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2022-01-03Merge 5.16-rc8 into char-misc-nextGreg Kroah-Hartman
We need the fixes in here as well for testing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-02Merge tag 'perf-tools-fixes-for-v5.16-2022-01-02' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools fixes from Arnaldo Carvalho de Melo: - Fix TUI exit screen refresh race condition in 'perf top'. - Fix parsing of Intel PT VM time correlation arguments. - Honour CPU filtering command line request of a script's switch events in 'perf script'. - Fix printing of switch events in Intel PT python script. - Fix duplicate alias events list printing in 'perf list', noticed on heterogeneous arm64 systems. - Fix return value of ids__new(), users expect NULL for failure, not ERR_PTR(-ENOMEM). * tag 'perf-tools-fixes-for-v5.16-2022-01-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: perf top: Fix TUI exit screen refresh race condition perf pmu: Fix alias events list perf scripts python: intel-pt-events.py: Fix printing of switch events perf script: Fix CPU filtering of a script's switch events perf intel-pt: Fix parsing of VM time correlation arguments perf expr: Fix return value of ids__new()
2022-01-02perf top: Fix TUI exit screen refresh race conditionyaowenbin
When the following command is executed several times, a coredump file is generated. $ timeout -k 9 5 perf top -e task-clock ******* ******* ******* 0.01% [kernel] [k] __do_softirq 0.01% libpthread-2.28.so [.] __pthread_mutex_lock 0.01% [kernel] [k] __ll_sc_atomic64_sub_return double free or corruption (!prev) perf top --sort comm,dso timeout: the monitored command dumped core When we terminate "perf top" using sending signal method, SLsmg_reset_smg() called. SLsmg_reset_smg() resets the SLsmg screen management routines by freeing all memory allocated while it was active. However SLsmg_reinit_smg() maybe be called by another thread. SLsmg_reinit_smg() will free the same memory accessed by SLsmg_reset_smg(), thus it results in a double free. SLsmg_reinit_smg() is called already protected by ui__lock, so we fix the problem by adding pthread_mutex_trylock of ui__lock when calling SLsmg_reset_smg(). Signed-off-by: Wenyu Liu <liuwenyu7@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: wuxu.wu@huawei.com Link: http://lore.kernel.org/lkml/a91e3943-7ddc-f5c0-a7f5-360f073c20e6@huawei.com Signed-off-by: Hewenliang <hewenliang4@huawei.com> Signed-off-by: yaowenbin <yaowenbin1@huawei.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-01-02perf pmu: Fix alias events listJohn Garry
Commit 0e0ae8742207c3b4 ("perf list: Display hybrid PMU events with cpu type") changes the event list for uncore PMUs or arm64 heterogeneous CPU systems, such that duplicate aliases are incorrectly listed per PMU (which they should not be), like: # perf list ... unc_cbo_cache_lookup.any_es [Unit: uncore_cbox L3 Lookup any request that access cache and found line in E or S-state] unc_cbo_cache_lookup.any_es [Unit: uncore_cbox L3 Lookup any request that access cache and found line in E or S-state] unc_cbo_cache_lookup.any_i [Unit: uncore_cbox L3 Lookup any request that access cache and found line in I-state] unc_cbo_cache_lookup.any_i [Unit: uncore_cbox L3 Lookup any request that access cache and found line in I-state] ... Notice how the events are listed twice. The named commit changed how we remove duplicate events, in that events for different PMUs are not treated as duplicates. I suppose this is to handle how "Each hybrid pmu event has been assigned with a pmu name". Fix PMU alias listing by restoring behaviour to remove duplicates for non-hybrid PMUs. Fixes: 0e0ae8742207c3b4 ("perf list: Display hybrid PMU events with cpu type") Signed-off-by: John Garry <john.garry@huawei.com> Tested-by: Zhengjun Xing <zhengjun.xing@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/1640103090-140490-1-git-send-email-john.garry@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-31selftests: net: udpgro_fwd.sh: explicitly checking the available ping featureJianguo Wu
As Paolo pointed out, the result of ping IPv6 address depends on the running distro. So explicitly checking the available ping feature, as e.g. do the bareudp.sh self-tests. Fixes: 8b3170e07539 ("selftests: net: using ping6 for IPv6 in udpgro_fwd.sh") Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn> Link: https://lore.kernel.org/r/825ee22b-4245-dbf7-d2f7-a230770d6e21@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-31Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski
Daniel Borkmann says: ==================== pull-request: bpf 2021-12-31 We've added 2 non-merge commits during the last 14 day(s) which contain a total of 2 files changed, 3 insertions(+), 3 deletions(-). The main changes are: 1) Revert of an earlier attempt to fix xsk's poll() behavior where it turned out that the fix for a rare problem made it much worse in general, from Magnus Karlsson. (Fyi, Magnus mentioned that a proper fix is coming early next year, so the revert is mainly to avoid slipping the behavior into 5.16.) 2) Minor misc spell fix in BPF selftests, from Colin Ian King. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf, selftests: Fix spelling mistake "tained" -> "tainted" Revert "xsk: Do not sleep in poll() when need_wakeup set" ==================== Link: https://lore.kernel.org/r/20211231160050.16105-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-31selftests/kexec: update searching for the KconfigMimi Zohar
First check /lib/modules/`uname -r`/config, before using the IKCONFIG. In addition, the configs.ko might be compressed. Fix the configs.ko name. Reviewed-by: Petr Vorel <pvorel@suse.cz> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2021-12-31selftest/kexec: fix "ignored null byte in input" warningMimi Zohar
Instead of assigning the string to a variable, which might contain a null character, redirect the output and grep for the string directly. Reviewed-by: Petr Vorel <pvorel@suse.cz> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2021-12-31userfaultfd/selftests: fix hugetlb area allocationsMike Kravetz
Currently, userfaultfd selftest for hugetlb as run from run_vmtests.sh or any environment where there are 'just enough' hugetlb pages will always fail with: testing events (fork, remap, remove): ERROR: UFFDIO_COPY error: -12 (errno=12, line=616) The ENOMEM error code implies there are not enough hugetlb pages. However, there are free hugetlb pages but they are all reserved. There is a basic problem with the way the test allocates hugetlb pages which has existed since the test was originally written. Due to the way 'cleanup' was done between different phases of the test, this issue was masked until recently. The issue was uncovered by commit 8ba6e8640844 ("userfaultfd/selftests: reinitialize test context in each test"). For the hugetlb test, src and dst areas are allocated as PRIVATE mappings of a hugetlb file. This means that at mmap time, pages are reserved for the src and dst areas. At the start of event testing (and other tests) the src area is populated which results in allocation of huge pages to fill the area and consumption of reserves associated with the area. Then, a child is forked to fault in the dst area. Note that the dst area was allocated in the parent and hence the parent owns the reserves associated with the mapping. The child has normal access to the dst area, but can not use the reserves created/owned by the parent. Thus, if there are no other huge pages available allocation of a page for the dst by the child will fail. Fix by not creating reserves for the dst area. In this way the child can use free (non-reserved) pages. Also, MAP_PRIVATE of a file only makes sense if you are interested in the contents of the file before making a COW copy. The test does not do this. So, just use MAP_ANONYMOUS | MAP_HUGETLB to create an anonymous hugetlb mapping. There is no need to create a hugetlb file in the non-shared case. Link: https://lkml.kernel.org/r/20211217172919.7861-1-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: Peter Xu <peterx@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-12-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Alexei Starovoitov says: ==================== pull-request: bpf-next 2021-12-30 The following pull-request contains BPF updates for your *net-next* tree. We've added 72 non-merge commits during the last 20 day(s) which contain a total of 223 files changed, 3510 insertions(+), 1591 deletions(-). The main changes are: 1) Automatic setrlimit in libbpf when bpf is memcg's in the kernel, from Andrii. 2) Beautify and de-verbose verifier logs, from Christy. 3) Composable verifier types, from Hao. 4) bpf_strncmp helper, from Hou. 5) bpf.h header dependency cleanup, from Jakub. 6) get_func_[arg|ret|arg_cnt] helpers, from Jiri. 7) Sleepable local storage, from KP. 8) Extend kfunc with PTR_TO_CTX, PTR_TO_MEM argument support, from Kumar. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c commit 077cdda764c7 ("net/mlx5e: TC, Fix memory leak with rules with internal port") commit 31108d142f36 ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'") commit 4390c6edc0fb ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'") https://lore.kernel.org/all/20211229065352.30178-1-saeed@kernel.org/ net/smc/smc_wr.c commit 49dc9013e34b ("net/smc: Use the bitmap API when applicable") commit 349d43127dac ("net/smc: fix kernel panic caused by race of smc_sock") bitmap_zero()/memset() is removed by the fix Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-30selftests: net: using ping6 for IPv6 in udpgro_fwd.shJianguo Wu
udpgro_fwd.sh output following message: ping: 2001:db8:1::100: Address family for hostname not supported Using ping6 when pinging IPv6 addresses. Fixes: a062260a9d5f ("selftests: net: add UDP GRO forwarding self-tests") Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-29bpf/selftests: Update local storage selftest for sleepable programsKP Singh
Remove the spin lock logic and update the selftests to use sleepable programs to use a mix of sleepable and non-sleepable programs. It's more useful to test the sleepable programs since the tests don't really need spinlocks. Signed-off-by: KP Singh <kpsingh@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20211224152916.1550677-3-kpsingh@kernel.org
2021-12-29selftests: net: Fix a typo in udpgro_fwd.shJianguo Wu
$rvs -> $rcv Fixes: a062260a9d5f ("selftests: net: add UDP GRO forwarding self-tests") Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn> Link: https://lore.kernel.org/r/d247d7c8-a03a-0abf-3c71-4006a051d133@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-29selftests/net: udpgso_bench_tx: fix dst ip argumentwujianguo
udpgso_bench_tx call setup_sockaddr() for dest address before parsing all arguments, if we specify "-p ${dst_port}" after "-D ${dst_ip}", then ${dst_port} will be ignored, and using default cfg_port 8000. This will cause test case "multiple GRO socks" failed in udpgro.sh. Setup sockaddr after parsing all arguments. Fixes: 3a687bef148d ("selftests: udp gso benchmark") Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/ff620d9f-5b52-06ab-5286-44b945453002@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-28libbpf: Improve LINUX_VERSION_CODE detectionAndrii Nakryiko
Ubuntu reports incorrect kernel version through uname(), which on older kernels leads to kprobe BPF programs failing to load due to the version check mismatch. Accommodate Ubuntu's quirks with LINUX_VERSION_CODE by using Ubuntu-specific /proc/version_code to fetch major/minor/patch versions to form LINUX_VERSION_CODE. While at it, consolide libbpf's kernel version detection code between libbpf.c and libbpf_probes.c. [0] Closes: https://github.com/libbpf/libbpf/issues/421 Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20211222231003.2334940-1-andrii@kernel.org
2021-12-28libbpf: Use 100-character limit to make bpf_tracing.h easier to readAndrii Nakryiko
Improve bpf_tracing.h's macro definition readability by keeping them single-line and better aligned. This makes it easier to follow all those variadic patterns. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20211222213924.1869758-2-andrii@kernel.org
2021-12-28libbpf: Normalize PT_REGS_xxx() macro definitionsAndrii Nakryiko
Refactor PT_REGS macros definitions in bpf_tracing.h to avoid excessive duplication. We currently have classic PT_REGS_xxx() and CO-RE-enabled PT_REGS_xxx_CORE(). We are about to add also _SYSCALL variants, which would require excessive copying of all the per-architecture definitions. Instead, separate architecture-specific field/register names from the final macro that utilize them. That way for upcoming _SYSCALL variants we'll be able to just define x86_64 exception and otherwise have one common set of _SYSCALL macro definitions common for all architectures. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/bpf/20211222213924.1869758-1-andrii@kernel.org
2021-12-28perf scripts python: intel-pt-events.py: Fix printing of switch eventsAdrian Hunter
The intel-pt-events.py script displays only the last of consecutive switch statements but that may not be the last switch event for the CPU. Fix by keeping a dictionary of last context switch keyed by CPU, and make it possible to see all switch events by adding option --all-switch-events. Fixes: a92bf335fd82eeee ("perf scripts python: intel-pt-events.py: Add branches to script") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211215080636.149562-4-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-28perf script: Fix CPU filtering of a script's switch eventsAdrian Hunter
CPU filtering was not being applied to a script's switch events. Fixes: 5bf83c29a0ad2e78 ("perf script: Add scripting operation process_switch()") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211215080636.149562-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-28perf intel-pt: Fix parsing of VM time correlation argumentsAdrian Hunter
Parser did not take ':' into account. Example: Before: $ perf record -e intel_pt//u uname Linux [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.026 MB perf.data ] $ perf inject -i perf.data --vm-time-correlation="dry-run 123" $ perf inject -i perf.data --vm-time-correlation="dry-run 123:456" Failed to parse VM Time Correlation options 0x620 [0x98]: failed to process type: 70 [Invalid argument] $ After: $ perf inject -i perf.data --vm-time-correlation="dry-run 123:456" $ Fixes: e3ff42bdebcfeb5f ("perf intel-pt: Parse VM Time Correlation options and set up decoding") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211215080636.149562-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-28perf expr: Fix return value of ids__new()Miaoqian Lin
callers of ids__new() function only do NULL checking for the return value. ids__new() calles hashmap__new(), which may return ERR_PTR(-ENOMEM). Instead of changing the checking one-by-one return NULL instead of ERR_PTR(-ENOMEM) to keep it consistent. Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: German Gomez <german.gomez@arm.com> Tested-by: German Gomez <german.gomez@arm.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20211214011030.20200-1-linmq006@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-28KVM: selftests: aarch64: Add test for restoring active IRQsRicardo Koller
Add a test that restores multiple IRQs in active state, it does it by writing into ISACTIVER from the guest and using KVM ioctls. This test tries to emulate what would happen during a live migration: restore active IRQs. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-18-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Add ISPENDR write tests in vgic_irqRicardo Koller
Add injection tests that use writing into the ISPENDR register (to mark IRQs as pending). This is typically used by migration code. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-17-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Add tests for IRQFD in vgic_irqRicardo Koller
Add injection tests for the KVM_IRQFD ioctl into vgic_irq. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-16-ricarkol@google.com
2021-12-28KVM: selftests: Add IRQ GSI routing library functionsRicardo Koller
Add an architecture independent wrapper function for creating and writing IRQ GSI routing tables. Also add a function to add irqchip entries. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-15-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Add test_inject_fail to vgic_irqRicardo Koller
Add tests for failed injections to vgic_irq. This tests that KVM can handle bogus IRQ numbers. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-14-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Add tests for LEVEL_INFO in vgic_irqRicardo Koller
Add injection tests for the LEVEL_INFO ioctl (level-sensitive specific) into vgic_irq. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-13-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Level-sensitive interrupts tests in vgic_irqRicardo Koller
Add a cmdline arg for using level-sensitive interrupts (vs the default edge-triggered). Then move the handler into a generic handler function that takes the type of interrupt (level vs. edge) as an arg. When handling line-sensitive interrupts it sets the line to low after acknowledging the IRQ. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-12-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Add preemption tests in vgic_irqRicardo Koller
Add tests for IRQ preemption (having more than one activated IRQ at the same time). This test injects multiple concurrent IRQs and handles them without handling the actual exceptions. This is done by masking interrupts for the whole test. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-11-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Cmdline arg to set EOI mode in vgic_irqRicardo Koller
Add a new cmdline arg to set the EOI mode for all vgic_irq tests. This specifies whether a write to EOIR will deactivate IRQs or not. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-10-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Cmdline arg to set number of IRQs in vgic_irq testRicardo Koller
Add the ability to specify the number of vIRQs exposed by KVM (arg defaults to 64). Then extend the KVM_IRQ_LINE test by injecting all available SPIs at once (specified by the nr-irqs arg). As a bonus, inject all SGIs at once as well. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-9-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Abstract the injection functions in vgic_irqRicardo Koller
Build an abstraction around the injection functions, so the preparation and checking around the actual injection can be shared between tests. All functions are stored as pointers in arrays of kvm_inject_desc's which include the pointer and what kind of interrupts they can inject. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-8-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Add vgic_irq to test userspace IRQ injectionRicardo Koller
Add a new KVM selftest, vgic_irq, for testing userspace IRQ injection. This particular test injects an SPI using KVM_IRQ_LINE on GICv3 and verifies that the IRQ is handled in the guest. The next commits will add more types of IRQs and different modes. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-7-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Add vGIC library functions to deal with vIRQ stateRicardo Koller
Add a set of library functions for userspace code in selftests to deal with vIRQ state (i.e., ioctl wrappers). Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-6-ricarkol@google.com
2021-12-28KVM: selftests: Add kvm_irq_line library functionRicardo Koller
Add an architecture independent wrapper function for the KVM_IRQ_LINE ioctl. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-5-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Add GICv3 register accessor library functionsRicardo Koller
Add library functions for accessing GICv3 registers: DIR, PMR, CTLR, ISACTIVER, ISPENDR. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-4-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Add function for accessing GICv3 dist and redist ↵Ricardo Koller
registers Add a generic library function for reading and writing GICv3 distributor and redistributor registers. Then adapt some functions to use it; more will come and use it in the next commit. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-3-ricarkol@google.com
2021-12-28KVM: selftests: aarch64: Move gic_v3.h to shared headersRicardo Koller
Move gic_v3.h to the shared headers location. There are some definitions that will be used in the vgic-irq test. Signed-off-by: Ricardo Koller <ricarkol@google.com> Acked-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211109023906.1091208-2-ricarkol@google.com
2021-12-28KVM: selftests: arm64: Add support for various modes with 16kB page sizeMarc Zyngier
The 16kB page size is not a popular choice, due to only a few CPUs actually implementing support for it. However, it can lead to some interesting performance improvements given the right uarch choices. Add support for this page size for various PA/VA combinations. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Andrew Jones <drjones@redhat.com> Link: https://lore.kernel.org/r/20211227124809.1335409-7-maz@kernel.org
2021-12-28KVM: selftests: arm64: Add support for VM_MODE_P36V48_{4K,64K}Marc Zyngier
Some of the arm64 systems out there have an IPA space that is positively tiny. Nonetheless, they make great KVM hosts. Add support for 36bit IPA support with 4kB pages, which makes some of the fruity machines happy. Whilst we're at it, add support for 64kB pages as well, though these boxes have no support for it. Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211227124809.1335409-6-maz@kernel.org
2021-12-28KVM: selftests: arm64: Rework TCR_EL1 configurationMarc Zyngier
The current way we initialise TCR_EL1 is a bit cumbersome, as we mix setting TG0 and IPS in the same swtch statement. Split it into two statements (one for the base granule size, and another for the IPA size), allowing new modes to be added in a more elegant way. No functional change intended. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Andrew Jones <drjones@redhat.com> Link: https://lore.kernel.org/r/20211227124809.1335409-5-maz@kernel.org
2021-12-28KVM: selftests: arm64: Check for supported page sizesMarc Zyngier
Just as arm64 implemenations don't necessary support all IPA ranges, they don't all support the same page sizes either. Fun. Create a dummy VM to snapshot the page sizes supported by the host, and filter the supported modes. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Andrew Jones <drjones@redhat.com> Link: https://lore.kernel.org/r/20211227124809.1335409-4-maz@kernel.org
2021-12-28KVM: selftests: arm64: Introduce a variable default IPA sizeMarc Zyngier
Contrary to popular belief, there is no such thing as a default IPA size on arm64. Anything goes, and implementations are the usual Wild West. The selftest infrastructure default to 40bit IPA, which obviously doesn't work for some systems out there. Turn VM_MODE_DEFAULT from a constant into a variable, and let guest_modes_append_default() populate it, depending on what the HW can do. In order to preserve the current behaviour, we still pick 40bits IPA as the default if it is available, and the largest supported IPA space otherwise. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Andrew Jones <drjones@redhat.com> Link: https://lore.kernel.org/r/20211227124809.1335409-3-maz@kernel.org
2021-12-28KVM: selftests: arm64: Initialise default guest mode at test startup timeMarc Zyngier
As we are going to add support for a variable default mode on arm64, let's make sure it is setup first by using a constructor that gets called before the actual test runs. Suggested-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Andrew Jones <drjones@redhat.com> Link: https://lore.kernel.org/r/20211227124809.1335409-2-maz@kernel.org
2021-12-27ACPI: tools: Introduce utility for firmware updates/telemetryChen Yu
Introduce a user space tool to make use of the interface exposed by Platform Firmware Runtime Update and Telemetry drivers. It can be used for firmware code injection, driver updates and to retrieve platform firmware telemetry data. Tested-by: Hongyu Ning <hongyu.ning@intel.com> Signed-off-by: Chen Yu <yu.c.chen@intel.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-12-27Merge branches 'thermal-tools' and 'thermal-int340x'Rafael J. Wysocki
Merge tmon fix and int340x driver improvement for 5.17-rc1. * thermal-tools: thermal: tools: tmon: remove unneeded local variable * thermal-int340x: thermal: int340x: Use struct_group() for memcpy() region
2021-12-25selftests: mptcp: Remove the deprecated config NFT_COUNTERMa Xinjian
NFT_COUNTER was removed since 390ad4295aa ("netfilter: nf_tables: make counter support built-in") LKP/0Day will check if all configs listing under selftests are able to be enabled properly. For the missing configs, it will report something like: LKP WARN miss config CONFIG_NFT_COUNTER= of net/mptcp/config - it's not reasonable to keep the deprecated configs. - configs under kselftests are recommended by corresponding tests. So if some configs are missing, it will impact the testing results Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Ma Xinjian <xinjianx.ma@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-25kselftest: alsa: Validate values read from enumerationsMark Brown
Enumerations should return a value between 0 and items-1, check that this is the case. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://lore.kernel.org/r/20211217130213.3893415-3-broonie@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-12-25kselftest: alsa: Factor out check that values meet constraintsMark Brown
To simplify the code a bit and allow future reuse factor the checks that values we read are valid out of test_ctl_get_value() into a separate function which can be reused later. As part of this extend the test to check all the values for the control, not just the first one. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://lore.kernel.org/r/20211217130213.3893415-2-broonie@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
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