December 2023 - Kernel - mailweb.openeuler.org

[PATCH OLK-6.6] iommu/arm-smmu-v3: Add a SYNC command to avoid broken page table prefetch
by Zhang Zekun 25 Dec '23

25 Dec '23

hulk inclusion category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I8QSLV CVE: NA ----------------------------------------------- On Hisilicon LINXICORE9100 cores, SMMU pagetable prefetch features may prefetch and use a invalid PTE even the PTE is valid at that time. This will cause the device trigger fake pagefaults. If the SMMU works in terminate mode, transactions which occur fake pagefaults will be aborted, and could result in unexpected errors. To fix this problem, we need to add a SYNC command after smmu has map a iova, then smmu will always try to get the newest PTE. Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- arch/arm64/Kconfig | 13 +++++++++++++ arch/arm64/configs/openeuler_defconfig | 1 + arch/arm64/kernel/cpu_errata.c | 14 ++++++++++++++ arch/arm64/tools/cpucaps | 1 + drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 20 ++++++++++++++++++++ 5 files changed, 49 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 2aca373a7038..02f6dff029ed 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1180,6 +1180,19 @@ config HISILICON_ERRATUM_1980005 If unsure, say N. +config HISILICON_ERRATUM_162100602 + bool "Hisilicon erratum 162100602" + depends on ARM_SMMU_V3 + default y + help + On Hisilicon LINXICORE9100 cores, SMMU pagetable prefetch features may + prefetch and use a invalid PTE even the PTE is valid at that time. This + will cause the device trigger fake pagefaults. If the SMMU works in + terminate mode, transactions which occur fake pagefaults will be aborted, + and could result in unexpected errors. + + 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 33ba39711884..98fa4d2f3b13 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -399,6 +399,7 @@ CONFIG_CAVIUM_TX2_ERRATUM_219=y CONFIG_FUJITSU_ERRATUM_010001=y CONFIG_HISILICON_ERRATUM_161600802=y CONFIG_HISILICON_ERRATUM_162100125=y +CONFIG_HISILICON_ERRATUM_162100602=y CONFIG_QCOM_FALKOR_ERRATUM_1003=y CONFIG_QCOM_FALKOR_ERRATUM_1009=y CONFIG_QCOM_QDF2400_ERRATUM_0065=y diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index a686a96d966a..c569e6c0ac07 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -360,6 +360,13 @@ static const struct midr_range hisilicon_erratum_162100125_cpus[] = { }; #endif +#ifdef CONFIG_HISILICON_ERRATUM_162100602 +static const struct midr_range hisilicon_erratum_162100602_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[] = { { @@ -591,6 +598,13 @@ const struct arm64_cpu_capabilities arm64_errata[] = { ERRATA_MIDR_RANGE_LIST(hisilicon_erratum_162100125_cpus), }, #endif +#ifdef CONFIG_HISILICON_ERRATUM_162100602 + { + .desc = "Hisilicon erratum 162100602", + .capability = ARM64_WORKAROUND_HISILICON_ERRATUM_162100602, + ERRATA_MIDR_RANGE_LIST(hisilicon_erratum_162100602_cpus), + }, +#endif #ifdef CONFIG_HISILICON_ERRATUM_1980005 { .desc = "Hisilicon erratum 1980005 (IDC)", diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps index 0b62edb91876..569ecec76c16 100644 --- a/arch/arm64/tools/cpucaps +++ b/arch/arm64/tools/cpucaps @@ -103,3 +103,4 @@ WORKAROUND_SPECULATIVE_AT WORKAROUND_HISILICON_ERRATUM_162100125 WORKAROUND_HISI_HIP08_RU_PREFETCH WORKAROUND_HISILICON_1980005 +WORKAROUND_HISILICON_ERRATUM_162100602 diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 5055a66644af..d0422bb13724 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2528,6 +2528,23 @@ static void arm_smmu_iotlb_sync(struct iommu_domain *domain, gather->pgsize, true, smmu_domain); } +#ifdef CONFIG_HISILICON_ERRATUM_162100602 +static void arm_smmu_iotlb_sync_map(struct iommu_domain *domain, + unsigned long iova, size_t size) +{ + struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); + size_t granule_size; + + if (!cpus_have_const_cap(ARM64_WORKAROUND_HISILICON_ERRATUM_162100602)) + return; + + granule_size = 1 << __ffs(smmu_domain->domain.pgsize_bitmap); + + /* Add a SYNC command to sync io-pgtale to avoid errors in pgtable prefetch*/ + arm_smmu_tlb_inv_range_domain(iova, granule_size, granule_size, true, smmu_domain); +} +#endif + static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) { @@ -2883,6 +2900,9 @@ static struct iommu_ops arm_smmu_ops = { .unmap_pages = arm_smmu_unmap_pages, .flush_iotlb_all = arm_smmu_flush_iotlb_all, .iotlb_sync = arm_smmu_iotlb_sync, +#ifdef CONFIG_HISILICON_ERRATUM_162100602 + .iotlb_sync_map = arm_smmu_iotlb_sync_map, +#endif .iova_to_phys = arm_smmu_iova_to_phys, .enable_nesting = arm_smmu_enable_nesting, .free = arm_smmu_domain_free, -- 2.17.1

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[PATCH V4 OLK-6.6 0/5] ubi: Enhance fault injection capability for the UBI driver
by ZhaoLong Wang 25 Dec '23

25 Dec '23

CONFIG Dependency CONFIG_MTD=y CONFIG_MTD_NAND_NANDSIM=m CONFIG_MTD_UBI=m CONFIG_FAULT_INJECTION_DEBUG_FS=y CONFIG_MTD_PARTITIONED_MASTER The existing fault injection capability of UBI is too simple. It uses hard-coded fault probability values and lacks other configurable options. As a result, these interfaces are difficult to use when digging defects in the abnormal path of code and reproducing some problems. The kernel provides a powerful fault injection framework, which provides rich configurable fault injection attributes during runtime. So it can be used to improve the fault injection capability of the UBI driver. This series of patches refactor the existing fault injection interface and add some fault injection types to help testers and developers find potential problems in the code. This series of patches enhance the existing fault injection interface and retain the old debugfs interface, and add some fault injection types to help testers and developers Look for potential problems in the code. v1 -> v2: Delete the redundant semicolon of the first patch. v2 -> v3: Completely checked and fixed the English syntax errors in the patch. v3 -> v4: Fixed code indent error ZhaoLong Wang (5): ubi: Use the fault injection framework to enhance the fault injection capability ubi: Split io_failures into write_failure and erase_failure ubi: Add six fault injection type for testing ubi: Reserve sufficient buffer length for the input mask mtd: Add several functions to the fail_function list drivers/mtd/mtdcore.c | 5 + drivers/mtd/ubi/Kconfig | 9 ++ drivers/mtd/ubi/debug.c | 108 ++++++++++++-- drivers/mtd/ubi/debug.h | 304 +++++++++++++++++++++++++++++++++++++--- drivers/mtd/ubi/io.c | 86 +++++++++++- drivers/mtd/ubi/ubi.h | 45 +++--- 6 files changed, 498 insertions(+), 59 deletions(-) -- 2.39.2

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[PATCH V4 OLK-6.6 0/5] ubi: Enhance fault injection capability for the UBI driver
by ZhaoLong Wang 25 Dec '23

25 Dec '23

CONFIG Dependency CONFIG_MTD=y CONFIG_MTD_NAND_NANDSIM=m CONFIG_MTD_UBI=m CONFIG_FAULT_INJECTION_DEBUG_FS=y CONFIG_MTD_PARTITIONED_MASTER The existing fault injection capability of UBI is too simple. It uses hard-coded fault probability values and lacks other configurable options. As a result, these interfaces are difficult to use when digging defects in the abnormal path of code and reproducing some problems. The kernel provides a powerful fault injection framework, which provides rich configurable fault injection attributes during runtime. So it can be used to improve the fault injection capability of the UBI driver. This series of patches refactor the existing fault injection interface and add some fault injection types to help testers and developers find potential problems in the code. This series of patches enhance the existing fault injection interface and retain the old debugfs interface, and add some fault injection types to help testers and developers Look for potential problems in the code. v1 -> v2: Delete the redundant semicolon of the first patch. v2 -> v3: Completely checked and fixed the English syntax errors in the patch. v3 -> v4: Fixed code indent error ZhaoLong Wang (5): ubi: Use the fault injection framework to enhance the fault injection capability ubi: Split io_failures into write_failure and erase_failure ubi: Add six fault injection type for testing ubi: Reserve sufficient buffer length for the input mask mtd: Add several functions to the fail_function list drivers/mtd/mtdcore.c | 5 + drivers/mtd/ubi/Kconfig | 9 ++ drivers/mtd/ubi/debug.c | 108 ++++++++++++-- drivers/mtd/ubi/debug.h | 304 +++++++++++++++++++++++++++++++++++++--- drivers/mtd/ubi/io.c | 86 +++++++++++- drivers/mtd/ubi/ubi.h | 45 +++--- 6 files changed, 498 insertions(+), 59 deletions(-) -- 2.39.2

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[PATCH OLK-6.6 v2 0/9] Support dynamic affinity scheduler
by Hui Tang 25 Dec '23

25 Dec '23

patch 1->7: Introduce dynamic affinity for cfs scheduler. patch 8->9: Tiny bugfix. v1->v2: * move sysctl interface to fair.c Hui Tang (7): sched: Introduce dynamic affinity for cfs scheduler cpuset: Introduce new interface for scheduler dynamic affinity sched: Adjust wakeup cpu range according CPU util dynamicly sched: Adjust cpu allowed in load balance dynamicly sched: Add statistics for scheduler dynamic affinity sched: Add cmdline for dynamic affinity config: enable CONFIG_QOS_SCHED_DYNAMIC_AFFINITY by default zhangwei123171 (2): sched/fair: Remove invalid cpu selection logic in dynamic affinity sched/fair: Modify idle cpu judgment in dynamic affinity arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/proc/base.c | 73 ++++++++++ include/linux/sched.h | 22 +++ init/Kconfig | 10 ++ init/init_task.c | 3 + kernel/cgroup/cpuset.c | 153 ++++++++++++++++++++- kernel/fork.c | 16 +++ kernel/sched/core.c | 98 +++++++++++++ kernel/sched/debug.c | 6 + kernel/sched/fair.c | 183 +++++++++++++++++++++++++ kernel/sched/features.h | 7 + 12 files changed, 572 insertions(+), 1 deletion(-) -- 2.34.1

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[PATCH OLK-6.6 0/4] files-cgroup
by chenridong 25 Dec '23

25 Dec '23

Binder Makin (1): cgroups: Resource controller for open files Lu Jialin (1): enable CONFIG_CGROUP_FILES in openeuler_defconfig for x86 and arm64 Yang Yingliang (1): cgroup/files: support boot parameter to control if disable files cgroup Yu Kuai (1): fs/filescontrol: add a switch to enable / disable accounting of open fds .../admin-guide/kernel-parameters.txt | 7 +- arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/Makefile | 1 + fs/file.c | 68 +++- fs/filescontrol.c | 312 ++++++++++++++++++ include/linux/cgroup_subsys.h | 4 + include/linux/fdtable.h | 1 + include/linux/filescontrol.h | 40 +++ init/Kconfig | 10 + 10 files changed, 438 insertions(+), 7 deletions(-) create mode 100644 fs/filescontrol.c create mode 100644 include/linux/filescontrol.h -- 2.34.1

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[PATCH OLK-6.6 0/7] arm64: Add framework to turn IPI as NMI
by Liao Chen 25 Dec '23

25 Dec '23

Config Dependencies: CONFIG_PSEUDO_NMI=y CONFIG_LOCKUP_DETECTOR=y CONFIG_SOFTLOCKUP_DETECTOR=y CONFIG_LKDTM=y CONFIG_HAVE_ARCH_KGDB=y CONFIG_KGDB=y CONFIG_KGDB_HONOUR_BLOCKLIST=y CONFIG_KGDB_SERIAL_CONSOLE=y CONFIG_KGDB_KDB=y Sumit Garg (7): arm64: Add framework to turn IPI as NMI irqchip/gic-v3: Enable support for SGIs to act as NMIs arm64: smp: Assign and setup an IPI as NMI nmi: backtrace: Allow runtime arch specific override arm64: ipi_nmi: Add support for NMI backtrace kgdb: Expose default CPUs roundup fallback mechanism arm64: kgdb: Roundup cpus using IPI as NMI arch/arm/include/asm/irq.h | 2 +- arch/arm/kernel/smp.c | 3 +- arch/arm64/include/asm/irq.h | 6 +++ arch/arm64/include/asm/nmi.h | 17 +++++++ arch/arm64/kernel/Makefile | 2 +- arch/arm64/kernel/ipi_nmi.c | 84 ++++++++++++++++++++++++++++++++ arch/arm64/kernel/kgdb.c | 18 +++++++ arch/arm64/kernel/smp.c | 8 +++ arch/mips/include/asm/irq.h | 2 +- arch/mips/kernel/process.c | 3 +- arch/powerpc/include/asm/nmi.h | 7 +++ arch/powerpc/kernel/stacktrace.c | 3 +- arch/sparc/include/asm/irq_64.h | 2 +- arch/sparc/kernel/process_64.c | 4 +- arch/x86/include/asm/irq.h | 2 +- arch/x86/kernel/apic/hw_nmi.c | 3 +- drivers/irqchip/irq-gic-v3.c | 29 ++++++++--- include/linux/kgdb.h | 12 +++++ include/linux/nmi.h | 12 ++--- kernel/debug/debug_core.c | 8 ++- 20 files changed, 200 insertions(+), 27 deletions(-) create mode 100644 arch/arm64/include/asm/nmi.h create mode 100644 arch/arm64/kernel/ipi_nmi.c -- 2.34.1

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[PATCH OLK-5.10 0/2] perf/core: Fix CVE-2023-6931
by Yang Jihong 25 Dec '23

25 Dec '23

Mark Rutland (1): perf: Fix perf_event_validate_size() lockdep splat Peter Zijlstra (1): perf: Fix perf_event_validate_size() kernel/events/core.c | 67 ++++++++++++++++++++++++++++++-------------- 1 file changed, 46 insertions(+), 21 deletions(-) -- 2.34.1

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[PATCH V3 OLK-6.6 0/5] ubi: Enhance fault injection capability for the UBI driver
by ZhaoLong Wang 25 Dec '23

25 Dec '23

CONFIG Dependency CONFIG_MTD=y CONFIG_MTD_NAND_NANDSIM=m CONFIG_MTD_UBI=m CONFIG_FAULT_INJECTION_DEBUG_FS=y CONFIG_MTD_PARTITIONED_MASTER The existing fault injection capability of UBI is too simple. It uses hard-coded fault probability values and lacks other configurable options. As a result, these interfaces are difficult to use when digging defects in the abnormal path of code and reproducing some problems. The kernel provides a powerful fault injection framework, which provides rich configurable fault injection attributes during runtime. So it can be used to improve the fault injection capability of the UBI driver. This series of patches refactor the existing fault injection interface and add some fault injection types to help testers and developers find potential problems in the code. This series of patches enhance the existing fault injection interface and retain the old debugfs interface, and add some fault injection types to help testers and developers Look for potential problems in the code. v1 -> v2: Delete the redundant semicolon of the first patch. v2 -> v3: Completely checked and fixed the English syntax errors in the patch. ZhaoLong Wang (5): ubi: Use the fault injection framework to enhance the fault injection capability ubi: Split io_failures into write_failure and erase_failure ubi: Add six fault injection type for testing ubi: Reserve sufficient buffer length for the input mask mtd: Add several functions to the fail_function list drivers/mtd/mtdcore.c | 5 + drivers/mtd/ubi/Kconfig | 9 ++ drivers/mtd/ubi/debug.c | 108 ++++++++++++-- drivers/mtd/ubi/debug.h | 304 +++++++++++++++++++++++++++++++++++++--- drivers/mtd/ubi/io.c | 86 +++++++++++- drivers/mtd/ubi/ubi.h | 45 +++--- 6 files changed, 498 insertions(+), 59 deletions(-) -- 2.39.2

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[PATCH OLK-6.6 0/7] arm64: Add framework to turn IPI as NMI
by Liao Chen 25 Dec '23

25 Dec '23

Config Dependencies: CONFIG_PSEUDO_NMI=y CONFIG_LOCKUP_DETECTOR=y CONFIG_SOFTLOCKUP_DETECTOR=y CONFIG_LKDTM=y CONFIG_HAVE_ARCH_KGDB=y CONFIG_KGDB=y CONFIG_KGDB_HONOUR_BLOCKLIST=y CONFIG_KGDB_SERIAL_CONSOLE=y CONFIG_KGDB_KDB=y Sumit Garg (7): arm64: Add framework to turn IPI as NMI irqchip/gic-v3: Enable support for SGIs to act as NMIs arm64: smp: Assign and setup an IPI as NMI nmi: backtrace: Allow runtime arch specific override arm64: ipi_nmi: Add support for NMI backtrace kgdb: Expose default CPUs roundup fallback mechanism arm64: kgdb: Roundup cpus using IPI as NMI arch/arm/include/asm/irq.h | 2 +- arch/arm/kernel/smp.c | 3 +- arch/arm64/include/asm/irq.h | 6 +++ arch/arm64/include/asm/nmi.h | 17 +++++++ arch/arm64/kernel/Makefile | 2 +- arch/arm64/kernel/ipi_nmi.c | 84 ++++++++++++++++++++++++++++++++ arch/arm64/kernel/kgdb.c | 18 +++++++ arch/arm64/kernel/smp.c | 8 +++ arch/mips/include/asm/irq.h | 2 +- arch/mips/kernel/process.c | 3 +- arch/powerpc/include/asm/nmi.h | 7 +++ arch/powerpc/kernel/stacktrace.c | 3 +- arch/sparc/include/asm/irq_64.h | 2 +- arch/sparc/kernel/process_64.c | 4 +- arch/x86/include/asm/irq.h | 2 +- arch/x86/kernel/apic/hw_nmi.c | 3 +- drivers/irqchip/irq-gic-v3.c | 29 ++++++++--- include/linux/kgdb.h | 12 +++++ include/linux/nmi.h | 12 ++--- kernel/debug/debug_core.c | 8 ++- 20 files changed, 200 insertions(+), 27 deletions(-) create mode 100644 arch/arm64/include/asm/nmi.h create mode 100644 arch/arm64/kernel/ipi_nmi.c -- 2.34.1

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[PATCH OLK-6.6 v3 0/2] optimize inlining
by Yuntao Liu 25 Dec '23

25 Dec '23

*** BLURB HERE *** Guo Xuenan (2): Revert "compiler: remove CONFIG_OPTIMIZE_INLINING entirely" make OPTIMIZE_INLINING config editable arch/arm64/kvm/sys_regs.h | 5 ++++ arch/x86/configs/i386_defconfig | 1 + arch/x86/configs/x86_64_defconfig | 1 + .../net/ethernet/mellanox/mlx5/core/health.c | 24 +++++++++++++++++++ .../ethernet/mellanox/mlx5/core/mlx5_core.h | 24 ------------------- .../pci/hive_isp_css_include/print_support.h | 4 ++++ include/linux/compiler_types.h | 8 +++++++ include/trace/trace_events.h | 2 +- kernel/configs/tiny.config | 1 + lib/Kconfig.debug | 13 ++++++++++ 10 files changed, 58 insertions(+), 25 deletions(-) -- 2.34.1

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