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[PATCH OLK-6.6 0/7]arm64: add machine check safe support
by Tong Tiangen 08 Dec '23

08 Dec '23

With the increase of memory capacity and density, the probability of memory error also increases. The increasing size and density of server RAM in data centers and clouds have shown increased uncorrectable memory errors. Currently, the kernel has mechanism to recover from hardware memory errors. This patchset provides a new recovery mechanism. For arm64, the hardware memory error handling in do_sea(), which is divided into two cases: 1. If the user state consumed the memory errors, the solution is to kill the user process and isolate the error page. 2. If the kernel state consumed the memory errors, the solution is to panic. For case 2, Undifferentiated panic may not be the optimal choice, as it can be handled better. In some scenarios, we can avoid panic, such as uaccess, if the uaccess fails due to memory error, only the user process will be affected, killing the user process and isolating the user page with hardware memory errors is a better choice. Tong Tiangen (7): uaccess: add generic fallback version of copy_mc_to_user() arm64: add support for machine check error safe arm64: add uaccess to machine check safe mm/hwpoison: return -EFAULT when copy fail in copy_mc_[user]_highpage() arm64: support copy_mc_[user]_highpage() arm64: introduce copy_mc_to_kernel() implementation arm64: add machine check safe sysctl interface Documentation/admin-guide/sysctl/kernel.rst | 14 ++ arch/arm64/Kconfig | 1 + arch/arm64/include/asm/asm-extable.h | 15 ++ arch/arm64/include/asm/assembler.h | 4 + arch/arm64/include/asm/extable.h | 1 + arch/arm64/include/asm/mte.h | 5 + arch/arm64/include/asm/page.h | 10 + arch/arm64/include/asm/string.h | 5 + arch/arm64/include/asm/uaccess.h | 21 ++ arch/arm64/lib/Makefile | 4 +- arch/arm64/lib/copy_from_user.S | 10 +- arch/arm64/lib/copy_mc_page.S | 89 +++++++ arch/arm64/lib/copy_to_user.S | 10 +- arch/arm64/lib/memcpy_mc.S | 257 ++++++++++++++++++++ arch/arm64/lib/mte.S | 27 ++ arch/arm64/mm/copypage.c | 66 ++++- arch/arm64/mm/extable.c | 21 +- arch/arm64/mm/fault.c | 58 ++++- arch/powerpc/include/asm/uaccess.h | 1 + arch/x86/include/asm/uaccess.h | 1 + include/linux/highmem.h | 16 +- include/linux/uaccess.h | 9 + mm/kasan/shadow.c | 12 + mm/khugepaged.c | 4 +- 24 files changed, 635 insertions(+), 26 deletions(-) create mode 100644 arch/arm64/lib/copy_mc_page.S create mode 100644 arch/arm64/lib/memcpy_mc.S -- 2.25.1

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[PATCH OLK-6.6 v3 0/4] add redis sockmap sample code
by Zhengchao Shao 07 Dec '23

07 Dec '23

add redis sockmap sample code. Liu Jian (4): cgroup: make cgroup_bpf_prog_attach work when cgroup2 is not mounted net: let sockops can use bpf_get_current_comm() net: add local_skb parameter to identify local tcp connection tools: add sample sockmap code for redis include/linux/cgroup.h | 1 + include/linux/filter.h | 3 + include/linux/skbuff.h | 5 + include/uapi/linux/bpf.h | 1 + kernel/bpf/cgroup.c | 8 +- kernel/cgroup/cgroup.c | 24 +++ net/Kconfig | 5 + net/core/filter.c | 13 ++ net/ipv4/tcp_input.c | 6 +- net/ipv4/tcp_output.c | 9 + tools/include/uapi/linux/bpf.h | 1 + tools/netacc/Makefile | 24 +++ tools/netacc/bpf_sockmap.h | 167 +++++++++++++++++++ tools/netacc/net-acc | 35 ++++ tools/netacc/netacc.c | 296 +++++++++++++++++++++++++++++++++ tools/netacc/netaccsockmap.c | 176 ++++++++++++++++++++ 16 files changed, 769 insertions(+), 5 deletions(-) create mode 100644 tools/netacc/Makefile create mode 100644 tools/netacc/bpf_sockmap.h create mode 100755 tools/netacc/net-acc create mode 100644 tools/netacc/netacc.c create mode 100644 tools/netacc/netaccsockmap.c -- 2.34.1

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[PATCH openEuler-1.0-LTS v2 0/2] LTS patch backport
by Dong Chenchen 07 Dec '23

07 Dec '23

Dong Chenchen (1): net: fix kabi broken in struct netns_xfrm Eric Dumazet (1): xfrm: fix a data-race in xfrm_gen_index() include/net/netns/xfrm.h | 3 +++ net/xfrm/xfrm_policy.c | 6 ++---- 2 files changed, 5 insertions(+), 4 deletions(-) -- 2.25.1

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[PATCH openEuler-1.0-LTS 0/2] LTS patch backport
by Dong Chenchen 07 Dec '23

07 Dec '23

Dong Chenchen (1): net: fix kabi broken in struct netns_xfrm Eric Dumazet (1): xfrm: fix a data-race in xfrm_gen_index() include/net/netns/xfrm.h | 1 + net/xfrm/xfrm_policy.c | 6 ++---- 2 files changed, 3 insertions(+), 4 deletions(-) -- 2.25.1

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[PATCH openEuler-1.0-LTS v3 00/20] linux-4.19.y inclusion
by Zhang Changzhong 07 Dec '23

07 Dec '23

v2->v3: drop "xfrm: fix a data-race in xfrm_gen_index()" to avoid kabi changes v1->v2: remove redundant patches Chen Yu (1): genirq/matrix: Exclude managed interrupts in irq_matrix_allocated() Christophe JAILLET (1): ACPI: sysfs: Fix create_pnp_modalias() and create_of_modalias() Eric Dumazet (4): tcp: tsq: relax tcp_small_queue_check() when rtx queue contains a single skb tcp_metrics: add missing barriers on delete tcp_metrics: properly set tp->snd_ssthresh in tcp_init_metrics() tcp_metrics: do not create an entry from tcp_init_metrics() Gou Hao (1): ext4: move 'ix' sanity check to corrent position Jan Kara (1): quota: Fix slow quotaoff Jeff Layton (1): overlayfs: set ctime when setting mtime and atime Jorge Sanjuan Garcia (1): mcb: remove is_added flag from mcb_device struct Kuniyuki Iwashima (1): dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. Marc Kleine-Budde (3): can: dev: move driver related infrastructure into separate subdir can: dev: can_restart(): don't crash kernel if carrier is OK can: dev: can_restart(): fix race condition between controller restart and netif_carrier_on() Michal Koutný (1): cgroup: Remove duplicates in cgroup v1 tasks file Neal Cardwell (1): tcp: fix excessive TLP and RACK timeouts from HZ rounding Peter Zijlstra (1): sched,idle,rcu: Push rcu_idle deeper into the idle path Reuben Hawkins (1): vfs: fix readahead(2) on block devices Sunil V L (1): ACPI: irq: Fix incorrect return value in acpi_register_gsi() Yan Zhai (1): ipv6: avoid atomic fragment on GSO packets drivers/acpi/device_sysfs.c | 10 ++-- drivers/acpi/irq.c | 7 ++- drivers/cpuidle/cpuidle.c | 12 +++-- drivers/mcb/mcb-core.c | 10 ++-- drivers/mcb/mcb-parse.c | 2 - drivers/net/can/Makefile | 7 +-- drivers/net/can/dev/Makefile | 7 +++ drivers/net/can/{ => dev}/dev.c | 10 ++-- drivers/net/can/{ => dev}/rx-offload.c | 0 fs/ext4/extents.c | 10 ++-- fs/overlayfs/copy_up.c | 2 +- fs/quota/dquot.c | 66 +++++++++++++++----------- include/linux/mcb.h | 1 - include/linux/quota.h | 4 +- include/linux/quotaops.h | 2 +- include/net/tcp.h | 3 ++ kernel/cgroup/cgroup-v1.c | 5 +- kernel/irq/matrix.c | 6 +-- kernel/sched/idle.c | 22 ++++----- mm/readahead.c | 3 +- net/dccp/ipv6.c | 6 +-- net/ipv4/tcp_metrics.c | 15 +++--- net/ipv4/tcp_output.c | 25 +++++++--- net/ipv4/tcp_recovery.c | 2 +- net/ipv6/ip6_output.c | 8 +++- net/ipv6/syncookies.c | 7 +-- 26 files changed, 145 insertions(+), 107 deletions(-) create mode 100644 drivers/net/can/dev/Makefile rename drivers/net/can/{ => dev}/dev.c (99%) rename drivers/net/can/{ => dev}/rx-offload.c (100%) -- 2.34.1

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[PATCH OLK-6.6] arm64: kernel: disable CNP on LINXICORE9100
by Tong Tiangen 07 Dec '23

07 Dec '23

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8M8F9 CVE: NA -------------------------------- On Hisilicon LINXICORE9100 cores, sharing tlb entries on two cores when TTBRx.CNP=1 differs from the standard ARM core. This causes issues when tlb entries sharing between CPU cores. Avoid these issues by disabling CNP feature for Hisilicon LINXICORE9100 cores. Signed-off-by: Tong Tiangen <tongtiangen(a)huawei.com> --- Documentation/arch/arm64/silicon-errata.rst | 2 ++ arch/arm64/Kconfig | 11 +++++++++++ arch/arm64/configs/openeuler_defconfig | 1 + arch/arm64/include/asm/cputype.h | 2 ++ arch/arm64/kernel/cpu_errata.c | 14 ++++++++++++++ arch/arm64/kernel/cpufeature.c | 3 +++ arch/arm64/tools/cpucaps | 1 + 7 files changed, 34 insertions(+) diff --git a/Documentation/arch/arm64/silicon-errata.rst b/Documentation/arch/arm64/silicon-errata.rst index f47f63bcf67c..bb62e0dbd546 100644 --- a/Documentation/arch/arm64/silicon-errata.rst +++ b/Documentation/arch/arm64/silicon-errata.rst @@ -203,6 +203,8 @@ stable kernels. | Hisilicon | Hip08 SMMU PMCG | #162001900 | N/A | | | Hip09 SMMU PMCG | | | +----------------+-----------------+-----------------+-----------------------------+ +| Hisilicon | LINXICORE9100 | #162100125 | HISILICON_ERRATUM_162100125 | ++----------------+-----------------+-----------------+-----------------------------+ +----------------+-----------------+-----------------+-----------------------------+ | Qualcomm Tech. | Kryo/Falkor v1 | E1003 | QCOM_FALKOR_ERRATUM_1003 | +----------------+-----------------+-----------------+-----------------------------+ diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 78f20e632712..5de0d8348cc3 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1158,6 +1158,17 @@ config HISILICON_ERRATUM_161600802 If unsure, say Y. +config HISILICON_ERRATUM_162100125 + bool "Hisilicon erratum 162100125" + default y + help + On Hisilicon LINXICORE9100 cores, sharing tlb entries on two cores when + TTBRx.CNP=1 differs from the standard ARM core. This causes issues when + tlb entries sharing between CPU cores. Avoid these issues by disabling + CNP support for Hisilicon LINXICORE9100 cores. + + If unsure, say Y. + config QCOM_FALKOR_ERRATUM_1003 bool "Falkor E1003: Incorrect translation due to ASID change" default y diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 8f1a4db8d49b..68d073921996 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -395,6 +395,7 @@ CONFIG_CAVIUM_ERRATUM_30115=y CONFIG_CAVIUM_TX2_ERRATUM_219=y CONFIG_FUJITSU_ERRATUM_010001=y CONFIG_HISILICON_ERRATUM_161600802=y +CONFIG_HISILICON_ERRATUM_162100125=y CONFIG_QCOM_FALKOR_ERRATUM_1003=y CONFIG_QCOM_FALKOR_ERRATUM_1009=y CONFIG_QCOM_QDF2400_ERRATUM_0065=y diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h index 7c7493cb571f..202588ad92e8 100644 --- a/arch/arm64/include/asm/cputype.h +++ b/arch/arm64/include/asm/cputype.h @@ -119,6 +119,7 @@ #define FUJITSU_CPU_PART_A64FX 0x001 #define HISI_CPU_PART_TSV110 0xD01 +#define HISI_CPU_PART_LINXICORE9100 0xD02 #define APPLE_CPU_PART_M1_ICESTORM 0x022 #define APPLE_CPU_PART_M1_FIRESTORM 0x023 @@ -180,6 +181,7 @@ #define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL) #define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX) #define MIDR_HISI_TSV110 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_TSV110) +#define MIDR_HISI_LINXICORE9100 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_LINXICORE9100) #define MIDR_APPLE_M1_ICESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM) #define MIDR_APPLE_M1_FIRESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM) #define MIDR_APPLE_M1_ICESTORM_PRO MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM_PRO) diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 5706e74c5578..74c4ecc4a980 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -282,6 +282,13 @@ static const struct midr_range cavium_erratum_30115_cpus[] = { }; #endif +#ifdef CONFIG_HISILICON_ERRATUM_162100125 +static const struct midr_range hisilicon_erratum_162100125_cpus[] = { + MIDR_REV(MIDR_HISI_LINXICORE9100, 0, 0), + {}, +}; +#endif + #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003 static const struct arm64_cpu_capabilities qcom_erratum_1003_list[] = { { @@ -506,6 +513,13 @@ const struct arm64_cpu_capabilities arm64_errata[] = { .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, .cpu_enable = cpu_enable_trap_ctr_access, }, +#ifdef CONFIG_HISILICON_ERRATUM_162100125 + { + .desc = "Hisilicon erratum 162100125", + .capability = ARM64_WORKAROUND_HISILICON_ERRATUM_162100125, + ERRATA_MIDR_RANGE_LIST(hisilicon_erratum_162100125_cpus), + }, +#endif #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003 { .desc = "Qualcomm Technologies Falkor/Kryo erratum 1003", diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 444a73c2e638..ef4f66b2b6ff 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -1624,6 +1624,9 @@ has_useable_cnp(const struct arm64_cpu_capabilities *entry, int scope) if (cpus_have_const_cap(ARM64_WORKAROUND_NVIDIA_CARMEL_CNP)) return false; + if (cpus_have_const_cap(ARM64_WORKAROUND_HISILICON_ERRATUM_162100125)) + return false; + return has_cpuid_feature(entry, scope); } diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps index dea3dc89234b..d85d4a741aed 100644 --- a/arch/arm64/tools/cpucaps +++ b/arch/arm64/tools/cpucaps @@ -100,3 +100,4 @@ WORKAROUND_NVIDIA_CARMEL_CNP WORKAROUND_QCOM_FALKOR_E1003 WORKAROUND_REPEAT_TLBI WORKAROUND_SPECULATIVE_AT +WORKAROUND_HISILICON_ERRATUM_162100125 -- 2.25.1

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[PATCH v2 OLK-5.10 0/3] Fixed some memory leak issues of the Perf tool
by Junhao He 07 Dec '23

07 Dec '23

Fixed some memory leak issues of the Perf tool: a) ptt: Fix memory leak in lseek failure handling b) ptt: Fix one memory leakage in hisi_ptt_process_auxtrace_event() c) header: Fix one memory leakage in perf_event__fprintf_event_update Kuan-Wei Chiu (1): perf hisi-ptt: Fix memory leak in lseek failure handling Yicong Yang (2): perf hisi-ptt: Fix one memory leakage in hisi_ptt_process_auxtrace_event() perf header: Fix one memory leakage in perf_event__fprintf_event_update() tools/perf/util/header.c | 6 ++++-- tools/perf/util/hisi-ptt.c | 5 ++++- 2 files changed, 8 insertions(+), 3 deletions(-) -- 2.33.0

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[PATCH v2 OLK-5.10 0/3] Fixed some memory leak issues of the Perf tool
by Junhao He 07 Dec '23

07 Dec '23

Fixed some memory leak issues of the Perf tool: a) ptt: Fix memory leak in lseek failure handling b) ptt: Fix one memory leakage in hisi_ptt_process_auxtrace_event() c) header: Fix one memory leakage in perf_event__fprintf_event_update Kuan-Wei Chiu (1): perf hisi-ptt: Fix memory leak in lseek failure handling Yicong Yang (2): perf hisi-ptt: Fix one memory leakage in hisi_ptt_process_auxtrace_event() perf header: Fix one memory leakage in perf_event__fprintf_event_update() tools/perf/util/header.c | 6 ++++-- tools/perf/util/hisi-ptt.c | 5 ++++- 2 files changed, 8 insertions(+), 3 deletions(-) -- 2.33.0

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[PATCH v5 OLK-6.6 0/5] Support Qos Scheduler
by Wenyu Huang 07 Dec '23

07 Dec '23

Zhang Qiao (5): sched: Introduce qos scheduler for co-location sched: Throttle qos cfs_rq when current cpu is running online task sched: Support kill boost for offline task sched: Introduce handle priority reversion mechanism sched: Enable qos scheduler config arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + include/linux/cgroup.h | 4 + include/linux/resume_user_mode.h | 5 + include/linux/sched.h | 11 + init/Kconfig | 12 + kernel/cgroup/cgroup.c | 22 ++ kernel/sched/core.c | 155 ++++++++++ kernel/sched/fair.c | 378 ++++++++++++++++++++++++- kernel/sched/sched.h | 12 + kernel/signal.c | 3 + kernel/sysctl.c | 1 - 12 files changed, 603 insertions(+), 2 deletions(-) -- 2.34.1

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[PATCH OLK-6.6 v2 00/19] Add sharepool support
by Wang Wensheng 07 Dec '23

07 Dec '23

This patch series migrates share pool features from OLK-5.10 to OLK-6.6. We don't want to do this work patch by patch since there are hundreds of patches in OLK-5.10 including bugfix and small features generation. Instead we just take the final version and split it into a few small patches, each of which contains one feature at the final version. The share pool features is a big feature, it is mainly used to share user virtual memory for different processes in the same group. It could be used by this steps: Process A create a new group which is owned by process A. Process A add process B to the group. Process A add process C to the same group. Process B alloc a new memory VA, and write something in it. The VA was send to the process C by IPC, then process C got it. The process C access the VA and got the data directly. The process A could add more processes in the group to share the memory. Fix the memory by use the free function or exit the group. The new features is enabled both by CONFIG_SHARE_POOL and the enable_ascend_share_pool bootarg, it would not affect anything if disabled. v1->v2: Delete some unused code. Wang Wensheng (19): mm/hugetlb: Introduce hugetlb_insert_hugepage_pte[_by_pa] mm/vmalloc: Extend vmalloc usage about hugepage mm: Extend mmap assocated functions to accept mm_struct mm/sharepool: Add base framework for share_pool mm/sharepool: Add sp_area management code mm/sharepool: Reserve the va space for share_pool mm/sharepool: Implement mg_sp_make_share_u2k() mm/sharepool: Implement mg_sp_unshare_kva mm/sharepool: Implement mg_sp_walk_page_range() mm/sharepool: Implement mg_sp_free() mm/sharepool: Implement mg_sp_alloc() mm/sharepool: Implement mg_sp_make_share_k2u() mm/sharepool: Implement mg_sp_group_add_task() mm/sharepool: Implement mg_sp_group_id_by_pid() mm/sharepool: Implement mg_sp_id_of_current() mm/sharepool: Implement mg_sp_config_dvpp_range() mm/sharepool: Add proc interfaces to show sp info mm/sharepool: support fork() and exit() to handle the mm mm/sharepool: Protect the va reserved for sharepool include/linux/hugetlb.h | 32 + include/linux/mempolicy.h | 11 + include/linux/mm.h | 17 + include/linux/mm_types.h | 6 + include/linux/share_pool.h | 267 +++ include/linux/vmalloc.h | 18 + kernel/fork.c | 3 + mm/Kconfig | 34 + mm/Makefile | 1 + mm/gup.c | 23 +- mm/hugetlb.c | 78 + mm/mempolicy.c | 12 +- mm/mmap.c | 50 +- mm/mremap.c | 4 + mm/share_pool.c | 3448 ++++++++++++++++++++++++++++++++++++ mm/util.c | 4 + mm/vmalloc.c | 205 ++- 17 files changed, 4192 insertions(+), 21 deletions(-) create mode 100644 include/linux/share_pool.h create mode 100644 mm/share_pool.c -- 2.17.1

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