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[PATCH OLK-5.10] iommu/arm-smmu-v3: Add config isolations for BTM
by Zhang Zekun 20 Nov '23

20 Nov '23

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8I0NL ------------------------------- Add config isolation for SMMU BTM (Broadcast TLB Maintenance), because VMIDS are all shared and will be invalid all together, which might cause performance issues. Besides, If the hardware fail to invalid TLB, it can cause unexpected errors, you need to do some tests to make sure BTM work as expect. Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/iommu/Kconfig | 10 ++++++++++ drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 ++ 2 files changed, 12 insertions(+) diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index b630e58c49b6..f768fbc60dd3 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -438,6 +438,16 @@ config SMMU_BYPASS_DEV This feature will be replaced by ACPI IORT RMR node, which will be upstreamed in mainline. +config SMMU_BTM_SUPPORT + bool "SMMU BTM (Broadcast TLB Maintenance) support" + depends on ARM_SMMU_V3 + help + ARM SMMU BTM feature can support for receiving broadcast TLBI + operations issued by Arm PEs in the system, which can help to + speed up the tlb invalidation speed in SVA scenarios. + + This feature need support for BTM features, if not sure, say NO. + endif # IOMMU_SUPPORT config IOVA_MAX_GLOBAL_MAGS 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 d93ce123df49..09777b05b089 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -4954,8 +4954,10 @@ static int arm_smmu_device_hw_probe(struct arm_smmu_device *smmu) * broadcasted TLB invalidations that target EL2-E2H world. Don't enable * BTM in that case. */ +#ifdef CONFIG_SMMU_BTM_SUPPORT if (reg & IDR0_BTM && (!vhe || reg & IDR0_HYP)) smmu->features |= ARM_SMMU_FEAT_BTM; +#endif /* * The coherency feature as set by FW is used in preference to the ID -- 2.17.1

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[PATCH OLK-5.10 v3 0/3] Introduce CPU inspect feature
by Yu Liao 20 Nov '23

20 Nov '23

v2 -> v3: - fix compilation failure on arm32 - enable CPU inspect for arm64 by default This patches series introduce CPU-inspect feature. CPU-inspect is designed to provide a framework for early detection of SDC by proactively executing CPU inspection test cases. Yu Liao (3): cpuinspect: add CPU-inspect infrastructure cpuinspect: add ATF inspector openeuler_defconfig: enable CPU inspect for arm64 by default arch/arm64/configs/openeuler_defconfig | 7 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/cpuinspect/Kconfig | 24 +++ drivers/cpuinspect/Makefile | 8 + drivers/cpuinspect/cpuinspect.c | 165 ++++++++++++++++ drivers/cpuinspect/cpuinspect.h | 46 +++++ drivers/cpuinspect/inspector-atf.c | 70 +++++++ drivers/cpuinspect/inspector.c | 124 ++++++++++++ drivers/cpuinspect/sysfs.c | 257 +++++++++++++++++++++++++ include/linux/cpuinspect.h | 40 ++++ 11 files changed, 744 insertions(+) create mode 100644 drivers/cpuinspect/Kconfig create mode 100644 drivers/cpuinspect/Makefile create mode 100644 drivers/cpuinspect/cpuinspect.c create mode 100644 drivers/cpuinspect/cpuinspect.h create mode 100644 drivers/cpuinspect/inspector-atf.c create mode 100644 drivers/cpuinspect/inspector.c create mode 100644 drivers/cpuinspect/sysfs.c create mode 100644 include/linux/cpuinspect.h -- 2.33.0

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[PATCH OLK-5.10 v2 0/2] Introduce CPU inspect feature
by Yu Liao 20 Nov '23

20 Nov '23

This patches series introduce CPU-inspect feature. CPU-inspect is designed to provide a framework for early detection of SDC by proactively executing CPU inspection test cases. v1 -> v2: fix some issues Yu Liao (2): cpuinspect: add CPU-inspect infrastructure cpuinspect: add ATF inspector drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/cpuinspect/Kconfig | 24 +++ drivers/cpuinspect/Makefile | 8 + drivers/cpuinspect/cpuinspect.c | 165 ++++++++++++++++++ drivers/cpuinspect/cpuinspect.h | 46 ++++++ drivers/cpuinspect/inspector-atf.c | 70 ++++++++ drivers/cpuinspect/inspector.c | 124 ++++++++++++++ drivers/cpuinspect/sysfs.c | 257 +++++++++++++++++++++++++++++ include/linux/cpuinspect.h | 40 +++++ 10 files changed, 737 insertions(+) create mode 100644 drivers/cpuinspect/Kconfig create mode 100644 drivers/cpuinspect/Makefile create mode 100644 drivers/cpuinspect/cpuinspect.c create mode 100644 drivers/cpuinspect/cpuinspect.h create mode 100644 drivers/cpuinspect/inspector-atf.c create mode 100644 drivers/cpuinspect/inspector.c create mode 100644 drivers/cpuinspect/sysfs.c create mode 100644 include/linux/cpuinspect.h -- 2.33.0

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[PATCH OLK-6.6] dm ioctl: add DMINFO() to track dm device create/remove
by Li Lingfeng 20 Nov '23

20 Nov '23

From: Luo Meng <luomeng12(a)huawei.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8HVC5 CVE: NA -------------------------------- Add DMINFO() to help tracking device creation/removal success. Signed-off-by: Luo Meng <luomeng12(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- drivers/md/dm-ioctl.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 21ebb6c39394..5efe0193b2e8 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -327,6 +327,9 @@ static struct dm_table *__hash_remove(struct hash_cell *hc) table = NULL; if (hc->new_map) table = hc->new_map; + + DMINFO("%s[%i]: %s (%s) is removed successfully", + current->comm, current->pid, hc->md->disk->disk_name, hc->name); dm_put(hc->md); free_cell(hc); @@ -880,6 +883,7 @@ static int dev_create(struct file *filp, struct dm_ioctl *param, size_t param_si { int r, m = DM_ANY_MINOR; struct mapped_device *md; + struct hash_cell *hc; r = check_name(param->name); if (r) @@ -903,6 +907,13 @@ static int dev_create(struct file *filp, struct dm_ioctl *param, size_t param_si __dev_status(md, param); + mutex_lock(&dm_hash_cells_mutex); + hc = dm_get_mdptr(md); + if (hc) + DMINFO("%s[%i]: %s (%s) is created successfully", + current->comm, current->pid, md->disk->disk_name, hc->name); + + mutex_unlock(&dm_hash_cells_mutex); dm_put(md); return 0; -- 2.31.1

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[PATCH openEuler-22.03-LTS-SP2 0/3] add pid enable_swap
by liubo 20 Nov '23

20 Nov '23

Liu Yuntao (1): add "enable_swap" ability Ni Cunshu (1): mm: add preferred_swap ability liubo (1): preferred_swap: share memory can specify swap device fs/proc/base.c | 188 +++++++++++++++++++++++++++++++++ include/linux/mm_types.h | 4 + include/linux/sched/coredump.h | 1 + include/linux/swap.h | 13 +++ kernel/fork.c | 4 + mm/Kconfig | 7 ++ mm/swap_slots.c | 64 ++++++++++- mm/swap_state.c | 1 + mm/swapfile.c | 86 ++++++++++++++- mm/vmscan.c | 38 +++++++ 10 files changed, 403 insertions(+), 3 deletions(-) -- 2.33.0

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[PATCH OLK-5.10 v2 0/2] Fix syntax issues in comments and print
by Li Lingfeng 20 Nov '23

20 Nov '23

Fix syntax issues in comments and print statements v1->v2: Fix syntax issues in comments of the code section that opening an exclusive opened block device for write. Li Lingfeng (2): fs: Fix syntax issues in comments and print statements. fs: Fix syntax issues in comments fs/block_dev.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) -- 2.31.1

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[PATCH OLK-5.10 RESEND 0/2] block: warn once for each partition in bio_check_ro()
by Li Nan 20 Nov '23

20 Nov '23

From: Yu Kuai <yukuai3(a)huawei.com> Yu Kuai (2): block: warn once for each partition in bio_check_ro() block: fix kabi broken in struct hd_part block/blk-core.c | 5 +++++ include/linux/genhd.h | 1 + 2 files changed, 6 insertions(+) -- 2.39.2

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[PATCH OLK-5.10] fs: Fix syntax issues in comments and print statements.
by Li Lingfeng 20 Nov '23

20 Nov '23

hulk inclusion category: cleanup bugzilla: https://gitee.com/openeuler/kernel/issues/I8HWD1 -------------------------------- There are syntax errors in the comments and print statements of the code section that detects opening write opened block devices exclusively, which need to be fixed. Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- fs/block_dev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index a0e4d3ec300e..6389551aa29e 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1669,11 +1669,11 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, void *holder, #ifdef CONFIG_BLK_DEV_DUMPINFO /* * Open an write opened block device exclusively, the - * writing process may probability corrupt the device, + * writing process may probably corrupt the device, * such as a mounted file system, give a hint here. */ if (is_conflict_excl_open(bdev, claiming, mode)) - blkdev_dump_conflict_opener(bdev, "VFS: Open an write opened " + blkdev_dump_conflict_opener(bdev, "VFS: Open a write opened " "block device exclusively"); #endif bd_finish_claiming(bdev, claiming, holder); -- 2.31.1

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[PATCH openEuler-1.0-LTS] mm/migrate.c: fix potential indeterminate pte entry in migrate_vma_insert_page()
by Tong Tiangen 20 Nov '23

20 Nov '23

From: Miaohe Lin <linmiaohe(a)huawei.com> mainline inclusion from mainline-v5.13-rc1 commit 34f5e9b9d1990d286199084efa752530ee3d8297 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8HVSL Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- If the zone device page does not belong to un-addressable device memory, the variable entry will be uninitialized and lead to indeterminate pte entry ultimately. Fix this unexpected case and warn about it. Link: https://lkml.kernel.org/r/20210325131524.48181-4-linmiaohe@huawei.com Fixes: df6ad69838fc ("mm/device-public-memory: device memory cache coherent with CPU") Signed-off-by: Miaohe Lin <linmiaohe(a)huawei.com> Reviewed-by: David Hildenbrand <david(a)redhat.com> Cc: Alistair Popple <apopple(a)nvidia.com> Cc: Jerome Glisse <jglisse(a)redhat.com> Cc: Rafael Aquini <aquini(a)redhat.com> Cc: Yang Shi <shy828301(a)gmail.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> conflict: mm/migrate.c Signed-off-by: Tong Tiangen <tongtiangen(a)huawei.com> --- mm/migrate.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/mm/migrate.c b/mm/migrate.c index dc6416ccef44..56a2033d443c 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2688,6 +2688,13 @@ static void migrate_vma_insert_page(struct migrate_vma *migrate, if (vma->vm_flags & VM_WRITE) entry = pte_mkwrite(pte_mkdirty(entry)); entry = pte_mkdevmap(entry); + } else { + /* + * For now we not support migrating to MEMORY_DEVICE_FS_DAX + * and MEMORY_DEVICE_PCI_P2PDMA device memory. + */ + pr_warn_once("Unsupported ZONE_DEVICE page type.\n"); + goto abort; } } else { entry = mk_pte(page, vma->vm_page_prot); -- 2.25.1

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[PATCH OLK-5.10 0/2] block: warn once for each partition in bio_check_ro()
by Li Nan 20 Nov '23

20 Nov '23

From: Yu Kuai <yukuai3(a)huawei.com> Yu Kuai (2): block: warn once for each partition in bio_check_ro() block: fix kabi broken in struct hd_part block/blk-core.c | 5 +++++ include/linux/genhd.h | 1 + 2 files changed, 6 insertions(+) -- 2.39.2

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