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2025-06-20KVM: selftests: Fall back to split IRQ chip if full in-kernel chip is ↵Sean Christopherson
unsupported Now that KVM x86 allows compiling out support for in-kernel I/O APIC (and PIC and PIT) emulation, i.e. allows disabling KVM_CREATE_IRQCHIP for all intents and purposes, fall back to a split IRQ chip for x86 if creating the full in-kernel version fails with ENOTTY. Acked-by: Kai Huang <kai.huang@intel.com> Link: https://lore.kernel.org/r/20250611213557.294358-17-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-06-20perf header: remove unecessary core id testAnubhav Shelat
It is possible for systems to have a greater socket id number than the number of cpus present on a machine, so this test is obselete and should be removed. Signed-off-by: Anubhav Shelat <ashelat@redhat.com> Reviewed-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250618142921.4053400-2-ashelat@redhat.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-06-20KVM: selftests: Print a more helpful message for EACCESS in access tracking testSean Christopherson
Use open_path_or_exit() helper to probe /sys/kernel/mm/page_idle/bitmap in the access tracking perf test so that a helpful/pertinent SKIP message is printed if the file exists but is inaccessible, e.g. because the file has the kernel's default 0600 permissions. Cc: James Houghton <jthoughton@google.com> Link: https://lore.kernel.org/r/20250516215909.2551628-5-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-06-20KVM: selftests: Play nice with EACCES errors in open_path_or_exit()Sean Christopherson
Expand the SKIP conditions of the open_path_or_exit() helper to skip on EACCES as well as ENOENT. Most often, lack of permissions to a file needed by a KVM selftests is due to a file being root-only by default, not because of any bug/misconfiguration that warrants failing a test. Link: https://lore.kernel.org/r/20250516215909.2551628-4-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-06-20KVM: selftests: Add __open_path_or_exit() variant to provide extra help infoSean Christopherson
Add an inner __open_path_or_exit() API to let the caller provide additional information on ENOENT to try and help the user figure out why the test is being skipped, e.g. for files like the page_idle bitmap needed by the access tracking perf, which is dependent on a Kconfig. Immediately convert /dev/kvm to the new API, both as an example and because users might not know that some architectures/setups require loading KVM. Link: https://lore.kernel.org/r/20250516215909.2551628-3-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-06-20KVM: selftests: Verify KVM is loaded when getting a KVM module paramSean Christopherson
Probe /dev/kvm when getting a KVM module param so that attempting to load a module param super early in a selftest generates a SKIP message about KVM not being loaded/enabled, versus some random parameter not existing. E.g. KVM x86's unconditional retrieval of force_emulation_prefix during kvm_selftest_arch_init() generates a rather confusing error message that takes far too much triage to understand. Link: https://lore.kernel.org/r/20250516215909.2551628-2-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-06-20perf test: Add header shell testIan Rogers
Add a shell test that sanity checks perf data and pipe mode produce expected header fields. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250619002555.100896-1-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-06-20KVM: selftests: Fix spelling of 'occurrences' in sparsebit.c commentsRahul Kumar
Correct two instances of the misspelled word 'occurences' to 'occurrences' in comments explaining node invariants in sparsebit.c. Signed-off-by: Rahul Kumar <rk0006818@gmail.com> Link: https://lore.kernel.org/r/20250523181606.568320-1-rk0006818@gmail.com [sean: massage changelog] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-06-20perf parse-events: Set default GH modifier properlyNamhyung Kim
Commit 7b100989b4f6bce7 ("perf evlist: Remove __evlist__add_default") changed to use "cycles:P" as a default event. But the problem is it cannot set other default modifiers correctly. perf kvm needs to set attr.exclude_host by default but it didn't work because of the logic in the parse_events__modifier_list(). Also the exclude_GH_default was applied only if ":u" modifier was specified - which is strange. Move it out after handling the ":GH" and check perf_host and perf_guest properly. Before: $ ./perf kvm record -vv true |& grep exclude (nothing) But specifying an event (without a modifier) works: $ ./perf kvm record -vv -e cycles true |& grep exclude exclude_host 1 After: It now works for the both cases: $ ./perf kvm record -vv true |& grep exclude exclude_host 1 $ ./perf kvm record -vv -e cycles true |& grep exclude exclude_host 1 Reviewed-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250606225431.2109754-1-namhyung@kernel.org Fixes: 35c8d21371e9b342 ("perf tools: Don't set attr.exclude_guest by default") Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-06-20perf test: Expand user space event reading (rdpmc) testsIan Rogers
Test that disabling rdpmc support via /sys/bus/event_source/cpu*/rdpmc disables reading in the mmap (libperf read support will fallback to using a system call). Test all hybrid PMUs support rdpmc. Ensure hybrid PMUs use the correct CPU to rdpmc the correct event. Previously the test would open cycles or instructions with no extended type then rdpmc it on whatever CPU. This could fail/skip due to which CPU the test was scheduled upon. Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Link: https://lore.kernel.org/r/20250614004528.1652860-1-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-06-20KVM: selftests: Verify KVM disable interception (for userspace) on filter changeSean Christopherson
Re-read MSR_{FS,GS}_BASE after restoring the "allow everything" userspace MSR filter to verify that KVM stops forwarding exits to userspace. This can also be used in conjunction with manual verification (e.g. printk) to ensure KVM is correctly updating the MSR bitmaps consumed by hardware. Tested-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Tested-by: Manali Shukla <Manali.Shukla@amd.com> Link: https://lore.kernel.org/r/20250610225737.156318-33-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-06-20perf vendor events arm64: Update FUJITSU-MONAKA pmu eventKotaro, Tokai
Update pmu events for FUJITSU-MONAKA. And, also updated common-and-microarch.json. FUJITSU-MONAKA PMU Events Specification v1.1 and Errata v1.0 URL: https://github.com/fujitsu/FUJITSU-MONAKA Arm Architecture Reference Version L.b URL: https://developer.arm.com/documentation/ddi0487/lb/?lang=en Signed-off-by: Kotaro, Tokai <fj0635gf@aa.jp.fujitsu.com> Reviewed-by: James Clark <james.clark@linaro.org> Link: https://lore.kernel.org/r/20250618063618.1244363-1-fj0635gf@aa.jp.fujitsu.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-06-20bpftool: Fix memory leak in dump_xx_nlmsg on realloc failureYuan Chen
In function dump_xx_nlmsg(), when realloc() fails to allocate memory, the original pointer to the buffer is overwritten with NULL. This causes a memory leak because the previously allocated buffer becomes unreachable without being freed. Fixes: 7900efc19214 ("tools/bpf: bpftool: improve output format for bpftool net") Signed-off-by: Yuan Chen <chenyuan@kylinos.cn> Reviewed-by: Quentin Monnet <qmo@kernel.org> Link: https://lore.kernel.org/r/20250620012133.14819-1-chenyuan_fl@163.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-20selftests/bpf: Add test for bpftool access to read-only protected mapsSlava Imameev
Add selftest cases that validate bpftool's expected behavior when accessing maps protected from modification via security_bpf_map. The test includes a BPF program attached to security_bpf_map with two maps: - A protected map that only allows read-only access - An unprotected map that allows full access The test script attaches the BPF program to security_bpf_map and verifies that for the bpftool map command: - Read access works on both maps - Write access fails on the protected map - Write access succeeds on the unprotected map - These behaviors remain consistent when the maps are pinned Signed-off-by: Slava Imameev <slava.imameev@crowdstrike.com> Reviewed-by: Quentin Monnet <qmo@kernel.org> Link: https://lore.kernel.org/r/20250620151812.13952-2-slava.imameev@crowdstrike.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-20bpftool: Use appropriate permissions for map accessSlava Imameev
Modify several functions in tools/bpf/bpftool/common.c to allow specification of requested access for file descriptors, such as read-only access. Update bpftool to request only read access for maps when write access is not required. This fixes errors when reading from maps that are protected from modification via security_bpf_map. Signed-off-by: Slava Imameev <slava.imameev@crowdstrike.com> Reviewed-by: Quentin Monnet <qmo@kernel.org> Link: https://lore.kernel.org/r/20250620151812.13952-1-slava.imameev@crowdstrike.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-19selftests/mm: skip uprobe vma merge test if uprobes are not enabledPedro Falcato
If uprobes are not enabled, the test currently fails with: 7151 12:46:54.627936 # # # RUN merge.handle_uprobe_upon_merged_vma ... 7152 12:46:54.639014 # # f /sys/bus/event_source/devices/uprobe/type 7153 12:46:54.639306 # # fopen: No such file or directory 7154 12:46:54.650451 # # # merge.c:473:handle_uprobe_upon_merged_vma:Expected read_sysfs("/sys/bus/event_source/devices/uprobe/type", &type) (1) == 0 (0) 7155 12:46:54.650730 # # # handle_uprobe_upon_merged_vma: Test terminated by assertion 7156 12:46:54.661750 # # # FAIL merge.handle_uprobe_upon_merged_vma 7157 12:46:54.662030 # # not ok 8 merge.handle_uprobe_upon_merged_vma Skipping is a more sane and friendly behavior here. Link: https://lkml.kernel.org/r/20250610122209.3177587-1-pfalcato@suse.de Fixes: efe99fabeb11 ("selftests/mm: add test about uprobe pte be orphan during vma merge") Signed-off-by: Pedro Falcato <pfalcato@suse.de> Reported-by: Aishwarya <aishwarya.tcv@arm.com> Closes: https://lore.kernel.org/linux-mm/20250610103729.72440-1-aishwarya.tcv@arm.com/ Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Tested-by : Donet Tom <donettom@linux.ibm.com> Reviewed-by : Donet Tom <donettom@linux.ibm.com> Reviewed-by: Dev Jain <dev.jain@arm.com> Reviewed-by: Pu Lehui <pulehui@huawei.com> Cc: Jann Horn <jannh@google.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Mark Brown <broonie@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-19selftests/mm: add configs to fix testcase failureDev Jain
If CONFIG_UPROBES is not set, a merge subtest fails: Failure log: 7151 12:46:54.627936 # # # RUN merge.handle_uprobe_upon_merged_vma ... 7152 12:46:54.639014 # # f /sys/bus/event_source/devices/uprobe/type 7153 12:46:54.639306 # # fopen: No such file or directory 7154 12:46:54.650451 # # # merge.c:473:handle_uprobe_upon_merged_vma:Expected read_sysfs("/sys/bus/event_source/devices/uprobe/type", &type) (1) == 0 (0) 7155 12:46:54.650730 # # # handle_uprobe_upon_merged_vma: Test terminated by assertion 7156 12:46:54.661750 # # # FAIL merge.handle_uprobe_upon_merged_vma 7157 12:46:54.662030 # # not ok 8 merge.handle_uprobe_upon_merged_vma CONFIG_UPROBES is enabled by CONFIG_UPROBE_EVENTS, which gets enabled by CONFIG_FTRACE. Therefore add these configs to selftests/mm/config so that CI systems can include this config in the kernel build. To be completely safe, add CONFIG_PROFILING too, to enable the dependency chain PROFILING -> PERF_EVENTS -> UPROBE_EVENTS -> UPROBES. Link: https://lkml.kernel.org/r/20250613034912.53791-1-dev.jain@arm.com Fixes: efe99fabeb11 ("selftests/mm: add test about uprobe pte be orphan during vma merge") Signed-off-by: Dev Jain <dev.jain@arm.com> Reported-by: Aishwarya <aishwarya.tcv@arm.com> Closes: https://lore.kernel.org/all/20250610103729.72440-1-aishwarya.tcv@arm.com/ Tested-by: Aishwarya TCV <aishwarya.tcv@arm.com> Tested-by : Donet Tom <donettom@linux.ibm.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Reviewed-by: Donet Tom <donettom@linux.ibm.com> Reviewed-by: Pedro Falcato <pfalcato@suse.de> Cc: Jann Horn <jannh@google.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Pu Lehui <pulehui@huawei.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-19selftests/mm: increase timeout from 180 to 900 secondsShivank Garg
The mm selftests are timing out with the current 180-second limit. Testing shows that run_vmtests.sh takes approximately 11 minutes (664 seconds) to complete. Increase the timeout to 900 seconds (15 minutes) to provide sufficient buffer for the tests to complete successfully. Link: https://lkml.kernel.org/r/20250609120606.73145-2-shivankg@amd.com Signed-off-by: Shivank Garg <shivankg@amd.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc3). No conflicts or adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19Merge tag 'net-6.16-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from wireless. The ath12k fix to avoid FW crashes requires adding support for a number of new FW commands so it's quite large in terms of LoC. The rest is relatively small. Current release - fix to a fix: - ptp: fix breakage after ptp_vclock_in_use() rework Current release - regressions: - openvswitch: allocate struct ovs_pcpu_storage dynamically, static allocation may exhaust module loader limit on smaller systems Previous releases - regressions: - tcp: fix tcp_packet_delayed() for peers with no selective ACK support Previous releases - always broken: - wifi: ath12k: don't activate more links than firmware supports - tcp: make sure sockets open via passive TFO have valid NAPI ID - eth: bnxt_en: update MRU and RSS table of RSS contexts on queue reset, prevent Rx queues from silently hanging after queue reset - NFC: uart: set tty->disc_data only in success path" * tag 'net-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (59 commits) net: airoha: Differentiate hwfd buffer size for QDMA0 and QDMA1 net: airoha: Compute number of descriptors according to reserved memory size tools: ynl: fix mixing ops and notifications on one socket net: atm: fix /proc/net/atm/lec handling net: atm: add lec_mutex mlxbf_gige: return EPROBE_DEFER if PHY IRQ is not available net: airoha: Always check return value from airoha_ppe_foe_get_entry() NFC: nci: uart: Set tty->disc_data only in success path calipso: Fix null-ptr-deref in calipso_req_{set,del}attr(). MAINTAINERS: Remove Shannon Nelson from MAINTAINERS file net: lan743x: fix potential out-of-bounds write in lan743x_ptp_io_event_clock_get() eth: fbnic: avoid double free when failing to DMA-map FW msg tcp: fix passive TFO socket having invalid NAPI ID selftests: net: add test for passive TFO socket NAPI ID selftests: net: add passive TFO test binary selftests: netdevsim: improve lib.sh include in peer.sh tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer Octeontx2-pf: Fix Backpresure configuration net: ftgmac100: select FIXED_PHY net: ethtool: remove duplicate defines for family info ...
2025-06-19tools: ynl: fix mixing ops and notifications on one socketJakub Kicinski
The multi message support loosened the connection between the request and response handling, as we can now submit multiple requests before we start processing responses. Passing the attr set to NlMsgs decoding no longer makes sense (if it ever did), attr set may differ message by messsage. Isolate the part of decoding responsible for attr-set specific interpretation and call it once we identified the correct op. Without this fix performing SET operation on an ethtool socket, while being subscribed to notifications causes: # File "tools/net/ynl/pyynl/lib/ynl.py", line 1096, in _op # Exception| return self._ops(ops)[0] # Exception| ~~~~~~~~~^^^^^ # File "tools/net/ynl/pyynl/lib/ynl.py", line 1040, in _ops # Exception| nms = NlMsgs(reply, attr_space=op.attr_set) # Exception| ^^^^^^^^^^^ The value of op we use on line 1040 is stale, it comes form the previous loop. If a notification comes before a response we will update op to None and the next iteration thru the loop will break with the trace above. Fixes: 6fda63c45fe8 ("tools/net/ynl: fix cli.py --subscribe feature") Fixes: ba8be00f68f5 ("tools/net/ynl: Add multi message support to ynl") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250618171746.1201403-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19selftests: net: use slowwait to make sure IPv6 setup finishedHangbin Liu
Sometimes the vxlan vnifiltering test failed on slow machines due to network setup not finished. e.g. TEST: VM connectivity over vnifiltering vxlan (ipv4 default rdst) [ OK ] TEST: VM connectivity over vnifiltering vxlan (ipv6 default rdst) [FAIL] Let's use slowwait to make sure the connection is finished. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250617105101.433718-3-liuhangbin@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-19selftests: net: use slowwait to stabilize vrf_route_leaking testHangbin Liu
The vrf_route_leaking test occasionally fails due to connectivity issues in our testing environment. A sample failure message shows that the ping check fails intermittently PING 2001:db8:16:2::2 (2001:db8:16:2::2) 56 data bytes --- 2001:db8:16:2::2 ping statistics --- 1 packets transmitted, 0 received, 100% packet loss, time 0ms TEST: Basic IPv6 connectivity [FAIL] This is likely due to insufficient wait time on slower machines. To address this, switch to using slowwait, which provides a longer and more reliable wait for setup completion. Before this change, the test failed 3 out of 10 times. After applying this fix, the test was run 30 times without any failure. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250617105101.433718-2-liuhangbin@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-19selftests/landlock: Add test to check rule tied to covered mount pointMickaël Salaün
This test checks that a rule on a directory used as a mount point does not grant access to the mount covering it. It is a generalization of the bind mount case in layout3_fs.hostfs.release_inodes [1] that tests hidden mount points. Cc: Günther Noack <gnoack@google.com> Cc: Song Liu <song@kernel.org> Cc: Tingmao Wang <m@maowtm.org> Link: https://lore.kernel.org/r/20250606.zo5aekae6Da6@digikod.net [1] Link: https://lore.kernel.org/r/20250606110811.211297-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-06-19selftests/landlock: Fix build of audit_testSong Liu
We are hitting build error on CentOS 9: audit_test.c:232:40: error: ‘O_CLOEXEC’ undeclared (...) Fix this by including fcntl.h. Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20250605214416.1885878-1-song@kernel.org Fixes: 6b4566400a29 ("selftests/landlock: Add PID tests for audit records") Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-06-19selftests/landlock: Fix readlink checkMickaël Salaün
The audit_init_filter_exe() helper incorrectly checks the readlink(2) error because an unsigned integer is used to store the result. Use a signed integer for this check. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/aDbFwyZ_fM-IO7sC@stanley.mountain Fixes: 6a500b22971c ("selftests/landlock: Add tests for audit flags and domain IDs") Reviewed-by: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250528144426.1709063-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-06-19KVM: arm64: selftests: Close the GIC FD in arch_timer_edge_casesZenghui Yu
Close the GIC FD to free the reference it holds to the VM so that we can correctly clean up the VM. This also gets rid of the "KVM: debugfs: duplicate directory 395722-4" warning when running arch_timer_edge_cases. Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> Reviewed-by: Miguel Luis <miguel.luis@oracle.com> Reviewed-by: Sebastian Ott <sebott@redhat.com> Link: https://lore.kernel.org/r/20250608095402.1131-1-yuzenghui@huawei.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-06-18netdevsim: remove udp_ports_sleepStanislav Fomichev
Now that there is only one path in udp_tunnel, there is no need to have udp_ports_sleep knob. Remove it and adjust the test. Cc: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com> Link: https://patch.msgid.link/20250616162117.287806-6-stfomichev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18bpf: Adjust free target to avoid global starvation of LRU mapWillem de Bruijn
BPF_MAP_TYPE_LRU_HASH can recycle most recent elements well before the map is full, due to percpu reservations and force shrink before neighbor stealing. Once a CPU is unable to borrow from the global map, it will once steal one elem from a neighbor and after that each time flush this one element to the global list and immediately recycle it. Batch value LOCAL_FREE_TARGET (128) will exhaust a 10K element map with 79 CPUs. CPU 79 will observe this behavior even while its neighbors hold 78 * 127 + 1 * 15 == 9921 free elements (99%). CPUs need not be active concurrently. The issue can appear with affinity migration, e.g., irqbalance. Each CPU can reserve and then hold onto its 128 elements indefinitely. Avoid global list exhaustion by limiting aggregate percpu caches to half of map size, by adjusting LOCAL_FREE_TARGET based on cpu count. This change has no effect on sufficiently large tables. Similar to LOCAL_NR_SCANS and lru->nr_scans, introduce a map variable lru->free_target. The extra field fits in a hole in struct bpf_lru. The cacheline is already warm where read in the hot path. The field is only accessed with the lru lock held. Tested-by: Anton Protopopov <a.s.protopopov@gmail.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://lore.kernel.org/r/20250618215803.3587312-1-willemdebruijn.kernel@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-18selftests: net: add test for passive TFO socket NAPI IDDavid Wei
Add a test that checks that the NAPI ID of a passive TFO socket is valid i.e. not zero. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-4-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18selftests: net: add passive TFO test binaryDavid Wei
Add a simple passive TFO server and client test binary. This will be used to test the SO_INCOMING_NAPI_ID of passive TFO accepted sockets. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-3-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18selftests: netdevsim: improve lib.sh include in peer.shDavid Wei
Fix the peer.sh test to run from INSTALL_PATH. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-2-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-18pm: cpupower: Fix printing of CORE, CPU fields in cpupower-monitorGautham R. Shenoy
After the commit 0014f65e3df0 ("pm: cpupower: remove hard-coded topology depth values"), "cpupower monitor" output ceased to print the CORE and the CPU fields on a multi-socket platform. The reason for this is that the patch changed the behaviour to break out of the switch-case after printing the PKG details, while prior to the patch, the CORE and the CPU details would also get printed since the "if" condition check would pass for any level whose topology depth was lesser than that of a package. Fix this ensuring all the details below a desired topology depth are printed in the cpupower monitor output. Link: https://lore.kernel.org/r/20250612122355.19629-3-gautham.shenoy@amd.com Fixes: 0014f65e3df0 ("pm: cpupower: remove hard-coded topology depth values") Signed-off-by: Gautham R. Shenoy <gautham.shenoy@amd.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-06-18pm: cpupower: Fix the snapshot-order of tsc,mperf, clock in mperf_stop()Gautham R. Shenoy
In the function mperf_start(), mperf_monitor snapshots the time, tsc and finally the aperf,mperf MSRs. However, this order of snapshotting in is reversed in mperf_stop(). As a result, the C0 residency (which is computed as delta_mperf * 100 / delta_tsc) is under-reported on CPUs that is 100% busy. Fix this by snapshotting time, tsc and then aperf,mperf in mperf_stop() in the same order as in mperf_start(). Link: https://lore.kernel.org/r/20250612122355.19629-2-gautham.shenoy@amd.com Signed-off-by: Gautham R. Shenoy <gautham.shenoy@amd.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-06-18selftests/ptrace: Fix spelling mistake "multible" -> "multiple"Ankit Chauhan
Fix the spelling error from "multible" to "multiple". Link: https://lore.kernel.org/r/20250501060329.126117-1-ankitchauhan2065@gmail.com Signed-off-by: Ankit Chauhan <ankitchauhan2065@gmail.com> Reviewed-by: Brigham Campbell <me@brighamcampbell.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-06-18selftests/bpf: include limits.h needed for PATH_MAX directlyEduard Zingerman
Constant PATH_MAX is used in function unpriv_helpers.c:open_config(). This constant is provided by include file <limits.h>. The dependency was added by commit [1], which does not include <limits.h> directly, relying instead on <limits.h> being included from zlib.h -> zconf.h. As it turns out, this is not the case for all systems, e.g. on Fedora 41 zlib 1.3.1 is used, and there <limits.h> is not included from zconf.h. Hence, there is a compilation error on Fedora 41. [1] commit fc2915bb8bfc ("selftests/bpf: More precise cpu_mitigations state detection") Fixes: fc2915bb8bfc ("selftests/bpf: More precise cpu_mitigations state detection") Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Acked-by: Viktor Malik <vmalik@redhat.com> Link: https://lore.kernel.org/r/20250618093134.3078870-1-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-18selftests: netconsole: Add tests for 'msgid' feature in sysdataGustavo Luiz Duarte
Extend the self-tests to cover the 'msgid' feature in sysdata. Verify that msgid is appended to the message when the feature is enabled and that it is not appended when the feature is disabled. Signed-off-by: Gustavo Luiz Duarte <gustavold@gmail.com> Reviewed-by: Breno Leitao <leitao@debian.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-06-17selftests: forwarding: Add a test for verifying VXLAN MC underlayPetr Machata
Add tests for MC-routing underlay VXLAN traffic. Signed-off-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/eecd2c0fefc754182e74be8e8e65751bf5749c21.1750113335.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17selftests: forwarding: adf_mcd_start(): Allow configuring custom interfacesPetr Machata
Tests may wish to add other interfaces to listen on. Notably locally generated traffic uses dummy interfaces. The multicast daemon needs to know about these so that it allows forming rules that involve these interfaces, and so that net.ipv4.conf.X.mc_forwarding is set for the interfaces. To that end, allow passing in a list of interfaces to configure in addition to all the physical ones. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/2e8d83297985933be4850f2b9f296b3c27110388.1750113335.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17selftests: net: lib: Add ip_link_has_flag()Petr Machata
Add a helper to determine whether a given netdevice has a given flag. Rewrite ip_link_is_up() in terms of the new helper. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/e1eb174a411f9d24735d095984c731d1d4a5a592.1750113335.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17selftests: forwarding: lib: Move smcrouted helpers herePetr Machata
router_multicast.sh has several helpers for work with smcrouted. Extract them to lib.sh so that other selftests can use them as well. Convert the helpers to defer in the process, because that simplifies the interface quite a bit. Therefore have router_multicast.sh invoke defer_scopes_cleanup() in its cleanup() function. Signed-off-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/410411c1a81225ce6e44542289b9c3ec21e5786c.1750113335.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17bpf: Fix key serial argument of bpf_lookup_user_key()James Bottomley
The underlying lookup_user_key() function uses a signed 32 bit integer for key serial numbers because legitimate serial numbers are positive (and > 3) and keyrings are negative. Using a u32 for the keyring in the bpf function doesn't currently cause any conversion problems but will start to trip the signed to unsigned conversion warnings when the kernel enables them, so convert the argument to signed (and update the tests accordingly) before it acquires more users. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Reviewed-by: Roberto Sassu <roberto.sassu@huawei.com> Link: https://lore.kernel.org/r/84cdb0775254d297d75e21f577089f64abdfbd28.camel@HansenPartnership.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-17selftests: devmem: add ipv4 support to chunks testMina Almasry
Add ipv4 support to the recently added chunks tests, which was added as ipv6 only. Signed-off-by: Mina Almasry <almasrymina@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250615203511.591438-3-almasrymina@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17selftests: devmem: remove unused variableMina Almasry
Trivial fix to unused variable. Signed-off-by: Mina Almasry <almasrymina@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250615203511.591438-2-almasrymina@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17selftest: Add selftest for multicast address notificationsYuyang Huang
This commit adds a new kernel selftest to verify RTNLGRP_IPV4_MCADDR and RTNLGRP_IPV6_MCADDR notifications. The test works by adding and removing a dummy interface and then confirming that the system correctly receives join and removal notifications for the 224.0.0.1 and ff02::1 multicast addresses. The test relies on the iproute2 version to be 6.13+. Tested by the following command: $ vng -v --user root --cpus 16 -- \ make -C tools/testing/selftests TARGETS=net TEST_PROGS=rtnetlink_notification.sh \ TEST_GEN_PROGS="" run_tests Cc: Maciej Żenczykowski <maze@google.com> Cc: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: Yuyang Huang <yuyanghuang@google.com> Link: https://patch.msgid.link/20250614053522.623820-1-yuyanghuang@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17selftests: nettest: Fix typo in log and error messages for clarityAlok Tiwari
This patch corrects several logging and error message in nettest.c: - Corrects function name in log messages "setsockopt" -> "getsockopt". - Closes missing parentheses in "setsockopt(IPV6_FREEBIND)". - Replaces misleading error text ("Invalid port") with the correct description ("Invalid prefix length"). - remove Redundant wording like "status from status" and clarifies context in IPC error messages. These changes improve readability and aid in debugging test output. Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250615084822.1344759-1-alok.a.tiwari@oracle.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17vsock/test: Cover more CIDs in transport_uaf testMichal Luczaj
Increase the coverage of test for UAF due to socket unbinding, and losing transport in general. It's a follow up to commit 301a62dfb0d0 ("vsock/test: Add test for UAF due to socket unbinding") and discussion in [1]. The idea remains the same: take an unconnected stream socket with a transport assigned and then attempt to switch the transport by trying (and failing) to connect to some other CID. Now do this iterating over all the well known CIDs (plus one). While at it, drop the redundant synchronization between client and server. Some single-transport setups can't be tested effectively; a warning is issued. Depending on transports available, a variety of splats are possible on unpatched machines. After reverting commit 78dafe1cf3af ("vsock: Orphan socket after transport release") and commit fcdd2242c023 ("vsock: Keep the binding until socket destruction"): BUG: KASAN: slab-use-after-free in __vsock_bind+0x61f/0x720 Read of size 4 at addr ffff88811ff46b54 by task vsock_test/1475 Call Trace: dump_stack_lvl+0x68/0x90 print_report+0x170/0x53d kasan_report+0xc2/0x180 __vsock_bind+0x61f/0x720 vsock_connect+0x727/0xc40 __sys_connect+0xe8/0x100 __x64_sys_connect+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 WARNING: CPU: 0 PID: 1475 at net/vmw_vsock/virtio_transport_common.c:37 virtio_transport_send_pkt_info+0xb2b/0x1160 Call Trace: virtio_transport_connect+0x90/0xb0 vsock_connect+0x782/0xc40 __sys_connect+0xe8/0x100 __x64_sys_connect+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] RIP: 0010:sock_has_perm+0xa7/0x2a0 Call Trace: selinux_socket_connect_helper.isra.0+0xbc/0x450 selinux_socket_connect+0x3b/0x70 security_socket_connect+0x31/0xd0 __sys_connect_file+0x79/0x1f0 __sys_connect+0xe8/0x100 __x64_sys_connect+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 refcount_t: addition on 0; use-after-free. WARNING: CPU: 7 PID: 1518 at lib/refcount.c:25 refcount_warn_saturate+0xdd/0x140 RIP: 0010:refcount_warn_saturate+0xdd/0x140 Call Trace: __vsock_bind+0x65e/0x720 vsock_connect+0x727/0xc40 __sys_connect+0xe8/0x100 __x64_sys_connect+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 refcount_t: underflow; use-after-free. WARNING: CPU: 0 PID: 1475 at lib/refcount.c:28 refcount_warn_saturate+0x12b/0x140 RIP: 0010:refcount_warn_saturate+0x12b/0x140 Call Trace: vsock_remove_bound+0x18f/0x280 __vsock_release+0x371/0x480 vsock_release+0x88/0x120 __sock_release+0xaa/0x260 sock_close+0x14/0x20 __fput+0x35a/0xaa0 task_work_run+0xff/0x1c0 do_exit+0x849/0x24c0 make_task_dead+0xf3/0x110 rewind_stack_and_make_dead+0x16/0x20 [1]: https://lore.kernel.org/netdev/CAGxU2F5zhfWymY8u0hrKksW8PumXAYz-9_qRmW==92oAx1BX3g@mail.gmail.com/ Suggested-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michal Luczaj <mhal@rbox.co> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20250611-vsock-test-inc-cov-v3-3-5834060d9c20@rbox.co Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17vsock/test: Introduce get_transports()Michal Luczaj
Return a bitmap of registered vsock transports. As guesstimated by grepping /proc/kallsyms (CONFIG_KALLSYMS=y) for known symbols of type `struct vsock_transport`, or `struct virtio_transport` in case the vsock_transport is embedded within. Note that the way `enum transport` and `transport_ksyms[]` are defined triggers checkpatch.pl: util.h:11: ERROR: Macros with complex values should be enclosed in parentheses util.h:20: ERROR: Macros with complex values should be enclosed in parentheses util.h:20: WARNING: Argument 'symbol' is not used in function-like macro util.h:28: WARNING: Argument 'name' is not used in function-like macro While commit 15d4734c7a58 ("checkpatch: qualify do-while-0 advice") suggests it is known that the ERRORs heuristics are insufficient, I can not find many other places where preprocessor is used in this checkpatch-unhappy fashion. Notable exception being bcachefs, e.g. fs/bcachefs/alloc_background_format.h. WARNINGs regarding unused macro arguments seem more common, e.g. __ASM_SEL in arch/x86/include/asm/asm.h. In other words, this might be unnecessarily complex. The same can be achieved by just telling human to keep the order: enum transport { TRANSPORT_LOOPBACK = BIT(0), TRANSPORT_VIRTIO = BIT(1), TRANSPORT_VHOST = BIT(2), TRANSPORT_VMCI = BIT(3), TRANSPORT_HYPERV = BIT(4), TRANSPORT_NUM = 5, }; #define KSYM_ENTRY(sym) "d " sym "_transport" /* Keep `enum transport` order */ static const char * const transport_ksyms[] = { KSYM_ENTRY("loopback"), KSYM_ENTRY("virtio"), KSYM_ENTRY("vhost"), KSYM_ENTRY("vmci"), KSYM_ENTRY("vhs"), }; Suggested-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michal Luczaj <mhal@rbox.co> Tested-by: Luigi Leonardi <leonardi@redhat.com> Reviewed-by: Luigi Leonardi <leonardi@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20250611-vsock-test-inc-cov-v3-2-5834060d9c20@rbox.co Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17vsock/test: Introduce vsock_bind_try() helperMichal Luczaj
Create a socket and bind() it. If binding failed, gracefully return an error code while preserving `errno`. Base vsock_bind() on top of it. Suggested-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michal Luczaj <mhal@rbox.co> Reviewed-by: Luigi Leonardi <leonardi@redhat.com> Link: https://patch.msgid.link/20250611-vsock-test-inc-cov-v3-1-5834060d9c20@rbox.co Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17tools headers x86 cpufeatures: Sync with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes from: faad6645e1128ec2 ("x86/cpufeatures: Add CPUID feature bit for the Bus Lock Threshold") 159013a7ca18c271 ("x86/its: Enumerate Indirect Target Selection (ITS) bug") f9f27c4a377a8b45 ("x86/cpufeatures: Add "Allowed SEV Features" Feature") b02dc185ee86836c ("x86/cpufeatures: Add X86_FEATURE_APX") d88bb2ded2efdc38 ("KVM: x86: Advertise support for AMD's PREFETCHI") This causes these perf files to be rebuilt and brings some X86_FEATURE that may be used by: CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o And addresses this perf build warning: Warning: Kernel ABI header differences: diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h Please see tools/include/uapi/README for further details. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Babu Moger <babu.moger@amd.com> Cc: Chang S. Bae <chang.seok.bae@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Kishon Vijay Abraham I <kvijayab@amd.com> Cc: Manali Shukla <manali.shukla@amd.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Cc: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/r/aFBWAI3kHYX5aL9G@x1 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
generated by cgit (git 2.34.1) at 2025-09-13 18:04:15 +0000