support for Samsung's 'Mongoose' CPU PMU
- Support for PMUv3.9 finer-grained userspace counter access control
- Switch back to platform_driver::remove() now that it returns 'void'
- Add some missing events for the CXL PMU driver
* Miscellaneous arm64 fixes/cleanups:
- Page table accessors cleanup: type updates, drop unused macros,
reorganise arch_make_huge_pte() and clean up pte_mkcont(), sanity
check addresses before runtime P4D/PUD folding
- Command line override for ID_AA64MMFR0_EL1.ECV (advertising the
FEAT_ECV for the generic timers) allowing Linux to boot with
firmware deployments that don't set SCTLR_EL3.ECVEn
- ACPI/arm64: tighten the check for the array of platform timer
structures and adjust the error handling procedure in
gtdt_parse_timer_block()
- Optimise the cache flush for the uprobes xol slot (skip if no
change) and other uprobes/kprobes cleanups
- Fix the context switching of tpidrro_el0 when kpti is enabled
- Dynamic shadow call stack fixes
- Sysreg updates
- Various arm64 kselftest improvements
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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:
- Support for running Linux in a protected VM under the Arm
Confidential Compute Architecture (CCA)
- Guarded Control Stack user-space support. Current patches follow the
x86 ABI of implicitly creating a shadow stack on clone(). Subsequent
patches (already on the list) will add support for clone3() allowing
finer-grained control of the shadow stack size and placement from
libc
- AT_HWCAP3 support (not running out of HWCAP2 bits yet but we are
getting close with the upcoming dpISA support)
- Other arch features:
- In-kernel use of the memcpy instructions, FEAT_MOPS (previously
only exposed to user; uaccess support not merged yet)
- MTE: hugetlbfs support and the corresponding kselftests
- Optimise CRC32 using the PMULL instructions
- Support for FEAT_HAFT enabling ARCH_HAS_NONLEAF_PMD_YOUNG
- Optimise the kernel TLB flushing to use the range operations
- POE/pkey (permission overlays): further cleanups after bringing
the signal handler in line with the x86 behaviour for 6.12
- arm64 perf updates:
- Support for the NXP i.MX91 PMU in the existing IMX driver
- Support for Ampere SoCs in the Designware PCIe PMU driver
- Support for Marvell's 'PEM' PCIe PMU present in the 'Odyssey' SoC
- Support for Samsung's 'Mongoose' CPU PMU
- Support for PMUv3.9 finer-grained userspace counter access
control
- Switch back to platform_driver::remove() now that it returns
'void'
- Add some missing events for the CXL PMU driver
- Miscellaneous arm64 fixes/cleanups:
- Page table accessors cleanup: type updates, drop unused macros,
reorganise arch_make_huge_pte() and clean up pte_mkcont(), sanity
check addresses before runtime P4D/PUD folding
- Command line override for ID_AA64MMFR0_EL1.ECV (advertising the
FEAT_ECV for the generic timers) allowing Linux to boot with
firmware deployments that don't set SCTLR_EL3.ECVEn
- ACPI/arm64: tighten the check for the array of platform timer
structures and adjust the error handling procedure in
gtdt_parse_timer_block()
- Optimise the cache flush for the uprobes xol slot (skip if no
change) and other uprobes/kprobes cleanups
- Fix the context switching of tpidrro_el0 when kpti is enabled
- Dynamic shadow call stack fixes
- Sysreg updates
- Various arm64 kselftest improvements
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (168 commits)
arm64: tls: Fix context-switching of tpidrro_el0 when kpti is enabled
kselftest/arm64: Try harder to generate different keys during PAC tests
kselftest/arm64: Don't leak pipe fds in pac.exec_sign_all()
arm64/ptrace: Clarify documentation of VL configuration via ptrace
kselftest/arm64: Corrupt P0 in the irritator when testing SSVE
acpi/arm64: remove unnecessary cast
arm64/mm: Change protval as 'pteval_t' in map_range()
kselftest/arm64: Fix missing printf() argument in gcs/gcs-stress.c
kselftest/arm64: Add FPMR coverage to fp-ptrace
kselftest/arm64: Expand the set of ZA writes fp-ptrace does
kselftets/arm64: Use flag bits for features in fp-ptrace assembler code
kselftest/arm64: Enable build of PAC tests with LLVM=1
kselftest/arm64: Check that SVCR is 0 in signal handlers
selftests/mm: Fix unused function warning for aarch64_write_signal_pkey()
kselftest/arm64: Fix printf() compiler warnings in the arm64 syscall-abi.c tests
kselftest/arm64: Fix printf() warning in the arm64 MTE prctl() test
kselftest/arm64: Fix printf() compiler warnings in the arm64 fp tests
kselftest/arm64: Fix build with stricter assemblers
arm64/scs: Drop unused prototype __pi_scs_patch_vmlinux()
arm64/scs: Deal with 64-bit relative offsets in FDE frames
...
|
||
|
Linus Torvalds
|
909d3b571e |
vfs-6.13.pidfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcg9wAKCRCRxhvAZXjc ou7GAQDtQ75C+DFjrL4alXjYG7uly0BWgrlRJ4SgNu1I0uUYdgD/UHH2fAkQeKGy xTGT4z0abiELZw9RQ7F6qbiBhA0nIw8= =Plww -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull pidfs update from Christian Brauner: "This adds a new ioctl to retrieve information about a pidfd. A common pattern when using pidfds is having to get information about the process, which currently requires /proc being mounted, resolving the fd to a pid, and then do manual string parsing of /proc/N/status and friends. This needs to be reimplemented over and over in all userspace projects (e.g.: it has been reimplemented in systemd, dbus, dbus-daemon, polkit so far), and requires additional care in checking that the fd is still valid after having parsed the data, to avoid races. Having a programmatic API that can be used directly removes all these requirements, including having /proc mounted. As discussed at LPC24, add an ioctl with an extensible struct so that more parameters can be added later if needed. Start with returning pid/tgid/ppid and some creds unconditionally, and cgroupid optionally" * tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: pidfd: add ioctl to retrieve pid info |
||
|
Linus Torvalds
|
a29835c9d0 |
vfs-6.13.ovl
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Merge tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull overlayfs updates from Christian Brauner:
"Make overlayfs support specifying layers through file descriptors.
Currently overlayfs only allows specifying layers through path names.
This is inconvenient for users that want to assemble an overlayfs
mount purely based on file descriptors:
This enables user to specify both:
fsconfig(fd_overlay, FSCONFIG_SET_FD, "upperdir+", NULL, fd_upper);
fsconfig(fd_overlay, FSCONFIG_SET_FD, "workdir+", NULL, fd_work);
fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower1);
fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower2);
in addition to:
fsconfig(fd_overlay, FSCONFIG_SET_STRING, "upperdir+", "/upper", 0);
fsconfig(fd_overlay, FSCONFIG_SET_STRING, "workdir+", "/work", 0);
fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower1", 0);
fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower2", 0);
There's also a large set of new overlayfs selftests to test new
features and some older properties"
* tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests: add test for specifying 500 lower layers
selftests: add overlayfs fd mounting selftests
selftests: use shared header
Documentation,ovl: document new file descriptor based layers
ovl: specify layers via file descriptors
fs: add helper to use mount option as path or fd
|
||
|
Linus Torvalds
|
4c797b11a8 |
vfs-6.13.file
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Merge tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs file updates from Christian Brauner:
"This contains changes the changes for files for this cycle:
- Introduce a new reference counting mechanism for files.
As atomic_inc_not_zero() is implemented with a try_cmpxchg() loop
it has O(N^2) behaviour under contention with N concurrent
operations and it is in a hot path in __fget_files_rcu().
The rcuref infrastructures remedies this problem by using an
unconditional increment relying on safe- and dead zones to make
this work and requiring rcu protection for the data structure in
question. This not just scales better it also introduces overflow
protection.
However, in contrast to generic rcuref, files require a memory
barrier and thus cannot rely on *_relaxed() atomic operations and
also require to be built on atomic_long_t as having massive amounts
of reference isn't unheard of even if it is just an attack.
This adds a file specific variant instead of making this a generic
library.
This has been tested by various people and it gives consistent
improvement up to 3-5% on workloads with loads of threads.
- Add a fastpath for find_next_zero_bit(). Skip 2-levels searching
via find_next_zero_bit() when there is a free slot in the word that
contains the next fd. This improves pts/blogbench-1.1.0 read by 8%
and write by 4% on Intel ICX 160.
- Conditionally clear full_fds_bits since it's very likely that a bit
in full_fds_bits has been cleared during __clear_open_fds(). This
improves pts/blogbench-1.1.0 read up to 13%, and write up to 5% on
Intel ICX 160.
- Get rid of all lookup_*_fdget_rcu() variants. They were used to
lookup files without taking a reference count. That became invalid
once files were switched to SLAB_TYPESAFE_BY_RCU and now we're
always taking a reference count. Switch to an already existing
helper and remove the legacy variants.
- Remove pointless includes of <linux/fdtable.h>.
- Avoid cmpxchg() in close_files() as nobody else has a reference to
the files_struct at that point.
- Move close_range() into fs/file.c and fold __close_range() into it.
- Cleanup calling conventions of alloc_fdtable() and expand_files().
- Merge __{set,clear}_close_on_exec() into one.
- Make __set_open_fd() set cloexec as well instead of doing it in two
separate steps"
* tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests: add file SLAB_TYPESAFE_BY_RCU recycling stressor
fs: port files to file_ref
fs: add file_ref
expand_files(): simplify calling conventions
make __set_open_fd() set cloexec state as well
fs: protect backing files with rcu
file.c: merge __{set,clear}_close_on_exec()
alloc_fdtable(): change calling conventions.
fs/file.c: add fast path in find_next_fd()
fs/file.c: conditionally clear full_fds
fs/file.c: remove sanity_check and add likely/unlikely in alloc_fd()
move close_range(2) into fs/file.c, fold __close_range() into it
close_files(): don't bother with xchg()
remove pointless includes of <linux/fdtable.h>
get rid of ...lookup...fdget_rcu() family
|
||
|
Frederic Weisbecker
|
d8dfba2c60 | Merge branches 'rcu/fixes', 'rcu/nocb', 'rcu/torture', 'rcu/stall' and 'rcu/srcu' into rcu/dev | ||
|
Linus Torvalds
|
cfaaa7d010 |
Including fixes from bluetooth.
Quite calm week. No new regression under investigation.
Current release - regressions:
- eth: revert "igb: Disable threaded IRQ for igb_msix_other"
Current release - new code bugs:
- bluetooth: btintel: direct exception event to bluetooth stack
Previous releases - regressions:
- core: fix data-races around sk->sk_forward_alloc
- netlink: terminate outstanding dump on socket close
- mptcp: error out earlier on disconnect
- vsock: fix accept_queue memory leak
- phylink: ensure PHY momentary link-fails are handled
- eth: mlx5:
- fix null-ptr-deref in add rule err flow
- lock FTE when checking if active
- eth: dwmac-mediatek: fix inverted handling of mediatek,mac-wol
Previous releases - always broken:
- sched: fix u32's systematic failure to free IDR entries for hnodes.
- sctp: fix possible UAF in sctp_v6_available()
- eth: bonding: add ns target multicast address to slave device
- eth: mlx5: fix msix vectors to respect platform limit
- eth: icssg-prueth: fix 1 PPS sync
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth.
Quite calm week. No new regression under investigation.
Current release - regressions:
- eth: revert "igb: Disable threaded IRQ for igb_msix_other"
Current release - new code bugs:
- bluetooth: btintel: direct exception event to bluetooth stack
Previous releases - regressions:
- core: fix data-races around sk->sk_forward_alloc
- netlink: terminate outstanding dump on socket close
- mptcp: error out earlier on disconnect
- vsock: fix accept_queue memory leak
- phylink: ensure PHY momentary link-fails are handled
- eth: mlx5:
- fix null-ptr-deref in add rule err flow
- lock FTE when checking if active
- eth: dwmac-mediatek: fix inverted handling of mediatek,mac-wol
Previous releases - always broken:
- sched: fix u32's systematic failure to free IDR entries for hnodes.
- sctp: fix possible UAF in sctp_v6_available()
- eth: bonding: add ns target multicast address to slave device
- eth: mlx5: fix msix vectors to respect platform limit
- eth: icssg-prueth: fix 1 PPS sync"
* tag 'net-6.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits)
net: sched: u32: Add test case for systematic hnode IDR leaks
selftests: bonding: add ns multicast group testing
bonding: add ns target multicast address to slave device
net: ti: icssg-prueth: Fix 1 PPS sync
stmmac: dwmac-intel-plat: fix call balance of tx_clk handling routines
net: Make copy_safe_from_sockptr() match documentation
net: stmmac: dwmac-mediatek: Fix inverted handling of mediatek,mac-wol
ipmr: Fix access to mfc_cache_list without lock held
samples: pktgen: correct dev to DEV
net: phylink: ensure PHY momentary link-fails are handled
mptcp: pm: use _rcu variant under rcu_read_lock
mptcp: hold pm lock when deleting entry
mptcp: update local address flags when setting it
net: sched: cls_u32: Fix u32's systematic failure to free IDR entries for hnodes.
MAINTAINERS: Re-add cancelled Renesas driver sections
Revert "igb: Disable threaded IRQ for igb_msix_other"
Bluetooth: btintel: Direct exception event to bluetooth stack
Bluetooth: hci_core: Fix calling mgmt_device_connected
virtio/vsock: Improve MSG_ZEROCOPY error handling
vsock: Fix sk_error_queue memory leak
...
|
||
|
Catalin Marinas
|
83ef4a378e |
Merge branch 'for-next/pkey-signal' into for-next/core
* for-next/pkey-signal: : Bring arm64 pkey signal delivery in line with the x86 behaviour selftests/mm: Fix unused function warning for aarch64_write_signal_pkey() selftests/mm: Define PKEY_UNRESTRICTED for pkey_sighandler_tests selftests/mm: Enable pkey_sighandler_tests on arm64 selftests/mm: Use generic pkey register manipulation arm64: signal: Remove unused macro arm64: signal: Remove unnecessary check when saving POE state arm64: signal: Improve POR_EL0 handling to avoid uaccess failures firmware: arm_sdei: Fix the input parameter of cpuhp_remove_state() Revert "kasan: Disable Software Tag-Based KASAN with GCC" kasan: Fix Software Tag-Based KASAN with GCC kasan: Disable Software Tag-Based KASAN with GCC Documentation/protection-keys: add AArch64 to documentation arm64: set POR_EL0 for kernel threads # Conflicts: # arch/arm64/kernel/signal.c |
||
|
Catalin Marinas
|
5a4332062e |
Merge branches 'for-next/gcs', 'for-next/probes', 'for-next/asm-offsets', 'for-next/tlb', 'for-next/misc', 'for-next/mte', 'for-next/sysreg', 'for-next/stacktrace', 'for-next/hwcap3', 'for-next/kselftest', 'for-next/crc32', 'for-next/guest-cca', 'for-next/haft' and 'for-next/scs', remote-tracking branch 'arm64/for-next/perf' into for-next/core
* arm64/for-next/perf:
perf: Switch back to struct platform_driver::remove()
perf: arm_pmuv3: Add support for Samsung Mongoose PMU
dt-bindings: arm: pmu: Add Samsung Mongoose core compatible
perf/dwc_pcie: Fix typos in event names
perf/dwc_pcie: Add support for Ampere SoCs
ARM: pmuv3: Add missing write_pmuacr()
perf/marvell: Marvell PEM performance monitor support
perf/arm_pmuv3: Add PMUv3.9 per counter EL0 access control
perf/dwc_pcie: Convert the events with mixed case to lowercase
perf/cxlpmu: Support missing events in 3.1 spec
perf: imx_perf: add support for i.MX91 platform
dt-bindings: perf: fsl-imx-ddr: Add i.MX91 compatible
drivers perf: remove unused field pmu_node
* for-next/gcs: (42 commits)
: arm64 Guarded Control Stack user-space support
kselftest/arm64: Fix missing printf() argument in gcs/gcs-stress.c
arm64/gcs: Fix outdated ptrace documentation
kselftest/arm64: Ensure stable names for GCS stress test results
kselftest/arm64: Validate that GCS push and write permissions work
kselftest/arm64: Enable GCS for the FP stress tests
kselftest/arm64: Add a GCS stress test
kselftest/arm64: Add GCS signal tests
kselftest/arm64: Add test coverage for GCS mode locking
kselftest/arm64: Add a GCS test program built with the system libc
kselftest/arm64: Add very basic GCS test program
kselftest/arm64: Always run signals tests with GCS enabled
kselftest/arm64: Allow signals tests to specify an expected si_code
kselftest/arm64: Add framework support for GCS to signal handling tests
kselftest/arm64: Add GCS as a detected feature in the signal tests
kselftest/arm64: Verify the GCS hwcap
arm64: Add Kconfig for Guarded Control Stack (GCS)
arm64/ptrace: Expose GCS via ptrace and core files
arm64/signal: Expose GCS state in signal frames
arm64/signal: Set up and restore the GCS context for signal handlers
arm64/mm: Implement map_shadow_stack()
...
* for-next/probes:
: Various arm64 uprobes/kprobes cleanups
arm64: insn: Simulate nop instruction for better uprobe performance
arm64: probes: Remove probe_opcode_t
arm64: probes: Cleanup kprobes endianness conversions
arm64: probes: Move kprobes-specific fields
arm64: probes: Fix uprobes for big-endian kernels
arm64: probes: Fix simulate_ldr*_literal()
arm64: probes: Remove broken LDR (literal) uprobe support
* for-next/asm-offsets:
: arm64 asm-offsets.c cleanup (remove unused offsets)
arm64: asm-offsets: remove PREEMPT_DISABLE_OFFSET
arm64: asm-offsets: remove DMA_{TO,FROM}_DEVICE
arm64: asm-offsets: remove VM_EXEC and PAGE_SZ
arm64: asm-offsets: remove MM_CONTEXT_ID
arm64: asm-offsets: remove COMPAT_{RT_,SIGFRAME_REGS_OFFSET
arm64: asm-offsets: remove VMA_VM_*
arm64: asm-offsets: remove TSK_ACTIVE_MM
* for-next/tlb:
: TLB flushing optimisations
arm64: optimize flush tlb kernel range
arm64: tlbflush: add __flush_tlb_range_limit_excess()
* for-next/misc:
: Miscellaneous patches
arm64: tls: Fix context-switching of tpidrro_el0 when kpti is enabled
arm64/ptrace: Clarify documentation of VL configuration via ptrace
acpi/arm64: remove unnecessary cast
arm64/mm: Change protval as 'pteval_t' in map_range()
arm64: uprobes: Optimize cache flushes for xol slot
acpi/arm64: Adjust error handling procedure in gtdt_parse_timer_block()
arm64: fix .data.rel.ro size assertion when CONFIG_LTO_CLANG
arm64/ptdump: Test both PTE_TABLE_BIT and PTE_VALID for block mappings
arm64/mm: Sanity check PTE address before runtime P4D/PUD folding
arm64/mm: Drop setting PTE_TYPE_PAGE in pte_mkcont()
ACPI: GTDT: Tighten the check for the array of platform timer structures
arm64/fpsimd: Fix a typo
arm64: Expose ID_AA64ISAR1_EL1.XS to sanitised feature consumers
arm64: Return early when break handler is found on linked-list
arm64/mm: Re-organize arch_make_huge_pte()
arm64/mm: Drop _PROT_SECT_DEFAULT
arm64: Add command-line override for ID_AA64MMFR0_EL1.ECV
arm64: head: Drop SWAPPER_TABLE_SHIFT
arm64: cpufeature: add POE to cpucap_is_possible()
arm64/mm: Change pgattr_change_is_safe() arguments as pteval_t
* for-next/mte:
: Various MTE improvements
selftests: arm64: add hugetlb mte tests
hugetlb: arm64: add mte support
* for-next/sysreg:
: arm64 sysreg updates
arm64/sysreg: Update ID_AA64MMFR1_EL1 to DDI0601 2024-09
* for-next/stacktrace:
: arm64 stacktrace improvements
arm64: preserve pt_regs::stackframe during exec*()
arm64: stacktrace: unwind exception boundaries
arm64: stacktrace: split unwind_consume_stack()
arm64: stacktrace: report recovered PCs
arm64: stacktrace: report source of unwind data
arm64: stacktrace: move dump_backtrace() to kunwind_stack_walk()
arm64: use a common struct frame_record
arm64: pt_regs: swap 'unused' and 'pmr' fields
arm64: pt_regs: rename "pmr_save" -> "pmr"
arm64: pt_regs: remove stale big-endian layout
arm64: pt_regs: assert pt_regs is a multiple of 16 bytes
* for-next/hwcap3:
: Add AT_HWCAP3 support for arm64 (also wire up AT_HWCAP4)
arm64: Support AT_HWCAP3
binfmt_elf: Wire up AT_HWCAP3 at AT_HWCAP4
* for-next/kselftest: (30 commits)
: arm64 kselftest fixes/cleanups
kselftest/arm64: Try harder to generate different keys during PAC tests
kselftest/arm64: Don't leak pipe fds in pac.exec_sign_all()
kselftest/arm64: Corrupt P0 in the irritator when testing SSVE
kselftest/arm64: Add FPMR coverage to fp-ptrace
kselftest/arm64: Expand the set of ZA writes fp-ptrace does
kselftets/arm64: Use flag bits for features in fp-ptrace assembler code
kselftest/arm64: Enable build of PAC tests with LLVM=1
kselftest/arm64: Check that SVCR is 0 in signal handlers
kselftest/arm64: Fix printf() compiler warnings in the arm64 syscall-abi.c tests
kselftest/arm64: Fix printf() warning in the arm64 MTE prctl() test
kselftest/arm64: Fix printf() compiler warnings in the arm64 fp tests
kselftest/arm64: Fix build with stricter assemblers
kselftest/arm64: Test signal handler state modification in fp-stress
kselftest/arm64: Provide a SIGUSR1 handler in the kernel mode FP stress test
kselftest/arm64: Implement irritators for ZA and ZT
kselftest/arm64: Remove unused ADRs from irritator handlers
kselftest/arm64: Correct misleading comments on fp-stress irritators
kselftest/arm64: Poll less often while waiting for fp-stress children
kselftest/arm64: Increase frequency of signal delivery in fp-stress
kselftest/arm64: Fix encoding for SVE B16B16 test
...
* for-next/crc32:
: Optimise CRC32 using PMULL instructions
arm64/crc32: Implement 4-way interleave using PMULL
arm64/crc32: Reorganize bit/byte ordering macros
arm64/lib: Handle CRC-32 alternative in C code
* for-next/guest-cca:
: Support for running Linux as a guest in Arm CCA
arm64: Document Arm Confidential Compute
virt: arm-cca-guest: TSM_REPORT support for realms
arm64: Enable memory encrypt for Realms
arm64: mm: Avoid TLBI when marking pages as valid
arm64: Enforce bounce buffers for realm DMA
efi: arm64: Map Device with Prot Shared
arm64: rsi: Map unprotected MMIO as decrypted
arm64: rsi: Add support for checking whether an MMIO is protected
arm64: realm: Query IPA size from the RMM
arm64: Detect if in a realm and set RIPAS RAM
arm64: rsi: Add RSI definitions
* for-next/haft:
: Support for arm64 FEAT_HAFT
arm64: pgtable: Warn unexpected pmdp_test_and_clear_young()
arm64: Enable ARCH_HAS_NONLEAF_PMD_YOUNG
arm64: Add support for FEAT_HAFT
arm64: setup: name 'tcr2' register
arm64/sysreg: Update ID_AA64MMFR1_EL1 register
* for-next/scs:
: Dynamic shadow call stack fixes
arm64/scs: Drop unused prototype __pi_scs_patch_vmlinux()
arm64/scs: Deal with 64-bit relative offsets in FDE frames
arm64/scs: Fix handling of DWARF augmentation data in CIE/FDE frames
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Alexandre Ferrieux
|
ca34aceb32 |
net: sched: u32: Add test case for systematic hnode IDR leaks
Add a tdc test case to exercise the just-fixed systematic leak of IDR entries in u32 hnode disposal. Given the IDR in question is confined to the range [1..0x7FF], it is sufficient to create/delete the same filter 2048 times to fill it up and get a nonzero exit status from "tc filter add". Signed-off-by: Alexandre Ferrieux <alexandre.ferrieux@orange.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20241113100428.360460-1-alexandre.ferrieux@orange.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
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Hangbin Liu
|
86fb6173d1 |
selftests: bonding: add ns multicast group testing
Add a test to make sure the backup slaves join correct multicast group when arp_validate enabled and ns_ip6_target is set. Here is the result: TEST: arp_validate (active-backup ns_ip6_target arp_validate 0) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 1) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 2) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 3) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 4) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 5) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 6) [ OK ] TEST: arp_validate (join mcast group) [ OK ] Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Linus Torvalds
|
9f8e716d46 |
BPF fixes:
- Fix a mismatching RCU unlock flavor in bpf_out_neigh_v6 (Jiawei Ye) - Fix BPF sockmap with kTLS to reject vsock and unix sockets upon kTLS context retrieval (Zijian Zhang) - Fix BPF bits iterator selftest for s390x (Hou Tao) Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> -----BEGIN PGP SIGNATURE----- iIsEABYIADMWIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZzQV0BUcZGFuaWVsQGlv Z2VhcmJveC5uZXQACgkQ2yufC7HISIPFywD9Fx9Qc7LdWGmRAmWTqGKSOVPTBC1L eC/uXop6sLqapP0A/1KsLQmntvXhp+gmxzPEBdwAwb7/DvyPCQV19FZ/sIkA =lDzI -----END PGP SIGNATURE----- Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Pull bpf fixes from Daniel Borkmann: - Fix a mismatching RCU unlock flavor in bpf_out_neigh_v6 (Jiawei Ye) - Fix BPF sockmap with kTLS to reject vsock and unix sockets upon kTLS context retrieval (Zijian Zhang) - Fix BPF bits iterator selftest for s390x (Hou Tao) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf: Fix mismatched RCU unlock flavour in bpf_out_neigh_v6 bpf: Add sk_is_inet and IS_ICSK check in tls_sw_has_ctx_tx/rx selftests/bpf: Use -4095 as the bad address for bits iterator |
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Linus Torvalds
|
4b49c0ba4e |
10 hotfixes, 7 of which are cc:stable. 7 are MM, 3 are not. All
singletons. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZzP1ZAAKCRDdBJ7gKXxA jmBUAP9n2zTKoNeF/WpS0aSg+SpG78mtyMIwSUW2PPfGObYTBwD/bncG9U3fnno1 v6Sey0OjAKwGdV+gTd+5ymWJKPSQbgA= =HxTA -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2024-11-12-16-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "10 hotfixes, 7 of which are cc:stable. 7 are MM, 3 are not. All singletons" * tag 'mm-hotfixes-stable-2024-11-12-16-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: swapfile: fix cluster reclaim work crash on rotational devices selftests: hugetlb_dio: fixup check for initial conditions to skip in the start mm/thp: fix deferred split queue not partially_mapped: fix mm/gup: avoid an unnecessary allocation call for FOLL_LONGTERM cases nommu: pass NULL argument to vma_iter_prealloc() ocfs2: fix UBSAN warning in ocfs2_verify_volume() nilfs2: fix null-ptr-deref in block_dirty_buffer tracepoint nilfs2: fix null-ptr-deref in block_touch_buffer tracepoint mm: page_alloc: move mlocked flag clearance into free_pages_prepare() mm: count zeromap read and set for swapout and swapin |
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Paul E. McKenney
|
32693634cd |
torture: Add --no-affinity parameter to kvm.sh
In performance tests, it can be counter-productive to spread torture-test guest OSes across sockets. Plus the experimenter might have ideas about what CPUs individual guest OSes are to run on. This commit therefore adds a --no-affinity parameter to kvm.sh to prevent it from running taskset on its guest OSes. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> |
||
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Linus Torvalds
|
14b6320953 |
KVM x86 and selftests fixes for 6.12:
x86:
- When emulating a guest TLB flush for a nested guest, flush vpid01, not
vpid02, if L2 is active but VPID is disabled in vmcs12, i.e. if L2 and
L1 are sharing VPID '0' (from L1's perspective).
- Fix a bug in the SNP initialization flow where KVM would return '0' to
userspace instead of -errno on failure.
- Move the Intel PT virtualization (i.e. outputting host trace to host
buffer and guest trace to guest buffer) behind CONFIG_BROKEN.
- Fix memory leak on failure of KVM_SEV_SNP_LAUNCH_START
- Fix a bug where KVM fails to inject an interrupt from the IRR after
KVM_SET_LAPIC.
Selftests:
- Increase the timeout for the memslot performance selftest to avoid false
failures on arm64 and nested x86 platforms.
- Fix a goof in the guest_memfd selftest where a for-loop initialized a
bit mask to zero instead of BIT(0).
- Disable strict aliasing when building KVM selftests to prevent the
compiler from treating things like "u64 *" to "uint64_t *" cases as
undefined behavior, which can lead to nasty, hard to debug failures.
- Force -march=x86-64-v2 for KVM x86 selftests if and only if the uarch
is supported by the compiler.
- Fix broken compilation of kvm selftests after a header sync in tools/
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"x86 and selftests fixes.
x86:
- When emulating a guest TLB flush for a nested guest, flush vpid01,
not vpid02, if L2 is active but VPID is disabled in vmcs12, i.e. if
L2 and L1 are sharing VPID '0' (from L1's perspective).
- Fix a bug in the SNP initialization flow where KVM would return '0'
to userspace instead of -errno on failure.
- Move the Intel PT virtualization (i.e. outputting host trace to
host buffer and guest trace to guest buffer) behind CONFIG_BROKEN.
- Fix memory leak on failure of KVM_SEV_SNP_LAUNCH_START
- Fix a bug where KVM fails to inject an interrupt from the IRR after
KVM_SET_LAPIC.
Selftests:
- Increase the timeout for the memslot performance selftest to avoid
false failures on arm64 and nested x86 platforms.
- Fix a goof in the guest_memfd selftest where a for-loop initialized
a bit mask to zero instead of BIT(0).
- Disable strict aliasing when building KVM selftests to prevent the
compiler from treating things like "u64 *" to "uint64_t *" cases as
undefined behavior, which can lead to nasty, hard to debug
failures.
- Force -march=x86-64-v2 for KVM x86 selftests if and only if the
uarch is supported by the compiler.
- Fix broken compilation of kvm selftests after a header sync in
tools/"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: VMX: Bury Intel PT virtualization (guest/host mode) behind CONFIG_BROKEN
KVM: x86: Unconditionally set irr_pending when updating APICv state
kvm: svm: Fix gctx page leak on invalid inputs
KVM: selftests: use X86_MEMTYPE_WB instead of VMX_BASIC_MEM_TYPE_WB
KVM: SVM: Propagate error from snp_guest_req_init() to userspace
KVM: nVMX: Treat vpid01 as current if L2 is active, but with VPID disabled
KVM: selftests: Don't force -march=x86-64-v2 if it's unsupported
KVM: selftests: Disable strict aliasing
KVM: selftests: fix unintentional noop test in guest_memfd_test.c
KVM: selftests: memslot_perf_test: increase guest sync timeout
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Donet Tom
|
fae1980347 |
selftests: hugetlb_dio: fixup check for initial conditions to skip in the start
This test verifies that a hugepage, used as a user buffer for DIO operations, is correctly freed upon unmapping. To test this, we read the count of free hugepages before and after the mmap, DIO, and munmap operations, then check if the free hugepage count is the same. Reading free hugepages before the test was removed by commit |
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Mark Brown
|
91a6533811 |
kselftest/arm64: Try harder to generate different keys during PAC tests
We very intermittently see failures in the single_thread_different_keys PAC test. As noted in the comment in the test the PAC field can be quite narrow so there is a chance of collisions even with different keys with a chance of 5% for 7 bit keys, and the potential for narrower keys. The test tries to avoid this by running repeatedly, but only tries 10 times which even with a 5% chance of collisions isn't enough. Increase the number of times we attempt to look for collisions by a factor of 100, this also affects other tests which are following a similar pattern with running the test repeatedly and either don't care like with pac_instruction_not_nop or potentially have the same issue like exec_sign_all. The PAC tests are very fast, running in a second or two even in emulation, so the 100x increased cost is mildly irritating but not a huge issue. The bulk of the overhead is in the exec_sign_all test which does a fork() and exec() per iteration. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241111-arm64-pac-test-collisions-v1-2-171875f37e44@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
|
27141b6905 |
kselftest/arm64: Don't leak pipe fds in pac.exec_sign_all()
The PAC exec_sign_all() test spawns some child processes, creating pipes to be stdin and stdout for the child. It cleans up most of the file descriptors that are created as part of this but neglects to clean up the parent end of the child stdin and stdout. Add the missing close() calls. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241111-arm64-pac-test-collisions-v1-1-171875f37e44@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
|
3e360ef0c0 |
kselftest/arm64: Corrupt P0 in the irritator when testing SSVE
When building for streaming SVE the irritator for SVE skips updates of both P0 and FFR. While FFR is skipped since it might not be present there is no reason to skip corrupting P0 so switch to an instruction valid in streaming mode and move the ifdef. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241107-arm64-fp-stress-irritator-v2-3-c4b9622e36ee@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Paul E. McKenney
|
930d4e1344 |
rcutorture: Add light-weight SRCU scenario
This commit adds an rcutorture scenario that tests light-weight SRCU readers. While in the area, it adjusts the size of the TREE10 scenario. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Kent Overstreet <kent.overstreet@linux.dev> Cc: <bpf@vger.kernel.org> Reviewed-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> |
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Catalin Marinas
|
016d659e62 |
kselftest/arm64: Fix missing printf() argument in gcs/gcs-stress.c
Compiling the child_cleanup() function results in:
gcs-stress.c: In function ‘child_cleanup’:
gcs-stress.c:266:75: warning: format ‘%d’ expects a matching ‘int’ argument [-Wformat=]
266 | ksft_print_msg("%s: Exited due to signal %d\n",
| ~^
| |
| int
Add the missing child->exit_signal argument.
Fixes:
|
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Mark Brown
|
7dbd26d0b2 |
kselftest/arm64: Add FPMR coverage to fp-ptrace
Add coverage for FPMR to fp-ptrace. FPMR can be available independently of SVE and SME, if SME is supported then FPMR is cleared by entering and exiting streaming mode. As with other registers we generate random values to load into the register, we restrict these to bitfields which are always defined. We also leave bitfields where the valid values are affected by the set of supported FP8 formats zero to reduce complexity, it is unlikely that specific bitfields will be affected by ptrace issues. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241112-arm64-fp-ptrace-fpmr-v2-3-250b57c61254@kernel.org [catalin.marinas@arm.com: use REG_FPMR instead of FPMR] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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7e9c5b0000 |
kselftest/arm64: Expand the set of ZA writes fp-ptrace does
Currently our test for implementable ZA writes is written in a bit of a convoluted fashion which excludes all changes where we clear SVCR.SM even though we can actually support that since changing the vector length resets SVCR. Make the logic more direct, enabling us to actually run these cases. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241112-arm64-fp-ptrace-fpmr-v2-2-250b57c61254@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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c0350076c1 |
kselftets/arm64: Use flag bits for features in fp-ptrace assembler code
The assembler portions of fp-ptrace are passed feature flags by the C code indicating which architectural features are supported. Currently these use an entire register for each flag which is wasteful and gets cumbersome as new flags are added. Switch to using flag bits in a single register to make things easier to maintain. No functional change. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241112-arm64-fp-ptrace-fpmr-v2-1-250b57c61254@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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c297aa7d3f |
kselftest/arm64: Enable build of PAC tests with LLVM=1
Currently we don't build the PAC selftests when building with LLVM=1 since we attempt to test for PAC support in the toolchain before we've set up the build system to point at LLVM in lib.mk, which has to be one of the last things in the Makefile. Since all versions of LLVM supported for use with the kernel have PAC support we can just sidestep the issue by just assuming PAC is there when doing a LLVM=1 build. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241111-arm64-selftest-pac-clang-v1-1-08599ceee418@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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116e50d647 |
kselftest/arm64: Check that SVCR is 0 in signal handlers
We don't currently validate that we exit streaming mode and clear ZA when we enter a signal handler. Add simple checks for this in the SSVE and ZA tests. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241106-arm64-fpmr-signal-test-v1-1-31fa34ce58fe@kernel.org [catalin.marinas@arm.com: Use %lx in fprintf() as uint64_t seems to be unsigned long in glibc] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Catalin Marinas
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929bbc16ab |
selftests/mm: Fix unused function warning for aarch64_write_signal_pkey()
Since commit |
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Catalin Marinas
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694e2803fe |
kselftest/arm64: Fix printf() compiler warnings in the arm64 syscall-abi.c tests
Fix the incorrect length modifiers in arm64/abi/syscall-abi.c. Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: Mark Brown <broonie@kernel.org> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241108134920.1233992-4-catalin.marinas@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Catalin Marinas
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0cc6b94a44 |
kselftest/arm64: Fix printf() warning in the arm64 MTE prctl() test
While prctl() returns an 'int', the PR_MTE_TCF_MASK is defined as unsigned long which results in the larger type following a bitwise 'and' operation. Cast the printf() argument to 'int'. Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241108134920.1233992-3-catalin.marinas@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Catalin Marinas
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b6bd50dd3b |
kselftest/arm64: Fix printf() compiler warnings in the arm64 fp tests
Lots of incorrect length modifiers, missing arguments or conversion specifiers. Fix them. Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: Mark Brown <broonie@kernel.org> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241108134920.1233992-2-catalin.marinas@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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ae465d9ca1 |
kselftest/arm64: Fix build with stricter assemblers
While some assemblers (including the LLVM assembler I mostly use) will
happily accept SMSTART as an instruction by default others, specifically
gas, require that any architecture extensions be explicitly enabled.
The assembler SME test programs use manually encoded helpers for the new
instructions but no SMSTART helper is defined, only SM and ZA specific
variants. Unfortunately the irritators that were just added use plain
SMSTART so on stricter assemblers these fail to build:
za-test.S:160: Error: selected processor does not support `smstart'
Switch to using SMSTART ZA via the manually encoded smstart_za macro we
already have defined.
Fixes:
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Linus Torvalds
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28e43197c4 |
20 hotfixes, 14 of which are cc:stable.
Three affect DAMON. Lorenzo's five-patch series to address the
mmap_region error handling is here also.
Apart from that, various singletons.
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Merge tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"20 hotfixes, 14 of which are cc:stable.
Three affect DAMON. Lorenzo's five-patch series to address the
mmap_region error handling is here also.
Apart from that, various singletons"
* tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mailmap: add entry for Thorsten Blum
ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()
signal: restore the override_rlimit logic
fs/proc: fix compile warning about variable 'vmcore_mmap_ops'
ucounts: fix counter leak in inc_rlimit_get_ucounts()
selftests: hugetlb_dio: check for initial conditions to skip in the start
mm: fix docs for the kernel parameter ``thp_anon=``
mm/damon/core: avoid overflow in damon_feed_loop_next_input()
mm/damon/core: handle zero schemes apply interval
mm/damon/core: handle zero {aggregation,ops_update} intervals
mm/mlock: set the correct prev on failure
objpool: fix to make percpu slot allocation more robust
mm/page_alloc: keep track of free highatomic
mm: resolve faulty mmap_region() error path behaviour
mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling
mm: refactor map_deny_write_exec()
mm: unconditionally close VMAs on error
mm: avoid unsafe VMA hook invocation when error arises on mmap hook
mm/thp: fix deferred split unqueue naming and locking
mm/thp: fix deferred split queue not partially_mapped
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Jakub Kicinski
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252e01e682 |
selftests: net: add netlink-dumps to .gitignore
Commit
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John Sperbeck
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10299cdde8 |
KVM: selftests: use X86_MEMTYPE_WB instead of VMX_BASIC_MEM_TYPE_WB
In |
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Paolo Bonzini
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9893deb08b |
Merge tag 'kvm-x86-fixes-6.12-rcN' of https://github.com/kvm-x86/linux into HEAD
KVM x86 and selftests fixes for 6.12: - Increase the timeout for the memslot performance selftest to avoid false failures on arm64 and nested x86 platforms. - Fix a goof in the guest_memfd selftest where a for-loop initialized a bit mask to zero instead of BIT(0). - Disable strict aliasing when building KVM selftests to prevent the compiler from treating things like "u64 *" to "uint64_t *" cases as undefined behavior, which can lead to nasty, hard to debug failures. - Force -march=x86-64-v2 for KVM x86 selftests if and only if the uarch is supported by the compiler. - When emulating a guest TLB flush for a nested guest, flush vpid01, not vpid02, if L2 is active but VPID is disabled in vmcs12, i.e. if L2 and L1 are sharing VPID '0' (from L1's perspective). - Fix a bug in the SNP initialization flow where KVM would return '0' to userspace instead of -errno on failure. |
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Muhammad Usama Anjum
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0268d45799 |
selftests: hugetlb_dio: check for initial conditions to skip in the start
The test should be skipped if initial conditions aren't fulfilled in the
start instead of failing and outputting non-compliant TAP logs. This kind
of failure pollutes the results. The initial conditions are:
- The test should only execute if /tmp file can be allocated.
- The test should only execute if huge pages are free.
Before:
TAP version 13
1..4
Bail out! Error opening file
: Read-only file system (30)
# Planned tests != run tests (4 != 0)
# Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0
After:
TAP version 13
1..0 # SKIP Unable to allocate file: Read-only file system
Link: https://lkml.kernel.org/r/20241101141557.3159432-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Fixes:
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Kevin Brodsky
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db64dfffca |
selftests/mm: Define PKEY_UNRESTRICTED for pkey_sighandler_tests
Commit |
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Jakub Kicinski
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55d42a0c3f |
selftests: net: add a test for closing a netlink socket ith dump in progress
Close a socket with dump in progress. We need a dump which generates enough info not to fit into a single skb. Policy dump fits the bill. Use the trick discovered by syzbot for keeping a ref on the socket longer than just close, with mqueue. TAP version 13 1..3 # Starting 3 tests from 1 test cases. # RUN global.test_sanity ... # OK global.test_sanity ok 1 global.test_sanity # RUN global.close_in_progress ... # OK global.close_in_progress ok 2 global.close_in_progress # RUN global.close_with_ref ... # OK global.close_with_ref ok 3 global.close_with_ref # PASSED: 3 / 3 tests passed. # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0 Note that this test is not expected to fail but rather crash the kernel if we get the cleanup wrong. Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20241106015235.2458807-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Mark Brown
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ead1c35ce3 |
kselftest/arm64: Test signal handler state modification in fp-stress
Currently in fp-stress we test signal delivery to the test threads by sending SIGUSR2 which simply counts how many signals are delivered. The test programs now also all have a SIGUSR1 handler which for the threads doing userspace testing additionally modifies the floating point register state in the signal handler, verifying that when we return the saved register state is restored from the signal context as expected. Switch over to triggering that to validate that we are restoring as expected. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241107-arm64-fp-stress-irritator-v2-6-c4b9622e36ee@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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7368debf27 |
kselftest/arm64: Provide a SIGUSR1 handler in the kernel mode FP stress test
The other stress test programs provide a SIGUSR1 handler which modifies the live register state in order to validate that signal context is being restored during signal return. While we can't usefully do this when testing kernel mode FP usage provide a handler for SIGUSR1 which just counts the number of signals like we do for SIGUSR2, allowing fp-stress to treat all the test programs uniformly. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241107-arm64-fp-stress-irritator-v2-5-c4b9622e36ee@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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d65f27d240 |
kselftest/arm64: Implement irritators for ZA and ZT
Currently we don't use the irritator signal in our floating point stress tests so when we added ZA and ZT stress tests we didn't actually bother implementing any actual action in the handlers, we just counted the signal deliveries. In preparation for using the irritators let's implement them, just trivially SMSTOP and SMSTART to reset all bits in the register to 0. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241107-arm64-fp-stress-irritator-v2-4-c4b9622e36ee@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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ffca567fef |
kselftest/arm64: Remove unused ADRs from irritator handlers
The irritator handlers for the fp-stress test programs all use ADR to load an address into x0 which is then not referenced. Remove these ADRs as they just cause confusion. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241107-arm64-fp-stress-irritator-v2-2-c4b9622e36ee@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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94de486e42 |
kselftest/arm64: Correct misleading comments on fp-stress irritators
The comments in the handlers for the irritator signal in the test threads for fp-stress suggest that the irritator will corrupt the register state observed by the main thread but this is not the case, instead the FPSIMD and SVE irritators (which are the only ones that are implemented) modify the current register state which is expected to be overwritten on return from the handler by the saved register state. Update the comment to reflect what the handler is actually doing. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20241107-arm64-fp-stress-irritator-v2-1-c4b9622e36ee@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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161e992505 |
kselftest/arm64: Poll less often while waiting for fp-stress children
While fp-stress is waiting for children to start it doesn't send any signals to them so there is no need for it to have as short an epoll() timeout as it does when the children are all running. We do still want to have some timeout so that we can log diagnostics about missing children but this can be relatively large. On emulated platforms the overhead of running the supervisor process is quite high, especially during the process of execing the test binaries. Implement a longer epoll() timeout during the setup phase, using a 5s timeout while waiting for children and switching to the signal raise interval when all the children are started and we start sending signals. Signed-off-by: Mark Brown <broonie@kernel.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20241030-arm64-fp-stress-interval-v2-2-bd3cef48c22c@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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Mark Brown
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a3590d71a1 |
kselftest/arm64: Increase frequency of signal delivery in fp-stress
Currently we only deliver signals to the processes being tested about once a second, meaning that the signal code paths are subject to relatively little stress. Increase this frequency substantially to 25ms intervals, along with some minor refactoring to make this more readily tuneable and maintain the 1s logging interval. This interval was chosen based on some experimentation with emulated platforms to avoid causing so much extra load that the test starts to run into the 45s limit for selftests or generally completely disconnect the timeout numbers from the We could increase this if we moved the signal generation out of the main supervisor thread, though we should also consider that he percentage of time that we spend interacting with the floating point state is also a consideration. Suggested-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20241030-arm64-fp-stress-interval-v2-1-bd3cef48c22c@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |