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Update the guest_memfd_test selftest to use getpagesize() instead of
hardcoded 4KB page size values.
Using hardcoded page sizes can cause test failures on architectures or
systems configured with larger page sizes, such as arm64 with 64KB
pages. By dynamically querying the system's page size, the test becomes
more portable and robust across different environments.
Additionally, build the guest_memfd_test selftest for arm64.
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Shivank Garg <shivankg@amd.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Suggested-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20250729225455.670324-23-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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* Use array_index_nospec() to sanitize the target vCPU ID when handling PV
IPIs and yields as the ID is guest-controlled.
* Drop a superfluous cpumask_empty() check when reclaiming SEV memory, as
the common case, by far, is that at least one CPU will have entered the
VM, and wbnoinvd_on_cpus_mask() will naturally handle the rare case where
the set of have_run_cpus is empty.
* Rename the is_signed_type() macro in kselftest_harness.h to is_signed_var()
to fix a collision with linux/overflow.h. The collision generates compiler
warnings due to the two macros having different implementations.
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KVM x86 fixes and a selftest fix for 6.17-rcN
- Use array_index_nospec() to sanitize the target vCPU ID when handling PV
IPIs and yields as the ID is guest-controlled.
- Drop a superfluous cpumask_empty() check when reclaiming SEV memory, as
the common case, by far, is that at least one CPU will have entered the
VM, and wbnoinvd_on_cpus_mask() will naturally handle the rare case where
the set of have_run_cpus is empty.
- Rename the is_signed_type() macro in kselftest_harness.h to is_signed_var()
to fix a collision with linux/overflow.h. The collision generates compiler
warnings due to the two macros having different implementations.
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I can never remember whether --raw_output takes 'all' or 'full'. No
reason we can't support both.
For the record, 'all' is the recommended, documented option.
Link: https://lore.kernel.org/r/20250730031624.1911689-1-davidgow@google.com
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Make sure we set HDS threshold to 0 if the device supports changing it.
It's required for ZC.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250825180447.2252977-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Restore HDS settings if we modified them.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250825180447.2252977-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In case changing channel count with provider bound succeeds
unexpectedly - make sure we return to original settings.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250825180447.2252977-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In prep for more selective resetting of ntuple filters
try to save the rule IDs to a table.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250825180447.2252977-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Using error() makes it impossible for callers to unwind their
changes. Replace error() calls with proper error handling.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250825180447.2252977-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The test currently modifies the HDS settings and doesn't restore them.
This may cause subsequent tests to fail (or pass when they should not).
Add defer()ed reset handling.
Link: https://patch.msgid.link/20250825175939.2249165-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The may_goto instruction is now fully supported on s390x, including the
timed implementation, so remove the respective test from the denylist.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20250821113339.292434-6-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Now that the timed may_goto implementation is available on s390x,
enable the respective verifier tests.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20250821113339.292434-5-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Make it possible to limit certain tests to s390x, just like it's
already done for x86_64, arm64, and riscv64.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20250821113339.292434-4-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Fix error messages like this one:
parse_test_spec:FAIL:569 bad arch spec: 's390x'process_subtest:FAIL:1153 Can't parse test spec for program 'may_goto_simple'
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20250821113339.292434-3-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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`config.{arch}` had entries already present in `config`.
When generating the config used by vmtest, concatenate the `config` file
with the `config.{arch}` one, making those entries duplicated, so remove
those duplications.
Use the following command to get the differences:
$ comm -1 -2 <(sort tools/testing/selftests/bpf/config.x86_64) <(sort tools/testing/selftests/bpf/config)
$ comm -1 -2 <(sort tools/testing/selftests/bpf/config.aarch64) <(sort tools/testing/selftests/bpf/config)
$ comm -1 -2 <(sort tools/testing/selftests/bpf/config.riscv64) <(sort tools/testing/selftests/bpf/config)
$ comm -1 -2 <(sort tools/testing/selftests/bpf/config.ppc64el) <(sort tools/testing/selftests/bpf/config)
$ comm -1 -2 <(sort tools/testing/selftests/bpf/config.s390x) <(sort tools/testing/selftests/bpf/config)
This is similar with commit 7a42af4b94f1 ("selftests/bpf: Remove entries
from config.s390x already present in config").
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20250826065057.11415-1-yangtiezhu@loongson.cn
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addresses
Add a test for ensuring that the dst hint mechanism is used for
directed broadcast addresses.
This test relies on mausezahn for sending directed broadcast packets.
Additionally, a high GRO flush timeout is set to ensure that packets
will be received as lists.
The test determines if the hint mechanism was used by checking
the in_brd statistic using lnstat.
Signed-off-by: Oscar Maes <oscmaes92@gmail.com>
Link: https://patch.msgid.link/20250819174642.5148-3-oscmaes92@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Some rtnetlink selftests assume the presence of ifconfig and iproute2
support for the `proto` keyword in `ip address` commands. These
assumptions can cause test failures on modern systems (e.g. Debian
Bookworm) where:
- ifconfig is not installed by default
- The iproute2 version lacks support for address protocol
This patch improves test robustness by:
- Skipping kci_test_promote_secondaries if ifconfig is missing
- Skipping do_test_address_proto if ip address help does not mention
proto
These changes ensure the tests degrade gracefully by reporting SKIP
instead of FAIL when prerequisites are not met, improving portability
across systems.
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Alessandro Ratti <alessandro@0x65c.net>
Link: https://patch.msgid.link/20250822140633.891360-2-alessandro@0x65c.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When synthesizing build-ids, for build ID mmap2 events, they will be
added for data mmaps if -d/--data is specified. The files opened for
their build IDs may block on the open causing perf to hang during
synthesis. There is some robustness in existing calls to
filename__read_build_id by checking the file path is to a regular
file, which unfortunately fails for symlinks. Rather than adding more
is_regular_file calls, switch filename__read_build_id to take a
"block" argument and specify O_NONBLOCK when this is false. The
existing is_regular_file checking callers and the event synthesis
callers are made to pass false and thereby avoiding the hang.
Fixes: 53b00ff358dc ("perf record: Make --buildid-mmap the default")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250823000024.724394-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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The e_ident is part of the ehdr and so reading it a second time would
mean the read ehdr was displaced by 16-bytes. Switch from stdio to
open/read/lseek syscalls for similarity with the symbol-elf version of
the function and so that later changes can alter then open flags.
Fixes: fef8f648bb47 ("perf symbol: Fix use-after-free in filename__read_build_id")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250823000024.724394-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Kernel tries to be helpful and attach the XDP program in generic
mode if the driver has no BPF ndo at all. Since the xdp.py tests
all have "native" in their names this can be quite confusing.
Force native / "drv" attachment. Note that netdevsim re-uses
the generic handler as its "native" handler, so we'll maintain
the test coverage of the generic mode that way. No need to test
both explicitly, I reckon.
Link: https://patch.msgid.link/20250822195645.1673390-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We need the char/misc/iio fixes in here as well to build on.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix rtla and latency tooling pkg-config errors
If libtraceevent and libtracefs is installed, but their corresponding
'.pc' files are not installed, it reports that the libraries are
missing and confuses the developer. Instead, report that the
pkg-config files are missing and should be installed.
- Fix overflow bug of the parser in trace_get_user()
trace_get_user() uses the parsing functions to parse the user space
strings. If the parser fails due to incorrect processing, it doesn't
terminate the buffer with a nul byte. Add a "failed" flag to the
parser that gets set when parsing fails and is used to know if the
buffer is fine to use or not.
- Remove a semicolon that was at an end of a comment line
- Fix register_ftrace_graph() to unregister the pm notifier on error
The register_ftrace_graph() registers a pm notifier but there's an
error path that can exit the function without unregistering it. Since
the function returns an error, it will never be unregistered.
- Allocate and copy ftrace hash for reader of ftrace filter files
When the set_ftrace_filter or set_ftrace_notrace files are open for
read, an iterator is created and sets its hash pointer to the
associated hash that represents filtering or notrace filtering to it.
The issue is that the hash it points to can change while the
iteration is happening. All the locking used to access the tracer's
hashes are released which means those hashes can change or even be
freed. Using the hash pointed to by the iterator can cause UAF bugs
or similar.
Have the read of these files allocate and copy the corresponding
hashes and use that as that will keep them the same while the
iterator is open. This also simplifies the code as opening it for
write already does an allocate and copy, and now that the read is
doing the same, there's no need to check which way it was opened on
the release of the file, and the iterator hash can always be freed.
- Fix function graph to copy args into temp storage
The output of the function graph tracer shows both the entry and the
exit of a function. When the exit is right after the entry, it
combines the two events into one with the output of "function();",
instead of showing:
function() {
}
In order to do this, the iterator descriptor that reads the events
includes storage that saves the entry event while it peaks at the
next event in the ring buffer. The peek can free the entry event so
the iterator must store the information to use it after the peek.
With the addition of function graph tracer recording the args, where
the args are a dynamic array in the entry event, the temp storage
does not save them. This causes the args to be corrupted or even
cause a read of unsafe memory.
Add space to save the args in the temp storage of the iterator.
- Fix race between ftrace_dump and reading trace_pipe
ftrace_dump() is used when a crash occurs where the ftrace buffer
will be printed to the console. But it can also be triggered by
sysrq-z. If a sysrq-z is triggered while a task is reading trace_pipe
it can cause a race in the ftrace_dump() where it checks if the
buffer has content, then it checks if the next event is available,
and then prints the output (regardless if the next event was
available or not). Reading trace_pipe at the same time can cause it
to not be available, and this triggers a WARN_ON in the print. Move
the printing into the check if the next event exists or not
* tag 'trace-v6.17-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ftrace: Also allocate and copy hash for reading of filter files
ftrace: Fix potential warning in trace_printk_seq during ftrace_dump
fgraph: Copy args in intermediate storage with entry
trace/fgraph: Fix the warning caused by missing unregister notifier
ring-buffer: Remove redundant semicolons
tracing: Limit access to parser->buffer when trace_get_user failed
rtla: Check pkg-config install
tools/latency-collector: Check pkg-config install
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Test cgroup v2 freezer time stat. Freezer time accounting should
be independent of other cgroups in the hierarchy and should increase
iff a cgroup is CGRP_FREEZE (regardless of whether it reaches
CGRP_FROZEN).
Skip these tests on systems without freeze time accounting.
Signed-off-by: Tiffany Yang <ynaffit@google.com>
Cc: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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This patch adds tests for the new jeq and jne logic in
is_scalar_branch_taken. The following shows the first test failing
before the previous patch is applied. Once the previous patch is
applied, the verifier can use the tnum values to deduce that instruction
7 is dead code.
0: call bpf_get_prandom_u32#7 ; R0_w=scalar()
1: w0 = w0 ; R0_w=scalar(smin=0,smax=umax=0xffffffff,var_off=(0x0; 0xffffffff))
2: r0 >>= 30 ; R0_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=3,var_off=(0x0; 0x3))
3: r0 <<= 30 ; R0_w=scalar(smin=0,smax=umax=umax32=0xc0000000,smax32=0x40000000,var_off=(0x0; 0xc0000000))
4: r1 = r0 ; R0_w=scalar(id=1,smin=0,smax=umax=umax32=0xc0000000,smax32=0x40000000,var_off=(0x0; 0xc0000000)) R1_w=scalar(id=1,smin=0,smax=umax=umax32=0xc0000000,smax32=0x40000000,var_off=(0x0; 0xc0000000))
5: r1 += 1024 ; R1_w=scalar(smin=umin=umin32=1024,smax=umax=umax32=0xc0000400,smin32=0x80000400,smax32=0x40000400,var_off=(0x400; 0xc0000000))
6: if r1 != r0 goto pc+1 ; R0_w=scalar(id=1,smin=umin=umin32=1024,smax=umax=umax32=0xc0000000,smin32=0x80000400,smax32=0x40000000,var_off=(0x400; 0xc0000000)) R1_w=scalar(smin=umin=umin32=1024,smax=umax=umax32=0xc0000000,smin32=0x80000400,smax32=0x40000400,var_off=(0x400; 0xc0000000))
7: r10 = 0
frame pointer is read only
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/550004f935e2553bdb2fb1f09cbde7d0452112d0.1755694148.git.paul.chaignon@gmail.com
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Validate that drivers with multi-buff XDP programs properly reinitialize
xdp_buff between packets.
Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>
Link: https://patch.msgid.link/20250821014023.1481662-4-dimitri.daskalakis1@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Test single-buffer XDP_TX for packets with various payload sizes.
Update the socat TX command to generate packets with 0 length payloads.
Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>
Link: https://patch.msgid.link/20250821014023.1481662-3-dimitri.daskalakis1@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In preparation of single-buffer XDP_TX tests, refactor common test code
into the _test_xdp_native_tx method. Add support for multiple payload
sizes, and additional validation for RX packet count. Pass the -n flag
to echo to avoid adding an extra byte into the TX packet.
Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>
Link: https://patch.msgid.link/20250821014023.1481662-2-dimitri.daskalakis1@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull block fixes from Jens Axboe:
"A set of fixes for block that should go into this tree. A bit larger
than what I usually have at this point in time, a lot of that is the
continued fixing of the lockdep annotation for queue freezing that we
recently added, which has highlighted a number of little issues here
and there. This contains:
- MD pull request via Yu:
- Add a legacy_async_del_gendisk mode, to prevent a user tools
regression. New user tools releases will not use such a mode,
the old release with a new kernel now will have warning about
deprecated behavior, and we prepare to remove this legacy mode
after about a year later
- The rename in kernel causing user tools build failure, revert
the rename in mdp_superblock_s
- Fix a regression that interrupted resync can be shown as
recover from mdstat or sysfs
- Improve file size detection for loop, particularly for networked
file systems, by using getattr to get the size rather than the
cached inode size.
- Hotplug CPU lock vs queue freeze fix
- Lockdep fix while updating the number of hardware queues
- Fix stacking for PI devices
- Silence bio_check_eod() for the known case of device removal where
the size is truncated to 0 sectors"
* tag 'block-6.17-20250822' of git://git.kernel.dk/linux:
block: avoid cpu_hotplug_lock depedency on freeze_lock
block: decrement block_rq_qos static key in rq_qos_del()
block: skip q->rq_qos check in rq_qos_done_bio()
blk-mq: fix lockdep warning in __blk_mq_update_nr_hw_queues
block: tone down bio_check_eod
loop: use vfs_getattr_nosec for accurate file size
loop: Consolidate size calculation logic into lo_calculate_size()
block: remove newlines from the warnings in blk_validate_integrity_limits
block: handle pi_tuple_size in queue_limits_stack_integrity
selftests: ublk: Use ARRAY_SIZE() macro to improve code
md: fix sync_action incorrect display during resync
md: add helper rdev_needs_recovery()
md: keep recovery_cp in mdp_superblock_s
md: add legacy_async_del_gendisk mode
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"20 hotfixes. 10 are cc:stable and the remainder address post-6.16
issues or aren't considered necessary for -stable kernels. 17 of these
fixes are for MM.
As usual, singletons all over the place, apart from a three-patch
series of KHO followup work from Pasha which is actually also a bunch
of singletons"
* tag 'mm-hotfixes-stable-2025-08-21-18-17' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/mremap: fix WARN with uffd that has remap events disabled
mm/damon/sysfs-schemes: put damos dests dir after removing its files
mm/migrate: fix NULL movable_ops if CONFIG_ZSMALLOC=m
mm/damon/core: fix damos_commit_filter not changing allow
mm/memory-failure: fix infinite UCE for VM_PFNMAP pfn
MAINTAINERS: mark MGLRU as maintained
mm: rust: add page.rs to MEMORY MANAGEMENT - RUST
iov_iter: iterate_folioq: fix handling of offset >= folio size
selftests/damon: fix selftests by installing drgn related script
.mailmap: add entry for Easwar Hariharan
selftests/mm: add test for invalid multi VMA operations
mm/mremap: catch invalid multi VMA moves earlier
mm/mremap: allow multi-VMA move when filesystem uses thp_get_unmapped_area
mm/damon/core: fix commit_ops_filters by using correct nth function
tools/testing: add linux/args.h header and fix radix, VMA tests
mm/debug_vm_pgtable: clear page table entries at destroy_args()
squashfs: fix memory leak in squashfs_fill_super
kho: warn if KHO is disabled due to an error
kho: mm: don't allow deferred struct page with KHO
kho: init new_physxa->phys_bits to fix lockdep
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Remove 0/NULL global variable assignment in mixer-test.c and pcm-test.c
Signed-off-by: Nikola Z. Ivanov <zlatistiv@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20250821200132.1218850-1-zlatistiv@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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When we added coverage for ID_AA64MMFR3_EL1 we didn't add it to the list
of registers we read in the guest, do so.
Fixes: 0b593ef12afc ("KVM: arm64: selftests: Catch up set_id_regs with the kernel")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20250818-kvm-arm64-selftests-mmfr3-idreg-v1-1-2f85114d0163@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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The ARM64_FEATURE_MASK() macro was a hack introduce whilst the
automatic generation of sysreg encoding was introduced, and was
too unreliable to be entirely trusted.
We are in a better place now, and we could really do without this
macro. Get rid of it altogether.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250817202158.395078-7-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Martin KaFai Lau says:
====================
pull-request: bpf-next 2025-08-21
We've added 9 non-merge commits during the last 3 day(s) which contain
a total of 13 files changed, 1027 insertions(+), 27 deletions(-).
The main changes are:
1) Added bpf dynptr support for accessing the metadata of a skb,
from Jakub Sitnicki.
The patches are merged from a stable branch bpf-next/skb-meta-dynptr.
The same patches have also been merged into bpf-next/master.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next:
selftests/bpf: Cover metadata access from a modified skb clone
selftests/bpf: Cover read/write to skb metadata at an offset
selftests/bpf: Cover write access to skb metadata via dynptr
selftests/bpf: Cover read access to skb metadata via dynptr
selftests/bpf: Parametrize test_xdp_context_tuntap
selftests/bpf: Pass just bpf_map to xdp_context_test helper
selftests/bpf: Cover verifier checks for skb_meta dynptr type
bpf: Enable read/write access to skb metadata through a dynptr
bpf: Add dynptr type for skb metadata
====================
Link: https://patch.msgid.link/20250821191827.2099022-1-martin.lau@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a cpuidle menu governor issue and two issues in the cpupower
utility:
- Prevent the menu cpuidle governor from selecting idle states with
exit latency exceeding the current PM QoS limit after stopping the
scheduler tick (Rafael Wysocki)
- Make the set subcommand's -t option in the cpupower utility work as
documented and allow it to control the CPU boost feature of cpufreq
beyond x86 (Shinji Nomoto)"
* tag 'pm-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpuidle: governors: menu: Avoid selecting states with too much latency
cpupower: Allow control of boost feature on non-x86 based systems with boost support.
cpupower: Fix a bug where the -t option of the set subcommand was not working.
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
- Fix a subtle bug during SCX enabling where a dead task skips init
but doesn't skip sched class switch leading to invalid task state
transition warning
- Cosmetic fix in selftests
* tag 'sched_ext-for-6.17-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
selftests/sched_ext: Remove duplicate sched.h header
sched/ext: Fix invalid task state transitions on class switch
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Cross-merge networking fixes after downstream PR (net-6.17-rc3).
No conflicts or adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Some of the bpf test progs still use linux/libc headers.
Let's use vmlinux.h instead like the rest of test progs.
This will also ease cross compiling.
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250821030254.398826-1-hengqi.chen@gmail.com
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IA32_PERF_CAPABILITIES.PEBS_TIMING_INFO[bit 17] is introduced to
indicate whether timed PEBS is supported. Timed PEBS adds a new "retired
latency" field in basic info group to show the timing info. Please find
detailed information about timed PEBS in section 8.4.1 "Timed Processor
Event Based Sampling" of "Intel Architecture Instruction Set Extensions
and Future Features".
This patch adds PERF_CAP_PEBS_TIMING_INFO flag and KVM module leverages
this flag to expose timed PEBS feature to guest.
Moreover, opportunistically refine the indents and make the macros
share consistent indents.
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Yi Lai <yi1.lai@intel.com>
Link: https://lore.kernel.org/r/20250820023032.17128-5-dapeng1.mi@linux.intel.com
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Adding uprobe checks into the current uretprobe tests.
All the related tests are now executed with attached uprobe
or uretprobe or without any probe.
Renaming the test fixture to uprobe, because it seems better.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kees Cook <kees@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-22-jolsa@kernel.org
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Now that we have uprobe syscall working properly with shadow stack,
we can remove testing limitations for shadow stack tests and make
sure uprobe gets properly optimized.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20250821141557.13233-1-jolsa@kernel.org
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Changing the test_uretprobe_regs_change test to test both uprobe
and uretprobe by adding entry consumer handler to the testmod
and making it to change one of the registers.
Making sure that changed values both uprobe and uretprobe handlers
propagate to the user space.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-20-jolsa@kernel.org
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Changing uretprobe_regs_trigger to allow the test for both
uprobe and uretprobe and renaming it to uprobe_regs_equal.
We check that both uprobe and uretprobe probes (bpf programs)
see expected registers with few exceptions.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-19-jolsa@kernel.org
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Adding optimized usdt variant for basic usdt test to check that
usdt arguments are properly passed in optimized code path.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-18-jolsa@kernel.org
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Make sure that calling uprobe syscall from outside uprobe trampoline
results in sigill signal.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-17-jolsa@kernel.org
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Adding test that makes sure parallel execution of the uprobe and
attach/detach of optimized uprobe on it works properly.
By default the test runs for 500ms, which is adjustable by using
BPF_SELFTESTS_UPROBE_SYSCALL_RACE_MSEC env variable.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-16-jolsa@kernel.org
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Adding tests for optimized uprobe/usdt probes.
Checking that we get expected trampoline and attached bpf programs
get executed properly.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-15-jolsa@kernel.org
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Renaming uprobe_syscall_executed prog to test_uretprobe_multi
to fit properly in the following changes that add more programs.
Plus adding pid filter and increasing executed variable.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-14-jolsa@kernel.org
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Adding __test_uprobe_syscall with non x86_64 stub to execute all the tests,
so we don't need to keep adding non x86_64 stub functions for new tests.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-13-jolsa@kernel.org
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Importing usdt.h from libbpf/usdt project.
Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250720112133.244369-12-jolsa@kernel.org
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To free memory and close fd after use
Suggested-by: Jun Zhan <zhanjun@uniontech.com>
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Link: https://patch.msgid.link/20250819-memoryleak-v1-1-d4c70a861e62@uniontech.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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