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2022-07-30tools/rv: Add dot2cDaniel Bristot de Oliveira4-0/+466
dot2c is a tool that transforms an automata in the graphiviz .dot file into an C representation of the automata. usage: dot2c [-h] dot_file dot2c: converts a .dot file into a C structure positional arguments: dot_file The dot file to be converted optional arguments: -h, --help show this help message and exit Link: https://lkml.kernel.org/r/b26204ba9509c80bcda31b76cdea31ddb188cd24.1659052063.git.bristot@kernel.org Cc: Wim Van Sebroeck <wim@linux-watchdog.org> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Marco Elver <elver@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: Gabriele Paoloni <gpaoloni@redhat.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Clark Williams <williams@redhat.com> Cc: Tao Zhou <tao.zhou@linux.dev> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-trace-devel@vger.kernel.org Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-07-30Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski19-106/+738
Andrii Nakryiko says: ==================== bpf-next 2022-07-29 We've added 22 non-merge commits during the last 4 day(s) which contain a total of 27 files changed, 763 insertions(+), 120 deletions(-). The main changes are: 1) Fixes to allow setting any source IP with bpf_skb_set_tunnel_key() helper, from Paul Chaignon. 2) Fix for bpf_xdp_pointer() helper when doing sanity checking, from Joanne Koong. 3) Fix for XDP frame length calculation, from Lorenzo Bianconi. 4) Libbpf BPF_KSYSCALL docs improvements and fixes to selftests to accommodate s390x quirks with socketcall(), from Ilya Leoshkevich. 5) Allow/denylist and CI configs additions to selftests/bpf to improve BPF CI, from Daniel Müller. 6) BPF trampoline + ftrace follow up fixes, from Song Liu and Xu Kuohai. 7) Fix allocation warnings in netdevsim, from Jakub Kicinski. 8) bpf_obj_get_opts() libbpf API allowing to provide file flags, from Joe Burton. 9) vsnprintf usage fix in bpf_snprintf_btf(), from Fedor Tokarev. 10) Various small fixes and clean ups, from Daniel Müller, Rongguang Wei, Jörn-Thorben Hinz, Yang Li. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (22 commits) bpf: Remove unneeded semicolon libbpf: Add bpf_obj_get_opts() netdevsim: Avoid allocation warnings triggered from user space bpf: Fix NULL pointer dereference when registering bpf trampoline bpf: Fix test_progs -j error with fentry/fexit tests selftests/bpf: Bump internal send_signal/send_signal_tracepoint timeout bpftool: Don't try to return value from void function in skeleton bpftool: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE macro bpf: btf: Fix vsnprintf return value check libbpf: Support PPC in arch_specific_syscall_pfx selftests/bpf: Adjust vmtest.sh to use local kernel configuration selftests/bpf: Copy over libbpf configs selftests/bpf: Sort configuration selftests/bpf: Attach to socketcall() in test_probe_user libbpf: Extend BPF_KSYSCALL documentation bpf, devmap: Compute proper xdp_frame len redirecting frames bpf: Fix bpf_xdp_pointer return pointer selftests/bpf: Don't assign outer source IP to host bpf: Set flow flag to allow any source IP in bpf_tunnel_key geneve: Use ip_tunnel_key flow flags in route lookups ... ==================== Link: https://lore.kernel.org/r/20220729230948.1313527-1-andrii@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-30mm/hmm: add a test for cross device private faultsRalph Campbell1-2/+12
Add a simple test case for when hmm_range_fault() is called with the HMM_PFN_REQ_FAULT flag and a device private PTE is found for a device other than the hmm_range::dev_private_owner. This should cause the page to be faulted back to system memory from the other device and the PFN returned in the output array. Also, remove a piece of code that unnecessarily unmaps part of the buffer. Link: https://lkml.kernel.org/r/20220727000837.4128709-3-rcampbell@nvidia.com Link: https://lkml.kernel.org/r/20220725183615.4118795-3-rcampbell@nvidia.com Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Reviewed-by: Alistair Popple <apopple@nvidia.com> Cc: Felix Kuehling <felix.kuehling@amd.com> Cc: Philip Yang <Philip.Yang@amd.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-30selftests: add soft-dirty into run_vmtests.shPeter Xu1-0/+2
Link: https://lkml.kernel.org/r/20220725142048.30450-4-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Nadav Amit <nadav.amit@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-30selftests: soft-dirty: add test for mprotectPeter Xu1-1/+66
Add two soft-dirty test cases for mprotect() on both anon or file. Link: https://lkml.kernel.org/r/20220725142048.30450-3-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Nadav Amit <nadav.amit@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-30selftest/vm: uninitialized variable in main()Dan Carpenter1-1/+1
Initialize "length" to zero by default. Link: https://lkml.kernel.org/r/YtZzjvHXVXMXxpXO@kili Fixes: ff712a627f72 ("selftests/vm: cleanup hugetlb file after mremap test") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Mina Almasry <almasrymina@google.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-30tools/testing/selftests/vm/hugetlb-madvise.c: silence uninitialized variable ↵Dan Carpenter1-2/+3
warning This code just reads from memory without caring about the data itself. However static checkers complain that "tmp" is never properly initialized. Initialize it to zero and change the name to "dummy" to show that we don't care about the value stored in it. Link: https://lkml.kernel.org/r/YtZ8mKJmktA2GaHB@kili Fixes: c4b6cb884011 ("selftests/vm: add hugetlb madvise MADV_DONTNEED MADV_REMOVE test") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Souptick Joarder (HPE) <jrdr.linux@gmail.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-30tools/vm/page_owner_sort.c: adjust the indent in is_need()Yixuan Cao1-16/+16
I noticed one more indentation than necessary in is_need(). Link: https://lkml.kernel.org/r/20220717195506.7602-1-caoyixuan2019@email.szu.edu.cn Signed-off-by: Yixuan Cao <caoyixuan2019@email.szu.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-30selftests/vm: skip 128TBswitch on unsupported archAdam Sindelar1-4/+4
The test va_128TBswitch.c exercises a feature only supported on PPC and x86_64, but it's run on other 64-bit archs as well. Before this patch, the test did nothing and returned 0 for KSFT_PASS. This patch makes it return the KSFT codes from kselftest.h, including KSFT_SKIP when appropriate. Verified on arm64 and x86_64. Link: https://lkml.kernel.org/r/20220704123813.427625-1-adam@wowsignal.io Signed-off-by: Adam Sindelar <adam@wowsignal.io> Cc: David Vernet <void@manifault.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-30selftests/vm: fix errno handling in mrelease_testAdam Sindelar1-5/+11
mrelease_test should return KSFT_SKIP when process_mrelease is not defined, but due to a perror call consuming the errno, it returns KSFT_FAIL. This patch decides the exit code before calling perror. [adam@wowsignal.io: fix remaining instances of errno mishandling] Link: https://lkml.kernel.org/r/20220706141602.10159-1-adam@wowsignal.io Link: https://lkml.kernel.org/r/20220704173351.19595-1-adam@wowsignal.io Fixes: 33776141b812 ("selftests: vm: add process_mrelease tests") Signed-off-by: Adam Sindelar <adam@wowsignal.io> Reviewed-by: David Vernet <void@manifault.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-30libbpf: Add bpf_obj_get_opts()Joe Burton3-0/+21
Add an extensible variant of bpf_obj_get() capable of setting the `file_flags` parameter. This parameter is needed to enable unprivileged access to BPF maps. Without a method like this, users must manually make the syscall. Signed-off-by: Joe Burton <jevburton@google.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220729202727.3311806-1-jevburton.kernel@gmail.com
2022-07-29Merge tag 'perf-tools-fixes-for-v5.19-2022-07-29' of ↵Linus Torvalds4-31/+78
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools fixes from Arnaldo Carvalho de Melo: - Fix addresses for bss symbols, describing variables used in resolving data access in tools such as 'perf c2c' and 'perf mem'. - Skip symbols if SHF_ALLOC flag is not set, a technique used for listing deprecated symbols, its addresses are zeros, so not useful. - Remove undefined behavior from bpf_perf_object__next() when dealing with an empty bpf_objects_list list. - Make a ARM CoreSight disasm script work with both python2 and python3. - Sync x86's cpufeatures header with with the kernel sources. * tag 'perf-tools-fixes-for-v5.19-2022-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: perf bpf: Remove undefined behavior from bpf_perf_object__next() perf symbol: Skip symbols if SHF_ALLOC flag is not set perf symbol: Correct address for bss symbols perf scripts python: Let script to be python2 compliant tools headers cpufeatures: Sync with the kernel sources
2022-07-29selftests/bpf: Bump internal send_signal/send_signal_tracepoint timeoutDaniel Müller2-6/+3
The send_signal/send_signal_tracepoint is pretty flaky, with at least one failure in every ten runs on a few attempts I've tried it: > test_send_signal_common:PASS:pipe_c2p 0 nsec > test_send_signal_common:PASS:pipe_p2c 0 nsec > test_send_signal_common:PASS:fork 0 nsec > test_send_signal_common:PASS:skel_open_and_load 0 nsec > test_send_signal_common:PASS:skel_attach 0 nsec > test_send_signal_common:PASS:pipe_read 0 nsec > test_send_signal_common:PASS:pipe_write 0 nsec > test_send_signal_common:PASS:reading pipe 0 nsec > test_send_signal_common:PASS:reading pipe error: size 0 0 nsec > test_send_signal_common:FAIL:incorrect result unexpected incorrect result: actual 48 != expected 50 > test_send_signal_common:PASS:pipe_write 0 nsec > #139/1 send_signal/send_signal_tracepoint:FAIL The reason does not appear to be a correctness issue in the strict sense. Rather, we merely do not receive the signal we are waiting for within the provided timeout. Let's bump the timeout by a factor of ten. With that change I have not been able to reproduce the failure in 150+ iterations. I am also sneaking in a small simplification to the test_progs test selection logic. Signed-off-by: Daniel Müller <deso@posteo.net> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20220727182955.4044988-1-deso@posteo.net
2022-07-29Merge branches 'pm-devfreq', 'pm-qos', 'pm-tools' and 'pm-docs'Rafael J. Wysocki4-186/+360
Merge devfreq changes, PM QoS change, and power management tools and documentation changes for v5.20-rc1: - Add new devfreq driver for Mediatek CCI (Cache Coherent Interconnect) (Johnson Wang). - Convert the Samsung Exynos SoC Bus bindings to DT schema of exynos-bus.c (Krzysztof Kozlowski). - Address kernel-doc warnings by adding the description for unused fucntion parameters in devfreq core (Mauro Carvalho Chehab). - Use NULL to pass a null pointer rather than zero according to the function propotype in imx-bus.c (Colin Ian King). - Print error message instead of error interger value in tegra30-devfreq.c (Dmitry Osipenko). - Add checks to prevent setting negative frequency QoS limits for CPUs (Shivnandan Kumar). - Update the pm-graph suite of utilities to the latest revision 5.9 including multiple improvements (Todd Brandt). - Drop pme_interrupt reference from the PCI power management documentation (Mario Limonciello). * pm-devfreq: PM / devfreq: tegra30: Add error message for devm_devfreq_add_device() PM / devfreq: imx-bus: use NULL to pass a null pointer rather than zero PM / devfreq: shut up kernel-doc warnings dt-bindings: interconnect: samsung,exynos-bus: convert to dtschema PM / devfreq: mediatek: Introduce MediaTek CCI devfreq driver dt-bindings: interconnect: Add MediaTek CCI dt-bindings * pm-qos: PM: QoS: Add check to make sure CPU freq is non-negative * pm-tools: pm-graph v5.9 * pm-docs: Documentation: PM: Drop pme_interrupt reference
2022-07-29bpftool: Don't try to return value from void function in skeletonJörn-Thorben Hinz1-1/+1
A skeleton generated by bpftool previously contained a return followed by an expression in OBJ_NAME__detach(), which has return type void. This did not hurt, the bpf_object__detach_skeleton() called there returns void itself anyway, but led to a warning when compiling with e.g. -pedantic. Signed-off-by: Jörn-Thorben Hinz <jthinz@mailbox.tu-berlin.de> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20220726133203.514087-1-jthinz@mailbox.tu-berlin.de
2022-07-29bpftool: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE macroRongguang Wei1-1/+1
Use the ARRAY_SIZE macro and make the code more compact. Signed-off-by: Rongguang Wei <weirongguang@kylinos.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20220726093045.3374026-1-clementwei90@163.com
2022-07-29Merge tag 'thermal-v5.20-rc1' of ↵Rafael J. Wysocki2-1/+4
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal control changes for 5.20-rc1 from Daniel Lezcano: "- Make per cpufreq / devfreq cooling device ops instead of using a global variable, fix comments and rework the trace information (Lukasz Luba) - Add the include/dt-bindings/thermal.h under the area covered by the thermal maintainer in the MAINTAINERS file (Lukas Bulwahn) - Improve the error output by giving the sensor identification when a thermal zone failed to initialize, the DT bindings by changing the positive logic and adding the r8a779f0 support on the rcar3 (Wolfram Sang) - Convert the QCom tsens DT binding to the dtsformat format (Krzysztof Kozlowski) - Remove the pointless get_trend() function in the QCom, Ux500 and tegra thermal drivers, along with the unused DROP_FULL and RAISE_FULL trends definitions. Simplify the code by using clamp() macros (Daniel Lezcano) - Fix ref_table memory leak at probe time on the k3_j72xx bandgap (Bryan Brattlof) - Fix array underflow in prep_lookup_table (Dan Carpenter) - Add static annotation to the k3_j72xx_bandgap_j7* data structure (Jin Xiaoyun) - Fix typos in comments detected on sun8i by Coccinelle (Julia Lawall) - Fix typos in comments on rzg2l (Biju Das) - Remove as unnecessary call to dev_err() as the error is already printed by the failing function on u8500 (Yang Li) - Register the thermal zones as hwmon sensors for the Qcom thermal sensors (Dmitry Baryshkov) - Fix 'tmon' tool compilation issue by adding phtread.h include (Markus Mayer) - Fix typo in the comments for the 'tmon' tool (Slark Xiao) - Consolidate the thermal core code by beginning to move the thermal trip structure from the thermal OF code as a generic structure to be used by the different sensors when registering a thermal zone (Daniel Lezcano)" * tag 'thermal-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (36 commits) thermal/of: Initialize trip points separately thermal/of: Use thermal trips stored in the thermal zone thermal/core: Add thermal_trip in thermal_zone thermal/core: Rename 'trips' to 'num_trips' thermal/core: Move thermal_set_delay_jiffies to static thermal/core: Remove unneeded EXPORT_SYMBOLS thermal/of: Move thermal_trip structure to thermal.h thermal/of: Remove the device node pointer for thermal_trip thermal/of: Replace device node match with device node search thermal/core: Remove duplicate information when an error occurs thermal/core: Avoid calling ->get_trip_temp() unnecessarily thermal/tools/tmon: Fix typo 'the the' in comment thermal/tools/tmon: Include pthread and time headers in tmon.h thermal/ti-soc-thermal: Fix comment typo thermal/drivers/qcom/spmi-adc-tm5: Register thermal zones as hwmon sensors thermal/drivers/qcom/temp-alarm: Register thermal zones as hwmon sensors thermal/drivers/u8500: Remove unnecessary print function dev_err() thermal/drivers/rzg2l: Fix comments thermal/drivers/sun8i: Fix typo in comment thermal/drivers/k3_j72xx_bandgap: Make k3_j72xx_bandgap_j721e_data and k3_j72xx_bandgap_j7200_data static ...
2022-07-29selftests: netdevsim: Add test cases for route deletion failureIdo Schimmel1-0/+45
Add IPv4 and IPv6 test cases that ensure that we are not leaking a reference on the nexthop device when we are unable to delete its associated route. Without the fix in a previous patch ("netdevsim: fib: Fix reference count leak on route deletion failure") both test cases get stuck, waiting for the reference to be released from the dummy device [1][2]. [1] unregister_netdevice: waiting for dummy1 to become free. Usage count = 5 leaked reference. fib_check_nh+0x275/0x620 fib_create_info+0x237c/0x4d30 fib_table_insert+0x1dd/0x1d20 inet_rtm_newroute+0x11b/0x200 rtnetlink_rcv_msg+0x43b/0xd20 netlink_rcv_skb+0x15e/0x430 netlink_unicast+0x53b/0x800 netlink_sendmsg+0x945/0xe40 ____sys_sendmsg+0x747/0x960 ___sys_sendmsg+0x11d/0x190 __sys_sendmsg+0x118/0x1e0 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd [2] unregister_netdevice: waiting for dummy1 to become free. Usage count = 5 leaked reference. fib6_nh_init+0xc46/0x1ca0 ip6_route_info_create+0x1167/0x19a0 ip6_route_add+0x27/0x150 inet6_rtm_newroute+0x161/0x170 rtnetlink_rcv_msg+0x43b/0xd20 netlink_rcv_skb+0x15e/0x430 netlink_unicast+0x53b/0x800 netlink_sendmsg+0x945/0xe40 ____sys_sendmsg+0x747/0x960 ___sys_sendmsg+0x11d/0x190 __sys_sendmsg+0x118/0x1e0 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-29selftests: seg6: add selftest for SRv6 H.L2Encaps.Red behaviorAndrea Mayer2-0/+822
This selftest is designed for testing the H.L2Encaps.Red behavior. It instantiates a virtual network composed of several nodes: hosts and SRv6 routers. Each node is realized using a network namespace that is properly interconnected to others through veth pairs. The test considers SRv6 routers implementing a L2 VPN leveraged by hosts for communicating with each other. Such routers make use of the SRv6 H.L2Encaps.Red behavior for applying SRv6 policies to L2 traffic coming from hosts. The correct execution of the behavior is verified through reachability tests carried out between hosts belonging to the same VPN. Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-29selftests: seg6: add selftest for SRv6 H.Encaps.Red behaviorAndrea Mayer2-0/+880
This selftest is designed for testing the H.Encaps.Red behavior. It instantiates a virtual network composed of several nodes: hosts and SRv6 routers. Each node is realized using a network namespace that is properly interconnected to others through veth pairs. The test considers SRv6 routers implementing L3 VPNs leveraged by hosts for communicating with each other. Such routers make use of the SRv6 H.Encaps.Red behavior for applying SRv6 policies to L3 traffic coming from hosts. The correct execution of the behavior is verified through reachability tests carried out between hosts belonging to the same VPN. Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-29selftests: net: dsa: Add a Makefile which installs the selftestsMartin Blumenstingl1-0/+17
Add a Makefile which takes care of installing the selftests in tools/testing/selftests/drivers/net/dsa. This can be used to install all DSA specific selftests and forwarding.config using the same approach as for the selftests in tools/testing/selftests/net/forwarding. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20220727191642.480279-1-martin.blumenstingl@googlemail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29selftests: tls: handful of memrnd() and length checksJakub Kicinski1-9/+17
Add a handful of memory randomizations and precise length checks. Nothing is really broken here, I did this to increase confidence when debugging. It does fix a GCC warning, tho. Apparently GCC recognizes that memory needs to be initialized for send() but does not recognize that for write(). Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski4-6/+17
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29libbpf: Support PPC in arch_specific_syscall_pfxDaniel Müller1-1/+10
Commit 708ac5bea0ce ("libbpf: add ksyscall/kretsyscall sections support for syscall kprobes") added the arch_specific_syscall_pfx() function, which returns a string representing the architecture in use. As it turns out this function is currently not aware of Power PC, where NULL is returned. That's being flagged by the libbpf CI system, which builds for ppc64le and the compiler sees a NULL pointer being passed in to a %s format string. With this change we add representations for two more architectures, for Power PC and Power PC 64, and also adjust the string format logic to handle NULL pointers gracefully, in an attempt to prevent similar issues with other architectures in the future. Fixes: 708ac5bea0ce ("libbpf: add ksyscall/kretsyscall sections support for syscall kprobes") Signed-off-by: Daniel Müller <deso@posteo.net> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220728222345.3125975-1-deso@posteo.net
2022-07-28tools/power turbostat: version 2022.07.28Len Brown1-1/+1
update version number Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: do not decode ACC for ICX and SPRArtem Bityutskiy1-2/+0
The ACC (automatic C-state conversion) feature was available on Sky Lake and Cascade Lake Xeons (SKX and CLX), but it is not available on Ice Lake and Sapphire Rapids Xeons (ICX and SPR). Therefore, stop decoding it for ICX and SPR. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: fix SPR PC6 limitsArtem Bityutskiy1-1/+1
Sapphire Rapids Xeon (SPR) supports 2 flavors of PC6 - PC6N (non-retention) and PC6R (retention). Before this patch we used ICX package C-state limits, which was wrong, because ICX has only one PC6 flavor. With this patch, we use SKX PC6 limits for SPR, because they are the same. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: cleanup 'automatic_cstate_conversion_probe()'Artem Bityutskiy1-1/+9
The 'automatic_cstate_conversion_probe()' function has a too long 'if' statement, convert it to a 'switch' statement in order to improve code readability a bit. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: separate SPR from ICXArtem Bityutskiy1-5/+26
Before this patch, SPR platform was considered identical to ICX platform. This patch separates SPR support from ICX. This patch is a preparation for adding SPR-specific package C-state limits support. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Reviewed-by: Chen Yu <yu.c.chen@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbosstat: fix commentJiang Jian1-1/+1
remove duplicate "the" in comment Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: Support RAPTORLAKE PGeorge D Sworo1-0/+1
Add initial support for Raptorlake model Signed-off-by: George D Sworo <george.d.sworo@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: add support for ALDERLAKE_NZhang Rui1-0/+1
Add support for ALDERLAKE_N platform. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: dump secondary Turbo-Ratio-LimitLen Brown1-5/+10
Intel Performance Hybrid processors have a 2nd MSR describing the turbo limits enforced on the Ecores. Note, TRL and Secondary-TRL are usually R/O information, but on overclock-capable parts, they can be written. Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: simplify dump_turbo_ratio_limits()Len Brown1-46/+9
code cleanup only. no functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: dump CPUID.7.EDX.HybridLen Brown1-1/+5
CPUID leaf 7 EDX now tells us if the processor has hybrid CPUs Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: update turbostat.8Len Brown1-76/+124
Update turbostat.8 to reflect new uncore frequency output (UncMHz) Also, refresh examples. Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: Show uncore frequencyLen Brown1-1/+88
When CONFIG_INTEL_UNCORE_FREQ_CONTROL is effective, (Linux 5.9 and later), print the current (and default) min and max uncore frequency limits. When that driver provides the current uncore frequency (Linux 5.18 and later), print a UncMHz column reflecting the current uncore frequency. Note that UncMHz is an instantaneous sample, not an average. eg. $ sudo ./turbostat -S --show frequency ... Uncore Frequency pkg0 die0: 800 - 3900 MHz (800 - 3900 MHz) ... Avg_MHz Busy% Bzy_MHz TSC_MHz UncMHz 28 0.70 4049 3095 3900 Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: Fix file pointer leakColin Ian King1-1/+1
Currently if a fscanf fails then an early return leaks an open file pointer. Fix this by fclosing the file before the return. Detected using static analysis with cppcheck: tools/power/x86/turbostat/turbostat.c:2039:3: error: Resource leak: fp [resourceLeak] Fixes: eae97e053fe3 ("tools/power turbostat: Support thermal throttle count print") Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Acked-by: Chen Yu <yu.c.chen@intel.com> Reviewed-by: Tom Rix <trix@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: replace strncmp with single character compareColin Ian King1-1/+1
Using strncmp for a single character comparison is overly complicated, just use a simpler single character comparison instead. Also stops static analyzers (such as cppcheck) from complaining about strncmp on non-null terminated strings. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: print the kernel boot commandlineChen Yu1-1/+26
It would be handy to have cmdline in turbostat output. For example, according to the turbostat output, there are no C-states requested. In this case the user is very curious if something like intel_idle.max_cstate=0 was used, or may be idle=none too. It is also curious whether things like intel_pstate=nohwp were used. Print the boot command line accordingly: turbostat version 21.05.04 - Len Brown <lenb@kernel.org> Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.16.0+ root=UUID= b42359ed-1e05-42eb-8757-6bf2a1c19070 ro quiet splash vt.handoff=7 Suggested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Chen Yu <yu.c.chen@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power turbostat: Introduce support for RaptorLakeZhang Rui1-0/+1
RaptorLake is compatible with AlderLake. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28tools/power/x86/intel-speed-select: Remove unneeded semicolonXin Gao1-1/+1
Remove an unneeded semicolon. Signed-off-by: Xin Gao <gaoxin@cdjrlc.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-07-28tools/power/x86/intel-speed-select: Fix off by one checkDan Carpenter1-1/+1
Change > MAX_DIE_PER_PACKAGE to >= MAX_DIE_PER_PACKAGE to prevent accessing one element beyond the end of the array. Fixes: 7fd786dfbd2c ("tools/power/x86/intel-speed-select: OOB daemon mode") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-07-28KVM: selftests: Verify VMX MSRs can be restored to KVM-supported valuesSean Christopherson4-0/+87
Verify that KVM allows toggling VMX MSR bits to be "more" restrictive, and also allows restoring each MSR to KVM's original, less restrictive value. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220607213604.3346000-16-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-07-28KVM: selftests: Add an option to run vCPUs while disabling dirty loggingSean Christopherson1-3/+27
Add a command line option to dirty_log_perf_test to run vCPUs for the entire duration of disabling dirty logging. By default, the test stops running runs vCPUs before disabling dirty logging, which is faster but less interesting as it doesn't stress KVM's handling of contention between page faults and the zapping of collapsible SPTEs. Enabling the flag also lets the user verify that KVM is indeed rebuilding zapped SPTEs as huge pages by checking KVM's pages_{1g,2m,4k} stats. Without vCPUs to fault in the zapped SPTEs, the stats will show that KVM is zapping pages, but they never show whether or not KVM actually allows huge pages to be recreated. Note! Enabling the flag can _significantly_ increase runtime, especially if the thread that's disabling dirty logging doesn't have a dedicated pCPU, e.g. if all pCPUs are used to run vCPUs. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220715232107.3775620-5-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-07-28thermal/tools/tmon: Fix typo 'the the' in commentSlark Xiao1-1/+1
Replace 'the the' with 'the' in the comment. Signed-off-by: Slark Xiao <slark_xiao@163.com> Link: https://lore.kernel.org/r/20220722104047.83312-1-slark_xiao@163.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-07-28thermal/tools/tmon: Include pthread and time headers in tmon.hMarkus Mayer1-0/+3
Include sys/time.h and pthread.h in tmon.h, so that types "pthread_mutex_t" and "struct timeval tv" are known when tmon.h references them. Without these headers, compiling tmon against musl-libc will fail with these errors: In file included from sysfs.c:31:0: tmon.h:47:8: error: unknown type name 'pthread_mutex_t' extern pthread_mutex_t input_lock; ^~~~~~~~~~~~~~~ make[3]: *** [<builtin>: sysfs.o] Error 1 make[3]: *** Waiting for unfinished jobs.... In file included from tui.c:31:0: tmon.h:54:17: error: field 'tv' has incomplete type struct timeval tv; ^~ make[3]: *** [<builtin>: tui.o] Error 1 make[2]: *** [Makefile:83: tmon] Error 2 Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com> Acked-by: Alejandro González <alejandro.gonzalez.correo@gmail.com> Tested-by: Alejandro González <alejandro.gonzalez.correo@gmail.com> Fixes: 94f69966faf8 ("tools/thermal: Introduce tmon, a tool for thermal subsystem") Link: https://lore.kernel.org/r/20220718031040.44714-1-f.fainelli@gmail.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-07-27selftests/seccomp: Fix compile warning when CC=clangYiFei Zhu1-1/+1
clang has -Wconstant-conversion by default, and the constant 0xAAAAAAAAA (9 As) being converted to an int, which is generally 32 bits, results in the compile warning: clang -Wl,-no-as-needed -Wall -isystem ../../../../usr/include/ -lpthread seccomp_bpf.c -lcap -o seccomp_bpf seccomp_bpf.c:812:67: warning: implicit conversion from 'long' to 'int' changes value from 45812984490 to -1431655766 [-Wconstant-conversion] int kill = kill_how == KILL_PROCESS ? SECCOMP_RET_KILL_PROCESS : 0xAAAAAAAAA; ~~~~ ^~~~~~~~~~~ 1 warning generated. -1431655766 is the expected truncation, 0xAAAAAAAA (8 As), so use this directly in the code to avoid the warning. Fixes: 3932fcecd962 ("selftests/seccomp: Add test for unknown SECCOMP_RET kill behavior") Signed-off-by: YiFei Zhu <zhuyifei@google.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220526223407.1686936-1-zhuyifei@google.com
2022-07-27Merge tag 'asm-generic-fixes-5.19-2' of ↵Linus Torvalds1-1/+10
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic fixes from Arnd Bergmann: "Two more bug fixes for asm-generic, one addressing an incorrect Kconfig symbol reference and another one fixing a build failure for the perf tool on mips and possibly others" * tag 'asm-generic-fixes-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic: remove a broken and needless ifdef conditional tools: Fixed MIPS builds due to struct flock re-definition
2022-07-27selftests/bpf: Adjust vmtest.sh to use local kernel configurationDaniel Müller1-19/+34
So far the vmtest.sh script, which can be used as a convenient way to run bpf selftests, has obtained the kernel config safe to use for testing from the libbpf/libbpf GitHub repository [0]. Given that we now have included this configuration into this very repository, we can just consume it from here as well, eliminating the necessity of remote accesses. With this change we adjust the logic in the script to use the configuration from below tools/testing/selftests/bpf/configs/ instead of pulling it over the network. [0] https://github.com/libbpf/libbpf Signed-off-by: Daniel Müller <deso@posteo.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Mykola Lysenko <mykolal@fb.com> Link: https://lore.kernel.org/bpf/20220727001156.3553701-4-deso@posteo.net
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-27 20:05:53 +0300