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2023-09-16selftest, bpf: enable cpu v4 tests for arm32Puranjay Mohan5-5/+10
Now that all the cpuv4 instructions are supported by the arm32 JIT, enable the selftests for arm32. Signed-off-by: Puranjay Mohan <puranjay12@gmail.com> Link: https://lore.kernel.org/r/20230907230550.1417590-8-puranjay12@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-15tools: ynl: extend netdev sample to dump xdp-rx-metadata-featuresStanislav Fomichev4-2/+30
The tool can be used to verify that everything works end to end. Unrelated updates: - include tools/include/uapi to pick the latest kernel uapi headers - print "xdp-features" and "xdp-rx-metadata-features" so it's clear which bitmask is being dumped Cc: netdev@vger.kernel.org Cc: Willem de Bruijn <willemb@google.com> Signed-off-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/r/20230913171350.369987-4-sdf@google.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-09-15bpf: expose information about supported xdp metadata kfuncStanislav Fomichev1-0/+16
Add new xdp-rx-metadata-features member to netdev netlink which exports a bitmask of supported kfuncs. Most of the patch is autogenerated (headers), the only relevant part is netdev.yaml and the changes in netdev-genl.c to marshal into netlink. Example output on veth: $ ip link add veth0 type veth peer name veth1 # ifndex == 12 $ ./tools/net/ynl/samples/netdev 12 Select ifc ($ifindex; or 0 = dump; or -2 ntf check): 12 veth1[12] xdp-features (23): basic redirect rx-sg xdp-rx-metadata-features (3): timestamp hash xdp-zc-max-segs=0 Cc: netdev@vger.kernel.org Cc: Willem de Bruijn <willemb@google.com> Signed-off-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/r/20230913171350.369987-3-sdf@google.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-09-14selftests/bpf: Skip module_fentry_shadow test when bpf_testmod is not availableArtem Savkov1-0/+5
This test relies on bpf_testmod, so skip it if the module is not available. Fixes: aa3d65de4b900 ("bpf/selftests: Test fentry attachment to shadowed functions") Signed-off-by: Artem Savkov <asavkov@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20230914124928.340701-1-asavkov@redhat.com
2023-09-14selftests/xsk: display command line options with -hMagnus Karlsson2-2/+14
Add the -h option to display all available command line options available for test_xsk.sh and xskxceiver. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-11-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-14selftests/xsk: fail single test instead of all testsMagnus Karlsson1-24/+46
In a number of places at en error, exit_with_error() is called that terminates the whole test suite. This is not always desirable as it would be more logical to only fail that test and then go along with the other ones. So change this in a number of places in which I thought it would be more logical to just fail the test in question. Examples of this are in code that is only used by a single test. Also delete a pointless if-statement in receive_pkts() that has an exit_with_error() in it. It can never occur since the return value is an unsigned and the test is for less than zero. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-10-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-14selftests/xsk: use ksft_print_msg uniformlyMagnus Karlsson1-12/+13
Use ksft_print_msg() instead of printf() and fprintf() in all places as the ksefltests framework is being used. There is only one exception and that is for the list-of-tests print out option, since no tests are run in that case. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-9-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-14selftests/xsk: add option to run single testMagnus Karlsson3-21/+48
Add a command line option to be able to run a single test. This option (-t) takes a number from the list of tests available with the "-l" option. Here are two examples: Run test number 2, the "receive single packet" test in all available modes: ./test_xsk.sh -t 2 Run test number 21, the metadata copy test in skb mode only ./test_xsh.sh -t 21 -m skb Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-8-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-14selftests/xsk: add option that lists all testsMagnus Karlsson3-7/+42
Add a command line option (-l) that lists all the tests. The number before the test will be used in the next commit for specifying a single test to run. Here is an example of the output: Tests: 0: SEND_RECEIVE 1: SEND_RECEIVE_2K_FRAME 2: SEND_RECEIVE_SINGLE_PKT 3: POLL_RX 4: POLL_TX 5: POLL_RXQ_FULL 6: POLL_TXQ_FULL 7: SEND_RECEIVE_UNALIGNED : : Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-7-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-14selftests/xsk: declare test names in structMagnus Karlsson2-171/+57
Declare the test names statically in a struct so that we can refer to them when adding the support to execute a single test in the next commit. Before this patch, the names of them were not declared in a single place which made it not possible to refer to them. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-6-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-14selftests/xsk: move all tests to separate functionsMagnus Karlsson1-55/+115
Prepare for the capability to be able to run a single test by moving all the tests to their own functions. This function can then be called to execute that test in the next commit. Also, the tests named RUN_TO_COMPLETION_* were not named well, so change them to SEND_RECEIVE_* as it is just a basic send and receive test of 4K packets. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-5-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-14selftests/xsk: add option to only run tests in a single modeMagnus Karlsson3-8/+47
Add an option -m on the command line that allows the user to run the tests in a single mode instead of all of them. Valid modes are skb, drv, and zc (zero-copy). An example: To run test suite in drv mode only: ./test_xsk.sh -m drv Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-4-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-14selftests/xsk: add timeout for Tx threadMagnus Karlsson1-4/+22
Add a timeout for the transmission thread. If packets are not completed properly, for some reason, the test harness would previously get stuck forever in a while loop. But with this patch, this timeout will trigger, flag the test as a failure, and continue with the next test. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-3-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-14selftests/xsk: print per packet info in verbose modeMagnus Karlsson1-3/+10
Print info about every packet in verbose mode, both for Tx and Rx. This is useful to have when a test fails or to validate that a test is really doing what it was designed to do. Info on what is supposed to be received and sent is also printed for the custom packet streams since they differ from the base line. Here is an example: Tx addr: 37e0 len: 64 options: 0 pkt_nb: 8 Tx addr: 4000 len: 64 options: 0 pkt_nb: 9 Rx: addr: 100 len: 64 options: 0 pkt_nb: 0 valid: 1 Rx: addr: 1100 len: 64 options: 0 pkt_nb: 1 valid: 1 Rx: addr: 2100 len: 64 options: 0 pkt_nb: 4 valid: 1 Rx: addr: 3100 len: 64 options: 0 pkt_nb: 8 valid: 1 Rx: addr: 4100 len: 64 options: 0 pkt_nb: 9 valid: 1 One pointless verbose print statement is also deleted and another one is made clearer. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230914084900.492-2-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-12selftests/bpf: Add testcases for tailcall infinite loop fixingLeon Hwang3-4/+269
Add 4 test cases to confirm the tailcall infinite loop bug has been fixed. Like tailcall_bpf2bpf cases, do fentry/fexit on the bpf2bpf, and then check the final count result. tools/testing/selftests/bpf/test_progs -t tailcalls 226/13 tailcalls/tailcall_bpf2bpf_fentry:OK 226/14 tailcalls/tailcall_bpf2bpf_fexit:OK 226/15 tailcalls/tailcall_bpf2bpf_fentry_fexit:OK 226/16 tailcalls/tailcall_bpf2bpf_fentry_entry:OK 226 tailcalls:OK Summary: 1/16 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Leon Hwang <hffilwlqm@gmail.com> Link: https://lore.kernel.org/r/20230912150442.2009-4-hffilwlqm@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-12selftests/bpf: Correct map_fd to data_fd in tailcallsLeon Hwang1-16/+16
Get and check data_fd. It should not check map_fd again. Meanwhile, correct some 'return' to 'goto out'. Thank the suggestion from Maciej in "bpf, x64: Fix tailcall infinite loop"[0] discussions. [0] https://lore.kernel.org/bpf/e496aef8-1f80-0f8e-dcdd-25a8c300319a@gmail.com/T/#m7d3b601066ba66400d436b7e7579b2df4a101033 Fixes: 79d49ba048ec ("bpf, testing: Add various tail call test cases") Fixes: 3b0379111197 ("selftests/bpf: Add tailcall_bpf2bpf tests") Fixes: 5e0b0a4c52d3 ("selftests/bpf: Test tail call counting with bpf2bpf and data on stack") Signed-off-by: Leon Hwang <hffilwlqm@gmail.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20230906154256.95461-1-hffilwlqm@gmail.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-09-09bpftool: Fix -Wcast-qual warningDenys Zagorui1-1/+1
This cast was made by purpose for older libbpf where the bpf_object_skeleton field is void * instead of const void * to eliminate a warning (as i understand -Wincompatible-pointer-types-discards-qualifiers) but this cast introduces another warning (-Wcast-qual) for libbpf where data field is const void * It makes sense for bpftool to be in sync with libbpf from kernel sources Signed-off-by: Denys Zagorui <dzagorui@cisco.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20230907090210.968612-1-dzagorui@cisco.com
2023-09-09selftests/bpf: trace_helpers.c: Add a global ksyms initialization mutexRong Tao1-0/+4
As Jirka said [0], we just need to make sure that global ksyms initialization won't race. [0] https://lore.kernel.org/lkml/ZPCbAs3ItjRd8XVh@krava/ Signed-off-by: Rong Tao <rongtao@cestc.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/tencent_5D0A837E219E2CFDCB0495DAD7D5D1204407@qq.com
2023-09-09selftests/bpf: trace_helpers.c: Optimize kallsyms cacheRong Tao4-46/+114
Static ksyms often have problems because the number of symbols exceeds the MAX_SYMS limit. Like changing the MAX_SYMS from 300000 to 400000 in commit e76a014334a6("selftests/bpf: Bump and validate MAX_SYMS") solves the problem somewhat, but it's not the perfect way. This commit uses dynamic memory allocation, which completely solves the problem caused by the limitation of the number of kallsyms. At the same time, add APIs: load_kallsyms_local() ksym_search_local() ksym_get_addr_local() free_kallsyms_local() There are used to solve the problem of selftests/bpf updating kallsyms after attach new symbols during testmod testing. Signed-off-by: Rong Tao <rongtao@cestc.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/bpf/tencent_C9BDA68F9221F21BE4081566A55D66A9700A@qq.com
2023-09-08selftests/bpf: Test preemption between bpf_obj_new() and bpf_obj_drop()Hou Tao2-0/+195
The test case creates 4 threads and then pins these 4 threads in CPU 0. These 4 threads will run different bpf program through bpf_prog_test_run_opts() and these bpf program will use bpf_obj_new() and bpf_obj_drop() to allocate and free local kptrs concurrently. Under preemptible kernel, bpf_obj_new() and bpf_obj_drop() may preempt each other, bpf_obj_new() may return NULL and the test will fail before applying these fixes as shown below: test_preempted_bpf_ma_op:PASS:open_and_load 0 nsec test_preempted_bpf_ma_op:PASS:attach 0 nsec test_preempted_bpf_ma_op:PASS:no test prog 0 nsec test_preempted_bpf_ma_op:PASS:no test prog 0 nsec test_preempted_bpf_ma_op:PASS:no test prog 0 nsec test_preempted_bpf_ma_op:PASS:no test prog 0 nsec test_preempted_bpf_ma_op:PASS:pthread_create 0 nsec test_preempted_bpf_ma_op:PASS:pthread_create 0 nsec test_preempted_bpf_ma_op:PASS:pthread_create 0 nsec test_preempted_bpf_ma_op:PASS:pthread_create 0 nsec test_preempted_bpf_ma_op:PASS:run prog err 0 nsec test_preempted_bpf_ma_op:PASS:run prog err 0 nsec test_preempted_bpf_ma_op:PASS:run prog err 0 nsec test_preempted_bpf_ma_op:PASS:run prog err 0 nsec test_preempted_bpf_ma_op:FAIL:ENOMEM unexpected ENOMEM: got TRUE #168 preempted_bpf_ma_op:FAIL Summary: 0/0 PASSED, 0 SKIPPED, 1 FAILED Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20230901111954.1804721-4-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-08bpf: Mark BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE deprecatedYonghong Song3-2/+22
Now 'BPF_MAP_TYPE_CGRP_STORAGE + local percpu ptr' can cover all BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE functionality and more. So mark BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE deprecated. Also make changes in selftests/bpf/test_bpftool_synctypes.py and selftest libbpf_str to fix otherwise test errors. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230827152837.2003563-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-08selftests/bpf: Add some negative testsYonghong Song2-0/+171
Add a few negative tests for common mistakes with using percpu kptr including: - store to percpu kptr. - type mistach in bpf_kptr_xchg arguments. - sleepable prog with untrusted arg for bpf_this_cpu_ptr(). - bpf_percpu_obj_new && bpf_obj_drop, and bpf_obj_new && bpf_percpu_obj_drop - struct with ptr for bpf_percpu_obj_new - struct with special field (e.g., bpf_spin_lock) for bpf_percpu_obj_new Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230827152832.2002421-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-08selftests/bpf: Add tests for cgrp_local_storage with local percpu kptrYonghong Song2-0/+145
Add a non-sleepable cgrp_local_storage test with percpu kptr. The test does allocation of percpu data, assigning values to percpu data and retrieval of percpu data. The de-allocation of percpu data is done when the map is freed. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230827152827.2001784-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-08selftests/bpf: Remove unnecessary direct read of local percpu kptrYonghong Song1-4/+0
For the second argument of bpf_kptr_xchg(), if the reg type contains MEM_ALLOC and MEM_PERCPU, which means a percpu allocation, after bpf_kptr_xchg(), the argument is marked as MEM_RCU and MEM_PERCPU if in rcu critical section. This way, re-reading from the map value is not needed. Remove it from the percpu_alloc_array.c selftest. Without previous kernel change, the test will fail like below: 0: R1=ctx(off=0,imm=0) R10=fp0 ; int BPF_PROG(test_array_map_10, int a) 0: (b4) w1 = 0 ; R1_w=0 ; int i, index = 0; 1: (63) *(u32 *)(r10 -4) = r1 ; R1_w=0 R10=fp0 fp-8=0000???? 2: (bf) r2 = r10 ; R2_w=fp0 R10=fp0 ; 3: (07) r2 += -4 ; R2_w=fp-4 ; e = bpf_map_lookup_elem(&array, &index); 4: (18) r1 = 0xffff88810e771800 ; R1_w=map_ptr(off=0,ks=4,vs=16,imm=0) 6: (85) call bpf_map_lookup_elem#1 ; R0_w=map_value_or_null(id=1,off=0,ks=4,vs=16,imm=0) 7: (bf) r6 = r0 ; R0_w=map_value_or_null(id=1,off=0,ks=4,vs=16,imm=0) R6_w=map_value_or_null(id=1,off=0,ks=4,vs=16,imm=0) ; if (!e) 8: (15) if r6 == 0x0 goto pc+81 ; R6_w=map_value(off=0,ks=4,vs=16,imm=0) ; bpf_rcu_read_lock(); 9: (85) call bpf_rcu_read_lock#87892 ; ; p = e->pc; 10: (bf) r7 = r6 ; R6=map_value(off=0,ks=4,vs=16,imm=0) R7_w=map_value(off=0,ks=4,vs=16,imm=0) 11: (07) r7 += 8 ; R7_w=map_value(off=8,ks=4,vs=16,imm=0) 12: (79) r6 = *(u64 *)(r6 +8) ; R6_w=percpu_rcu_ptr_or_null_val_t(id=2,off=0,imm=0) ; if (!p) { 13: (55) if r6 != 0x0 goto pc+13 ; R6_w=0 ; p = bpf_percpu_obj_new(struct val_t); 14: (18) r1 = 0x12 ; R1_w=18 16: (b7) r2 = 0 ; R2_w=0 17: (85) call bpf_percpu_obj_new_impl#87883 ; R0_w=percpu_ptr_or_null_val_t(id=4,ref_obj_id=4,off=0,imm=0) refs=4 18: (bf) r6 = r0 ; R0=percpu_ptr_or_null_val_t(id=4,ref_obj_id=4,off=0,imm=0) R6=percpu_ptr_or_null_val_t(id=4,ref_obj_id=4,off=0,imm=0) refs=4 ; if (!p) 19: (15) if r6 == 0x0 goto pc+69 ; R6=percpu_ptr_val_t(ref_obj_id=4,off=0,imm=0) refs=4 ; p1 = bpf_kptr_xchg(&e->pc, p); 20: (bf) r1 = r7 ; R1_w=map_value(off=8,ks=4,vs=16,imm=0) R7=map_value(off=8,ks=4,vs=16,imm=0) refs=4 21: (bf) r2 = r6 ; R2_w=percpu_ptr_val_t(ref_obj_id=4,off=0,imm=0) R6=percpu_ptr_val_t(ref_obj_id=4,off=0,imm=0) refs=4 22: (85) call bpf_kptr_xchg#194 ; R0_w=percpu_ptr_or_null_val_t(id=6,ref_obj_id=6,off=0,imm=0) refs=6 ; if (p1) { 23: (15) if r0 == 0x0 goto pc+3 ; R0_w=percpu_ptr_val_t(ref_obj_id=6,off=0,imm=0) refs=6 ; bpf_percpu_obj_drop(p1); 24: (bf) r1 = r0 ; R0_w=percpu_ptr_val_t(ref_obj_id=6,off=0,imm=0) R1_w=percpu_ptr_val_t(ref_obj_id=6,off=0,imm=0) refs=6 25: (b7) r2 = 0 ; R2_w=0 refs=6 26: (85) call bpf_percpu_obj_drop_impl#87882 ; ; v = bpf_this_cpu_ptr(p); 27: (bf) r1 = r6 ; R1_w=scalar(id=7) R6=scalar(id=7) 28: (85) call bpf_this_cpu_ptr#154 R1 type=scalar expected=percpu_ptr_, percpu_rcu_ptr_, percpu_trusted_ptr_ The R1 which gets its value from R6 is a scalar. But before insn 22, R6 is R6=percpu_ptr_val_t(ref_obj_id=4,off=0,imm=0) Its type is changed to a scalar at insn 22 without previous patch. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230827152821.2001129-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-08selftests/bpf: Add tests for array map with local percpu kptrYonghong Song2-0/+265
Add non-sleepable and sleepable tests with percpu kptr. For non-sleepable test, four programs are executed in the order of: 1. allocate percpu data. 2. assign values to percpu data. 3. retrieve percpu data. 4. de-allocate percpu data. The sleepable prog tried to exercise all above 4 steps in a single prog. Also for sleepable prog, rcu_read_lock is needed to protect direct percpu ptr access (from map value) and following bpf_this_cpu_ptr() and bpf_per_cpu_ptr() helpers. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230827152811.2000125-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-08selftests/bpf: Add bpf_percpu_obj_{new,drop}() macro in bpf_experimental.hYonghong Song1-0/+31
The new macro bpf_percpu_obj_{new/drop}() is very similar to bpf_obj_{new,drop}() as they both take a type as the argument. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230827152805.1999417-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-08libbpf: Add __percpu_kptr macro definitionYonghong Song1-0/+1
Add __percpu_kptr macro definition in bpf_helpers.h. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230827152800.1998492-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-08selftests/bpf: Update error message in negative linked_list testYonghong Song1-2/+2
Some error messages are changed due to the addition of percpu kptr support. Fix linked_list test with changed error messages. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230827152754.1997769-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-08libbpf: Add basic BTF sanity validationAndrii Nakryiko2-2/+162
Implement a simple and straightforward BTF sanity check when parsing BTF data. Right now it's very basic and just validates that all the string offsets and type IDs are within valid range. For FUNC we also check that it points to FUNC_PROTO kinds. Even with such simple checks it fixes a bunch of crashes found by OSS fuzzer ([0]-[5]) and will allow fuzzer to make further progress. Some other invariants will be checked in follow up patches (like ensuring there is no infinite type loops), but this seems like a good start already. Adding FUNC -> FUNC_PROTO check revealed that one of selftests has a problem with FUNC pointing to VAR instead, so fix it up in the same commit. [0] https://github.com/libbpf/libbpf/issues/482 [1] https://github.com/libbpf/libbpf/issues/483 [2] https://github.com/libbpf/libbpf/issues/485 [3] https://github.com/libbpf/libbpf/issues/613 [4] https://github.com/libbpf/libbpf/issues/618 [5] https://github.com/libbpf/libbpf/issues/619 Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Alan Maguire <alan.maguire@oracle.com> Reviewed-by: Song Liu <song@kernel.org> Closes: https://github.com/libbpf/libbpf/issues/617 Link: https://lore.kernel.org/bpf/20230825202152.1813394-1-andrii@kernel.org
2023-09-08Merge tag 'net-6.6-rc1' of ↵Linus Torvalds10-5/+339
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking updates from Jakub Kicinski: "Including fixes from netfilter and bpf. Current release - regressions: - eth: stmmac: fix failure to probe without MAC interface specified Current release - new code bugs: - docs: netlink: fix missing classic_netlink doc reference Previous releases - regressions: - deal with integer overflows in kmalloc_reserve() - use sk_forward_alloc_get() in sk_get_meminfo() - bpf_sk_storage: fix the missing uncharge in sk_omem_alloc - fib: avoid warn splat in flow dissector after packet mangling - skb_segment: call zero copy functions before using skbuff frags - eth: sfc: check for zero length in EF10 RX prefix Previous releases - always broken: - af_unix: fix msg_controllen test in scm_pidfd_recv() for MSG_CMSG_COMPAT - xsk: fix xsk_build_skb() dereferencing possible ERR_PTR() - netfilter: - nft_exthdr: fix non-linear header modification - xt_u32, xt_sctp: validate user space input - nftables: exthdr: fix 4-byte stack OOB write - nfnetlink_osf: avoid OOB read - one more fix for the garbage collection work from last release - igmp: limit igmpv3_newpack() packet size to IP_MAX_MTU - bpf, sockmap: fix preempt_rt splat when using raw_spin_lock_t - handshake: fix null-deref in handshake_nl_done_doit() - ip: ignore dst hint for multipath routes to ensure packets are hashed across the nexthops - phy: micrel: - correct bit assignments for cable test errata - disable EEE according to the KSZ9477 errata Misc: - docs/bpf: document compile-once-run-everywhere (CO-RE) relocations - Revert "net: macsec: preserve ingress frame ordering", it appears to have been developed against an older kernel, problem doesn't exist upstream" * tag 'net-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (95 commits) net: enetc: distinguish error from valid pointers in enetc_fixup_clear_rss_rfs() Revert "net: team: do not use dynamic lockdep key" net: hns3: remove GSO partial feature bit net: hns3: fix the port information display when sfp is absent net: hns3: fix invalid mutex between tc qdisc and dcb ets command issue net: hns3: fix debugfs concurrency issue between kfree buffer and read net: hns3: fix byte order conversion issue in hclge_dbg_fd_tcam_read() net: hns3: Support query tx timeout threshold by debugfs net: hns3: fix tx timeout issue net: phy: Provide Module 4 KSZ9477 errata (DS80000754C) netfilter: nf_tables: Unbreak audit log reset netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction netfilter: nf_tables: uapi: Describe NFTA_RULE_CHAIN_ID netfilter: nfnetlink_osf: avoid OOB read netfilter: nftables: exthdr: fix 4-byte stack OOB write selftests/bpf: Check bpf_sk_storage has uncharged sk_omem_alloc bpf: bpf_sk_storage: Fix the missing uncharge in sk_omem_alloc bpf: bpf_sk_storage: Fix invalid wait context lockdep report s390/bpf: Pass through tail call counter in trampolines ...
2023-09-07Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds62-960/+2925
Pull kvm updates from Paolo Bonzini: "ARM: - Clean up vCPU targets, always returning generic v8 as the preferred target - Trap forwarding infrastructure for nested virtualization (used for traps that are taken from an L2 guest and are needed by the L1 hypervisor) - FEAT_TLBIRANGE support to only invalidate specific ranges of addresses when collapsing a table PTE to a block PTE. This avoids that the guest refills the TLBs again for addresses that aren't covered by the table PTE. - Fix vPMU issues related to handling of PMUver. - Don't unnecessary align non-stack allocations in the EL2 VA space - Drop HCR_VIRT_EXCP_MASK, which was never used... - Don't use smp_processor_id() in kvm_arch_vcpu_load(), but the cpu parameter instead - Drop redundant call to kvm_set_pfn_accessed() in user_mem_abort() - Remove prototypes without implementations RISC-V: - Zba, Zbs, Zicntr, Zicsr, Zifencei, and Zihpm support for guest - Added ONE_REG interface for SATP mode - Added ONE_REG interface to enable/disable multiple ISA extensions - Improved error codes returned by ONE_REG interfaces - Added KVM_GET_REG_LIST ioctl() implementation for KVM RISC-V - Added get-reg-list selftest for KVM RISC-V s390: - PV crypto passthrough enablement (Tony, Steffen, Viktor, Janosch) Allows a PV guest to use crypto cards. Card access is governed by the firmware and once a crypto queue is "bound" to a PV VM every other entity (PV or not) looses access until it is not bound anymore. Enablement is done via flags when creating the PV VM. - Guest debug fixes (Ilya) x86: - Clean up KVM's handling of Intel architectural events - Intel bugfixes - Add support for SEV-ES DebugSwap, allowing SEV-ES guests to use debug registers and generate/handle #DBs - Clean up LBR virtualization code - Fix a bug where KVM fails to set the target pCPU during an IRTE update - Fix fatal bugs in SEV-ES intrahost migration - Fix a bug where the recent (architecturally correct) change to reinject #BP and skip INT3 broke SEV guests (can't decode INT3 to skip it) - Retry APIC map recalculation if a vCPU is added/enabled - Overhaul emergency reboot code to bring SVM up to par with VMX, tie the "emergency disabling" behavior to KVM actually being loaded, and move all of the logic within KVM - Fix user triggerable WARNs in SVM where KVM incorrectly assumes the TSC ratio MSR cannot diverge from the default when TSC scaling is disabled up related code - Add a framework to allow "caching" feature flags so that KVM can check if the guest can use a feature without needing to search guest CPUID - Rip out the ancient MMU_DEBUG crud and replace the useful bits with CONFIG_KVM_PROVE_MMU - Fix KVM's handling of !visible guest roots to avoid premature triple fault injection - Overhaul KVM's page-track APIs, and KVMGT's usage, to reduce the API surface that is needed by external users (currently only KVMGT), and fix a variety of issues in the process Generic: - Wrap kvm_{gfn,hva}_range.pte in a union to allow mmu_notifier events to pass action specific data without needing to constantly update the main handlers. - Drop unused function declarations Selftests: - Add testcases to x86's sync_regs_test for detecting KVM TOCTOU bugs - Add support for printf() in guest code and covert all guest asserts to use printf-based reporting - Clean up the PMU event filter test and add new testcases - Include x86 selftests in the KVM x86 MAINTAINERS entry" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (279 commits) KVM: x86/mmu: Include mmu.h in spte.h KVM: x86/mmu: Use dummy root, backed by zero page, for !visible guest roots KVM: x86/mmu: Disallow guest from using !visible slots for page tables KVM: x86/mmu: Harden TDP MMU iteration against root w/o shadow page KVM: x86/mmu: Harden new PGD against roots without shadow pages KVM: x86/mmu: Add helper to convert root hpa to shadow page drm/i915/gvt: Drop final dependencies on KVM internal details KVM: x86/mmu: Handle KVM bookkeeping in page-track APIs, not callers KVM: x86/mmu: Drop @slot param from exported/external page-track APIs KVM: x86/mmu: Bug the VM if write-tracking is used but not enabled KVM: x86/mmu: Assert that correct locks are held for page write-tracking KVM: x86/mmu: Rename page-track APIs to reflect the new reality KVM: x86/mmu: Drop infrastructure for multiple page-track modes KVM: x86/mmu: Use page-track notifiers iff there are external users KVM: x86/mmu: Move KVM-only page-track declarations to internal header KVM: x86: Remove the unused page-track hook track_flush_slot() drm/i915/gvt: switch from ->track_flush_slot() to ->track_remove_region() KVM: x86: Add a new page-track hook to handle memslot deletion drm/i915/gvt: Don't bother removing write-protection on to-be-deleted slot KVM: x86: Reject memslot MOVE operations if KVMGT is attached ...
2023-09-06selftests/bpf: Check bpf_sk_storage has uncharged sk_omem_allocMartin KaFai Lau3-0/+118
This patch checks the sk_omem_alloc has been uncharged by bpf_sk_storage during the __sk_destruct. Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20230901231129.578493-4-martin.lau@linux.dev
2023-09-05tools/mm: fix undefined reference to pthread_onceXie XiuQi1-2/+2
Commit 97d5f2e9ee12 ("tools api fs: More thread safety for global filesystem variables") introduces pthread_once, so the libpthread should be added at link time, or we'll meet the following compile error when 'make -C tools/mm': gcc -Wall -Wextra -I../lib/ -o page-types page-types.c ../lib/api/libapi.a ~/linux/tools/lib/api/fs/fs.c:146: undefined reference to `pthread_once' ~/linux/tools/lib/api/fs/fs.c:147: undefined reference to `pthread_once' ~/linux/tools/lib/api/fs/fs.c:148: undefined reference to `pthread_once' ~/linux/tools/lib/api/fs/fs.c:149: undefined reference to `pthread_once' ~/linux/tools/lib/api/fs/fs.c:150: undefined reference to `pthread_once' /usr/bin/ld: ../lib/api/libapi.a(libapi-in.o):~/linux/tools/lib/api/fs/fs.c:151: more undefined references to `pthread_once' follow collect2: error: ld returned 1 exit status make: *** [Makefile:22: page-types] Error 1 Link: https://lkml.kernel.org/r/20230831034205.2376653-1-xiexiuqi@huaweicloud.com Fixes: 97d5f2e9ee12 ("tools api fs: More thread safety for global filesystem variables") Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-09-05Merge tag 'pm-6.6-rc1-2' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These fix cpufreq core and the pcc cpufreq driver, add per-policy boost support to cpufreq and add Georgian translation Makefile LANGUAGES in cpupower. Specifics: - Add Georgian translation to Makefile LANGUAGES in cpupower (Shuah Khan). - Add support for per-policy performance boost to cpufreq (Jie Zhan). - Fix assorted issues in the cpufreq core, common governor code and in the pcc cpufreq driver (Liao Chang)" * tag 'pm-6.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: Support per-policy performance boost cpufreq: pcc: Fix the potentinal scheduling delays in target_index() cpufreq: governor: Free dbs_data directly when gov->init() fails cpufreq: Fix the race condition while updating the transition_task of policy cpufreq: Avoid printing kernel addresses in cpufreq_resume() cpupower: Add Georgian translation to Makefile LANGUAGES
2023-09-02Merge tag 'probes-v6.6' of ↵Linus Torvalds2-1/+29
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probes updates from Masami Hiramatsu: - kprobes: use struct_size() for variable size kretprobe_instance data structure. - eprobe: Simplify trace_eprobe list iteration. - probe events: Data structure field access support on BTF argument. - Update BTF argument support on the functions in the kernel loadable modules (only loaded modules are supported). - Move generic BTF access function (search function prototype and get function parameters) to a separated file. - Add a function to search a member of data structure in BTF. - Support accessing BTF data structure member from probe args by C-like arrow('->') and dot('.') operators. e.g. 't sched_switch next=next->pid vruntime=next->se.vruntime' - Support accessing BTF data structure member from $retval. e.g. 'f getname_flags%return +0($retval->name):string' - Add string type checking if BTF type info is available. This will reject if user specify ":string" type for non "char pointer" type. - Automatically assume the fprobe event as a function return event if $retval is used. - selftests/ftrace: Add BTF data field access test cases. - Documentation: Update fprobe event example with BTF data field. * tag 'probes-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: Documentation: tracing: Update fprobe event example with BTF field selftests/ftrace: Add BTF fields access testcases tracing/fprobe-event: Assume fprobe is a return event by $retval tracing/probes: Add string type check with BTF tracing/probes: Support BTF field access from $retval tracing/probes: Support BTF based data structure field access tracing/probes: Add a function to search a member of a struct/union tracing/probes: Move finding func-proto API and getting func-param API to trace_btf tracing/probes: Support BTF argument on module functions tracing/eprobe: Iterate trace_eprobe directly kernel: kprobes: Use struct_size()
2023-09-02Merge tag 'x86-urgent-2023-09-02' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 selftest fix from Ingo Molnar: "Fix the __NR_map_shadow_stack syscall-renumbering fallout in the x86 self-test code. [ Arguably the existing code was unnecessarily fragile, and tooling should have picked up the new syscall number, and a wider fix is being worked on - but meanwhile, let's not have the old syscall number in the kernel tree. ]" * tag 'x86-urgent-2023-09-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/x86: Update map_shadow_stack syscall nr
2023-09-02Merge tag 'trace-v6.6' of ↵Linus Torvalds2-4/+14
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing updates from Steven Rostedt: "User visible changes: - Added a way to easier filter with cpumasks: # echo 'cpumask & CPUS{17-42}' > /sys/kernel/tracing/events/ipi_send_cpumask/filter - Show actual size of ring buffer after modifying the ring buffer size via buffer_size_kb. Currently it just returns what was written, but the actual size rounds up to the sub buffer size. Show that real size instead. Major changes: - Added "eventfs". This is the code that handles the inodes and dentries of tracefs/events directory. As there are thousands of events, and each event has several inodes and dentries that currently exist even when tracing is never used, they take up precious memory. Instead, eventfs will allocate the inodes and dentries in a JIT way (similar to what procfs does). There is now metadata that handles the events and subdirectories, and will create the inodes and dentries when they are used. Note, I also have patches that remove the subdirectory meta data, but will wait till the next merge window before applying them. It's a little more complex, and I want to make sure the dynamic code works properly before adding more complexity, making it easier to revert if need be. Minor changes: - Optimization to user event list traversal - Remove intermediate permission of tracefs files (note the intermediate permission removes all access to the files so it is not a security concern, but just a clean up) - Add the complex fix to FORTIFY_SOURCE to the kernel stack event logic - Other minor cleanups" * tag 'trace-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (29 commits) tracefs: Remove kerneldoc from struct eventfs_file tracefs: Avoid changing i_mode to a temp value tracing/user_events: Optimize safe list traversals ftrace: Remove empty declaration ftrace_enable_daemon() and ftrace_disable_daemon() tracing: Remove unused function declarations tracing/filters: Document cpumask filtering tracing/filters: Further optimise scalar vs cpumask comparison tracing/filters: Optimise CPU vs cpumask filtering when the user mask is a single CPU tracing/filters: Optimise scalar vs cpumask filtering when the user mask is a single CPU tracing/filters: Optimise cpumask vs cpumask filtering when user mask is a single CPU tracing/filters: Enable filtering the CPU common field by a cpumask tracing/filters: Enable filtering a scalar field by a cpumask tracing/filters: Enable filtering a cpumask field by another cpumask tracing/filters: Dynamically allocate filter_pred.regex test: ftrace: Fix kprobe test for eventfs eventfs: Move tracing/events to eventfs eventfs: Implement removal of meta data from eventfs eventfs: Implement functions to create files and dirs when accessed eventfs: Implement eventfs lookup, read, open functions eventfs: Implement eventfs file add functions ...
2023-09-02Merge tag 'wq-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds2-7/+191
Pull workqueue updates from Tejun Heo: - Unbound workqueues now support more flexible affinity scopes. The default behavior is to soft-affine according to last level cache boundaries. A work item queued from a given LLC is executed by a worker running on the same LLC but the worker may be moved across cache boundaries as the scheduler sees fit. On machines which multiple L3 caches, which are becoming more popular along with chiplet designs, this improves cache locality while not harming work conservation too much. Unbound workqueues are now also a lot more flexible in terms of execution affinity. Differeing levels of affinity scopes are supported and both the default and per-workqueue affinity settings can be modified dynamically. This should help working around amny of sub-optimal behaviors observed recently with asymmetric ARM CPUs. This involved signficant restructuring of workqueue code. Nothing was reported yet but there's some risk of subtle regressions. Should keep an eye out. - Rescuer workers now has more identifiable comms. - workqueue.unbound_cpus added so that CPUs which can be used by workqueue can be constrained early during boot. - Now that all the in-tree users have been flushed out, trigger warning if system-wide workqueues are flushed. * tag 'wq-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (31 commits) workqueue: fix data race with the pwq->stats[] increment workqueue: Rename rescuer kworker workqueue: Make default affinity_scope dynamically updatable workqueue: Add "Affinity Scopes and Performance" section to documentation workqueue: Implement non-strict affinity scope for unbound workqueues workqueue: Add workqueue_attrs->__pod_cpumask workqueue: Factor out need_more_worker() check and worker wake-up workqueue: Factor out work to worker assignment and collision handling workqueue: Add multiple affinity scopes and interface to select them workqueue: Modularize wq_pod_type initialization workqueue: Add tools/workqueue/wq_dump.py which prints out workqueue configuration workqueue: Generalize unbound CPU pods workqueue: Factor out clearing of workqueue-only attrs fields workqueue: Factor out actual cpumask calculation to reduce subtlety in wq_update_pod() workqueue: Initialize unbound CPU pods later in the boot workqueue: Move wq_pod_init() below workqueue_init() workqueue: Rename NUMA related names to use pod instead workqueue: Rename workqueue_attrs->no_numa to ->ordered workqueue: Make unbound workqueues to use per-cpu pool_workqueues workqueue: Call wq_update_unbound_numa() on all CPUs in NUMA node on CPU hotplug ...
2023-09-02Merge tag 'cgroup-for-6.6' of ↵Linus Torvalds7-2/+284
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - Per-cpu cpu usage stats are now tracked This currently isn't printed out in the cgroupfs interface and can only be accessed through e.g. BPF. Should decide on a not-too-ugly way to show per-cpu stats in cgroupfs - cpuset received some cleanups and prepatory patches for the pending cpus.exclusive patchset which will allow cpuset partitions to be created below non-partition parents, which should ease the management of partition cpusets - A lot of code and documentation cleanup patches - tools/testing/selftests/cgroup/test_cpuset.c added * tag 'cgroup-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (32 commits) cgroup: Avoid -Wstringop-overflow warnings cgroup:namespace: Remove unused cgroup_namespaces_init() cgroup/rstat: Record the cumulative per-cpu time of cgroup and its descendants cgroup: clean up if condition in cgroup_pidlist_start() cgroup: fix obsolete function name in cgroup_destroy_locked() Documentation: cgroup-v2.rst: Correct number of stats entries cgroup: fix obsolete function name above css_free_rwork_fn() cgroup/cpuset: fix kernel-doc cgroup: clean up printk() cgroup: fix obsolete comment above cgroup_create() docs: cgroup-v1: fix typo docs: cgroup-v1: correct the term of Page Cache organization in inode cgroup/misc: Store atomic64_t reads to u64 cgroup/misc: Change counters to be explicit 64bit types cgroup/misc: update struct members descriptions cgroup: remove cgrp->kn check in css_populate_dir() cgroup: fix obsolete function name cgroup: use cached local variable parent in for loop cgroup: remove obsolete comment above struct cgroupstats cgroup: put cgroup_tryget_css() inside CONFIG_CGROUP_SCHED ...
2023-09-02selftests/x86: Update map_shadow_stack syscall nrRick Edgecombe1-1/+1
Shadow stack's selftest utilizes the map_shadow_stack syscall. The syscall is new with the feature, but the selftests cannot automatically find the headers for the kernel source tree they are located in. This resulted in the shadow stack test failing to build until the brand new headers were installed. To avoid this, a copy of the new uapi defines needed by the test were included in the selftest (see link for discussion). When shadow stack was merged the syscall number was changed, but the copy in the selftest was not updated. So update the copy of the syscall number define used when the required headers are not installed, to have the final syscall number from the merge. Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/lkml/Y%2FijdXoTAATt0+Ct@zn.tnic/ Link: https://lore.kernel.org/r/20230901181652.2583861-1-rick.p.edgecombe@intel.com Reviewed-by: Sohil Mehta <sohil.mehta@intel.com> Fixes: df57721f9a63 ("Merge tag 'x86_shstk_for_6.6-rc1' of [...]")
2023-09-01Merge tag 'char-misc-6.6-rc1' of ↵Linus Torvalds1-4/+13
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem changes for 6.6-rc1. Stuff all over the place here, lots of driver updates and changes and new additions. Short summary is: - new IIO drivers and updates - Interconnect driver updates - fpga driver updates and additions - fsi driver updates - mei driver updates - coresight driver updates - nvmem driver updates - counter driver updates - lots of smaller misc and char driver updates and additions All of these have been in linux-next for a long time with no reported problems" * tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (267 commits) nvmem: core: Notify when a new layout is registered nvmem: core: Do not open-code existing functions nvmem: core: Return NULL when no nvmem layout is found nvmem: core: Create all cells before adding the nvmem device nvmem: u-boot-env:: Replace zero-length array with DECLARE_FLEX_ARRAY() helper nvmem: sec-qfprom: Add Qualcomm secure QFPROM support dt-bindings: nvmem: sec-qfprom: Add bindings for secure qfprom dt-bindings: nvmem: Add compatible for QCM2290 nvmem: Kconfig: Fix typo "drive" -> "driver" nvmem: Explicitly include correct DT includes nvmem: add new NXP QorIQ eFuse driver dt-bindings: nvmem: Add t1023-sfp efuse support dt-bindings: nvmem: qfprom: Add compatible for MSM8226 nvmem: uniphier: Use devm_platform_get_and_ioremap_resource() nvmem: qfprom: do some cleanup nvmem: stm32-romem: Use devm_platform_get_and_ioremap_resource() nvmem: rockchip-efuse: Use devm_platform_get_and_ioremap_resource() nvmem: meson-mx-efuse: Convert to devm_platform_ioremap_resource() nvmem: lpc18xx_otp: Convert to devm_platform_ioremap_resource() nvmem: brcm_nvram: Use devm_platform_get_and_ioremap_resource() ...
2023-09-01Merge tag 'platform-drivers-x86-v6.6-1' of ↵Linus Torvalds3-4/+51
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: - hp-bioscfg: New firmware-attributes driver for changing BIOS settings from within Linux - asus-wmi: Add charger mode, middle fan and eGPU settings support - ideapad: Support keyboard backlight control on more models - mellanox: Support for new models - sel-3350: New LED and power-supply driver for this industrial mainboard - simatic-ipc: Add RTC battery monitor and various new models support - miscellaneous other cleanups / fixes * tag 'platform-drivers-x86-v6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (101 commits) platform/x86: asus-wmi: corrections to egpu safety check platform/x86: mlx-platform: Add dependency on PCI to Kconfig platform/x86: ideapad-laptop: Add support for keyboard backlights using KBLC ACPI symbol platform/x86/amd/pmc: Fix build error with randconfig platform/x86/amd/pmf: Fix a missing cleanup path watchdog: simatic: Use idiomatic selection of P2SB platform/x86: p2sb: Make the Kconfig symbol hidden Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces platform: mellanox: nvsw-sn2201: change fans i2c busses. platform: mellanox: mlxreg-hotplug: Extend condition for notification callback processing platform: mellanox: Add initial support for PCIe based programming logic device platform: mellanox: mlx-platform: Get interrupt line through ACPI platform: mellanox: mlx-platform: Introduce ACPI init flow platform: mellanox: mlx-platform: Prepare driver to allow probing through ACPI infrastructure platform: mellanox: mlx-platform: Add reset callback platform: mellanox: Cosmetic changes platform: mellanox: mlx-platform: Modify power off callback platform: mellanox: mlx-platform: add support for additional CPLD platform: mellanox: mlx-platform: Add reset cause attribute platform: mellanox: mlx-platform: Modify health and power hotplug action ...
2023-09-01Merge tag 'riscv-for-linus-6.6-mw1' of ↵Linus Torvalds9-3/+234
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - Support for the new "riscv,isa-extensions" and "riscv,isa-base" device tree interfaces for probing extensions - Support for userspace access to the performance counters - Support for more instructions in kprobes - Crash kernels can be allocated above 4GiB - Support for KCFI - Support for ELFs in !MMU configurations - ARCH_KMALLOC_MINALIGN has been reduced to 8 - mmap() defaults to sv48-sized addresses, with longer addresses hidden behind a hint (similar to Arm and Intel) - Also various fixes and cleanups * tag 'riscv-for-linus-6.6-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (51 commits) lib/Kconfig.debug: Restrict DEBUG_INFO_SPLIT for RISC-V riscv: support PREEMPT_DYNAMIC with static keys riscv: Move create_tmp_mapping() to init sections riscv: Mark KASAN tmp* page tables variables as static riscv: mm: use bitmap_zero() API riscv: enable DEBUG_FORCE_FUNCTION_ALIGN_64B riscv: remove redundant mv instructions RISC-V: mm: Document mmap changes RISC-V: mm: Update pgtable comment documentation RISC-V: mm: Add tests for RISC-V mm RISC-V: mm: Restrict address space for sv39,sv48,sv57 riscv: enable DMA_BOUNCE_UNALIGNED_KMALLOC for !dma_coherent riscv: allow kmalloc() caches aligned to the smallest value riscv: support the elf-fdpic binfmt loader binfmt_elf_fdpic: support 64-bit systems riscv: Allow CONFIG_CFI_CLANG to be selected riscv/purgatory: Disable CFI riscv: Add CFI error handling riscv: Add ftrace_stub_graph riscv: Add types to indirectly called assembly functions ...
2023-09-01selftests/bpf: Fix a CI failure caused by vsock writeXu Kuohai2-0/+33
While commit 90f0074cd9f9 ("selftests/bpf: fix a CI failure caused by vsock sockmap test") fixes a receive failure of vsock sockmap test, there is still a write failure: Error: #211/79 sockmap_listen/sockmap VSOCK test_vsock_redir Error: #211/79 sockmap_listen/sockmap VSOCK test_vsock_redir ./test_progs:vsock_unix_redir_connectible:1501: egress: write: Transport endpoint is not connected vsock_unix_redir_connectible:FAIL:1501 ./test_progs:vsock_unix_redir_connectible:1501: ingress: write: Transport endpoint is not connected vsock_unix_redir_connectible:FAIL:1501 ./test_progs:vsock_unix_redir_connectible:1501: egress: write: Transport endpoint is not connected vsock_unix_redir_connectible:FAIL:1501 The reason is that the vsock connection in the test is set to ESTABLISHED state by function virtio_transport_recv_pkt, which is executed in a workqueue thread, so when the user space test thread runs before the workqueue thread, this problem occurs. To fix it, before writing the connection, wait for it to be connected. Fixes: d61bd8c1fd02 ("selftests/bpf: add a test case for vsock sockmap") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20230901031037.3314007-1-xukuohai@huaweicloud.com
2023-09-01selftests: fib_tests: Add multipath list receive testsSriram Yagnaraman1-1/+154
The test uses perf stat to count the number of fib:fib_table_lookup tracepoint hits for IPv4 and the number of fib6:fib6_table_lookup for IPv6. The measured count is checked to be within 5% of the total number of packets sent via veth1. Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-31selftests/bpf: Include build flavors for install targetBjörn Töpel1-0/+12
When using the "install" or targets depending on install, e.g. "gen_tar", the BPF machine flavors weren't included. A command like: | make ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- O=/workspace/kbuild \ | HOSTCC=gcc FORMAT= SKIP_TARGETS="arm64 ia64 powerpc sparc64 x86 sgx" \ | -C tools/testing/selftests gen_tar would not include bpf/no_alu32, bpf/cpuv4, or bpf/bpf-gcc. Include the BPF machine flavors for "install" make target. Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20230831162954.111485-1-bjorn@kernel.org
2023-08-31Merge tag 'powerpc-6.6-1' of ↵Linus Torvalds25-602/+423
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Add HOTPLUG_SMT support (/sys/devices/system/cpu/smt) and honour the configured SMT state when hotplugging CPUs into the system - Combine final TLB flush and lazy TLB mm shootdown IPIs when using the Radix MMU to avoid a broadcast TLBIE flush on exit - Drop the exclusion between ptrace/perf watchpoints, and drop the now unused associated arch hooks - Add support for the "nohlt" command line option to disable CPU idle - Add support for -fpatchable-function-entry for ftrace, with GCC >= 13.1 - Rework memory block size determination, and support 256MB size on systems with GPUs that have hotpluggable memory - Various other small features and fixes Thanks to Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira Rajeev, Benjamin Gray, Christophe Leroy, Frederic Barrat, Gautam Menghani, Geoff Levand, Hari Bathini, Immad Mir, Jialin Zhang, Joel Stanley, Jordan Niethe, Justin Stitt, Kajol Jain, Kees Cook, Krzysztof Kozlowski, Laurent Dufour, Liang He, Linus Walleij, Mahesh Salgaonkar, Masahiro Yamada, Michal Suchanek, Nageswara R Sastry, Nathan Chancellor, Nathan Lynch, Naveen N Rao, Nicholas Piggin, Nick Desaulniers, Omar Sandoval, Randy Dunlap, Reza Arbab, Rob Herring, Russell Currey, Sourabh Jain, Thomas Gleixner, Trevor Woerner, Uwe Kleine-König, Vaibhav Jain, Xiongfeng Wang, Yuan Tan, Zhang Rui, and Zheng Zengkai. * tag 'powerpc-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (135 commits) macintosh/ams: linux/platform_device.h is needed powerpc/xmon: Reapply "Relax frame size for clang" powerpc/mm/book3s64: Use 256M as the upper limit with coherent device memory attached powerpc/mm/book3s64: Fix build error with SPARSEMEM disabled powerpc/iommu: Fix notifiers being shared by PCI and VIO buses powerpc/mpc5xxx: Add missing fwnode_handle_put() powerpc/config: Disable SLAB_DEBUG_ON in skiroot powerpc/pseries: Remove unused hcall tracing instruction powerpc/pseries: Fix hcall tracepoints with JUMP_LABEL=n powerpc: dts: add missing space before { powerpc/eeh: Use pci_dev_id() to simplify the code powerpc/64s: Move CPU -mtune options into Kconfig powerpc/powermac: Fix unused function warning powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT powerpc: Don't include lppaca.h in paca.h powerpc/pseries: Move hcall_vphn() prototype into vphn.h powerpc/pseries: Move VPHN constants into vphn.h cxl: Drop unused detach_spa() powerpc: Drop zalloc_maybe_bootmem() powerpc/powernv: Use struct opal_prd_msg in more places ...
2023-08-31Merge tag 'x86_shstk_for_6.6-rc1' of ↵Linus Torvalds2-1/+885
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 shadow stack support from Dave Hansen: "This is the long awaited x86 shadow stack support, part of Intel's Control-flow Enforcement Technology (CET). CET consists of two related security features: shadow stacks and indirect branch tracking. This series implements just the shadow stack part of this feature, and just for userspace. The main use case for shadow stack is providing protection against return oriented programming attacks. It works by maintaining a secondary (shadow) stack using a special memory type that has protections against modification. When executing a CALL instruction, the processor pushes the return address to both the normal stack and to the special permission shadow stack. Upon RET, the processor pops the shadow stack copy and compares it to the normal stack copy. For more information, refer to the links below for the earlier versions of this patch set" Link: https://lore.kernel.org/lkml/20220130211838.8382-1-rick.p.edgecombe@intel.com/ Link: https://lore.kernel.org/lkml/20230613001108.3040476-1-rick.p.edgecombe@intel.com/ * tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (47 commits) x86/shstk: Change order of __user in type x86/ibt: Convert IBT selftest to asm x86/shstk: Don't retry vm_munmap() on -EINTR x86/kbuild: Fix Documentation/ reference x86/shstk: Move arch detail comment out of core mm x86/shstk: Add ARCH_SHSTK_STATUS x86/shstk: Add ARCH_SHSTK_UNLOCK x86: Add PTRACE interface for shadow stack selftests/x86: Add shadow stack test x86/cpufeatures: Enable CET CR4 bit for shadow stack x86/shstk: Wire in shadow stack interface x86: Expose thread features in /proc/$PID/status x86/shstk: Support WRSS for userspace x86/shstk: Introduce map_shadow_stack syscall x86/shstk: Check that signal frame is shadow stack mem x86/shstk: Check that SSP is aligned on sigreturn x86/shstk: Handle signals for shadow stack x86/shstk: Introduce routines modifying shstk x86/shstk: Handle thread shadow stack x86/shstk: Add user-mode shadow stack support ...
2023-08-31Merge tag 'kvm-x86-svm-6.6' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini1-0/+1
KVM: x86: SVM changes for 6.6: - Add support for SEV-ES DebugSwap, i.e. allow SEV-ES guests to use debug registers and generate/handle #DBs - Clean up LBR virtualization code - Fix a bug where KVM fails to set the target pCPU during an IRTE update - Fix fatal bugs in SEV-ES intrahost migration - Fix a bug where the recent (architecturally correct) change to reinject #BP and skip INT3 broke SEV guests (can't decode INT3 to skip it)
2023-08-31Merge tag 'kvm-riscv-6.6-1' of https://github.com/kvm-riscv/linux into HEADPaolo Bonzini8-495/+1386
KVM/riscv changes for 6.6 - Zba, Zbs, Zicntr, Zicsr, Zifencei, and Zihpm support for Guest/VM - Added ONE_REG interface for SATP mode - Added ONE_REG interface to enable/disable multiple ISA extensions - Improved error codes returned by ONE_REG interfaces - Added KVM_GET_REG_LIST ioctl() implementation for KVM RISC-V - Added get-reg-list selftest for KVM RISC-V
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-24 19:07:34 +0300