- Linux-kselftest-mirror - lists.linaro.org

[PATCH] selftests/x86/lam: Zero out buffer for readlink()

by Binbin Wu

Zero out the buffer for readlink() since readlink() does not append a terminating null byte to the buffer. Fixes: 833c12ce0f430 ("selftests/x86/lam: Add inherit test cases for linear-address masking") Signed-off-by: Binbin Wu <binbin.wu(a)linux.intel.com> --- tools/testing/selftests/x86/lam.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/x86/lam.c b/tools/testing/selftests/x86/lam.c index eb0e46905bf9..9f06942a8e25 100644 --- a/tools/testing/selftests/x86/lam.c +++ b/tools/testing/selftests/x86/lam.c @@ -680,7 +680,7 @@ static int handle_execve(struct testcases *test) perror("Fork failed."); ret = 1; } else if (pid == 0) { - char path[PATH_MAX]; + char path[PATH_MAX] = {0}; /* Set LAM mode in parent process */ if (set_lam(lam) != 0) base-commit: ce9ecca0238b140b88f43859b211c9fdfd8e5b70 -- 2.25.1

2 years

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[PATCH] selftests: bpf: remove unused variables

by zhujun2

These variables are never referenced in the code, just remove them. Signed-off-by: zhujun2 <zhujun2(a)cmss.chinamobile.com> --- tools/testing/selftests/bpf/prog_tests/atomic_bounds.c | 1 - tools/testing/selftests/bpf/prog_tests/kfree_skb.c | 2 -- tools/testing/selftests/bpf/prog_tests/perf_branches.c | 6 +----- .../testing/selftests/bpf/prog_tests/probe_read_user_str.c | 4 ++-- tools/testing/selftests/bpf/prog_tests/test_overhead.c | 4 ++-- tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c | 1 - 6 files changed, 5 insertions(+), 13 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/atomic_bounds.c b/tools/testing/selftests/bpf/prog_tests/atomic_bounds.c index 69bd7853e..4715cde38 100644 --- a/tools/testing/selftests/bpf/prog_tests/atomic_bounds.c +++ b/tools/testing/selftests/bpf/prog_tests/atomic_bounds.c @@ -7,7 +7,6 @@ void test_atomic_bounds(void) { struct atomic_bounds *skel; - __u32 duration = 0; skel = atomic_bounds__open_and_load(); if (CHECK(!skel, "skel_load", "couldn't load program\n")) diff --git a/tools/testing/selftests/bpf/prog_tests/kfree_skb.c b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c index c07991544..b0992a9ed 100644 --- a/tools/testing/selftests/bpf/prog_tests/kfree_skb.c +++ b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c @@ -20,7 +20,6 @@ static void on_sample(void *ctx, int cpu, void *data, __u32 size) { struct meta *meta = (struct meta *)data; struct ipv6_packet *pkt_v6 = data + sizeof(*meta); - int duration = 0; if (CHECK(size != 72 + sizeof(*meta), "check_size", "size %u != %zu\n", size, 72 + sizeof(*meta))) @@ -65,7 +64,6 @@ void serial_test_kfree_skb(void) struct perf_buffer *pb = NULL; int err, prog_fd; bool passed = false; - __u32 duration = 0; const int zero = 0; bool test_ok[2]; diff --git a/tools/testing/selftests/bpf/prog_tests/perf_branches.c b/tools/testing/selftests/bpf/prog_tests/perf_branches.c index bc24f8333..0942b9891 100644 --- a/tools/testing/selftests/bpf/prog_tests/perf_branches.c +++ b/tools/testing/selftests/bpf/prog_tests/perf_branches.c @@ -13,7 +13,6 @@ static void check_good_sample(struct test_perf_branches *skel) int required_size = skel->bss->required_size_out; int written_stack = skel->bss->written_stack_out; int pbe_size = sizeof(struct perf_branch_entry); - int duration = 0; if (CHECK(!skel->bss->valid, "output not valid", "no valid sample from prog")) @@ -43,7 +42,6 @@ static void check_bad_sample(struct test_perf_branches *skel) int written_global = skel->bss->written_global_out; int required_size = skel->bss->required_size_out; int written_stack = skel->bss->written_stack_out; - int duration = 0; if (CHECK(!skel->bss->valid, "output not valid", "no valid sample from prog")) @@ -61,7 +59,7 @@ static void test_perf_branches_common(int perf_fd, void (*cb)(struct test_perf_branches *)) { struct test_perf_branches *skel; - int err, i, duration = 0; + int err, i; bool detached = false; struct bpf_link *link; volatile int j = 0; @@ -102,7 +100,6 @@ static void test_perf_branches_common(int perf_fd, static void test_perf_branches_hw(void) { struct perf_event_attr attr = {0}; - int duration = 0; int pfd; /* create perf event */ @@ -143,7 +140,6 @@ static void test_perf_branches_hw(void) static void test_perf_branches_no_hw(void) { struct perf_event_attr attr = {0}; - int duration = 0; int pfd; /* create perf event */ diff --git a/tools/testing/selftests/bpf/prog_tests/probe_read_user_str.c b/tools/testing/selftests/bpf/prog_tests/probe_read_user_str.c index e41929813..a7c6ad8d6 100644 --- a/tools/testing/selftests/bpf/prog_tests/probe_read_user_str.c +++ b/tools/testing/selftests/bpf/prog_tests/probe_read_user_str.c @@ -9,7 +9,7 @@ static const char str3[] = "mestringblubblubblubblubblub"; static int test_one_str(struct test_probe_read_user_str *skel, const char *str, size_t len) { - int err, duration = 0; + int err; char buf[256]; /* Ensure bytes after string are ones */ @@ -44,7 +44,7 @@ static int test_one_str(struct test_probe_read_user_str *skel, const char *str, void test_probe_read_user_str(void) { struct test_probe_read_user_str *skel; - int err, duration = 0; + int err; skel = test_probe_read_user_str__open_and_load(); if (CHECK(!skel, "test_probe_read_user_str__open_and_load", diff --git a/tools/testing/selftests/bpf/prog_tests/test_overhead.c b/tools/testing/selftests/bpf/prog_tests/test_overhead.c index f27013e38..6161009df 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_overhead.c +++ b/tools/testing/selftests/bpf/prog_tests/test_overhead.c @@ -17,7 +17,7 @@ static __u64 time_get_ns(void) static int test_task_rename(const char *prog) { - int i, fd, duration = 0, err; + int i, fd, err; char buf[] = "test_overhead"; __u64 start_time; @@ -66,7 +66,7 @@ void test_test_overhead(void) struct bpf_program *fentry_prog, *fexit_prog; struct bpf_object *obj; struct bpf_link *link; - int err, duration = 0; + int err; char comm[16] = {}; if (CHECK_FAIL(prctl(PR_GET_NAME, comm, 0L, 0L, 0L))) diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c b/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c index 8b50a992d..5af434353 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c @@ -40,7 +40,6 @@ static bool expect_str(char *buf, size_t size, const char *str, const char *name { static char escbuf_expected[CMD_OUT_BUF_SIZE * 4]; static char escbuf_actual[CMD_OUT_BUF_SIZE * 4]; - static int duration = 0; bool ok; ok = size == strlen(str) && !memcmp(buf, str, size); -- 2.17.1

2 years

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[PATCH v7 0/2] selftests/resctrl: Bug fix and optimization

by Maciej Wieczor-Retman

Write_schemata() uses fprintf() to write a bitmask into a schemata file inside resctrl FS. It checks fprintf() return value but it doesn't check fclose() return value. Error codes from fprintf() such as write errors, are buffered and flushed back to the user only after fclose() is executed which means any invalid bitmask can be written into the schemata file. Rewrite write_schemata() to use syscalls instead of stdio file operations to avoid the buffering. The resctrlfs.c defines functions that interact with the resctrl FS while resctrl_val.c defines functions that perform measurements on the cache. Run_benchmark() fits logically into the second file before resctrl_val() that uses it. Move run_benchmark() from resctrlfs.c to resctrl_val.c and remove redundant part of the kernel-doc comment. Make run_benchmark() static and remove it from the header file. Patch series is based on [1] which is based on [2] which are based on kselftest next branch. Changelog v7: - Add label for non-empty schema error case to Patch 1/2. (Reinette) - Add Reinette's reviewed-by tag to Patch 1/2. Changelog v6: - Align schema_len error checking with typical snprintf format. (Reinette) - Initialize schema string for early return eventuality. (Reinette) Changelog v5: - Add Ilpo's reviewed-by tag to Patch 1/2. - Reword patch messages slightly. - Add error check to schema_len variable. Changelog v4: - Change git signature from Wieczor-Retman Maciej to Maciej Wieczor-Retman. - Rebase onto [1] which is based on [2]. (Reinette) - Add fcntl.h explicitly to provide glibc backward compatibility. (Reinette) Changelog v3: - Use snprintf() return value instead of strlen() in write_schemata(). (Ilpo) - Make run_benchmark() static and remove it from the header file. (Reinette) - Add Ilpo's reviewed-by tag to Patch 2/2. - Patch messages and cover letter rewording. Changelog v2: - Change sprintf() to snprintf() in write_schemata(). - Redo write_schemata() with syscalls instead of stdio functions. - Fix typos and missing dots in patch messages. - Branch printf attribute patch to a separate series. [v1] https://lore.kernel.org/all/cover.1692880423.git.maciej.wieczor-retman@inte… [v2] https://lore.kernel.org/all/cover.1693213468.git.maciej.wieczor-retman@inte… [v3] https://lore.kernel.org/all/cover.1693575451.git.maciej.wieczor-retman@inte… [v4] https://lore.kernel.org/all/cover.1695369120.git.maciej.wieczor-retman@inte… [v5] https://lore.kernel.org/all/cover.1695975327.git.maciej.wieczor-retman@inte… [v6] https://lore.kernel.org/all/cover.1696848653.git.maciej.wieczor-retman@inte… [1] https://lore.kernel.org/all/20231002094813.6633-1-ilpo.jarvinen@linux.intel… [2] https://lore.kernel.org/all/20230904095339.11321-1-ilpo.jarvinen@linux.inte… Maciej Wieczor-Retman (2): selftests/resctrl: Fix schemata write error check selftests/resctrl: Move run_benchmark() to a more fitting file tools/testing/selftests/resctrl/resctrl.h | 1 - tools/testing/selftests/resctrl/resctrl_val.c | 50 ++++++++++ tools/testing/selftests/resctrl/resctrlfs.c | 93 ++++++------------- 3 files changed, 76 insertions(+), 68 deletions(-) -- 2.42.0

2 years

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[PATCH v6 0/2] selftests/resctrl: Bug fix and optimization

by Maciej Wieczor-Retman

Write_schemata() uses fprintf() to write a bitmask into a schemata file inside resctrl FS. It checks fprintf() return value but it doesn't check fclose() return value. Error codes from fprintf() such as write errors, are buffered and flushed back to the user only after fclose() is executed which means any invalid bitmask can be written into the schemata file. Rewrite write_schemata() to use syscalls instead of stdio file operations to avoid the buffering. The resctrlfs.c defines functions that interact with the resctrl FS while resctrl_val.c defines functions that perform measurements on the cache. Run_benchmark() fits logically into the second file before resctrl_val() that uses it. Move run_benchmark() from resctrlfs.c to resctrl_val.c and remove redundant part of the kernel-doc comment. Make run_benchmark() static and remove it from the header file. Patch series is based on [1] which is based on [2] which are based on kselftest next branch. Changelog v6: - Align schema_len error checking with typical snprintf format. (Reinette) - Initialize schema string for early return eventuality. (Reinette) Changelog v5: - Add Ilpo's reviewed-by tag to Patch 1/2. - Reword patch messages slightly. - Add error check to schema_len variable. Changelog v4: - Change git signature from Wieczor-Retman Maciej to Maciej Wieczor-Retman. - Rebase onto [1] which is based on [2]. (Reinette) - Add fcntl.h explicitly to provide glibc backward compatibility. (Reinette) Changelog v3: - Use snprintf() return value instead of strlen() in write_schemata(). (Ilpo) - Make run_benchmark() static and remove it from the header file. (Reinette) - Add Ilpo's reviewed-by tag to Patch 2/2. - Patch messages and cover letter rewording. Changelog v2: - Change sprintf() to snprintf() in write_schemata(). - Redo write_schemata() with syscalls instead of stdio functions. - Fix typos and missing dots in patch messages. - Branch printf attribute patch to a separate series. [v1] https://lore.kernel.org/all/cover.1692880423.git.maciej.wieczor-retman@inte… [v2] https://lore.kernel.org/all/cover.1693213468.git.maciej.wieczor-retman@inte… [v3] https://lore.kernel.org/all/cover.1693575451.git.maciej.wieczor-retman@inte… [v4] https://lore.kernel.org/all/cover.1695369120.git.maciej.wieczor-retman@inte… [v5] https://lore.kernel.org/all/cover.1695975327.git.maciej.wieczor-retman@inte… [1] https://lore.kernel.org/all/20231002094813.6633-1-ilpo.jarvinen@linux.intel… [2] https://lore.kernel.org/all/20230904095339.11321-1-ilpo.jarvinen@linux.inte… Maciej Wieczor-Retman (2): selftests/resctrl: Fix schemata write error check selftests/resctrl: Move run_benchmark() to a more fitting file tools/testing/selftests/resctrl/resctrl.h | 1 - tools/testing/selftests/resctrl/resctrl_val.c | 50 +++++++++++ tools/testing/selftests/resctrl/resctrlfs.c | 88 +++++-------------- 3 files changed, 73 insertions(+), 66 deletions(-) -- 2.42.0

2 years

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kselftest/next kselftest-seccomp: 1 runs, 1 regressions (v6.6-rc2-18-g2531f374f922e)

by kernelci.org bot

kselftest/next kselftest-seccomp: 1 runs, 1 regressions (v6.6-rc2-18-g2531f374f922e) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.6-rc2-18-g253… Test: kselftest-seccomp Tree: kselftest Branch: next Describe: v6.6-rc2-18-g2531f374f922e URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 2531f374f922e77ba51f24d1aa6fa11c7f4c36b8 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/6524e454e2290a6d03efcf87 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… HTML log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023062… * kselftest-seccomp.login: https://kernelci.org/test/case/id/6524e454e2290a6d03efcf88 failing since 354 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1-1-gde3ee3f63400a)

2 years

1
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kselftest/next kselftest-cpufreq: 3 runs, 2 regressions (v6.6-rc2-18-g2531f374f922e)

by kernelci.org bot

kselftest/next kselftest-cpufreq: 3 runs, 2 regressions (v6.6-rc2-18-g2531f374f922e) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 sun50i-a64-pine64-plus | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.6-rc2-18-g253… Test: kselftest-cpufreq Tree: kselftest Branch: next Describe: v6.6-rc2-18-g2531f374f922e URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 2531f374f922e77ba51f24d1aa6fa11c7f4c36b8 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/6524e59941eb7e28c5efcf2e Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… HTML log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023062… * kselftest-cpufreq.login: https://kernelci.org/test/case/id/6524e59941eb7e28c5efcf2f failing since 354 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1-1-gde3ee3f63400a) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+-------------+----------+---------------------+------------ sun50i-a64-pine64-plus | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/6524e5fc49aca55061efcf00 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… HTML log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023062… * kselftest-cpufreq.login: https://kernelci.org/test/case/id/6524e5fc49aca55061efcf01 failing since 345 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1-8-g94fea664ae4ee)

2 years

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kselftest/next kselftest-lib: 2 runs, 2 regressions (v6.6-rc2-18-g2531f374f922e)

by kernelci.org bot

kselftest/next kselftest-lib: 2 runs, 2 regressions (v6.6-rc2-18-g2531f374f922e) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+---------------------+------------ meson-g12b-a311d-khadas-vim3 | arm64 | lab-collabora | gcc-10 | defconfig+kselftest | 1 meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.6-rc2-18-g253… Test: kselftest-lib Tree: kselftest Branch: next Describe: v6.6-rc2-18-g2531f374f922e URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 2531f374f922e77ba51f24d1aa6fa11c7f4c36b8 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+---------------------+------------ meson-g12b-a311d-khadas-vim3 | arm64 | lab-collabora | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/6524e1f5d00dd397beefcf88 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… HTML log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023062… * kselftest-lib.login: https://kernelci.org/test/case/id/6524e1f5d00dd397beefcf89 failing since 357 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+---------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/6524e54af7539cc9a9efcf22 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… HTML log: https://storage.kernelci.org//kselftest/next/v6.6-rc2-18-g2531f374f922e/arm… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023062… * kselftest-lib.login: https://kernelci.org/test/case/id/6524e54af7539cc9a9efcf23 failing since 354 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1-1-gde3ee3f63400a)

2 years

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[PATCH v4 0/8] Add printf attribute to kselftest functions

by Maciej Wieczor-Retman

Kselftest.h declares many variadic functions that can print some formatted message while also executing selftest logic. These declarations don't have any compiler mechanism to verify if passed arguments are valid in comparison with format specifiers used in printf() calls. Attribute addition can make debugging easier, the code more consistent and prevent mismatched or missing variables. Add a __printf() macro that validates types of variables passed to the format string. The macro is similarly used in other tools in the kernel. Add __printf() attributes to function definitions inside kselftest.h that use printing. Adding the __printf() macro exposes some mismatches in format strings across different selftests. Fix the mismatched format specifiers in multiple tests. Series is based on kselftests next branch. Changelog v4: - Fix patch 1/8 subject typo. - Add Reinette's reviewed-by tags. - Rebased onto updated kselftests next branch. Changelog v3: - Changed git signature from Wieczor-Retman Maciej to Maciej Wieczor-Retman. - Added one review tag. - Rebased onto updated kselftests next branch. Changelog v2: - Add review and fixes tags to patches. - Add two patches with mismatch fixes. - Fix missed attribute in selftests/kvm. (Andrew) - Fix previously missed issues in selftests/mm (Ilpo) [v3] https://lore.kernel.org/all/cover.1695373131.git.maciej.wieczor-retman@inte… [v2] https://lore.kernel.org/all/cover.1693829810.git.maciej.wieczor-retman@inte… [v1] https://lore.kernel.org/all/cover.1693216959.git.maciej.wieczor-retman@inte… Maciej Wieczor-Retman (8): selftests: Add printf attribute to kselftest prints selftests/cachestat: Fix print_cachestat format selftests/openat2: Fix wrong format specifier selftests/pidfd: Fix ksft print formats selftests/sigaltstack: Fix wrong format specifier selftests/kvm: Replace attribute with macro selftests/mm: Substitute attribute with a macro selftests/resctrl: Fix wrong format specifier .../selftests/cachestat/test_cachestat.c | 2 +- tools/testing/selftests/kselftest.h | 18 ++++++++++-------- .../testing/selftests/kvm/include/test_util.h | 8 ++++---- tools/testing/selftests/mm/mremap_test.c | 2 +- tools/testing/selftests/mm/pkey-helpers.h | 2 +- tools/testing/selftests/openat2/openat2_test.c | 2 +- .../selftests/pidfd/pidfd_fdinfo_test.c | 2 +- tools/testing/selftests/pidfd/pidfd_test.c | 12 ++++++------ tools/testing/selftests/resctrl/cache.c | 2 +- tools/testing/selftests/sigaltstack/sas.c | 2 +- 10 files changed, 27 insertions(+), 25 deletions(-) base-commit: f1020c687153609f246f3314db5b74821025c185 -- 2.42.0

2 years

3
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kselftest/next build: 6 builds: 0 failed, 6 passed, 1 warning (v6.6-rc2-18-g2531f374f922e)

by kernelci.org bot

kselftest/next build: 6 builds: 0 failed, 6 passed, 1 warning (v6.6-rc2-18-g2531f374f922e) Full Build Summary: https://kernelci.org/build/kselftest/branch/next/kernel/v6.6-rc2-18-g2531f3… Tree: kselftest Branch: next Git Describe: v6.6-rc2-18-g2531f374f922e Git Commit: 2531f374f922e77ba51f24d1aa6fa11c7f4c36b8 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git Built: 4 unique architectures Warnings Detected: arm64: arm: i386: x86_64: x86_64_defconfig+kselftest (clang-16): 1 warning Warnings summary: 1 vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x23: relocation to !ENDBR: .text+0x13950b ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- defconfig+kselftest (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig+kselftest+arm64-chromebook (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig+kselftest (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig+kselftest (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+kselftest (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+kselftest (x86_64, clang-16) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x23: relocation to !ENDBR: .text+0x13950b --- For more info write to <info(a)kernelci.org>

2 years

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[RFC 0/8] iommufd support pasid attach/replace

by Yi Liu

PASID (Process Address Space ID) is a PCIe extension to tag the DMA transactions out of a physical device, and most modern IOMMU hardware have supported PASID granular address translation. So a PASID-capable devices can be attached to multiple hwpts (a.k.a. domains), each attachment is tagged with a PASID. This series first adds a missing iommu API to replace domain for a pasid, then adds iommufd APIs for device drivers to attach/replace/detach pasid to/from hwpt per userspace's request, and adds selftest to validate the iommufd APIs. pasid attach/replace is mandatory on Intel VT-d given the PASID table locates in the physical address space hence must be managed by the kernel, both for supporting vSVA and coming SIOV. But it's optional on ARM/AMD which allow configuring the PASID/CD table either in host physical address space or nested on top of an GPA address space. This series only add VT-d support as the minimal requirement. Complete code can be found in below link: https://github.com/yiliu1765/iommufd/tree/iommufd_pasid Regards, Yi Liu Kevin Tian (1): iommufd: Support attach/replace hwpt per pasid Lu Baolu (2): iommu: Introduce a replace API for device pasid iommu/vt-d: Add set_dev_pasid callback for nested domain Yi Liu (5): iommufd: replace attach_fn with a structure iommufd/selftest: Add set_dev_pasid and remove_dev_pasid in mock iommu iommufd/selftest: Add a helper to get test device iommufd/selftest: Add test ops to test pasid attach/detach iommufd/selftest: Add coverage for iommufd pasid attach/detach drivers/iommu/intel/nested.c | 47 +++++ drivers/iommu/iommu-priv.h | 2 + drivers/iommu/iommu.c | 73 ++++++-- drivers/iommu/iommufd/Makefile | 1 + drivers/iommu/iommufd/device.c | 42 +++-- drivers/iommu/iommufd/iommufd_private.h | 16 ++ drivers/iommu/iommufd/iommufd_test.h | 24 +++ drivers/iommu/iommufd/pasid.c | 152 ++++++++++++++++ drivers/iommu/iommufd/selftest.c | 158 ++++++++++++++-- include/linux/iommufd.h | 6 + tools/testing/selftests/iommu/iommufd.c | 172 ++++++++++++++++++ .../selftests/iommu/iommufd_fail_nth.c | 28 ++- tools/testing/selftests/iommu/iommufd_utils.h | 78 ++++++++ 13 files changed, 756 insertions(+), 43 deletions(-) create mode 100644 drivers/iommu/iommufd/pasid.c -- 2.34.1

2 years

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