- Kernel - mailweb.openeuler.org

[openeuler:openEuler-1.0-LTS 1225/1225] drivers/cpuidle/cpuidle-haltpoll.o: warning: objtool: missing symbol for section .init.text
by kernel test robot 05 Nov '24

05 Nov '24

Hi Marcelo, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 0c1156b86933300fc91692f839a7f6e0676f55d7 commit: 8104395ba98a81c8cb1ddd245482baca0d57d163 [1225/1225] add cpuidle-haltpoll driver config: x86_64-buildonly-randconfig-002-20241028 (https://download.01.org/0day-ci/archive/20241105/202411051849.OUFvUDzd-lkp@…) compiler: clang version 19.1.2 (https://github.com/llvm/llvm-project 7ba7d8e2f7b6445b60679da826210cdde29eaf8b) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241105/202411051849.OUFvUDzd-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202411051849.OUFvUDzd-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/cpuidle/cpuidle-haltpoll.o: warning: objtool: missing symbol for section .init.text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 0/2] CVE-2024-47702
by Chen Zhongjin 05 Nov '24

05 Nov '24

CVE-2024-47702 Chen Zhongjin (1): bpf: Fix kabi breakage in struct bpf_insn_access_aux Yonghong Song (1): bpf: Fail verification for sign-extension of packet data/data_end/data_meta include/linux/bpf.h | 1 + kernel/bpf/verifier.c | 5 +++-- net/core/filter.c | 21 ++++++++++++++++----- 3 files changed, 20 insertions(+), 7 deletions(-) -- 2.25.1

2 3

[PATCH OLK-6.6 1/2] bpf: Fail verification for sign-extension of packet data/data_end/data_meta
by Chen Zhongjin 05 Nov '24

05 Nov '24

From: Yonghong Song <yonghong.song(a)linux.dev> mainline inclusion from mainline-v6.12-rc1 commit 92de36080c93296ef9005690705cba260b9bd68a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAYPJQ CVE: CVE-2024-47702 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- syzbot reported a kernel crash due to commit 1f1e864b6555 ("bpf: Handle sign-extenstin ctx member accesses"). The reason is due to sign-extension of 32-bit load for packet data/data_end/data_meta uapi field. The original code looks like: r2 = *(s32 *)(r1 + 76) /* load __sk_buff->data */ r3 = *(u32 *)(r1 + 80) /* load __sk_buff->data_end */ r0 = r2 r0 += 8 if r3 > r0 goto +1 ... Note that __sk_buff->data load has 32-bit sign extension. After verification and convert_ctx_accesses(), the final asm code looks like: r2 = *(u64 *)(r1 +208) r2 = (s32)r2 r3 = *(u64 *)(r1 +80) r0 = r2 r0 += 8 if r3 > r0 goto pc+1 ... Note that 'r2 = (s32)r2' may make the kernel __sk_buff->data address invalid which may cause runtime failure. Currently, in C code, typically we have void *data = (void *)(long)skb->data; void *data_end = (void *)(long)skb->data_end; ... and it will generate r2 = *(u64 *)(r1 +208) r3 = *(u64 *)(r1 +80) r0 = r2 r0 += 8 if r3 > r0 goto pc+1 If we allow sign-extension, void *data = (void *)(long)(int)skb->data; void *data_end = (void *)(long)skb->data_end; ... the generated code looks like r2 = *(u64 *)(r1 +208) r2 <<= 32 r2 s>>= 32 r3 = *(u64 *)(r1 +80) r0 = r2 r0 += 8 if r3 > r0 goto pc+1 and this will cause verification failure since "r2 <<= 32" is not allowed as "r2" is a packet pointer. To fix this issue for case r2 = *(s32 *)(r1 + 76) /* load __sk_buff->data */ this patch added additional checking in is_valid_access() callback function for packet data/data_end/data_meta access. If those accesses are with sign-extenstion, the verification will fail. [1] https://lore.kernel.org/bpf/000000000000c90eee061d236d37@google.com/ Reported-by: syzbot+ad9ec60c8eaf69e6f99c(a)syzkaller.appspotmail.com Fixes: 1f1e864b6555 ("bpf: Handle sign-extenstin ctx member accesses") Acked-by: Eduard Zingerman <eddyz87(a)gmail.com> Signed-off-by: Yonghong Song <yonghong.song(a)linux.dev> Link: https://lore.kernel.org/r/20240723153439.2429035-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Signed-off-by: Andrii Nakryiko <andrii(a)kernel.org> Conflicts: include/linux/bpf.h [fix context change in struct bpf_insn_access_aux] Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- include/linux/bpf.h | 1 + kernel/bpf/verifier.c | 5 +++-- net/core/filter.c | 21 ++++++++++++++++----- 3 files changed, 20 insertions(+), 7 deletions(-) diff --git a/include/linux/bpf.h b/include/linux/bpf.h index beec79b4d74b..e1447c33f8e2 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -914,6 +914,7 @@ static_assert(__BPF_REG_TYPE_MAX <= BPF_BASE_TYPE_LIMIT); struct bpf_insn_access_aux { enum bpf_reg_type reg_type; KABI_FILL_HOLE(bool is_retval) /* is accessing function return value ? */ + bool is_ldsx; union { int ctx_field_size; struct { diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index e11daa9fccee..915ff766ec3d 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -5576,12 +5576,13 @@ static int check_packet_access(struct bpf_verifier_env *env, u32 regno, int off, /* check access to 'struct bpf_context' fields. Supports fixed offsets only */ static int check_ctx_access(struct bpf_verifier_env *env, int insn_idx, int off, int size, enum bpf_access_type t, enum bpf_reg_type *reg_type, - struct btf **btf, u32 *btf_id, bool *is_retval) + struct btf **btf, u32 *btf_id, bool *is_retval, bool is_ldsx) { struct bpf_insn_access_aux info = { .reg_type = *reg_type, .log = &env->log, .is_retval = false, + .is_ldsx = is_ldsx, }; if (env->ops->is_valid_access && @@ -6844,7 +6845,7 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn return err; err = check_ctx_access(env, insn_idx, off, size, t, &reg_type, &btf, - &btf_id, &is_retval); + &btf_id, &is_retval, is_ldsx); if (err) verbose_linfo(env, insn_idx, "; "); if (!err && t == BPF_READ && value_regno >= 0) { diff --git a/net/core/filter.c b/net/core/filter.c index e16d746c23da..e4f1dc9f222b 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -8601,13 +8601,16 @@ static bool bpf_skb_is_valid_access(int off, int size, enum bpf_access_type type if (off + size > offsetofend(struct __sk_buff, cb[4])) return false; break; + case bpf_ctx_range(struct __sk_buff, data): + case bpf_ctx_range(struct __sk_buff, data_meta): + case bpf_ctx_range(struct __sk_buff, data_end): + if (info->is_ldsx || size != size_default) + return false; + break; case bpf_ctx_range_till(struct __sk_buff, remote_ip6[0], remote_ip6[3]): case bpf_ctx_range_till(struct __sk_buff, local_ip6[0], local_ip6[3]): case bpf_ctx_range_till(struct __sk_buff, remote_ip4, remote_ip4): case bpf_ctx_range_till(struct __sk_buff, local_ip4, local_ip4): - case bpf_ctx_range(struct __sk_buff, data): - case bpf_ctx_range(struct __sk_buff, data_meta): - case bpf_ctx_range(struct __sk_buff, data_end): if (size != size_default) return false; break; @@ -9051,6 +9054,14 @@ static bool xdp_is_valid_access(int off, int size, } } return false; + } else { + switch (off) { + case offsetof(struct xdp_md, data_meta): + case offsetof(struct xdp_md, data): + case offsetof(struct xdp_md, data_end): + if (info->is_ldsx) + return false; + } } switch (off) { @@ -9381,12 +9392,12 @@ static bool flow_dissector_is_valid_access(int off, int size, switch (off) { case bpf_ctx_range(struct __sk_buff, data): - if (size != size_default) + if (info->is_ldsx || size != size_default) return false; info->reg_type = PTR_TO_PACKET; return true; case bpf_ctx_range(struct __sk_buff, data_end): - if (size != size_default) + if (info->is_ldsx || size != size_default) return false; info->reg_type = PTR_TO_PACKET_END; return true; -- 2.25.1

2 2

[PATCH openEuler-1.0-LTS 0/5] ext4: fix CVE-2024-47701
by Baokun Li 05 Nov '24

05 Nov '24

Eric Whitney (1): ext4: fix RENAME_WHITEOUT handling for inline directories Thadeu Lima de Souza Cascardo (4): ext4: ext4_search_dir should return a proper error ext4: return error on ext4_find_inline_entry ext4: explicitly exit when ext4_find_inline_entry returns an error ext4: avoid OOB when system.data xattr changes underneath the filesystem fs/ext4/inline.c | 35 +++++++++++++++++++++++++---------- fs/ext4/namei.c | 25 ++++++++++++++----------- 2 files changed, 39 insertions(+), 21 deletions(-) -- 2.46.1

2 6

[PATCH OLK-5.10 0/4] ext4: fix CVE-2024-47701
by Baokun Li 05 Nov '24

05 Nov '24

Thadeu Lima de Souza Cascardo (4): ext4: ext4_search_dir should return a proper error ext4: return error on ext4_find_inline_entry ext4: explicitly exit when ext4_find_inline_entry returns an error ext4: avoid OOB when system.data xattr changes underneath the filesystem fs/ext4/inline.c | 35 +++++++++++++++++++++++++---------- fs/ext4/namei.c | 14 ++++++++------ 2 files changed, 33 insertions(+), 16 deletions(-) -- 2.46.1

2 5

[PATCH openEuler-22.03-LTS-SP1 0/5] ext4: fix CVE-2024-47701
by Baokun Li 05 Nov '24

05 Nov '24

Eric Whitney (1): ext4: fix RENAME_WHITEOUT handling for inline directories Thadeu Lima de Souza Cascardo (4): ext4: ext4_search_dir should return a proper error ext4: return error on ext4_find_inline_entry ext4: explicitly exit when ext4_find_inline_entry returns an error ext4: avoid OOB when system.data xattr changes underneath the filesystem fs/ext4/inline.c | 35 +++++++++++++++++++++++++---------- fs/ext4/namei.c | 25 ++++++++++++++----------- 2 files changed, 39 insertions(+), 21 deletions(-) -- 2.46.1

2 6

[PATCH OLK-6.6 0/2] ext4: some dependencies of CVE-2024-47701
by Baokun Li 05 Nov '24

05 Nov '24

Thadeu Lima de Souza Cascardo (2): ext4: ext4_search_dir should return a proper error ext4: explicitly exit when ext4_find_inline_entry returns an error fs/ext4/namei.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) -- 2.46.1

2 3

[openeuler:openEuler-1.0-LTS 1257/1257] net/9p/.tmp_client.o: warning: objtool: missing symbol for section .init.text
by kernel test robot 05 Nov '24

05 Nov '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 0c1156b86933300fc91692f839a7f6e0676f55d7 commit: a6fb923f7803f40a567445dfe1ff3a539c8adc1f [1257/1257] 9p: Use a slab for allocating requests config: x86_64-buildonly-randconfig-002-20241102 (https://download.01.org/0day-ci/archive/20241105/202411051635.WyTNB2ku-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241105/202411051635.WyTNB2ku-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202411051635.WyTNB2ku-lkp@intel.com/ All warnings (new ones prefixed by >>): net/9p/client.c:376: warning: Function parameter or member 'c' not described in 'p9_client_cb' net/9p/client.c:376: warning: Function parameter or member 'req' not described in 'p9_client_cb' net/9p/client.c:376: warning: Function parameter or member 'status' not described in 'p9_client_cb' net/9p/client.c:523: warning: Function parameter or member 'uidata' not described in 'p9_check_zc_errors' net/9p/client.c:774: warning: Function parameter or member 'in_hdrlen' not described in 'p9_client_zc_rpc' net/9p/client.c:774: warning: Excess function parameter 'hdrlen' description in 'p9_client_zc_rpc' net/9p/.tmp_client.o: warning: objtool: parse_opts()+0x2c3: sibling call from callable instruction with modified stack frame net/9p/.tmp_client.o: warning: objtool: p9_client_destroy()+0x6f: sibling call from callable instruction with modified stack frame net/9p/.tmp_client.o: warning: objtool: p9_client_readdir()+0x179: sibling call from callable instruction with modified stack frame net/9p/.tmp_client.o: warning: objtool: p9_client_write()+0x10d: sibling call from callable instruction with modified stack frame net/9p/.tmp_client.o: warning: objtool: p9_client_read()+0x1f8: sibling call from callable instruction with modified stack frame net/9p/.tmp_client.o: warning: objtool: p9_client_clunk()+0x13: sibling call from callable instruction with modified stack frame >> net/9p/.tmp_client.o: warning: objtool: missing symbol for section .init.text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-5.10] drivers/perf: hisi: Enable HiSilicon Erratum 162700402 quirk for HIP09
by Yushan Wang 05 Nov '24

05 Nov '24

From: Junhao He <hejunhao3(a)huawei.com> mainline inclusion from mainline-v6.9-rc1 commit e10b6976f6b9afdf3564f88c851e42d139bb19c0 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IB23U8 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------------------------- HiSilicon UC PMU v2 suffers the erratum 162700402 that the PMU counter cannot be set due to the lack of clock under power saving mode. This will lead to error or inaccurate counts. The clock can be enabled by the PMU global enabling control. This patch tries to fix this by set the UC PMU enable before set event period to turn on the clock, and then restore the UC PMU configuration. The counter register can hold its value without a clock. Fixes: 312eca95e28d ("drivers/perf: hisi: Add support for HiSilicon UC PMU driver") Signed-off-by: Junhao He <hejunhao3(a)huawei.com> Reviewed-by: Yicong Yang <yangyicong(a)hisilicon.com> Link: https://lore.kernel.org/r/20240227125231.53127-1-hejunhao3@huawei.com Signed-off-by: Will Deacon <will(a)kernel.org> Signed-off-by: zhangqz <14294317+zwx1160575(a)user.noreply.gitee.com> --- drivers/perf/hisilicon/hisi_uncore_uc_pmu.c | 42 ++++++++++++++++++++- 1 file changed, 41 insertions(+), 1 deletion(-) diff --git a/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c index 636fb79647c8..481dcc9e8fbf 100644 --- a/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c @@ -287,12 +287,52 @@ static u64 hisi_uc_pmu_read_counter(struct hisi_pmu *uc_pmu, return readq(uc_pmu->base + HISI_UC_CNTR_REGn(hwc->idx)); } -static void hisi_uc_pmu_write_counter(struct hisi_pmu *uc_pmu, +static bool hisi_uc_pmu_get_glb_en_state(struct hisi_pmu *uc_pmu) +{ + u32 val; + + val = readl(uc_pmu->base + HISI_UC_EVENT_CTRL_REG); + return !!FIELD_GET(HISI_UC_EVENT_GLB_EN, val); +} + +static void hisi_uc_pmu_write_counter_normal(struct hisi_pmu *uc_pmu, struct hw_perf_event *hwc, u64 val) { writeq(val, uc_pmu->base + HISI_UC_CNTR_REGn(hwc->idx)); } +static void hisi_uc_pmu_write_counter_quirk_v2(struct hisi_pmu *uc_pmu, + struct hw_perf_event *hwc, u64 val) +{ + hisi_uc_pmu_start_counters(uc_pmu); + hisi_uc_pmu_write_counter_normal(uc_pmu, hwc, val); + hisi_uc_pmu_stop_counters(uc_pmu); +} + +static void hisi_uc_pmu_write_counter(struct hisi_pmu *uc_pmu, + struct hw_perf_event *hwc, u64 val) +{ + bool enable = hisi_uc_pmu_get_glb_en_state(uc_pmu); + bool erratum = uc_pmu->identifier == HISI_PMU_V2; + + /* + * HiSilicon UC PMU v2 suffers the erratum 162700402 that the + * PMU counter cannot be set due to the lack of clock under power + * saving mode. This will lead to error or inaccurate counts. + * The clock can be enabled by the PMU global enabling control. + * The irq handler and pmu_start() will call the function to set + * period. If the function under irq context, the PMU has been + * enabled therefore we set counter directly. Other situations + * the PMU is disabled, we need to enable it to turn on the + * counter clock to set period, and then restore PMU enable + * status, the counter can hold its value without a clock. + */ + if (enable || !erratum) + hisi_uc_pmu_write_counter_normal(uc_pmu, hwc, val); + else + hisi_uc_pmu_write_counter_quirk_v2(uc_pmu, hwc, val); +} + static void hisi_uc_pmu_enable_counter_int(struct hisi_pmu *uc_pmu, struct hw_perf_event *hwc) { -- 2.33.0

2 1

[openeuler:openEuler-1.0-LTS 1231/1231] arch/arm64/kernel/mpam/mpam_ctrlmon.c:403: warning: Function parameter or member 'type' not described in 'show_doms'
by kernel test robot 05 Nov '24

05 Nov '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 0d426553bb97ebfcb4ea34e8fd63477a44316644 commit: 58e843d94efe3f7085dfaac06cb1d011ecb898b1 [1231/1231] arm64/mpam: resctrl: Support priority and hardlimit(Memory bandwidth) configuration config: arm64-randconfig-001-20241029 (https://download.01.org/0day-ci/archive/20241105/202411051527.GvGiUwZk-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241105/202411051527.GvGiUwZk-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202411051527.GvGiUwZk-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/arm64/kernel/mpam/mpam_ctrlmon.c: In function 'add_schema': arch/arm64/kernel/mpam/mpam_ctrlmon.c:53:37: warning: variable 'sc_hdl' set but not used [-Wunused-but-set-variable] 53 | struct resctrl_schema_ctrl *sc_hdl = NULL; | ^~~~~~ arch/arm64/kernel/mpam/mpam_ctrlmon.c:52:37: warning: variable 'sc_pri' set but not used [-Wunused-but-set-variable] 52 | struct resctrl_schema_ctrl *sc_pri = NULL; | ^~~~~~ arch/arm64/kernel/mpam/mpam_ctrlmon.c: In function 'resctrl_mkdir_mondata_all_subdir': arch/arm64/kernel/mpam/mpam_ctrlmon.c:676:54: warning: variable 'rr' set but not used [-Wunused-but-set-variable] 676 | struct raw_resctrl_resource *rr; | ^~ arch/arm64/kernel/mpam/mpam_ctrlmon.c:403: warning: Function parameter or member 's' not described in 'show_doms' arch/arm64/kernel/mpam/mpam_ctrlmon.c:403: warning: Function parameter or member 'r' not described in 'show_doms' arch/arm64/kernel/mpam/mpam_ctrlmon.c:403: warning: Function parameter or member 'schema_name' not described in 'show_doms' >> arch/arm64/kernel/mpam/mpam_ctrlmon.c:403: warning: Function parameter or member 'type' not described in 'show_doms' arch/arm64/kernel/mpam/mpam_ctrlmon.c:403: warning: Function parameter or member 'closid' not described in 'show_doms' vim +403 arch/arm64/kernel/mpam/mpam_ctrlmon.c 1abcabe9dab59ec arch/arm64/kernel/mpam_ctrlmon.c Yang Yingliang 2019-01-30 389 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 390 /** 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 391 * MPAM resources such as L2 may have too many domains for arm64, 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 392 * at this time we should rearrange this display for brevity and 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 393 * harmonious interaction. 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 394 * 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 395 * Before rearrangement: L2:0=ff;1=ff;2=fc;3=ff;4=f;....;255=ff 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 396 * After rearrangement: L2:S;2=fc;S;4=f;S 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 397 * Those continuous fully sharable domains will be combined into 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 398 * a single "S" simply. 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 399 */ 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 400 static void show_doms(struct seq_file *s, struct resctrl_resource *r, 58e843d94efe3f7 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 401 char *schema_name, enum resctrl_ctrl_type type, 58e843d94efe3f7 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 402 struct sd_closid *closid) be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 @403 { 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 404 struct raw_resctrl_resource *rr = r->res; be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 405 struct rdt_domain *dom; 857e8d34273e190 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 406 struct msr_param para; be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 407 bool sep = false; 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 408 bool rg = false; 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 409 bool prev_auto_fill = false; 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 410 u32 reg_val; 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 411 857e8d34273e190 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 412 para.closid = closid; 58e843d94efe3f7 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 413 para.type = type; 857e8d34273e190 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 414 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 415 if (r->dom_num > RESCTRL_SHOW_DOM_MAX_NUM) 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 416 rg = true; be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 417 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 418 seq_printf(s, "%*s:", max_name_width, schema_name); be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 419 list_for_each_entry(dom, &r->domains, list) { 857e8d34273e190 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 420 reg_val = rr->msr_read(dom, &para); 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 421 58e843d94efe3f7 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 422 if (rg && reg_val == r->default_ctrl[SCHEMA_COMM] && 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 423 prev_auto_fill == true) 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 424 continue; 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 425 be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 426 if (sep) be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 427 seq_puts(s, ";"); 58e843d94efe3f7 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 428 if (rg && reg_val == r->default_ctrl[SCHEMA_COMM]) { 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 429 prev_auto_fill = true; 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 430 seq_puts(s, "S"); 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 431 } else { 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 432 seq_printf(s, rr->format_str, dom->id, 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 433 max_data_width, reg_val); 7243df9bf3ab413 arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 434 } be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 435 sep = true; be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 436 } be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 437 seq_puts(s, "\n"); be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 438 } be2167d2a188dc2 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 439 :::::: The code at line 403 was first introduced by commit :::::: be2167d2a188dc20648fa10c2c5ccd56ba579533 arm64/mpam: support resctrl_group_schemata_show :::::: TO: Xie XiuQi <xiexiuqi(a)huawei.com> :::::: CC: Xie XiuQi <xiexiuqi(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0