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2025-05-05selftests: mptcp: refactor NLMSG handling with 'proto'Gang Yan
This patch introduces the '__u32 proto' variable to the 'send_query' and 'recv_nlmsg' functions for further extending function. In the 'send_query' function, the inclusion of this variable makes the structure clearer and more readable. In the 'recv_nlmsg' function, the '__u32 proto' variable ensures that the 'diag_info' field remains unmodified when processing IPPROTO_TCP data, thereby preventing unintended transformation into 'mptcp_info' format. While at it, increment iovlen directly when an item is added to simplify this portion of the code and improve its readaility. Co-developed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-5-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: refactor send_query parameters for code clarityGang Yan
This patch use 'inet_diag_req_v2' instead of 'token' as parameters of send_query, and construct the req in 'get_mptcpinfo'. This modification enhances the clarity of the code, and prepare for the dump_subflow_info. Co-developed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-4-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: add struct params in mptcp_diagGang Yan
This patch adds a struct named 'params' to save 'target_token' and other future parameters. This structure facilitates future function expansions. Co-developed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-3-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: sockopt: use IPPROTO_MPTCP for getaddrinfoGeliang Tang
getaddrinfo MPTCP is recently supported in glibc and IPPROTO_MPTCP for getaddrinfo is used in mptcp_connect.c. But in mptcp_sockopt.c and mptcp_inq.c, IPPROTO_TCP are still used for getaddrinfo, So this patch updates them. Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-2-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: info: hide 'grep: write error' warningsMatthieu Baerts (NGI0)
mptcp_lib_get_info_value() will only print the first entry that match the filter because of the ';q' at the end. As a consequence, the 'sed' command could finish before the previous 'grep' one and print a 'write error' warning because it is trying to write data to the closed pipe. Such warnings are not interesting, they can be hidden by muting stderr here for grep. While at it, clearly indicate that mptcp_lib_get_info_value() will only print the first matched entry to avoid confusions later on. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-1-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: ublk: kublk: fix include pathUday Shankar
Building kublk currently fails (with a "could not find linux/ublk_cmd.h" error message) if kernel headers are not installed in a system-global location (i.e. somewhere in the compiler's default include search path). This failure is unnecessary, as make kselftest installs kernel headers in the build tree - kublk's build just isn't looking for them properly. There is an include path in kublk's CFLAGS which is probably intended to find the kernel headers installed in the build tree; fix it so that it can actually find them. This introduces some macro redefinition issues between glibc-provided headers and kernel headers; fix those by eliminating one include in kublk. Signed-off-by: Uday Shankar <ushankar@purestorage.com> Reviewed-by: Caleb Sander Mateos <csander@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250429-ublk_selftests-v2-3-e970b6d9e4f4@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-05selftests: ublk: make test_generic_06 silent on successUday Shankar
Convention dictates that tests should not log anything on success. Make test_generic_06 follow this convention. Signed-off-by: Uday Shankar <ushankar@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250429-ublk_selftests-v2-2-e970b6d9e4f4@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-05selftests: ublk: kublk: build with -Werror iff WERROR!=0Uday Shankar
Compiler warnings can catch bugs at compile time; thus, heeding them is usually a good idea. Turn warnings into errors by default for the kublk build so that anyone making changes is forced to heed them. Compiler warnings can also sometimes produce annoying false positives, so provide a flag WERROR that the developer can use as follows to have the build and selftests run go through even if there are warnings: make WERROR=0 TARGETS=ublk kselftest Signed-off-by: Uday Shankar <ushankar@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250429-ublk_selftests-v2-1-e970b6d9e4f4@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-05libbpf: Improve BTF dedup handling of "identical" BTF typesAndrii Nakryiko
BTF dedup has a strong assumption that compiler with deduplicate identical types within any given compilation unit (i.e., .c file). This property is used when establishing equilvalence of two subgraphs of types. Unfortunately, this property doesn't always holds in practice. We've seen cases of having truly identical structs, unions, array definitions, and, most recently, even pointers to the same type being duplicated within CU. Previously, we mitigated this on a case-by-case basis, adding a few simple heuristics for validating that two BTF types (having two different type IDs) are structurally the same. But this approach scales poorly, and we can have more weird cases come up in the future. So let's take a half-step back, and implement a bit more generic structural equivalence check, recursively. We still limit it to reasonable depth to avoid long reference loops. Depth-wise limiting of potentially cyclical graph isn't great, but as I mentioned below doesn't seem to be detrimental performance-wise. We can always improve this in the future with per-type visited markers, if necessary. Performance-wise this doesn't seem too affect vmlinux BTF dedup, which makes sense because this logic kicks in not so frequently and only if we already established a canonical candidate type match, but suddenly find a different (but probably identical) type. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Alan Maguire <alan.maguire@oracle.com> Link: https://lore.kernel.org/r/20250501235231.1339822-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-05-05bpf: Fix uninitialized values in BPF_{CORE,PROBE}_READAnton Protopopov
With the latest LLVM bpf selftests build will fail with the following error message: progs/profiler.inc.h:710:31: error: default initialization of an object of type 'typeof ((parent_task)->real_cred->uid.val)' (aka 'const unsigned int') leaves the object uninitialized and is incompatible with C++ [-Werror,-Wdefault-const-init-unsafe] 710 | proc_exec_data->parent_uid = BPF_CORE_READ(parent_task, real_cred, uid.val); | ^ tools/testing/selftests/bpf/tools/include/bpf/bpf_core_read.h:520:35: note: expanded from macro 'BPF_CORE_READ' 520 | ___type((src), a, ##__VA_ARGS__) __r; \ | ^ This happens because BPF_CORE_READ (and other macro) declare the variable __r using the ___type macro which can inherit const modifier from intermediate types. Fix this by using __typeof_unqual__, when supported. (And when it is not supported, the problem shouldn't appear, as older compilers haven't complained.) Fixes: 792001f4f7aa ("libbpf: Add user-space variants of BPF_CORE_READ() family of macros") Fixes: a4b09a9ef945 ("libbpf: Add non-CO-RE variants of BPF_CORE_READ() macro family") Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250502193031.3522715-1-a.s.protopopov@gmail.com
2025-05-05selftests/bpf: Remove sockmap_ktls disconnect_after_delete testIhor Solodrai
"sockmap_ktls disconnect_after_delete" is effectively moot after disconnect has been disabled for TLS [1][2]. Remove the test completely. [1] https://lore.kernel.org/bpf/20250416170246.2438524-1-ihor.solodrai@linux.dev/ [2] https://lore.kernel.org/netdev/20250404180334.3224206-1-kuba@kernel.org/ Signed-off-by: Ihor Solodrai <isolodrai@meta.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250502185221.1556192-1-isolodrai@meta.com
2025-05-05selftests/tc-testing: Add a test case to cover basic HTB+FQ_CODEL caseCong Wang
Integrate the reproducer from Alan into TC selftests and use scapy to generate TCP traffic instead of relying on ping command. Cc: Alan J. Wylie <alan@wylie.me.uk> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Link: https://patch.msgid.link/20250428232955.1740419-3-xiyou.wangcong@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05Merge tag 'for-netdev' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Martin KaFai Lau says: ==================== pull-request: bpf-next 2025-05-02 We've added 14 non-merge commits during the last 10 day(s) which contain a total of 13 files changed, 740 insertions(+), 121 deletions(-). The main changes are: 1) Avoid skipping or repeating a sk when using a UDP bpf_iter, from Jordan Rife. 2) Fixed a crash when a bpf qdisc is set in the net.core.default_qdisc, from Amery Hung. 3) A few other fixes in the bpf qdisc, from Amery Hung. - Always call qdisc_watchdog_init() in the .init prologue such that the .reset/.destroy epilogue can always call qdisc_watchdog_cancel() without issue. - bpf_qdisc_init_prologue() was incorrectly returning an error when the bpf qdisc is set as the default_qdisc and the mq is creating the default_qdisc. It is now fixed. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: selftests/bpf: Cleanup bpf qdisc selftests selftests/bpf: Test attaching a bpf qdisc with incomplete operators bpf: net_sched: Make some Qdisc_ops ops mandatory selftests/bpf: Test setting and creating bpf qdisc as default qdisc bpf: net_sched: Fix bpf qdisc init prologue when set as default qdisc selftests/bpf: Add tests for bucket resume logic in UDP socket iterators selftests/bpf: Return socket cookies from sock_iter_batch progs bpf: udp: Avoid socket skips and repeats during iteration bpf: udp: Use bpf_udp_iter_batch_item for bpf_udp_iter_state batch items bpf: udp: Get rid of st_bucket_done bpf: udp: Make sure iter->batch always contains a full bucket snapshot bpf: udp: Make mem flags configurable through bpf_iter_udp_realloc_batch bpf: net_sched: Fix using bpf qdisc as default qdisc selftests/bpf: Fix compilation errors ==================== Link: https://patch.msgid.link/20250503010755.4030524-1-martin.lau@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05KVM: arm64: selftest: Don't try to disable AArch64 supportMarc Zyngier
Trying to cut the branch you are sat on is pretty dumb. And so is trying to disable the instruction set you are executing on. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com> Link: https://lore.kernel.org/r/20250429114117.3618800-3-maz@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-05-05Merge branch 'block-6.15' into for-6.16/blockJens Axboe
Merge 6.15 block fixes in, once again, to resolve conflicts with the fixes for ublk that went into mainline and the 6.16 ublk updates. * block-6.15: nvmet-auth: always free derived key data nvmet-tcp: don't restore null sk_state_change nvmet-tcp: select CONFIG_TLS from CONFIG_NVME_TARGET_TCP_TLS nvme-tcp: select CONFIG_TLS from CONFIG_NVME_TCP_TLS nvme-tcp: fix premature queue removal and I/O failover nvme-pci: add quirks for WDC Blue SN550 15b7:5009 nvme-pci: add quirks for device 126f:1001 nvme-pci: fix queue unquiesce check on slot_reset ublk: remove the check of ublk_need_req_ref() from __ublk_check_and_get_req ublk: enhance check for register/unregister io buffer command ublk: decouple zero copy from user copy selftests: ublk: fix UBLK_F_NEED_GET_DATA Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-05selftests: netfilter: nft_fib.sh: check lo packets bypass fib lookupFlorian Westphal
With reverted fix: PASS: fib expression did not cause unwanted packet drops [ 37.285169] ns1-KK76Kt nft_rpfilter: IN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=32287 DF PROTO=ICMP TYPE=8 CODE=0 ID=1818 SEQ=1 FAIL: rpfilter did drop packets FAIL: ns1-KK76Kt cannot reach 127.0.0.1, ret 0 Check for this. Link: https://lore.kernel.org/netfilter/20250422114352.GA2092@breakpoint.cc/ Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-05selftests: netfilter: add conntrack stress testFlorian Westphal
Add a new test case to check: - conntrack_max limit is effective - conntrack_max limit cannot be exceeded from within a netns - resizing the hash table while packets are inflight works - removal of all conntrack rules disables conntrack in netns - conntrack tool dump (conntrack -L) returns expected number of (unique) entries - procfs interface - if available - has same number of entries as conntrack -L dump Expected output with selftest framework: selftests: net/netfilter: conntrack_resize.sh PASS: got 1 connections: netns conntrack_max is pernet bound PASS: got 100 connections: netns conntrack_max is init_net bound PASS: dump in netns had same entry count (-C 1778, -L 1778, -p 1778, /proc 0) PASS: dump in netns had same entry count (-C 2000, -L 2000, -p 2000, /proc 0) PASS: test parallel conntrack dumps PASS: resize+flood PASS: got 0 connections: conntrack disabled PASS: got 1 connections: conntrack enabled ok 1 selftests: net/netfilter: conntrack_resize.sh Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-04Merge tag 'perf-tools-fixes-for-v6.15-2025-05-04' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools Pull perf tools fixes from Namhyung Kim: "Just a couple of build fixes on arm64" * tag 'perf-tools-fixes-for-v6.15-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: perf tools: Fix in-source libperf build perf tools: Fix arm64 build by generating unistd_64.h
2025-05-04x86/boot: Add a bunch of PIC aliasesArd Biesheuvel
Add aliases for all the data objects that the startup code references - this is needed so that this code can be moved into its own confined area where it can only access symbols that have a __pi_ prefix. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Dionna Amalie Glaze <dionnaglaze@google.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Kevin Loughlin <kevinloughlin@google.com> Cc: Len Brown <len.brown@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: linux-efi@vger.kernel.org Link: https://lore.kernel.org/r/20250504095230.2932860-39-ardb+git@google.com
2025-05-04Merge tag 'v6.15-rc4' into x86/fpu, to pick up fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-05-03Merge tag 'sound-6.15-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A bunch of small fixes. Mostly driver specific. - An OOB access fix in core UMP rawmidi conversion code - Fix for ASoC DAPM hw_params widget sequence - Make retry of usb_set_interface() errors for flaky devices - Fix redundant USB MIDI name strings - Quirks for various HP and ASUS models with HD-audio, and Jabra Evolve 65 USB-audio - Cirrus Kunit test fixes - Various fixes for ASoC Intel, stm32, renesas, imx-card, and simple-card" * tag 'sound-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (30 commits) ASoC: amd: ps: fix for irq handler return status ASoC: simple-card-utils: Fix pointer check in graph_util_parse_link_direction ASoC: intel/sdw_utils: Add volume limit to cs35l56 speakers ASoC: intel/sdw_utils: Add volume limit to cs42l43 speakers ASoC: stm32: sai: add a check on minimal kernel frequency ASoC: stm32: sai: skip useless iterations on kernel rate loop ALSA: hda/realtek - Add more HP laptops which need mute led fixup ALSA: hda/realtek: Fix built-mic regression on other ASUS models ASoC: Intel: catpt: avoid type mismatch in dev_dbg() format ALSA: usb-audio: Fix duplicated name in MIDI substream names ALSA: ump: Fix buffer overflow at UMP SysEx message conversion ALSA: usb-audio: Add second USB ID for Jabra Evolve 65 headset ALSA: hda/realtek: Add quirk for HP Spectre x360 15-df1xxx ALSA: hda: Apply volume control on speaker+lineout for HP EliteStudio AIO ASoC: Intel: bytcr_rt5640: Add DMI quirk for Acer Aspire SW3-013 ASoC: amd: acp: Fix devm_snd_soc_register_card(acp-pdm-mach) failure ASoC: amd: acp: Fix NULL pointer deref in acp_i2s_set_tdm_slot ASoC: amd: acp: Fix NULL pointer deref on acp resume path ASoC: renesas: rz-ssi: Use NOIRQ_SYSTEM_SLEEP_PM_OPS() ASoC: soc-acpi-intel-ptl-match: add empty item to ptl_cs42l43_l3[] ...
2025-05-03futex,selftests: Add another FUTEX2_NUMA selftestPeter Zijlstra
Implement a simple NUMA aware spinlock for testing and howto purposes. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2025-05-03selftests/futex: Add futex_numa_mpolSebastian Andrzej Siewior
Test the basic functionality for the NUMA and MPOL flags: - FUTEX2_NUMA should take the NUMA node which is after the uaddr and use it. - Only update the node if FUTEX_NO_NODE was set by the user - FUTEX2_MPOL should use the memory based on the policy. I attempted to set the node with mbind() and then use this with MPOL but this fails and futex falls back to the default node for the current CPU. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250416162921.513656-22-bigeasy@linutronix.de
2025-05-03selftests/futex: Add futex_priv_hashSebastian Andrzej Siewior
Test the basic functionality of the private hash: - Upon start, with no threads there is no private hash. - The first thread initializes the private hash. - More than four threads will increase the size of the private hash if the system has more than 16 CPUs online. - Once the user sets the size of private hash, auto scaling is disabled. - The user is only allowed to use numbers to the power of two. - The user may request the global or make the hash immutable. - Once the global hash has been set or the hash has been made immutable, further changes are not allowed. - Futex operations should work the whole time. It must be possible to hold a lock, such a PI initialised mutex, during the resize operation. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250416162921.513656-21-bigeasy@linutronix.de
2025-05-03selftests/futex: Build without headers nonsensePeter Zijlstra
Make it build without relying on recent headers. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2025-05-03tools/perf: Allow to select the number of hash bucketsSebastian Andrzej Siewior
Add the -b/ --buckets argument to specify the number of hash buckets for the private futex hash. This is directly passed to prctl(PR_FUTEX_HASH, PR_FUTEX_HASH_SET_SLOTS, buckets, immutable) and must return without an error if specified. The `immutable' is 0 by default and can be set to 1 via the -I/ --immutable argument. The size of the private hash is verified with PR_FUTEX_HASH_GET_SLOTS. If PR_FUTEX_HASH_GET_SLOTS failed then it is assumed that an older kernel was used without the support and that the global hash is used. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250416162921.513656-20-bigeasy@linutronix.de
2025-05-03tools headers: Synchronize prctl.h ABI headerSebastian Andrzej Siewior
Synchronize prctl.h with current uapi version after adding PR_FUTEX_HASH. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250416162921.513656-19-bigeasy@linutronix.de
2025-05-02selftests/bpf: Cleanup bpf qdisc selftestsAmery Hung
Some cleanups: - Remove unnecessary kfuncs declaration - Use _ns in the test name to run tests in a separate net namespace - Call skeleton __attach() instead of bpf_map__attach_struct_ops() to simplify tests. Signed-off-by: Amery Hung <ameryhung@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02selftests/bpf: Test attaching a bpf qdisc with incomplete operatorsAmery Hung
Implement .destroy in bpf_fq and bpf_fifo as it is now mandatory. Test attaching a bpf qdisc with a missing operator .init. This is not allowed as bpf qdisc qdisc_watchdog_cancel() could have been called with an uninitialized timer. Signed-off-by: Amery Hung <ameryhung@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02selftests/bpf: Test setting and creating bpf qdisc as default qdiscAmery Hung
First, test that bpf qdisc can be set as default qdisc. Then, attach an mq qdisc to see if bpf qdisc can be successfully created and grafted. The test is a sequential test as net.core.default_qdisc is global. Signed-off-by: Amery Hung <ameryhung@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02KVM: selftests: Add a basic SEV-SNP smoke testPratik R. Sampat
Extend sev_smoke_test to also run a minimal SEV-SNP smoke test that initializes and sets up private memory regions required to run a simple SEV-SNP guest. Similar to its SEV-ES smoke test counterpart, this also does not support GHCB and ucall yet and uses the GHCB MSR protocol to trigger an exit of the type KVM_EXIT_SYSTEM_EVENT. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-11-prsampat@amd.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Decouple SEV policy from VM typePratik R. Sampat
In preparation for SNP, cleanup the smoke test to decouple deriving type from policy. This will allow reusing the existing interfaces for SNP. No functional change intended. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-10-prsampat@amd.com [sean: massage shortlog+changelog] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Force GUEST_MEMFD flag for SNP VM typePratik R. Sampat
Force the SEV-SNP VM type to set the KVM_MEM_GUEST_MEMFD flag for the creation of private memslots. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-9-prsampat@amd.com [sean: add a comment, don't break non-x86] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02cpupower: change binding's makefile to use -lcpupowerJohn B. Wyatt IV
Originally I believed I needed the .o files to make the bindings. The linking failed due to a missing .so link in Fedora or by using make install-lib from the cpupower directory. Amend the makefile and the README. Big thanks to Wander Lairson Costa <wander@redhat.com> for the help. Link: https://lore.kernel.org/r/20250429204711.127274-1-jwyatt@redhat.com Signed-off-by: "John B. Wyatt IV" <jwyatt@redhat.com> Signed-off-by: "John B. Wyatt IV" <sageofredondo@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-05-02cpupower: add a systemd service to run cpupowerFrancesco Poli (wintermute)
One of the most typical use cases of the 'cpupower' utility works as follows: run 'cpupower' at boot with the desired command-line options and then forget about it. Add a systemd service (disabled by default) that automates this use case (for environments where the initialization system is 'systemd'), by running 'cpupower' at boot with the settings read from a default configuration file. The systemd service, the associated support script and the corresponding default configuration file are derived from what is provided by the Arch Linux package (under "GPL-2.0-or-later" terms), modernized and enhanced in various ways (the script has also been checked with 'shellcheck'). Link: https://gitlab.archlinux.org/archlinux/packaging/packages/linux-tools/-/tree/dd2e2a311e05413d0d87a0346ffce8c7e98d6d2b Signed-off-by: Francesco Poli (wintermute) <invernomuto@paranoici.org> Reviewed-by: John B. Wyatt IV <jwyatt@redhat.com> Reviewed-by: John B. Wyatt IV <sageofredondo@gmail.com> Tested-by: John B. Wyatt IV <jwyatt@redhat.com> Tested-by: John B. Wyatt IV <sageofredondo@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-05-02KVM: selftests: Add library support for interacting with SNPPratik R. Sampat
Extend the SEV library to include support for SNP ioctl() wrappers, which aid in launching and interacting with a SEV-SNP guest. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-8-prsampat@amd.com [sean: use BIT()] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Introduce SEV VM type checkPratik R. Sampat
In preparation for SNP, declutter the vm type check by introducing a SEV-SNP VM type check as well as a transitive set of helper functions. The SNP VM type is the subset of SEV-ES. Similarly, the SEV-ES and SNP types are subset of the SEV VM type check. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-7-prsampat@amd.com [sean: make the helpers static inlines] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Replace assert() with TEST_ASSERT_EQ()Pratik R. Sampat
For SEV tests, assert() failures on VM type or fd do not provide sufficient error reporting. Replace assert() with TEST_ASSERT_EQ() to obtain more detailed information on the assertion condition failure, including the call stack. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-6-prsampat@amd.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Add SMT control state helperPratik R. Sampat
Move the SMT control check out of the hyperv_cpuid selftest so that it is generally accessible all KVM selftests. Split the functionality into a helper that populates a buffer with SMT control value which other helpers can use to ascertain if SMT state is available and active. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-5-prsampat@amd.com [sean: prepend is_ to the helpers] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Add vmgexit helperPratik R. Sampat
Abstract rep vmmcall coded into the vmgexit helper for the sev library. No functional change intended. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-4-prsampat@amd.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: SEV-SNP test for KVM_SEV_INIT2Pratik R. Sampat
Add the X86_FEATURE_SEV_SNP CPU feature to the architectural definition for the SEV-SNP VM type to exercise the KVM_SEV_INIT2 call. Ensure that the SNP test is skipped in scenarios where CPUID supports it but KVM does not, preventing reporting of failure in such cases. Reviewed-by: Nikunj A Dadhania <nikunj@amd.com> Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-3-prsampat@amd.com [sean: use the same pattern as SEV and SEV-ES] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02selftests/bpf: Add tests for bucket resume logic in UDP socket iteratorsJordan Rife
Introduce a set of tests that exercise various bucket resume scenarios: * remove_seen resumes iteration after removing a socket from the bucket that we've already processed. Before, with the offset-based approach, this test would have skipped an unseen socket after resuming iteration. With the cookie-based approach, we now see all sockets exactly once. * remove_unseen exercises the condition where the next socket that we would have seen is removed from the bucket before we resume iteration. This tests the scenario where we need to scan past the first cookie in our remembered cookies list to find the socket from which to resume iteration. * remove_all exercises the condition where all sockets we remembered were removed from the bucket to make sure iteration terminates and returns no more results. * add_some exercises the condition where a few, but not enough to trigger a realloc, sockets are added to the head of the current bucket between reads. Before, with the offset-based approach, this test would have repeated sockets we've already seen. With the cookie-based approach, we now see all sockets exactly once. * force_realloc exercises the condition that we need to realloc the batch on a subsequent read, since more sockets than can be held in the current batch array were added to the current bucket. This exercies the logic inside bpf_iter_udp_realloc_batch that copies cookies into the new batch to make sure nothing is skipped or repeated. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02selftests/bpf: Return socket cookies from sock_iter_batch progsJordan Rife
Extend the iter_udp_soreuse and iter_tcp_soreuse programs to write the cookie of the current socket, so that we can track the identity of the sockets that the iterator has seen so far. Update the existing do_test function to account for this change to the iterator program output. At the same time, teach both programs to work with AF_INET as well. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02perf symbol-minimal: Fix double free in filename__read_build_idIan Rogers
Running the "perf script task-analyzer tests" with address sanitizer showed a double free: ``` FAIL: "test_csv_extended_times" Error message: "Failed to find required string:'Out-Out;'." ================================================================= ==19190==ERROR: AddressSanitizer: attempting double-free on 0x50b000017b10 in thread T0: #0 0x55da9601c78a in free (perf+0x26078a) (BuildId: e7ef50e08970f017a96fde6101c5e2491acc674a) #1 0x55da96640c63 in filename__read_build_id tools/perf/util/symbol-minimal.c:221:2 0x50b000017b10 is located 0 bytes inside of 112-byte region [0x50b000017b10,0x50b000017b80) freed by thread T0 here: #0 0x55da9601ce40 in realloc (perf+0x260e40) (BuildId: e7ef50e08970f017a96fde6101c5e2491acc674a) #1 0x55da96640ad6 in filename__read_build_id tools/perf/util/symbol-minimal.c:204:10 previously allocated by thread T0 here: #0 0x55da9601ca23 in malloc (perf+0x260a23) (BuildId: e7ef50e08970f017a96fde6101c5e2491acc674a) #1 0x55da966407e7 in filename__read_build_id tools/perf/util/symbol-minimal.c:181:9 SUMMARY: AddressSanitizer: double-free (perf+0x26078a) (BuildId: e7ef50e08970f017a96fde6101c5e2491acc674a) in free ==19190==ABORTING FAIL: "invocation of perf script report task-analyzer --csv-summary csvsummary --summary-extended command failed" Error message: "" FAIL: "test_csvsummary_extended" Error message: "Failed to find required string:'Out-Out;'." ---- end(-1) ---- 132: perf script task-analyzer tests : FAILED! ``` The buf_size if always set to phdr->p_filesz, but that may be 0 causing a free and realloc to return NULL. This is treated in filename__read_build_id like a failure and the buffer is freed again. To avoid this problem only grow buf, meaning the buf_size will never be 0. This also reduces the number of memory (re)allocations. Fixes: b691f64360ecec49 ("perf symbols: Implement poor man's ELF parser") Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20250501070003.22251-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-05-02perf mem: Add 'dtlb' output fieldNamhyung Kim
This is a breakdown of perf_mem_data_src.mem_dtlb values. It assumes PMU drivers would set PERF_MEM_TLB_HIT bit with an appropriate level. And having PERF_MEM_TLB_MISS means that it failed to find one in any levels of TLB. For now, it doesn't use PERF_MEM_TLB_{WK,OS} bits. Also it seems Intel machines don't distinguish L1 or L2 precisely. So I added ANY_HIT (printed as "L?-Hit") to handle the case. $ perf mem report -F overhead,dtlb,dso --stdio ... # --- D-TLB ---- # Overhead L?-Hit Miss Shared Object # ........ .............. ................. # 67.03% 99.5% 0.5% [unknown] 31.23% 99.2% 0.8% [kernel.kallsyms] 1.08% 97.8% 2.2% [i915] 0.36% 100.0% 0.0% [JIT] tid 6853 0.12% 100.0% 0.0% [drm] 0.05% 100.0% 0.0% [drm_kms_helper] 0.05% 100.0% 0.0% [ext4] 0.02% 100.0% 0.0% [aesni_intel] 0.02% 100.0% 0.0% [crc32c_intel] 0.02% 100.0% 0.0% [dm_crypt] ... Committer testing: # perf report --header | grep cpudesc # cpudesc : AMD Ryzen 9 9950X3D 16-Core Processor # perf mem report -F overhead,dtlb,dso --stdio | head -20 # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 2K of event 'cycles:P' # Total weight : 2637 # Sort order : local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked,blocked,local_ins_lat,local_p_stage_cyc # # ---------- D-TLB ----------- # Overhead L1-Hit L2-Hit Miss Other Shared Object # ........ ............................ ................................. # 77.47% 18.4% 0.1% 0.6% 80.9% [kernel.kallsyms] 5.61% 36.5% 0.7% 1.4% 61.5% libxul.so 2.77% 39.7% 0.0% 12.3% 47.9% libc.so.6 2.01% 34.0% 1.9% 1.9% 62.3% libglib-2.0.so.0.8400.1 1.93% 31.4% 2.0% 2.0% 64.7% [amdgpu] 1.63% 48.8% 0.0% 0.0% 51.2% [JIT] tid 60168 1.14% 3.3% 0.0% 0.0% 96.7% [vdso] # Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Link: https://lore.kernel.org/r/20250430205548.789750-12-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-05-02perf mem: Add 'snoop' output fieldNamhyung Kim
This is a breakdown of perf_mem_data_src.mem_snoop values. For now, it doesn't use mem_snoopx values like FWD and PEER. $ perf mem report -F overhead,snoop,comm --stdio ... # ---------- Snoop ----------- # Overhead Hit HitM Miss Other Command # ........ ............................ ............... # 34.24% 0.6% 0.0% 0.0% 99.4% gnome-shell 12.02% 1.0% 0.0% 0.0% 99.0% chrome 9.32% 1.0% 0.0% 0.3% 98.7% Isolated Web Co 6.85% 1.0% 0.3% 0.0% 98.6% swapper 6.30% 0.8% 0.8% 0.0% 98.5% Xorg 3.02% 2.4% 0.0% 0.0% 97.6% VizCompositorTh 2.35% 0.0% 0.0% 0.0% 100.0% firefox-esr 2.04% 0.0% 0.0% 0.0% 100.0% JS Helper 1.51% 3.2% 0.0% 0.0% 96.8% threaded-ml 1.44% 0.0% 0.0% 0.0% 100.0% AudioIP~allback ... Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Link: https://lore.kernel.org/r/20250430205548.789750-11-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-05-02perf mem: Add 'cache' and 'memory' output fieldsNamhyung Kim
This is a breakdown of perf_mem_data_src.mem_lvl_num. But it's also divided into two parts because the combination is bigger than 8. Since there are many entries for different cache levels, 'cache' field focuses on them. I generalized buffers like LFB, MAB and MHB to L1-buf and L2-buf. The rest goes to 'memory' field which can be RAM, CXL, PMEM, IO, etc. $ perf mem report -F cache,mem,dso --stdio ... # # -------------- Cache -------------- --- Memory --- # L1 L2 L3 L1-buf Other RAM Other Shared Object # ................................... .............. .................................... # 53.9% 3.6% 16.2% 21.6% 4.8% 4.8% 95.2% [kernel.kallsyms] 64.7% 1.7% 3.5% 17.4% 12.8% 12.8% 87.2% chrome (deleted) 78.3% 2.8% 0.0% 1.0% 17.9% 17.9% 82.1% libc.so.6 39.6% 1.5% 0.0% 5.7% 53.2% 53.2% 46.8% libxul.so 26.2% 0.0% 0.0% 0.0% 73.8% 73.8% 26.2% [unknown] 85.5% 0.0% 0.0% 14.5% 0.0% 0.0% 100.0% libspa-audioconvert.so 66.3% 4.4% 0.0% 29.4% 0.0% 0.0% 100.0% libglib-2.0.so.0.8200.1 (deleted) 1.9% 0.0% 0.0% 0.0% 98.1% 98.1% 1.9% libmutter-cogl-15.so.0.0.0 (deleted) 10.6% 0.0% 0.0% 89.4% 0.0% 0.0% 100.0% libpulsecommon-16.1.so 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 100.0% libfreeblpriv3.so (deleted) ... Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Link: https://lore.kernel.org/r/20250430205548.789750-10-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-05-02perf hist: Hide unused mem stat columnsNamhyung Kim
Some mem_stat types don't use all 8 columns. And there are cases only samples in certain kinds of mem_stat types are available only. For that case hide columns which has no samples. The new output for the previous data would be: $ perf mem report -F overhead,op,comm --stdio ... # ------ Mem Op ------- # Overhead Load Store Other Command # ........ ..................... ............... # 44.85% 21.1% 30.7% 48.3% swapper 26.82% 98.8% 0.3% 0.9% netsli-prober 7.19% 51.7% 13.7% 34.6% perf 5.81% 89.7% 2.2% 8.1% qemu-system-ppc 4.77% 100.0% 0.0% 0.0% notifications_c 1.77% 95.9% 1.2% 3.0% MemoryReleaser 0.77% 71.6% 4.1% 24.3% DefaultEventMan 0.19% 66.7% 22.2% 11.1% gnome-shell ... On Intel machines, the event is only for loads or stores so it'll have only one column: # Mem Op # Overhead Load Command # ........ ....... ............... # 20.55% 100.0% swapper 17.13% 100.0% chrome 9.02% 100.0% data-loop.0 6.26% 100.0% pipewire-pulse 5.63% 100.0% threaded-ml 5.47% 100.0% GraphRunner 5.37% 100.0% AudioIP~allback 5.30% 100.0% Chrome_ChildIOT 3.17% 100.0% Isolated Web Co ... Committer testing: # grep "model name" -m1 /proc/cpuinfo model name : AMD Ryzen 9 9950X3D 16-Core Processo # perf mem report -F overhead,op,comm --stdio # Total Lost Samples: 0 # # Samples: 2K of event 'cycles:P' # Total weight : 2637 # Sort order : local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked,blocked,local_ins_lat,local_p_stage_cyc # # ------ Mem Op ------- # Overhead Load Store Other Command # ........ ..................... ............... # 61.02% 14.4% 25.5% 60.1% swapper 5.61% 26.4% 13.5% 60.1% Isolated Web Co 5.50% 21.4% 29.7% 49.0% perf 4.74% 27.2% 15.2% 57.6% gnome-shell 4.63% 33.6% 11.5% 54.9% mdns_service 4.29% 28.3% 12.4% 59.3% ptyxis 2.16% 24.6% 19.3% 56.1% DOM Worker 0.99% 23.1% 34.6% 42.3% firefox 0.72% 26.3% 15.8% 57.9% IPC I/O Parent 0.61% 12.5% 12.5% 75.0% kworker/u130:20 0.61% 37.5% 18.8% 43.8% podman 0.57% 33.3% 6.7% 60.0% Timer 0.53% 14.3% 7.1% 78.6% KMS thread 0.49% 30.8% 7.7% 61.5% kworker/u130:3- 0.46% 41.7% 33.3% 25.0% IPDL Background Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Link: https://lore.kernel.org/r/20250430205548.789750-9-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-05-02perf mem: Add 'op' output fieldNamhyung Kim
This is an actual example of the he_mem_stat based sample breakdown. It uses 'mem_op' field of union perf_mem_data_src which means memory operations. It'd have basically 'load' or 'store' which can be useful if PMU doesn't have separate events for them like IBS or SPE. In addition, there's an entry in case load and store happen at the same time. Also adds entries for prefetching and execution. $ perf mem report -F +op -s comm --stdio # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 4K of event 'ibs_op//' # Total weight : 9559 # Sort order : comm # # --------------------- Mem Op ---------------------- # Overhead Samples Load Store Ld+St Pfetch Exec Other N/A N/A Command # ........ ....... ................................................... ............... # 44.85% 4077 21.1% 30.7% 0.0% 0.0% 0.0% 48.3% 0.0% 0.0% swapper 26.82% 45 98.8% 0.3% 0.0% 0.0% 0.0% 0.9% 0.0% 0.0% netsli-prober 7.19% 442 51.7% 13.7% 0.0% 0.0% 0.0% 34.6% 0.0% 0.0% perf 5.81% 75 89.7% 2.2% 0.0% 0.0% 0.0% 8.1% 0.0% 0.0% qemu-system-ppc 4.77% 1 100.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% notifications_c 1.77% 10 95.9% 1.2% 0.0% 0.0% 0.0% 3.0% 0.0% 0.0% MemoryReleaser 0.77% 32 71.6% 4.1% 0.0% 0.0% 0.0% 24.3% 0.0% 0.0% DefaultEventMan 0.19% 10 66.7% 22.2% 0.0% 0.0% 0.0% 11.1% 0.0% 0.0% gnome-shell Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Link: https://lore.kernel.org/r/20250430205548.789750-8-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-05-02perf hist: Implement output fields for mem statsNamhyung Kim
This is a preparation for later changes to support mem_stat output. The new fields will need two lines for the header - the first line will show type of mem stat and the second line will show the name of each item which is returned by mem_stat_name(). Each element in the mem_stat array will be printed in percentage for the hist_entry and their sum would be 100%. Add new output field dimension only for SORT_MODE__MEM using mem_stat. To handle possible name conflict with existing sort keys, move the order of checking output field dimensions after the sort dimensions when it looks for sort keys. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Link: https://lore.kernel.org/r/20250430205548.789750-7-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
generated by cgit (git 2.34.1) at 2025-07-16 05:25:32 +0000