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2023-08-02selftests: router_bridge_vlan_upper: Add a new selftestPetr Machata2-0/+170
Add a selftest that verifies routing through VLAN bridge uppers. Signed-off-by: Petr Machata <[email protected]> Reviewed-by: Danielle Ratson <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2023-08-02selftests: router_bridge_1d: Add a new selftestPetr Machata2-0/+186
Add a selftest to verify that routing through a 1d bridge works when VLAN upper of a physical port is used instead of a physical port. Also verify that when a port is attached to an already-configured bridge, the configuration is applied. Signed-off-by: Petr Machata <[email protected]> Reviewed-by: Danielle Ratson <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2023-08-02selftests: router_bridge: Add remastering testsPetr Machata1-0/+26
Add two tests to deslave a port from and reenslave to a bridge. This should retain the ability of the system to forward traffic, but on an offloading driver that is sensitive to ordering of operations, it might not. The first test does this configuration in a way that relies on vlan_default_pvid to assign the PVID. The second test disables that autoconfiguration and configures PVID by hand in a separate step. Signed-off-by: Petr Machata <[email protected]> Reviewed-by: Danielle Ratson <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2023-08-01selftest: net: Assert on a proper value in so_incoming_cpu.c.Kuniyuki Iwashima1-1/+1
Dan Carpenter reported an error spotted by Smatch. ./tools/testing/selftests/net/so_incoming_cpu.c:163 create_clients() error: uninitialized symbol 'ret'. The returned value of sched_setaffinity() should be checked with ASSERT_EQ(), but the value was not saved in a proper variable, resulting in an error above. Let's save the returned value of with sched_setaffinity(). Fixes: 6df96146b202 ("selftest: Add test for SO_INCOMING_CPU.") Reported-by: Dan Carpenter <[email protected]> Closes: https://lore.kernel.org/linux-kselftest/[email protected]/ Signed-off-by: Kuniyuki Iwashima <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-08-01Merge tag 'linux-cpupower-6.6-rc1' of ↵Rafael J. Wysocki7-13/+146
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux Merge cpupower utility update for 6.6-rc1 from Shuah Khan: "This cpupower update for Linux 6.6-rc1 consists of 2 fixes and enhancements to add support for amd-pstate active mode driver, amd_pstate mode change, EPP value change, turbo-boost support, and is_valid_path API." * tag 'linux-cpupower-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: cpupower: Fix cpuidle_set to accept only numeric values for idle-set operation. cpupower: Add turbo-boost support in cpupower cpupower: Add support for amd_pstate mode change cpupower: Add EPP value change support cpupower: Add is_valid_path API cpupower: Recognise amd-pstate active mode driver cpupower: Bump soname version
2023-08-01perf test parse-events: Test complex name has required event formatIan Rogers3-1/+23
test__checkevent_complex_name will use an "event" format which if not present, such as with a placeholder PMU, will cause test failures. Skip the test in this case to avoid failures in restricted environments. Add perf_pmu__has_format utility as a general PMU utility. Fixes: 628eaa4e877af823 ("perf pmus: Add placeholder core PMU") Signed-off-by: Ian Rogers <[email protected]> Tested-by: Thomas Richter <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Rob Herring <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-08-01perf pmus: Create placholder regardless of scanning core_onlyIan Rogers1-9/+7
If scanning all PMUs the placeholder is still necessary if no core PMU is found. This situation occurs in perf test's parse-events test, when uncore events appear before core. Fixes: 628eaa4e877af823 ("perf pmus: Add placeholder core PMU") Signed-off-by: Ian Rogers <[email protected]> Tested-by: Thomas Richter <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Rob Herring <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-31selftests: mptcp: userspace_pm: unmute unexpected errorsMatthieu Baerts1-50/+50
All pm_nl_ctl commands were muted. If there was an unexpected error with one of them, this was simply not visible in the logs, making the analysis very hard. It could also hide misuse of commands by mistake. Now the output is only muted when we do expect to have an error, e.g. when giving invalid arguments on purpose. Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Matthieu Baerts <[email protected]> Link: https://lore.kernel.org/r/20230730-upstream-net-next-20230728-mptcp-selftests-misc-v1-4-7e9cc530a9cd@tessares.net Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-31selftests: mptcp: pm_nl_ctl: always look for errorsMatthieu Baerts3-15/+26
If a Netlink command for the MPTCP path-managers is not valid, it is important to check if there are errors. If yes, they need to be reported instead of being ignored and exiting without errors. Now if no replies are expected, an ACK from the kernelspace is asked by the userspace in order to always expect a reply. We can use the same buffer that is currently always >1024 bytes. Then we can check if there is an error (err->error), print it if any and report the error. After this modification, it is required to mute expected errors in mptcp_join.sh and pm_netlink.sh selftests: - when trying to add a bad endpoint, e.g. duplicated - when trying to set the two limits above the hard limit Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Matthieu Baerts <[email protected]> Link: https://lore.kernel.org/r/20230730-upstream-net-next-20230728-mptcp-selftests-misc-v1-3-7e9cc530a9cd@tessares.net Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-31selftests: mptcp: join: colored resultsMatthieu Baerts2-4/+43
Thanks to the parent commit, it is easy to change the output and add some colours to help spotting issues. The colours are not used if stdout is redirected or if NO_COLOR env var is set to 1 as specified in https://no-color.org. It is possible to force displaying the colours even if stdout is redirected by setting this env var: SELFTESTS_MPTCP_LIB_COLOR_FORCE=1 Acked-by: Paolo Abeni <[email protected]> Signed-off-by: Matthieu Baerts <[email protected]> Link: https://lore.kernel.org/r/20230730-upstream-net-next-20230728-mptcp-selftests-misc-v1-2-7e9cc530a9cd@tessares.net Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-31selftests: mptcp: join: rework detailed reportMatthieu Baerts1-236/+214
This patch modifies how the detailed results are printed, mainly to improve what is displayed in case of issue: - Now the test name (title) is printed earlier, when starting the test if it is not intentionally skipped: by doing that, errors linked to a test will be printed after having written the test name and then avoid confusions. - Due to the previous item, it is required to add a new line after having printed the test name because in case of error with a command, it is better not to have the output in the middle of the screen. - Each check is printed on a dedicated line with aligned status (ok, skip, fail): it is easier to spot which one has failed, simpler to manage in the code not having to deal with alignment case by case and helpers can be used to uniform what is done. These helpers can also be useful later to do more actions depending on the results or change in one place what is printed. - Info messages have been reduced and aligned as well. And info messages about the creation of the default test files of 1 KB are no longer printed. Example: 001 no JOIN syn [ ok ] synack [ ok ] ack [ ok ] Or with a skip and a failure: 001 no JOIN syn [ ok ] synack [fail] got 42 JOIN[s] synack expected 0 Server ns stats (...) Client ns stats (...) ack [skip] Or with info: 104 Infinite map Test file (size 128 KB) for client Test file (size 128 KB) for server file received by server has inverted byte at 169 5 corrupted pkts syn [ ok ] synack [ ok ] While at it, verify_listener_events() now also print more info in case of failure and in pm_nl_check_endpoint(), the test is marked as failed instead of skipped if no ID has been given (internal selftest issue). Acked-by: Paolo Abeni <[email protected]> Signed-off-by: Matthieu Baerts <[email protected]> Link: https://lore.kernel.org/r/20230730-upstream-net-next-20230728-mptcp-selftests-misc-v1-1-7e9cc530a9cd@tessares.net Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-31selftests: connector: Fix input argument error paths to skipShuah Khan1-2/+2
Fix input argument parsing paths to skip from their error legs. This fix helps to avoid false test failure reports without running the test. Signed-off-by: Shuah Khan <[email protected]> Reviewed-by: Anjali Kulkarni <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-31selftests: connector: Add .gitignore and poupulate it with testShuah Khan1-0/+1
Add gitignore and poupulate it with test name - proc_filter Signed-off-by: Shuah Khan <[email protected]> Link: https://lore.kernel.org/r/e3d04cc34e9af07909dc882b50fb1b6f1ce7705b.1690564372.git.skhan@linuxfoundation.org Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-31selftests: connector: Fix Makefile to include KHDR_INCLUDESShuah Khan1-1/+1
The test compile fails with following errors. Fix the Makefile CFLAGS to include KHDR_INCLUDES to pull in uapi defines. gcc -Wall proc_filter.c -o ../tools/testing/selftests/connector/proc_filter proc_filter.c: In function ‘send_message’: proc_filter.c:22:33: error: invalid application of ‘sizeof’ to incomplete type ‘struct proc_input’ 22 | sizeof(struct proc_input)) | ^~~~~~ proc_filter.c:42:19: note: in expansion of macro ‘NL_MESSAGE_SIZE’ 42 | char buff[NL_MESSAGE_SIZE]; | ^~~~~~~~~~~~~~~ proc_filter.c:22:33: error: invalid application of ‘sizeof’ to incomplete type ‘struct proc_input’ 22 | sizeof(struct proc_input)) | ^~~~~~ proc_filter.c:48:34: note: in expansion of macro ‘NL_MESSAGE_SIZE’ 48 | hdr->nlmsg_len = NL_MESSAGE_SIZE; | ^~~~~~~~~~~~~~~ ` Reported-by: Naresh Kamboju <[email protected]> Link: https://lore.kernel.org/all/CA+G9fYt=6ysz636XcQ=-KJp7vJcMZ=NjbQBrn77v7vnTcfP2cA@mail.gmail.com/ Signed-off-by: Shuah Khan <[email protected]> Link: https://lore.kernel.org/r/d0055c8cdf18516db8ba9edec99cfc5c08f32a7c.1690564372.git.skhan@linuxfoundation.org Signed-off-by: Jakub Kicinski <[email protected]>
2023-07-31test: ftrace: Fix kprobe test for eventfsAjay Kaher2-4/+14
kprobe_args_char.tc, kprobe_args_string.tc has validation check for tracefs_create_dir, for eventfs it should be eventfs_create_dir. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ajay Kaher <[email protected]> Co-developed-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]> Tested-by: Ching-lin Yu <[email protected]> Acked-by: Masami Hiramatsu (Google) <[email protected]> Signed-off-by: Steven Rostedt (Google) <[email protected]>
2023-07-31net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX.Kuniyuki Iwashima1-0/+25
syzkaller found zero division error [0] in div_s64_rem() called from get_cycle_time_elapsed(), where sched->cycle_time is the divisor. We have tests in parse_taprio_schedule() so that cycle_time will never be 0, and actually cycle_time is not 0 in get_cycle_time_elapsed(). The problem is that the types of divisor are different; cycle_time is s64, but the argument of div_s64_rem() is s32. syzkaller fed this input and 0x100000000 is cast to s32 to be 0. @TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME={0xc, 0x8, 0x100000000} We use s64 for cycle_time to cast it to ktime_t, so let's keep it and set max for cycle_time. While at it, we prevent overflow in setup_txtime() and add another test in parse_taprio_schedule() to check if cycle_time overflows. Also, we add a new tdc test case for this issue. [0]: divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 103 Comm: kworker/1:3 Not tainted 6.5.0-rc1-00330-g60cc1f7d0605 #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:div_s64_rem include/linux/math64.h:42 [inline] RIP: 0010:get_cycle_time_elapsed net/sched/sch_taprio.c:223 [inline] RIP: 0010:find_entry_to_transmit+0x252/0x7e0 net/sched/sch_taprio.c:344 Code: 3c 02 00 0f 85 5e 05 00 00 48 8b 4c 24 08 4d 8b bd 40 01 00 00 48 8b 7c 24 48 48 89 c8 4c 29 f8 48 63 f7 48 99 48 89 74 24 70 <48> f7 fe 48 29 d1 48 8d 04 0f 49 89 cc 48 89 44 24 20 49 8d 85 10 RSP: 0018:ffffc90000acf260 EFLAGS: 00010206 RAX: 177450e0347560cf RBX: 0000000000000000 RCX: 177450e0347560cf RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000100000000 RBP: 0000000000000056 R08: 0000000000000000 R09: ffffed10020a0934 R10: ffff8880105049a7 R11: ffff88806cf3a520 R12: ffff888010504800 R13: ffff88800c00d800 R14: ffff8880105049a0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0edf84f0e8 CR3: 000000000d73c002 CR4: 0000000000770ee0 PKRU: 55555554 Call Trace: <TASK> get_packet_txtime net/sched/sch_taprio.c:508 [inline] taprio_enqueue_one+0x900/0xff0 net/sched/sch_taprio.c:577 taprio_enqueue+0x378/0xae0 net/sched/sch_taprio.c:658 dev_qdisc_enqueue+0x46/0x170 net/core/dev.c:3732 __dev_xmit_skb net/core/dev.c:3821 [inline] __dev_queue_xmit+0x1b2f/0x3000 net/core/dev.c:4169 dev_queue_xmit include/linux/netdevice.h:3088 [inline] neigh_resolve_output net/core/neighbour.c:1552 [inline] neigh_resolve_output+0x4a7/0x780 net/core/neighbour.c:1532 neigh_output include/net/neighbour.h:544 [inline] ip6_finish_output2+0x924/0x17d0 net/ipv6/ip6_output.c:135 __ip6_finish_output+0x620/0xaa0 net/ipv6/ip6_output.c:196 ip6_finish_output net/ipv6/ip6_output.c:207 [inline] NF_HOOK_COND include/linux/netfilter.h:292 [inline] ip6_output+0x206/0x410 net/ipv6/ip6_output.c:228 dst_output include/net/dst.h:458 [inline] NF_HOOK.constprop.0+0xea/0x260 include/linux/netfilter.h:303 ndisc_send_skb+0x872/0xe80 net/ipv6/ndisc.c:508 ndisc_send_ns+0xb5/0x130 net/ipv6/ndisc.c:666 addrconf_dad_work+0xc14/0x13f0 net/ipv6/addrconf.c:4175 process_one_work+0x92c/0x13a0 kernel/workqueue.c:2597 worker_thread+0x60f/0x1240 kernel/workqueue.c:2748 kthread+0x2fe/0x3f0 kernel/kthread.c:389 ret_from_fork+0x2c/0x50 arch/x86/entry/entry_64.S:308 </TASK> Modules linked in: Fixes: 4cfd5779bd6e ("taprio: Add support for txtime-assist mode") Reported-by: syzkaller <[email protected]> Signed-off-by: Kuniyuki Iwashima <[email protected]> Co-developed-by: Eric Dumazet <[email protected]> Co-developed-by: Pedro Tammela <[email protected]> Acked-by: Vinicius Costa Gomes <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2023-07-30ASoC: Merge up fixes from Linus' treeMark Brown8-78/+120
Gets us pine64plus back if nothing else.
2023-07-30regmap: Merge up fixes from Linus' treeMark Brown8-78/+120
Gets us pine64plus back if nothing else.
2023-07-30Merge tag 'probes-fixes-v6.5-rc3' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probe fixes from Masami Hiramatsu: - probe-events: add NULL check for some BTF API calls which can return error code and NULL. - ftrace selftests: check fprobe and kprobe event correctly. This fixes a miss condition of the test command. - kprobes: do not allow probing functions that start with "__cfi_" or "__pfx_" since those are auto generated for kernel CFI and not executed. * tag 'probes-fixes-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: kprobes: Prohibit probing on CFI preamble symbol selftests/ftrace: Fix to check fprobe event eneblement tracing/probes: Fix to add NULL check for BTF APIs
2023-07-30Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds4-62/+110
Pull kvm fixes from Paolo Bonzini: "x86: - Do not register IRQ bypass consumer if posted interrupts not supported - Fix missed device interrupt due to non-atomic update of IRR - Use GFP_KERNEL_ACCOUNT for pid_table in ipiv - Make VMREAD error path play nice with noinstr - x86: Acquire SRCU read lock when handling fastpath MSR writes - Support linking rseq tests statically against glibc 2.35+ - Fix reference count for stats file descriptors - Detect userspace setting invalid CR0 Non-KVM: - Remove coccinelle script that has caused multiple confusion ("debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage", acked by Greg)" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits) KVM: selftests: Expand x86's sregs test to cover illegal CR0 values KVM: VMX: Don't fudge CR0 and CR4 for restricted L2 guest KVM: x86: Disallow KVM_SET_SREGS{2} if incoming CR0 is invalid Revert "debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage" KVM: selftests: Verify stats fd is usable after VM fd has been closed KVM: selftests: Verify stats fd can be dup()'d and read KVM: selftests: Verify userspace can create "redundant" binary stats files KVM: selftests: Explicitly free vcpus array in binary stats test KVM: selftests: Clean up stats fd in common stats_test() helper KVM: selftests: Use pread() to read binary stats header KVM: Grab a reference to KVM for VM and vCPU stats file descriptors selftests/rseq: Play nice with binaries statically linked against glibc 2.35+ Revert "KVM: SVM: Skip WRMSR fastpath on VM-Exit if next RIP isn't valid" KVM: x86: Acquire SRCU read lock when handling fastpath MSR writes KVM: VMX: Use vmread_error() to report VM-Fail in "goto" path KVM: VMX: Make VMREAD error path play nice with noinstr KVM: x86/irq: Conditionally register IRQ bypass consumer again KVM: X86: Use GFP_KERNEL_ACCOUNT for pid_table in ipiv KVM: x86: check the kvm_cpu_get_interrupt result before using it KVM: x86: VMX: set irr_pending in kvm_apic_update_irr ...
2023-07-29KVM: selftests: Expand x86's sregs test to cover illegal CR0 valuesSean Christopherson1-31/+39
Add coverage to x86's set_sregs_test to verify KVM rejects vendor-agnostic illegal CR0 values, i.e. CR0 values whose legality doesn't depend on the current VMX mode. KVM historically has neglected to reject bad CR0s from userspace, i.e. would happily accept a completely bogus CR0 via KVM_SET_SREGS{2}. Punt VMX specific subtests to future work, as they would require quite a bit more effort, and KVM gets coverage for CR0 checks in general through other means, e.g. KVM-Unit-Tests. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Verify stats fd is usable after VM fd has been closedSean Christopherson1-2/+8
Verify that VM and vCPU binary stats files are usable even after userspace has put its last direct reference to the VM. This is a regression test for a UAF bug where KVM didn't gift the stats files a reference to the VM. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Verify stats fd can be dup()'d and readSean Christopherson1-1/+7
Expand the binary stats test to verify that a stats fd can be dup()'d and read, to (very) roughly simulate userspace passing around the file. Adding the dup() test is primarily an intermediate step towards verifying that userspace can read VM/vCPU stats before _and_ after userspace closes its copy of the VM fd; the dup() test itself is only mildly interesting. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Verify userspace can create "redundant" binary stats filesSean Christopherson1-2/+23
Verify that KVM doesn't artificially limit KVM_GET_STATS_FD to a single file per VM/vCPU. There's no known use case for getting multiple stats fds, but it should work, and more importantly creating multiple files will make it easier to test that KVM correct manages VM refcounts for stats files. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Explicitly free vcpus array in binary stats testSean Christopherson1-0/+1
Explicitly free the all-encompassing vcpus array in the binary stats test so that the test is consistent with respect to freeing all dynamically allocated resources (versus letting them be freed on exit). Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Clean up stats fd in common stats_test() helperSean Christopherson1-18/+4
Move the stats fd cleanup code into stats_test() and drop the superfluous vm_stats_test() and vcpu_stats_test() helpers in order to decouple creation of the stats file from consuming/testing the file (deduping code is a bonus). This will make it easier to test various edge cases related to stats, e.g. that userspace can dup() a stats fd, that userspace can have multiple stats files for a singleVM/vCPU, etc. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29KVM: selftests: Use pread() to read binary stats headerSean Christopherson2-4/+8
Use pread() with an explicit offset when reading the header and the header name for a binary stats fd so that the common helper and the binary stats test don't subtly rely on the file effectively being untouched, e.g. to allow multiple reads of the header, name, etc. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29selftests/rseq: Play nice with binaries statically linked against glibc 2.35+Sean Christopherson1-6/+22
To allow running rseq and KVM's rseq selftests as statically linked binaries, initialize the various "trampoline" pointers to point directly at the expect glibc symbols, and skip the dlysm() lookups if the rseq size is non-zero, i.e. the binary is statically linked *and* the libc registered its own rseq. Define weak versions of the symbols so as not to break linking against libc versions that don't support rseq in any capacity. The KVM selftests in particular are often statically linked so that they can be run on targets with very limited runtime environments, i.e. test machines. Fixes: 233e667e1ae3 ("selftests/rseq: Uplift rseq selftests for compatibility with glibc-2.35") Cc: Aaron Lewis <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2023-07-29tools: iio: iio_generic_buffer: Fix some integer type and calculationChenyuan Mi1-4/+13
In function size_from_channelarray(), the return value 'bytes' is defined as int type. However, the calcution of 'bytes' in this function is designed to use the unsigned int type. So it is necessary to change 'bytes' type to unsigned int to avoid integer overflow. The size_from_channelarray() is called in main() function, its return value is directly multipled by 'buf_len' and then used as the malloc() parameter. The 'buf_len' is completely controllable by user, thus a multiplication overflow may occur here. This could allocate an unexpected small area. Signed-off-by: Chenyuan Mi <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
2023-07-28bpf: selftests: Add defrag selftestsDaniel Xu5-2/+536
These selftests tests 2 major scenarios: the BPF based defragmentation can successfully be done and that packet pointers are invalidated after calls to the kfunc. The logic is similar for both ipv4 and ipv6. In the first scenario, we create a UDP client and UDP echo server. The the server side is fairly straightforward: we attach the prog and simply echo back the message. The on the client side, we send fragmented packets to and expect the reassembled message back from the server. Signed-off-by: Daniel Xu <[email protected]> Link: https://lore.kernel.org/r/33e40fdfddf43be93f2cb259303f132f46750953.1689970773.git.dxu@dxuuu.xyz Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-28bpf: selftests: Support custom type and proto for client socketsDaniel Xu2-6/+17
Extend connect_to_fd_opts() to take optional type and protocol parameters for the client socket. These parameters are useful when opening a raw socket to send IP fragments. Signed-off-by: Daniel Xu <[email protected]> Link: https://lore.kernel.org/r/9067db539efdfd608aa86a2b143c521337c111fc.1689970773.git.dxu@dxuuu.xyz Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-28bpf: selftests: Support not connecting client socketDaniel Xu2-2/+4
For connectionless protocols or raw sockets we do not want to actually connect() to the server. Signed-off-by: Daniel Xu <[email protected]> Link: https://lore.kernel.org/r/525c13d66dac2d640a1db922546842c051c6f2e6.1689970773.git.dxu@dxuuu.xyz Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-28netfilter: bpf: Support BPF_F_NETFILTER_IP_DEFRAG in netfilter linkDaniel Xu1-0/+5
This commit adds support for enabling IP defrag using pre-existing netfilter defrag support. Basically all the flag does is bump a refcnt while the link the active. Checks are also added to ensure the prog requesting defrag support is run _after_ netfilter defrag hooks. We also take care to avoid any issues w.r.t. module unloading -- while defrag is active on a link, the module is prevented from unloading. Signed-off-by: Daniel Xu <[email protected]> Reviewed-by: Florian Westphal <[email protected]> Link: https://lore.kernel.org/r/5cff26f97e55161b7d56b09ddcf5f8888a5add1d.1689970773.git.dxu@dxuuu.xyz Signed-off-by: Alexei Starovoitov <[email protected]>
2023-07-28KVM: SEV: Enable data breakpoints in SEV-ESAlexey Kardashevskiy1-0/+1
Add support for "DebugSwap for SEV-ES guests", which provides support for swapping DR[0-3] and DR[0-3]_ADDR_MASK on VMRUN and VMEXIT, i.e. allows KVM to expose debug capabilities to SEV-ES guests. Without DebugSwap support, the CPU doesn't save/load most _guest_ debug registers (except DR6/7), and KVM cannot manually context switch guest DRs due the VMSA being encrypted. Enable DebugSwap if and only if the CPU also supports NoNestedDataBp, which causes the CPU to ignore nested #DBs, i.e. #DBs that occur when vectoring a #DB. Without NoNestedDataBp, a malicious guest can DoS the host by putting the CPU into an infinite loop of vectoring #DBs (see https://bugzilla.redhat.com/show_bug.cgi?id=1278496) Set the features bit in sev_es_sync_vmsa() which is the last point when VMSA is not encrypted yet as sev_(es_)init_vmcb() (where the most init happens) is called not only when VCPU is initialised but also on intrahost migration when VMSA is encrypted. Eliminate DR7 intercepts as KVM can't modify guest DR7, and intercepting DR7 would completely defeat the purpose of enabling DebugSwap. Make X86_FEATURE_DEBUG_SWAP appear in /proc/cpuinfo (by not adding "") to let the operator know if the VM can debug. Signed-off-by: Alexey Kardashevskiy <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Sean Christopherson <[email protected]>
2023-07-28perf build: Add Wextra for C++ compilationIan Rogers2-1/+4
Commit d58ac0bf8d1e ("perf build: Add clang and llvm compile and linking support") added -Wall and -Wno-strict-aliasing for CXXFLAGS, but not -Wextra. -Wno-strict-aliasing is no longer necessary, adding -Wextra for CXXFLAGS requires adding -Wno-unused-parameter clang.cpp and clang-test.cpp for LIBCLANGLLVM=1 to build. Signed-off-by: Ian Rogers <[email protected]> Acked-by: James Clark <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Eduard Zingerman <[email protected]> Cc: Gaosheng Cui <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rob Herring <[email protected]> Cc: Tom Rix <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf build: Don't always set -funwind-tables and -ggdb3Ian Rogers1-4/+3
Commit 6a40cd90f5deb6de ("perf tools: Add libunwind dependency for DWARF CFI unwinding") added libunwind support but also -funwind-tables and -ggdb3 to the standard build. These build flags aren't necessary so remove, set -g when DEBUG is enabled for the build. Signed-off-by: Ian Rogers <[email protected]> Acked-by: James Clark <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Eduard Zingerman <[email protected]> Cc: Gaosheng Cui <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rob Herring <[email protected]> Cc: Tom Rix <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf bpf-loader: Remove unneeded diagnostic pragmaIan Rogers1-3/+0
Added during the progress to libbpf 1.0 the deprecated functions are no longer used and so the pragma can be removed. Signed-off-by: Ian Rogers <[email protected]> Acked-by: James Clark <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Eduard Zingerman <[email protected]> Cc: Gaosheng Cui <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rob Herring <[email protected]> Cc: Tom Rix <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf vendor events arm64: Add JSON metrics for Yitian 710 DDRJing Zhang1-0/+20
Add JSON metrics for T-HEAD Yitian 710 SoC DDR. Reviewed-by: John Garry <[email protected]> Signed-off-by: Jing Zhang <[email protected]> Acked-by: Ian Rogers <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Shuai Xue <[email protected]> Cc: Will Deacon <[email protected]> Cc: Zhuo Song <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf jevents: Add support for Yitian 710 DDR PMU (arm64) aliasingJing Zhang2-0/+374
Add alias support for T-HEAD Yitian 710 SoC DDR PMU events. Reviewed-by: John Garry <[email protected]> Reviewed-by: Shuai Xue <[email protected]> Signed-off-by: Jing Zhang <[email protected]> Acked-by: Ian Rogers <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Will Deacon <[email protected]> Cc: Zhuo Song <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf tools: Add a place to put kernel config fragments for test runsJames Clark3-0/+19
Defconfig doesn't give full coverage for a perf test run, so these can be merged with defconfig to do so. It's not complete yet, but is a starting point as a place to add to when a specific test needs something extra to run. Signed-off-by: James Clark <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: [email protected] Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Brown <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf scripts python: Add command execution for gecko scriptAnup Sharma2-0/+5
This will enable the execution of gecko.py script using record and report commands in 'perf script'. And this will be also reflected at "perf script -l" command. For Example: perf script record gecko perf script report gecko Committer notes: As discussed on the perf tools office hours, I made -F 99 the default for the record script and removed the double -- on the report script so that the existing 'perf script' protocol for the combined operation: # perf script gecko Works, i.e. the record script pipes its stdout into the stdin of the report script, basically: /bin/sh /usr/libexec/perf-core/scripts/python/bin/gecko-record -F 99 -g -a -q -o - | \ /bin/sh /usr/libexec/perf-core/scripts/python/bin/gecko-report -i - Testing it: The resulting JSON file needs to be uploaded to https://profiler.firefox.com, Anup already has code to start a local http server on the trace_begin handler of the gecko python script, start firefox and feed it the JSON. The example below only collects sample for the specified workload, so that we don't produce thousands of lines, to collect system wide samples, use instead: # perf script gecko -a sleep 0.5 # nohup perf script gecko sleep 0.5 { "meta": { "interval": 1, "processType": 0, "product": "x86_64 GNU/Linux", "stackwalk": 1, "debug": 0, "gcpoison": 0, "asyncstack": 1, "startTime": 274601692.636, "shutdownTime": null, "version": 24, "presymbolicated": true, "categories": [ { "name": "User", "color": "yellow", "subcategories": [ "Other" ] }, { "name": "Kernel", "color": "orange", "subcategories": [ "Other" ] } ], "markerSchema": [] }, "libs": [], "threads": [ { "tid": 3344498, "pid": 3344498, "name": "sleep", "markers": { "schema": { "name": 0, "startTime": 1, "endTime": 2, "phase": 3, "category": 4, "data": 5 }, "data": [] }, "samples": { "schema": { "stack": 0, "time": 1, "responsiveness": 2 }, "data": [ [ 21, 274601692.636, 0 ], [ 23, 274601692.641, 0 ], [ 29, 274601692.643, 0 ], [ 42, 274601692.648, 0 ] ] }, "frameTable": { "schema": { "location": 0, "relevantForJS": 1, "innerWindowID": 2, "implementation": 3, "optimizations": 4, "line": 5, "column": 6, "category": 7, "subcategory": 8 }, "data": [ [ 0, false, 0, null, null, null, null, 1, null ], [ 1, false, 0, null, null, null, null, 1, null ], [ 2, false, 0, null, null, null, null, 1, null ], [ 3, false, 0, null, null, null, null, 1, null ], [ 4, false, 0, null, null, null, null, 1, null ], [ 5, false, 0, null, null, null, null, 1, null ], [ 6, false, 0, null, null, null, null, 1, null ], [ 7, false, 0, null, null, null, null, 1, null ], [ 8, false, 0, null, null, null, null, 1, null ], [ 9, false, 0, null, null, null, null, 1, null ], [ 10, false, 0, null, null, null, null, 1, null ], [ 11, false, 0, null, null, null, null, 1, null ], [ 12, false, 0, null, null, null, null, 1, null ], [ 13, false, 0, null, null, null, null, 1, null ], [ 14, false, 0, null, null, null, null, 1, null ], [ 15, false, 0, null, null, null, null, 1, null ], [ 16, false, 0, null, null, null, null, 1, null ], [ 17, false, 0, null, null, null, null, 1, null ], [ 18, false, 0, null, null, null, null, 1, null ], [ 19, false, 0, null, null, null, null, 1, null ], [ 20, false, 0, null, null, null, null, 1, null ], [ 21, false, 0, null, null, null, null, 1, null ], [ 22, false, 0, null, null, null, null, 1, null ], [ 23, false, 0, null, null, null, null, 1, null ], [ 24, false, 0, null, null, null, null, 1, null ], [ 25, false, 0, null, null, null, null, 1, null ], [ 26, false, 0, null, null, null, null, 1, null ], [ 27, false, 0, null, null, null, null, 1, null ], [ 28, false, 0, null, null, null, null, 1, null ], [ 29, false, 0, null, null, null, null, 1, null ], [ 30, false, 0, null, null, null, null, 1, null ], [ 31, false, 0, null, null, null, null, 1, null ], [ 32, false, 0, null, null, null, null, 1, null ], [ 33, false, 0, null, null, null, null, 1, null ], [ 34, false, 0, null, null, null, null, 1, null ], [ 35, false, 0, null, null, null, null, 1, null ], [ 36, false, 0, null, null, null, null, 1, null ], [ 37, false, 0, null, null, null, null, 1, null ], [ 38, false, 0, null, null, null, null, 1, null ] ] }, "stackTable": { "schema": { "prefix": 0, "frame": 1 }, "data": [ [ null, 0 ], [ 0, 1 ], [ 1, 2 ], [ 2, 3 ], [ 3, 4 ], [ 4, 5 ], [ 5, 6 ], [ 6, 7 ], [ 7, 8 ], [ 8, 9 ], [ 9, 10 ], [ 10, 11 ], [ 11, 12 ], [ 12, 13 ], [ 13, 14 ], [ 14, 15 ], [ 15, 16 ], [ 16, 17 ], [ 17, 18 ], [ 18, 19 ], [ 19, 20 ], [ 20, 21 ], [ 20, 22 ], [ 22, 23 ], [ 11, 24 ], [ 24, 25 ], [ 25, 26 ], [ 26, 27 ], [ 27, 28 ], [ 28, 29 ], [ 9, 11 ], [ 30, 24 ], [ 31, 25 ], [ 32, 30 ], [ 33, 31 ], [ 34, 32 ], [ 35, 29 ], [ 36, 33 ], [ 37, 34 ], [ 38, 35 ], [ 39, 36 ], [ 40, 37 ], [ 41, 38 ] ] }, "stringTable": [ "__func__.0 (in [kernel.kallsyms].rodata)", "perf_trace_ext4_fc_track_inode (in [kernel.kallsyms])", "perf_trace_ext4_es_insert_delayed_block (in [kernel.kallsyms])", "ext4_es_show_pblock (in [kernel.kallsyms])", "perf_trace_ext4_ext_rm_leaf (in [kernel.kallsyms])", "devcgroup_access_write (in [kernel.kallsyms])", "devcgroup_update_access (in [kernel.kallsyms])", "propagate_exception (in [kernel.kallsyms])", "revalidate_active_exceptions (in [kernel.kallsyms])", "perf_trace_ext4_fc_commit_stop (in [kernel.kallsyms])", "perf_fetch_caller_regs (in [kernel.kallsyms])", "khugepaged (in [kernel.kallsyms])", "khugepaged_wait_work (in [kernel.kallsyms])", "freezable_schedule_timeout (in [kernel.kallsyms])", "freezer_count (in [kernel.kallsyms])", "try_to_freeze (in [kernel.kallsyms])", "try_to_freeze_unsafe (in [kernel.kallsyms])", "split_huge_pages_write (in [kernel.kallsyms])", "migrate_pages (in [kernel.kallsyms])", "unmap_and_move (in [kernel.kallsyms])", "__unmap_and_move (in [kernel.kallsyms])", "collect_events (in [kernel.kallsyms])", "uncore_down_prepare (in [kernel.kallsyms])", "perf_iommu_read (in [kernel.kallsyms])", "khugepaged_do_scan (in [kernel.kallsyms])", "khugepaged_scan_mm_slot (in [kernel.kallsyms])", "khugepaged_scan_file (in [kernel.kallsyms])", "need_resched (in [kernel.kallsyms])", "get_current (in [kernel.kallsyms])", "move_to_new_page (in [kernel.kallsyms])", "khugepaged_scan_pmd (in [kernel.kallsyms])", "trace_mm_khugepaged_scan_pmd (in [kernel.kallsyms])", "migrate_huge_page_move_mapping (in [kernel.kallsyms])", "do_huge_pmd_numa_page (in [kernel.kallsyms])", "pmd_pfn (in [kernel.kallsyms])", "protnone_mask (in [kernel.kallsyms])", "__pte_needs_invert (in [kernel.kallsyms])", "reclaim_high (in [kernel.kallsyms])", "memcg_memory_event (in [kernel.kallsyms])" ], "registerTime": 0, "unregisterTime": null, "processType": "default" } ], "processes": [], "pausedRanges": [] } # Signed-off-by: Anup Sharma <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/cbf03cda175ea3dd2c6cd87bd3f12d803446cb95.1689961706.git.anupnewsmail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf scripts python: Implement add sample function and thread processingAnup Sharma1-2/+50
The stack has been created for storing func and dso from the callchain. The sample has been added to a specific thread. It first checks if the thread exists in the Thread class. Then it call _add_sample function which is responsible for appending a new entry to the samples list. Also callchain parsing and storing part is implemented. Moreover removed the comment from thread. Signed-off-by: Anup Sharma <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/5a112be85ccdcdcd611e343f6a7a7482d01f6299.1689961706.git.anupnewsmail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf scripts python: Implement add sample function and thread processingAnup Sharma1-0/+54
The intern_stack function is responsible for retrieving or creating a stack_id based on the provided frame_id and prefix_id. It first generates a key using the frame_id and prefix_id values. If the stack corresponding to the key is found in the stackMap, it is returned. Otherwise, a new stack is created by appending the prefix_id and frame_id to the stackTable. The key and the index of the newly created stack are added to the stackMap for future reference. The _intern_frame function is responsible for retrieving or creating a frame_id based on the provided frame string. If the frame_id corresponding to the frameString is found in the frameMap, it is returned. Otherwise, a new frame is created by appending relevant information to the frameTable and adding the frameString to the string_id through _intern_string. The _intern_string function will gets a matching string, or saves the new string and returns a String ID. Signed-off-by: Anup Sharma <[email protected]> Link: https://lore.kernel.org/r/4442f4b1ab4c7317cf940560a3a285fcdfbeeb08.1689961706.git.anupnewsmail@gmail.com Cc: Mark Rutland <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf scripts python: Add trace end processing and PRODUCT and CATEGORIES ↵Anup Sharma1-1/+64
information The final output will now be presented in JSON format following the Gecko profile structure. Additionally, the inclusion of PRODUCT allows easy retrieval of header information for UI. Furthermore, CATEGORIES have been introduced to enable customization of kernel and user colors using input arguments. To facilitate this functionality, an argparse-based parser has been implemented. Note: The implementation of threads will be addressed in subsequent commits for now I have commented it out. Signed-off-by: Anup Sharma <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/fa6d027e4134c48e8a2ea45dd8f6b21e6a3418e4.1689961706.git.anupnewsmail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf scripts python: Add classes and conversion functionsAnup Sharma1-1/+132
This commit introduces new classes and conversion functions to facilitate the representation of Gecko profile information. The new classes Frame, Stack, Sample, and Thread are added to handle specific components of the profile data, also link to the origin docs has been commented out. Additionally, Inside the Thread class _to_json_dict() method has been created that converts the current thread data into the corresponding format expected by the GeckoThread JSON schema, as per the Gecko profile format specification. Signed-off-by: Anup Sharma <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/ab7b40bd32df7101a6f8b4a3aa41570b63b831ac.1689961706.git.anupnewsmail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf scripts python: Extact necessary information from process eventAnup Sharma1-1/+13
The script takes in a sample event dictionary(param_dict) and retrieves relevant data such as time stamp, PID, TID, and comm for each event. Also start time is defined as a global variable as it need to be passed to trace_end for gecko meta information field creation. Signed-off-by: Anup Sharma <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/19910fefcfe4be03cd5c2aa3fec11d3f86c0381b.1689961706.git.anupnewsmail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf scripts python: Add initial script file with usage informationAnup Sharma1-0/+31
Added necessary modules, including the Perf-Trace-Util library, and defines the required functions and variables for using perf script python. The perf_trace_context and Core modules for tracing and processing events has been also imported. Added usage information. Signed-off-by: Anup Sharma <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/f2f1a62f1cc69f44a5414da46a26a4cf124d2744.1689961706.git.anupnewsmail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf doc: Fix typo in perf.data-file-format.txtXiu Jianfeng1-1/+1
The 'it' should be 'is' here, fix it. Signed-off-by: Xiu Jianfeng <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf machine: Include data symbols in the kernel mapNamhyung Kim1-1/+3
When 'perf record -d' is used, it needs data mmaps to symbolize global data. But it missed to collect kernel data maps so it cannot symbolize them. Instead of having a separate map, just increase the kernel map size to include the data section. Probably we can have a separate kernel map for data, but the current code assumes a single kernel map. So it'd require more changes in other places and looks error-prone. I decided not to go that way for now. Also it seems the kernel module size already includes the data section. For example, my system has the following. $ grep -e _stext -e _etext -e _edata /proc/kallsyms ffffffff99800000 T _stext ffffffff9a601ac8 T _etext ffffffff9b446a00 D _edata Size of the text section is (0x9a601ac8 - 0x99800000 = 0xe01ac8) and size including data section is (0x9b446a00 - 0x99800000 = 0x1c46a00). Before: $ perf record -d true $ perf report -D | grep MMAP | head -1 0 0 0x460 [0x60]: PERF_RECORD_MMAP -1/0: [0xffffffff99800000(0xe01ac8) @ 0xffffffff99800000]: x [kernel.kallsyms]_text ^^^^^^^^ here After: $ perf report -D | grep MMAP | head -1 0 0 0x460 [0x60]: PERF_RECORD_MMAP -1/0: [0xffffffff99800000(0x1c46a00) @ 0xffffffff99800000]: x [kernel.kallsyms]_text ^^^^^^^^^ Instead of just replacing it to _edata, try _edata first and then fall back to _etext just in case. Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-07-28perf symbols: Add kallsyms__get_symbol_start()Namhyung Kim2-3/+29
The kallsyms__get_symbol_start() to get any symbol address from kallsyms. The existing kallsyms__get_function_start() only allows text symbols so create this to allow data symbols too. Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Adrian Hunter <[email protected]> Acked-by: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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