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[PATCH openEuler-25.03] mm: introduce kernel cmdline option "kernel_replication="
by Nikita Panov 28 Feb '25

28 Feb '25

kunpeng inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IBPRS0 ------------------------------------------------- The new cmdline option allows enabling/disabling kernel replication feature. By default, the replication feature is disabled. This allows to set CONFIG_KERNEL_REPLICATION=y by default, but enabling this feature is done via kernel cmdline. Signed-off-by: Nikita Panov <panov.nikita(a)huawei.com> --- .../admin-guide/kernel-parameters.txt | 7 ++ arch/arm64/configs/openeuler_defconfig | 2 +- arch/arm64/mm/pgd.c | 56 +++++++++---- include/linux/numa_kernel_replication.h | 28 ++++++- kernel/module/main.c | 11 ++- mm/numa_kernel_replication.c | 78 ++++++++++++++++++- mm/vmalloc.c | 6 +- 7 files changed, 163 insertions(+), 25 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 5bf51e171ee7..0f1f6143f53f 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2534,6 +2534,13 @@ some extension. These two features are alternatives. Current only arm64 is supported. + kernel_replication= + [ARM64] + Format: [on|off] + If CONFIG_KERNEL_REPLICATION is set, it allows + enabling/disabling the kernel replication feature + via cmdline. Default value is off. + kgdbdbgp= [KGDB,HW] kgdb over EHCI usb debug port. Format: <Controller#>[,poll interval] The controller # is the number of the ehci usb debug diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 28de20ca2d71..0f3e72a3c2b6 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -1212,7 +1212,7 @@ CONFIG_ARM64_HAFT=y CONFIG_ARCH_SUPPORTS_PER_VMA_LOCK=y CONFIG_PER_VMA_LOCK=y CONFIG_LOCK_MM_AND_FIND_VMA=y -# CONFIG_KERNEL_REPLICATION is not set +CONFIG_KERNEL_REPLICATION=y CONFIG_IOMMU_MM_DATA=y # CONFIG_ASCEND_FEATURES is not set CONFIG_PAGE_CACHE_LIMIT=y diff --git a/arch/arm64/mm/pgd.c b/arch/arm64/mm/pgd.c index adf642eba4e7..8326bd693b29 100644 --- a/arch/arm64/mm/pgd.c +++ b/arch/arm64/mm/pgd.c @@ -18,6 +18,24 @@ static struct kmem_cache *pgd_cache __ro_after_init; +static pgd_t *pgd_alloc_orig(struct mm_struct *mm) +{ + gfp_t gfp = GFP_PGTABLE_USER; + + if (PGD_SIZE == PAGE_SIZE) + return (pgd_t *)__get_free_page(gfp); + else + return kmem_cache_alloc(pgd_cache, gfp); +} + +static void pgd_free_orig(struct mm_struct *mm, pgd_t *pgd) +{ + if (PGD_SIZE == PAGE_SIZE) + free_page((unsigned long)pgd); + else + kmem_cache_free(pgd_cache, pgd); +} + #ifdef CONFIG_KERNEL_REPLICATION pgd_t *page_pgd_alloc(struct mm_struct *mm) { @@ -37,11 +55,11 @@ pgd_t *page_pgd_alloc(struct mm_struct *mm) WARN_ON_ONCE(page_to_nid(page) != nid); - per_node_pgd(mm, nid) = (pgd_t *)page_address(page); + *per_node_pgd_ptr(mm, nid) = (pgd_t *)page_address(page); } for_each_online_node(nid) - per_node_pgd(mm, nid) = per_node_pgd(mm, numa_get_memory_node(nid)); + *per_node_pgd_ptr(mm, nid) = per_node_pgd(mm, numa_get_memory_node(nid)); mm->pgd = per_node_pgd(mm, numa_get_memory_node(0));/*!!!*/ @@ -53,7 +71,7 @@ pgd_t *page_pgd_alloc(struct mm_struct *mm) return NULL; } -pgd_t *pgd_alloc(struct mm_struct *mm) +static pgd_t *pgd_alloc_replica(struct mm_struct *mm) { pgd_t **pgd_numa = (pgd_t **)kmalloc(sizeof(pgd_t *) * MAX_NUMNODES, GFP_PGTABLE_KERNEL); @@ -81,34 +99,44 @@ static void page_pgd_free(struct mm_struct *mm, pgd_t *pgd) } for_each_online_node(nid) - per_node_pgd(mm, nid) = NULL; + *per_node_pgd_ptr(mm, nid) = NULL; } -void pgd_free(struct mm_struct *mm, pgd_t *pgd) +static void pgd_free_replica(struct mm_struct *mm, pgd_t *pgd) { page_pgd_free(mm, pgd); kfree(mm->pgd_numa); } -#else /* !CONFIG_KERNEL_REPLICATION */ pgd_t *pgd_alloc(struct mm_struct *mm) { - gfp_t gfp = GFP_PGTABLE_USER; - - if (PGD_SIZE == PAGE_SIZE) - return (pgd_t *)__get_free_page(gfp); + mm->pgd_numa = NULL; + if (is_text_replicated()) + return pgd_alloc_replica(mm); else - return kmem_cache_alloc(pgd_cache, gfp); + return pgd_alloc_orig(mm); + } void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - if (PGD_SIZE == PAGE_SIZE) - free_page((unsigned long)pgd); + if (is_text_replicated()) + pgd_free_replica(mm, pgd); else - kmem_cache_free(pgd_cache, pgd); + pgd_free_orig(mm, pgd); +} + +#else /* !CONFIG_KERNEL_REPLICATION */ +pgd_t *pgd_alloc(struct mm_struct *mm) +{ + return pgd_alloc_orig(mm); +} + +void pgd_free(struct mm_struct *mm, pgd_t *pgd) +{ + pgd_free_orig(mm, pgd); } #endif /* CONFIG_KERNEL_REPLICATION */ diff --git a/include/linux/numa_kernel_replication.h b/include/linux/numa_kernel_replication.h index ee1ab0f111c7..37e7b56b5aa9 100644 --- a/include/linux/numa_kernel_replication.h +++ b/include/linux/numa_kernel_replication.h @@ -42,8 +42,31 @@ extern nodemask_t replica_nodes; nid != MAX_NUMNODES; \ nid = next_node(nid, replica_nodes)) -#define this_node_pgd(mm) ((mm)->pgd_numa[numa_node_id()]) -#define per_node_pgd(mm, nid) ((mm)->pgd_numa[nid]) +bool is_text_replicated(void); + +static inline pgd_t *this_node_pgd(struct mm_struct *mm) +{ + if (is_text_replicated()) + return mm->pgd_numa[numa_node_id()]; + else + return mm->pgd; +} + +static inline pgd_t *per_node_pgd(struct mm_struct *mm, int nid) +{ + if (is_text_replicated()) + return mm->pgd_numa[nid]; + else + return mm->pgd; +} + +static inline pgd_t **per_node_pgd_ptr(struct mm_struct *mm, int nid) +{ + if (is_text_replicated()) + return &mm->pgd_numa[nid]; + else + return &mm->pgd; +} static inline bool numa_addr_has_replica(const void *addr) { @@ -56,7 +79,6 @@ void __init numa_replicate_kernel_text(void); void numa_replicate_kernel_rodata(void); void numa_replication_fini(void); -bool is_text_replicated(void); propagation_level_t get_propagation_level(void); void numa_setup_pgd(void); void __init_or_module *numa_get_replica(void *vaddr, int nid); diff --git a/kernel/module/main.c b/kernel/module/main.c index 3aa696b127ca..c5448bc9589a 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -1217,6 +1217,9 @@ static void module_replicate_sections(struct module *mod) { int i; + if (!is_text_replicated()) + return; + for (i = 0; i < ARRAY_SIZE(sections_to_replicate); i++) module_replicate(mod->mem[sections_to_replicate[i]].base); } @@ -1228,9 +1231,11 @@ static void *module_memory_alloc(unsigned int size, enum mod_mem_type type) if (mod_mem_use_vmalloc(type)) return vzalloc(size); - for (i = 0; i < ARRAY_SIZE(sections_to_replicate); i++) { - if (type == sections_to_replicate[i]) - return module_alloc_replica(size); + if (is_text_replicated()) { + for (i = 0; i < ARRAY_SIZE(sections_to_replicate); i++) { + if (type == sections_to_replicate[i]) + return module_alloc_replica(size); + } } return module_alloc(size); } diff --git a/mm/numa_kernel_replication.c b/mm/numa_kernel_replication.c index c2d289b7b9df..17664a1300b8 100644 --- a/mm/numa_kernel_replication.c +++ b/mm/numa_kernel_replication.c @@ -65,6 +65,8 @@ static unsigned int master_node = INT_MAX; */ static int node_to_memory_node[MAX_NUMNODES]; +static bool kernel_replication_enabled; + static bool pgtables_extra; static DEFINE_SPINLOCK(debugfs_lock); @@ -254,6 +256,9 @@ static void dump_pgtables(struct mm_struct *mm, start = start & PAGE_MASK; end = (end & PAGE_MASK) - 1 + PAGE_SIZE; + if (!mm->pgd_numa) + return; + replication_log(data, "----PER-NUMA NODE KERNEL REPLICATION ENABLED----\n"); @@ -622,6 +627,18 @@ static void replicate_pgtables(void) } } +static void __init numa_replicate_kernel_text_disabled(void) +{ + int nid; + + init_mm.pgd_numa = (pgd_t **)kmalloc(sizeof(pgd_t *) * MAX_NUMNODES, GFP_PGTABLE_KERNEL); + BUG_ON(!init_mm.pgd_numa); + for_each_online_node(nid) { + init_mm.pgd_numa[nid] = init_mm.pgd; + } +} + + /* * Kernel text replication includes two steps: * 1. page tables replication for init_mm @@ -639,6 +656,11 @@ void __init numa_replicate_kernel_text(void) { int nid; + if (!kernel_replication_enabled) { + numa_replicate_kernel_text_disabled(); + return; + } + replicate_pgtables(); for_each_memory_node(nid) { @@ -667,6 +689,10 @@ void numa_replicate_kernel_rodata(void) { int nid; + if (!kernel_replication_enabled) { + return; + } + for_each_memory_node(nid) { if (nid == master_node) continue; @@ -678,7 +704,7 @@ void numa_replicate_kernel_rodata(void) void numa_setup_pgd(void) { - numa_load_replicated_pgd(init_mm.pgd_numa[numa_node_id()]); + numa_load_replicated_pgd(this_node_pgd(&init_mm)); } void __init_or_module *numa_get_replica(void *vaddr, int nid) @@ -693,8 +719,48 @@ void __init_or_module *numa_get_replica(void *vaddr, int nid) return node_desc[nid].text_vaddr + offset; } +static int __init setup_kernel_replication(char *str) +{ + int ret = 0; + + if (!str) + goto out; + if (!strcmp(str, "on")) { + kernel_replication_enabled = true; + pr_info("Kernel replication enabled via cmdline\n"); + ret = 1; + } else if (!strcmp(str, "off")) { + kernel_replication_enabled = false; + pr_info("Kernel replication disabled via cmdline\n"); + ret = 1; + } +out: + if (!ret) + pr_warn("kernel_replication= cannot parse, ignored\n"); + return ret; +} +__setup("kernel_replication=", setup_kernel_replication); + + nodemask_t __ro_after_init replica_nodes = { { [0] = 1UL } }; +/* + * Let us pretend, that we have only single node fore replicas. + * Do not replicate anything. + */ +static void __init numa_replication_init_disabled(void) +{ + int nid; + + __node_set(0, &replica_nodes); + for_each_online_node(nid) { + node_to_memory_node[nid] = 0; + } + + node_desc[0].text_vaddr = lm_alias((void *)KERNEL_TEXT_START); + node_desc[0].rodata_vaddr = lm_alias((void *)KERNEL_RODATA_START); +} + void __init numa_replication_init(void) { int nid; @@ -707,6 +773,16 @@ void __init numa_replication_init(void) #endif nodes_clear(replica_nodes); + if (kernel_replication_enabled) + pr_info("WARNING! WARNING! WARNING! Kernel replication enabled WARNING! WARNING! WARNING!\n"); + else + pr_info("Kernel replication disabled\n"); + + if (!kernel_replication_enabled) { + numa_replication_init_disabled(); + return; + } + for_each_node_state(nid, N_MEMORY) { __node_set(nid, &replica_nodes); } diff --git a/mm/vmalloc.c b/mm/vmalloc.c index a136e86e6480..b170cc1ef447 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -493,7 +493,7 @@ void vunmap_range_replicas(unsigned long addr, unsigned long end) flush_cache_vunmap(addr, end); for_each_memory_node(nid) - vunmap_range_noflush_pgd(init_mm.pgd_numa[nid], addr, end); + vunmap_range_noflush_pgd(per_node_pgd(&init_mm, nid), addr, end); flush_tlb_kernel_range(addr, end); } #endif /* CONFIG_KERNEL_REPLICATION && CONFIG_ARM64 */ @@ -2378,7 +2378,7 @@ static void free_unmap_vmap_area(struct vmap_area *va) * empty entries here, which is totally fine */ for_each_memory_node(node) - vunmap_range_noflush_pgd(init_mm.pgd_numa[node], + vunmap_range_noflush_pgd(per_node_pgd(&init_mm, node), va->va_start, va->va_end); } else { vunmap_range_noflush(va->va_start, va->va_end); @@ -4123,7 +4123,7 @@ int __vmalloc_node_replicate_range(const void *addr, gfp_t gfp_mask, for (i = 0; i < area->nr_pages; i++) list_add(&pages[i]->lru, &area->pages[i]->lru); - vunmap_range_noflush_pgd(init_mm.pgd_numa[node], + vunmap_range_noflush_pgd(per_node_pgd(&init_mm, node), area_start, area_end); /* -- 2.34.1

2 1

[PATCH OLK-5.10 0/2] KVM: arm64: pvsched bugfix and module param
by Dongxu Sun 28 Feb '25

28 Feb '25

Yanan Wang (1): KVM:arm64:Add a module param to enable/disable pv_preempted dynamically Zhiqiang Ni (1): KVM: ARM: mark vCPU preempted if average guest steal time is considerable arch/arm64/include/asm/kvm_host.h | 6 ++++- arch/arm64/kvm/arm.c | 45 ++++++++++++++++++++++++++++--- arch/arm64/kvm/pvsched.c | 2 ++ arch/arm64/kvm/pvtime.c | 8 ++++++ include/trace/events/kvm.h | 24 +++++++++++++++++ 5 files changed, 80 insertions(+), 5 deletions(-) -- 2.33.0

2 3

[PATCH OLK-6.6 00/12] Add support for IPIv
by yangjinqian 28 Feb '25

28 Feb '25

Patch#1 Probe and configure IPIV capacity on HIP12 Patch#2 Allocate VM table and save vpeid in it Patch#3 Add support for ipiv direct mode Patch#4 Register ipiv exception interrupt Patch#5 Set base address of vm table and targe ITS when vpe schedule and deschedule Patch#6 Pre-allocate vpe id for direct mode Patch#7 Add interface KVM_CAP_ARM_IPIV_MODE Patch#8 Change ipiv irq type Patch#9 IPI performance benchmark Patch#10 Check GICD_CTLR_nASSGIreq when vpe schedule and deschedule Patch#11 Add a check before disabling ICC_SGI1R_EL1 trap Patch#12 use __GENKSYMS__ to revert the kabi change Xiang Chen (11): kvm: hisi_virt: Probe and configure IPIV capacity on HIP12 kvm: hisi_virt: Allocate VM table and save vpeid in it kvm: hisi_virt: Add support for ipiv direct mode kvm: hisi_virt: Register ipiv exception interrupt irqchip: gicv3-its: Set base address of vm table and targe ITS when vpe schedule and deschedule kvm: hisi_virt: Pre-allocate vpe id for direct mode kvm: arm64: Add interface KVM_CAP_ARM_IPIV_MODE kvm: hisi_virt: Change ipiv irq type IPI performance benchmark irqchip: gicv3-its: Check GICD_CTLR_nASSGIreq when vpe schedule and deschedule irqchip: gicv3-its: Add a check before disabling ICC_SGI1R_EL1 trap yangjinqian (1): irqchip: gicv3-its: use __GENKSYMS__ to revert the kabi change .../admin-guide/kernel-parameters.txt | 8 + arch/Kconfig | 10 ++ arch/arm64/include/asm/kvm_host.h | 1 + arch/arm64/kvm/arm.c | 23 +++ arch/arm64/kvm/hisilicon/hisi_virt.c | 41 ++++- arch/arm64/kvm/hisilicon/hisi_virt.h | 9 + arch/arm64/kvm/sys_regs.c | 33 +++- arch/arm64/kvm/vgic/vgic-init.c | 84 +++++++++- arch/arm64/kvm/vgic/vgic-mmio-v3.c | 2 + drivers/irqchip/irq-gic-v3-its.c | 121 +++++++++++++- drivers/irqchip/irq-gic-v3.c | 37 +++++ include/kvm/arm_vgic.h | 2 + include/linux/irqchip/arm-gic-v3.h | 23 +++ include/linux/irqchip/arm-gic-v4.h | 7 + include/uapi/linux/kvm.h | 2 + kernel/Makefile | 1 + kernel/ipi_benchmark.c | 155 ++++++++++++++++++ 17 files changed, 539 insertions(+), 20 deletions(-) create mode 100644 kernel/ipi_benchmark.c -- 2.33.0

2 13

[PATCH OLK-6.6 V2 00/24] Add support for heterogeneous live migration
by yangjinqian 28 Feb '25

28 Feb '25

Patch#1 Allow userspace to get the writable masks for feature ID registers Patch#2 Document KVM_ARM_GET_REG_WRITABLE_MASKS Patch#3 Use guest ID register values for the sake of emulation Patch#4 Advertise selected DebugVer in DBGDIDR.Version Patch#5 Reject attempts to set invalid debug arch version Patch#6 Bump up the default KVM sanitised debug version to v8p8 Patch#7 Allow userspace to change ID_AA64ISAR{0-2}_EL1 Patch#8 Allow userspace to change ID_AA64MMFR{0-2}_EL1 Patch#9 Allow userspace to change ID_AA64PFR0_EL1 Patch#10 Allow userspace to change ID_AA64ZFR0_EL1 Patch#11 Document vCPU feature selection UAPIs Patch#12 Make the exposed feature bits in AA64DFR0_EL1 writable from userspace Patch#13 Disable MPAM visibility by default and ignore VMM writes Patch#14 Use read-only helper for reading VM ID registers Patch#15 Add helper for writing ID regs Patch#16 Treat CTR_EL0 as a VM feature ID register Patch#17 Rename functions for invariant sys regs Patch#18 Make the L1Ip feature bits in CTR_EL0 writable from userspace Patch#19 Show writable masks for feature registers Patch#20 Make HCX writable from userspace Patch#21 Remove duplicated AA64MMFR1_EL1 XNX Patch#22 Add support for HIP09 Spectre-BHB mitigation Patch#23 add cnp verification on Hisilicon erratum 162100125 Patch#24 use __GENKSYMS__ to revert struct kvm kabi change James Morse (1): KVM: arm64: Disable MPAM visibility by default and ignore VMM writes Jing Zhang (5): KVM: arm64: Allow userspace to get the writable masks for feature ID registers KVM: arm64: Document KVM_ARM_GET_REG_WRITABLE_MASKS KVM: arm64: Use guest ID register values for the sake of emulation KVM: arm64: Allow userspace to change ID_AA64MMFR{0-2}_EL1 KVM: arm64: Allow userspace to change ID_AA64PFR0_EL1 Oliver Upton (8): KVM: arm64: Advertise selected DebugVer in DBGDIDR.Version KVM: arm64: Reject attempts to set invalid debug arch version KVM: arm64: Bump up the default KVM sanitised debug version to v8p8 KVM: arm64: Allow userspace to change ID_AA64ISAR{0-2}_EL1 KVM: arm64: Allow userspace to change ID_AA64ZFR0_EL1 KVM: arm64: Document vCPU feature selection UAPIs KVM: arm64: Use read-only helper for reading VM ID registers KVM: arm64: Add helper for writing ID regs Russell King (1): KVM: arm64: Remove duplicated AA64MMFR1_EL1 XNX Sebastian Ott (3): KVM: arm64: Treat CTR_EL0 as a VM feature ID register KVM: arm64: rename functions for invariant sys regs KVM: arm64: show writable masks for feature registers Shameer Kolothum (2): KVM: arm64: Make the exposed feature bits in AA64DFR0_EL1 writable from userspace KVM: arm64: Make the L1Ip feature bits in CTR_EL0 writable from userspace yangjinqian (4): KVM: arm64: Make HCX writable from userspace arm64: Add support for HIP09 Spectre-BHB mitigation arm64: add cnp verification on Hisilicon erratum 162100125 KVM: arm64: use __GENKSYMS__ to revert struct kvm kabi change Documentation/virt/kvm/api.rst | 52 ++++ Documentation/virt/kvm/arm/index.rst | 1 + Documentation/virt/kvm/arm/vcpu-features.rst | 48 +++ arch/arm64/include/asm/cpufeature.h | 14 + arch/arm64/include/asm/kvm_emulate.h | 3 +- arch/arm64/include/asm/kvm_host.h | 24 ++ arch/arm64/include/uapi/asm/kvm.h | 32 ++ arch/arm64/kernel/cpu_errata.c | 13 +- arch/arm64/kernel/proton-pack.c | 1 + arch/arm64/kvm/arm.c | 10 + arch/arm64/kvm/pmu-emul.c | 2 +- arch/arm64/kvm/sys_regs.c | 305 +++++++++++++++---- include/uapi/linux/kvm.h | 3 + 13 files changed, 448 insertions(+), 60 deletions(-) create mode 100644 Documentation/virt/kvm/arm/vcpu-features.rst -- 2.33.0

2 25

[PATCH OLK-6.6 v2 00/24] Add support for heterogeneous live migration
by yangjinqian 28 Feb '25

28 Feb '25

Patch#1 Allow userspace to get the writable masks for feature ID registers Patch#2 Document KVM_ARM_GET_REG_WRITABLE_MASKS Patch#3 Use guest ID register values for the sake of emulation Patch#4 Advertise selected DebugVer in DBGDIDR.Version Patch#5 Reject attempts to set invalid debug arch version Patch#6 Bump up the default KVM sanitised debug version to v8p8 Patch#7 Allow userspace to change ID_AA64ISAR{0-2}_EL1 Patch#8 Allow userspace to change ID_AA64MMFR{0-2}_EL1 Patch#9 Allow userspace to change ID_AA64PFR0_EL1 Patch#10 Allow userspace to change ID_AA64ZFR0_EL1 Patch#11 Document vCPU feature selection UAPIs Patch#12 Make the exposed feature bits in AA64DFR0_EL1 writable from userspace Patch#13 Disable MPAM visibility by default and ignore VMM writes Patch#14 Use read-only helper for reading VM ID registers Patch#15 Add helper for writing ID regs Patch#16 Treat CTR_EL0 as a VM feature ID register Patch#17 Rename functions for invariant sys regs Patch#18 Make the L1Ip feature bits in CTR_EL0 writable from userspace Patch#19 Show writable masks for feature registers Patch#20 Make HCX writable from userspace Patch#21 Remove duplicated AA64MMFR1_EL1 XNX Patch#22 Add support for HIP09 Spectre-BHB mitigation Patch#23 add cnp verification on Hisilicon erratum 162100125 Patch#24 use __GENKSYMS__ to revert struct kvm kabi change James Morse (1): KVM: arm64: Disable MPAM visibility by default and ignore VMM writes Jing Zhang (5): KVM: arm64: Allow userspace to get the writable masks for feature ID registers KVM: arm64: Document KVM_ARM_GET_REG_WRITABLE_MASKS KVM: arm64: Use guest ID register values for the sake of emulation KVM: arm64: Allow userspace to change ID_AA64MMFR{0-2}_EL1 KVM: arm64: Allow userspace to change ID_AA64PFR0_EL1 Oliver Upton (8): KVM: arm64: Advertise selected DebugVer in DBGDIDR.Version KVM: arm64: Reject attempts to set invalid debug arch version KVM: arm64: Bump up the default KVM sanitised debug version to v8p8 KVM: arm64: Allow userspace to change ID_AA64ISAR{0-2}_EL1 KVM: arm64: Allow userspace to change ID_AA64ZFR0_EL1 KVM: arm64: Document vCPU feature selection UAPIs KVM: arm64: Use read-only helper for reading VM ID registers KVM: arm64: Add helper for writing ID regs Russell King (1): KVM: arm64: Remove duplicated AA64MMFR1_EL1 XNX Sebastian Ott (3): KVM: arm64: Treat CTR_EL0 as a VM feature ID register KVM: arm64: rename functions for invariant sys regs KVM: arm64: show writable masks for feature registers Shameer Kolothum (2): KVM: arm64: Make the exposed feature bits in AA64DFR0_EL1 writable from userspace KVM: arm64: Make the L1Ip feature bits in CTR_EL0 writable from userspace yangjinqian (4): KVM: arm64: Make HCX writable from userspace arm64: Add support for HIP09 Spectre-BHB mitigation arm64: add cnp verification on Hisilicon erratum 162100125 KVM: arm64: use __GENKSYMS__ to revert struct kvm kabi change Documentation/virt/kvm/api.rst | 52 ++++ Documentation/virt/kvm/arm/index.rst | 1 + Documentation/virt/kvm/arm/vcpu-features.rst | 48 +++ arch/arm64/include/asm/cpufeature.h | 14 + arch/arm64/include/asm/kvm_emulate.h | 3 +- arch/arm64/include/asm/kvm_host.h | 24 ++ arch/arm64/include/uapi/asm/kvm.h | 32 ++ arch/arm64/kernel/cpu_errata.c | 13 +- arch/arm64/kernel/proton-pack.c | 1 + arch/arm64/kvm/arm.c | 10 + arch/arm64/kvm/pmu-emul.c | 2 +- arch/arm64/kvm/sys_regs.c | 305 +++++++++++++++---- include/uapi/linux/kvm.h | 3 + 13 files changed, 448 insertions(+), 60 deletions(-) create mode 100644 Documentation/virt/kvm/arm/vcpu-features.rst -- 2.33.0

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[openeuler:OLK-6.6] BUILD REGRESSION 305d30148bc6eb27489370e9370f84eb88c3a467
by kernel test robot 28 Feb '25

28 Feb '25

tree/branch: https://gitee.com/openeuler/kernel.git OLK-6.6 branch HEAD: 305d30148bc6eb27489370e9370f84eb88c3a467 !14820 [OLK-6.6]Hygon: Support kernel boot verification and secret injection for Hygon CSV3 VM Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- include-linux-fortify-string.h:warning:call-to-__write_overflow_field-declared-with-warning-attribute:detected-write-beyond-size-of-field-(1st-parameter)-maybe-use-struct_group() | |-- mm-dynamic_pool.c:warning:variable-ret-is-uninitialized-when-used-here | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-memcontrol.c:warning:no-previous-prototype-for-function-hisi_oom_recover | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_limit_mbytes_sysctl_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_reclaim_enable_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_reclaim_sysctl_handler | |-- mm-share_pool.c:warning:Function-parameter-or-member-node_id-not-described-in-sp_area_alloc | |-- mm-share_pool.c:warning:Function-parameter-or-member-spg_id-not-described-in-mg_sp_unshare | |-- mm-share_pool.c:warning:duplicate-section-name-Return | |-- mm-share_pool.c:warning:expecting-prototype-for-mp_sp_group_id_by_pid().-Prototype-was-for-mg_sp_group_id_by_pid()-instead | |-- mm-share_pool.c:warning:variable-is_hugepage-set-but-not-used | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-allnoconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-randconfig-001-20250227 | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-randconfig-002-20250227 | |-- drivers-net-ethernet-huawei-hinic-hinic_main.c:error:member-reference-type-int-is-not-a-pointer | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-randconfig-003-20250227 | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-randconfig-004-20250227 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- arm64-randconfig-051-20250228 | |-- Documentation-devicetree-bindings-dma-snps-dw-axi-dmac.yaml:snps-priority:multiple-incompatible-types:uint32-array | `-- Documentation-devicetree-bindings-net-snps-dwmac.yaml:snps-priority:multiple-incompatible-types:uint32 |-- arm64-randconfig-052-20250228 | |-- Documentation-devicetree-bindings-dma-snps-dw-axi-dmac.yaml:snps-priority:multiple-incompatible-types:uint32-array | `-- Documentation-devicetree-bindings-net-snps-dwmac.yaml:snps-priority:multiple-incompatible-types:uint32 |-- arm64-randconfig-053-20250228 | |-- Documentation-devicetree-bindings-dma-snps-dw-axi-dmac.yaml:snps-priority:multiple-incompatible-types:uint32-array | `-- Documentation-devicetree-bindings-net-snps-dwmac.yaml:snps-priority:multiple-incompatible-types:uint32 |-- arm64-randconfig-054-20250228 | |-- Documentation-devicetree-bindings-dma-snps-dw-axi-dmac.yaml:snps-priority:multiple-incompatible-types:uint32-array | `-- Documentation-devicetree-bindings-net-snps-dwmac.yaml:snps-priority:multiple-incompatible-types:uint32 |-- arm64-randconfig-055-20250228 | |-- Documentation-devicetree-bindings-dma-snps-dw-axi-dmac.yaml:snps-priority:multiple-incompatible-types:uint32-array | `-- Documentation-devicetree-bindings-net-snps-dwmac.yaml:snps-priority:multiple-incompatible-types:uint32 |-- loongarch-allmodconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-cache_limit_mbytes_sysctl_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-cache_reclaim_enable_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-cache_reclaim_sysctl_handler | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- loongarch-allnoconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- loongarch-randconfig-001-20250227 | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- loongarch-randconfig-002-20250227 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-allnoconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-allyesconfig | |-- include-linux-fortify-string.h:warning:call-to-__write_overflow_field-declared-with-warning-attribute:detected-write-beyond-size-of-field-(1st-parameter)-maybe-use-struct_group() | |-- mm-dynamic_pool.c:warning:variable-ret-is-uninitialized-when-used-here | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_limit_mbytes_sysctl_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_reclaim_enable_handler | |-- mm-page_cache_limit.c:warning:no-previous-prototype-for-function-cache_reclaim_sysctl_handler | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-buildonly-randconfig-001-20250227 | |-- include-linux-psp-hygon.h:warning:no-previous-prototype-for-function-psp_register_cmd_notifier | |-- include-linux-psp-hygon.h:warning:no-previous-prototype-for-function-psp_unregister_cmd_notifier | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-buildonly-randconfig-002-20250227 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-buildonly-randconfig-003-20250227 | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-memcontrol.c:warning:mem_cgroup_check_swap_for_v1-defined-but-not-used | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-buildonly-randconfig-004-20250227 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-buildonly-randconfig-005-20250227 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-buildonly-randconfig-006-20250227 | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial |-- x86_64-defconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task | |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead | `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial `-- x86_64-randconfig-161-20250228 |-- mm-compaction.c-(null)()-warn:(struct-ctl_table)-proc_handler-cannot-be-NULL.-Expression:vm_compaction-proc_handler |-- mm-compaction.c-(null)()-warn:(struct-ctl_table)-procname-cannot-be-NULL.-Expression:vm_compaction-procname |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- mm-memcontrol.c:warning:mem_cgroup_check_swap_for_v1-defined-but-not-used |-- mm-oom_kill.c:warning:Function-parameter-or-member-oc-not-described-in-oom_next_task |-- mm-oom_kill.c:warning:Function-parameter-or-member-points-not-described-in-oom_next_task |-- mm-oom_kill.c:warning:Function-parameter-or-member-task-not-described-in-oom_next_task |-- mm-oom_kill.c:warning:expecting-prototype-for-We-choose-the-task-in-low().-Prototype-was-for-oom_next_task()-instead `-- mm-vmalloc.c:warning:Function-parameter-or-member-pgoff-not-described-in-remap_vmalloc_hugepage_range_partial elapsed time: 822m configs tested: 19 configs skipped: 123 tested configs: arm64 allmodconfig clang-18 arm64 allnoconfig gcc-14.2.0 arm64 randconfig-001-20250227 gcc-14.2.0 arm64 randconfig-002-20250227 clang-19 arm64 randconfig-003-20250227 gcc-14.2.0 arm64 randconfig-004-20250227 gcc-14.2.0 loongarch allmodconfig gcc-14.2.0 loongarch allnoconfig gcc-14.2.0 loongarch randconfig-001-20250227 gcc-14.2.0 loongarch randconfig-002-20250227 gcc-14.2.0 x86_64 allnoconfig clang-19 x86_64 allyesconfig clang-19 x86_64 buildonly-randconfig-001-20250227 clang-19 x86_64 buildonly-randconfig-002-20250227 clang-19 x86_64 buildonly-randconfig-003-20250227 gcc-12 x86_64 buildonly-randconfig-004-20250227 gcc-12 x86_64 buildonly-randconfig-005-20250227 clang-19 x86_64 buildonly-randconfig-006-20250227 gcc-12 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH openEuler-1.0-LTS] ata: sata_dwc_460ex: Fix crash due to OOB write
by Li Lingfeng 28 Feb '25

28 Feb '25

From: Christian Lamparter <chunkeey(a)gmail.com> stable inclusion from stable-v4.19.238 commit 596c7efd69aae94f4b0e91172b075eb197958b99 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBP6AM CVE: CVE-2022-49073 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 7aa8104a554713b685db729e66511b93d989dd6a upstream. the driver uses libata's "tag" values from in various arrays. Since the mentioned patch bumped the ATA_TAG_INTERNAL to 32, the value of the SATA_DWC_QCMD_MAX needs to account for that. Otherwise ATA_TAG_INTERNAL usage cause similar crashes like this as reported by Tice Rex on the OpenWrt Forum and reproduced (with symbols) here: | BUG: Kernel NULL pointer dereference at 0x00000000 | Faulting instruction address: 0xc03ed4b8 | Oops: Kernel access of bad area, sig: 11 [#1] | BE PAGE_SIZE=4K PowerPC 44x Platform | CPU: 0 PID: 362 Comm: scsi_eh_1 Not tainted 5.4.163 #0 | NIP: c03ed4b8 LR: c03d27e8 CTR: c03ed36c | REGS: cfa59950 TRAP: 0300 Not tainted (5.4.163) | MSR: 00021000 <CE,ME> CR: 42000222 XER: 00000000 | DEAR: 00000000 ESR: 00000000 | GPR00: c03d27e8 cfa59a08 cfa55fe0 00000000 0fa46bc0 [...] | [..] | NIP [c03ed4b8] sata_dwc_qc_issue+0x14c/0x254 | LR [c03d27e8] ata_qc_issue+0x1c8/0x2dc | Call Trace: | [cfa59a08] [c003f4e0] __cancel_work_timer+0x124/0x194 (unreliable) | [cfa59a78] [c03d27e8] ata_qc_issue+0x1c8/0x2dc | [cfa59a98] [c03d2b3c] ata_exec_internal_sg+0x240/0x524 | [cfa59b08] [c03d2e98] ata_exec_internal+0x78/0xe0 | [cfa59b58] [c03d30fc] ata_read_log_page.part.38+0x1dc/0x204 | [cfa59bc8] [c03d324c] ata_identify_page_supported+0x68/0x130 | [...] This is because sata_dwc_dma_xfer_complete() NULLs the dma_pending's next neighbour "chan" (a *dma_chan struct) in this '32' case right here (line ~735): > hsdevp->dma_pending[tag] = SATA_DWC_DMA_PENDING_NONE; Then the next time, a dma gets issued; dma_dwc_xfer_setup() passes the NULL'd hsdevp->chan to the dmaengine_slave_config() which then causes the crash. With this patch, SATA_DWC_QCMD_MAX is now set to ATA_MAX_QUEUE + 1. This avoids the OOB. But please note, there was a worthwhile discussion on what ATA_TAG_INTERNAL and ATA_MAX_QUEUE is. And why there should not be a "fake" 33 command-long queue size. Ideally, the dw driver should account for the ATA_TAG_INTERNAL. In Damien Le Moal's words: "... having looked at the driver, it is a bigger change than just faking a 33rd "tag" that is in fact not a command tag at all." Fixes: 28361c403683c ("libata: add extra internal command") Cc: stable(a)kernel.org # 4.18+ BugLink: https://github.com/openwrt/openwrt/issues/9505 Signed-off-by: Christian Lamparter <chunkeey(a)gmail.com> Signed-off-by: Damien Le Moal <damien.lemoal(a)opensource.wdc.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- drivers/ata/sata_dwc_460ex.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c index 6f142aa54f5f..5bc8633c6352 100644 --- a/drivers/ata/sata_dwc_460ex.c +++ b/drivers/ata/sata_dwc_460ex.c @@ -149,7 +149,11 @@ struct sata_dwc_device { #endif }; -#define SATA_DWC_QCMD_MAX 32 +/* + * Allow one extra special slot for commands and DMA management + * to account for libata internal commands. + */ +#define SATA_DWC_QCMD_MAX (ATA_MAX_QUEUE + 1) struct sata_dwc_device_port { struct sata_dwc_device *hsdev; -- 2.31.1

2 1

[openeuler:OLK-5.10] BUILD REGRESSION 22f7213922f74e0c6d02a762d8442e9666efed26
by kernel test robot 28 Feb '25

28 Feb '25

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: 22f7213922f74e0c6d02a762d8442e9666efed26 !15246 UBI/UBIFS mainline patch backport Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allnoconfig | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-BPF_NET_GLOBAL_PROG-when-selected-by-SCHED_TASK_RELATIONSHIP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PCI_IOV-when-selected-by-CRYPTO_DEV_HISI_MIGRATION | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-TASK_PLACEMENT_BY_CPU_RANGE-when-selected-by-BPF_SCHED | |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch |-- arm64-defconfig | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch |-- arm64-randconfig-001-20250227 | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch |-- arm64-randconfig-003-20250227 | |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch |-- arm64-randconfig-004-20250227 | |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch |-- x86_64-allnoconfig | |-- Warning:arch-x86-kernel-cpu-resctrl-monitor.c-references-a-file-that-doesn-t-exist:Documentation-x86-resctrl.rst | |-- drivers-scsi-linkdata-ps3stor-linux-ps3_base.c:linux-version.h-not-needed. | |-- drivers-scsi-linkdata-ps3stor-linux-ps3_base.c:ps3_driver_log.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-linux-ps3_base.c:ps3_scsi_cmd_err.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-linux-ps3_cli.c:linux-version.h-not-needed. | |-- drivers-scsi-linkdata-ps3stor-linux-ps3_driver_log.c:linux-version.h-not-needed. | |-- drivers-scsi-linkdata-ps3stor-linux-ps3_dump.c:linux-uaccess.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_debug.c:ps3_htp_def.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_debug.c:ps3_instance_manager.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager.c:scsi-scsi_tcq.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager.h:linux-version.h-not-needed. | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager_sas.h:linux-version.h-not-needed. | |-- drivers-scsi-linkdata-ps3stor-ps3_device_update.c:linux-mutex.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_device_update.c:ps3_device_update.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_instance_manager.h:ps3_cmd_channel.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_instance_manager.h:ps3_inner_data.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_instance_manager.h:ps3_irq.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:ps3_scsih.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_ioctl.c:linux-mutex.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:linux-kernel.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_mgr_channel.c:ps3_cmd_complete.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_mgr_cmd.c:linux-mutex.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:linux-version.h-not-needed. | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:ps3_driver_log.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_rb_tree.h:linux-version.h-not-needed. | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:ps3_ioc_state.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:ps3_recovery.h-is-included-more-than-once. | |-- drivers-scsi-linkdata-ps3stor-ps3_sas_transport.h:linux-version.h-not-needed. | |-- drivers-scsi-linkdata-ps3stor-ps3_scsi_cmd_err.c:linux-version.h-not-needed. | |-- drivers-scsi-linkdata-ps3stor-ps3_scsih.c:ps3_module_para.h-is-included-more-than-once. | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- mm-page_alloc.c:linux-vmalloc.h-is-included-more-than-once. | |-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__zone_set_pageset_high_and_batch |-- x86_64-allyesconfig | |-- arch-x86-kernel-cpu-resctrl-rdtgroup.c:warning:variable-h-set-but-not-used | |-- arch-x86-kernel-fpu-core.c:warning:no-previous-prototype-for-function-get_fpu_registers_pos | |-- arch-x86-kernel-fpu-core.c:warning:no-previous-prototype-for-function-save_fpregs_to_fpkernelstate | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_base.c:error:no-previous-prototype-for-function-ps3_pci_init-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_base.c:error:no-previous-prototype-for-function-ps3_pci_init_complete-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_base.c:error:no-previous-prototype-for-function-ps3_pci_init_complete_exit-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_cli_debug.c:error:no-previous-prototype-for-function-ps3_dump_context_show-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-function-ps3_dump_file_close-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-function-ps3_dump_file_open-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-function-ps3_dump_file_write-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-function-ps3_dump_filename_build-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-function-ps3_dump_local_time-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_complete.c:error:no-previous-prototype-for-function-ps3_resp_status_convert-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_complete.c:error:no-previous-prototype-for-function-ps3_trigger_irq_poll-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_statistics.c:error:no-previous-prototype-for-function-ps3_cmd_stat_content_clear-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_statistics.c:error:no-previous-prototype-for-function-ps3_io_recv_ok_stat_inc-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_debug.c:error:no-previous-prototype-for-function-ps3_dump_dir_length-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager.c:error:no-previous-prototype-for-function-ps3_scsi_private_init_pd-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager.c:error:no-previous-prototype-for-function-ps3_scsi_private_init_vd-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager_sas.c:error:no-previous-prototype-for-function-ps3_sas_expander_phys_refresh-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:error:no-previous-prototype-for-function-ps3_ioc_resource_prepare_hba-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:error:no-previous-prototype-for-function-ps3_ioc_resource_prepare_raid-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:error:no-previous-prototype-for-function-ps3_ioc_resource_prepare_switch-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_manager.c:error:no-previous-prototype-for-function-ps3_hard_reset_to_ready-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_ioctl.c:error:no-previous-prototype-for-function-ps3_clean_mgr_cmd-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_module_para.c:error:no-previous-prototype-for-function-ps3_cli_ver_query-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_cmd_waitq_abort-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_hba_qos_decision-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_hba_qos_vd_init-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_hba_qos_vd_reset-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_hba_qos_waitq_clear_all-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_hba_qos_waitq_notify-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_pd_quota_waitq_clean-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_pd_quota_waitq_clear_all-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_qos_all_pd_rc_get-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_qos_cmd_waitq_get-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_qos_exclusive_cmdword_get-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_qos_pd_waitq_ratio_update-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_qos_tg_decision-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_qos_vd_cmdword_get-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-function-ps3_r1x_conflict_queue_hash_bit_lock-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-function-ps3_r1x_hash_bit_check-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-function-ps3_r1x_hash_bit_lock-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-function-ps3_r1x_hash_bit_unlock-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-function-ps3_r1x_hash_range_lock-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-function-ps3_r1x_hash_range_unlock-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-function-ps3_range_check_and_insert-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_rb_tree.c:error:no-previous-prototype-for-function-rbtDelNodeDo-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-function-ps3_hard_recovery_state_finish-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-function-ps3_recovery_context_alloc-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-function-ps3_recovery_context_delete-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-function-ps3_recovery_context_free-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-function-ps3_recovery_irq_queue_destroy-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-function-ps3_recovery_state_transfer-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_sas_transport.c:error:no-previous-prototype-for-function-ps3_sas_update_phy_info-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_scsi_cmd_err.c:error:no-previous-prototype-for-function-ps3_set_task_manager_busy-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_scsi_cmd_err.c:error:no-previous-prototype-for-function-ps3_wait_for_outstanding_complete-Werror-Wmissing-prototypes | |-- mm-damon-core-test.h:warning:comparison-of-distinct-pointer-types-(-typeof-(__left)-(aka-unsigned-int-)-and-typeof-(__right)-(aka-int-)) | |-- mm-hugetlb.c:warning:variable-gfp-set-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | |-- mm-mem_reliable.c:warning:arithmetic-between-different-enumeration-types-(-enum-node_stat_item-and-enum-lru_list-) | |-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__zone_set_pageset_high_and_batch |-- x86_64-buildonly-randconfig-001-20250227 | |-- mm-damon-core-test.h:warning:comparison-of-distinct-pointer-types-(-typeof-(__left)-(aka-unsigned-int-)-and-typeof-(__right)-(aka-int-)) | |-- mm-hugetlb.c:warning:variable-gfp-set-but-not-used | |-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__zone_set_pageset_high_and_batch |-- x86_64-buildonly-randconfig-002-20250227 | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- mm-damon-core-test.h:warning:comparison-of-distinct-pointer-types-(-typeof-(__left)-(aka-unsigned-int-)-and-typeof-(__right)-(aka-int-)) | |-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__zone_set_pageset_high_and_batch |-- x86_64-buildonly-randconfig-003-20250227 | |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch |-- x86_64-buildonly-randconfig-004-20250227 | |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch |-- x86_64-buildonly-randconfig-005-20250227 | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | |-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-function-__zone_set_pageset_high_and_batch |-- x86_64-buildonly-randconfig-006-20250227 | |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch |-- x86_64-defconfig | |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages | `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch `-- x86_64-randconfig-161-20250228 |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file |-- mm-page_alloc.c:warning:no-previous-prototype-for-__drain_all_pages `-- mm-page_alloc.c:warning:no-previous-prototype-for-__zone_set_pageset_high_and_batch elapsed time: 809m configs tested: 16 configs skipped: 128 tested configs: arm64 allmodconfig clang-18 arm64 allnoconfig gcc-14.2.0 arm64 defconfig gcc-14.2.0 arm64 randconfig-001-20250227 gcc-14.2.0 arm64 randconfig-002-20250227 clang-19 arm64 randconfig-003-20250227 gcc-14.2.0 arm64 randconfig-004-20250227 gcc-14.2.0 x86_64 allnoconfig clang-19 x86_64 allyesconfig clang-19 x86_64 buildonly-randconfig-001-20250227 clang-19 x86_64 buildonly-randconfig-002-20250227 clang-19 x86_64 buildonly-randconfig-003-20250227 gcc-12 x86_64 buildonly-randconfig-004-20250227 gcc-12 x86_64 buildonly-randconfig-005-20250227 clang-19 x86_64 buildonly-randconfig-006-20250227 gcc-12 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH openEuler-25.03 v4 0/4] Add TrIO support in EROFS
by Hongbo Li 27 Feb '25

27 Feb '25

TrIO can accelerate the cold start of containers during on-demand loading. It aggregates the read I/O operations required for container runtime during the first container launch. In the following startups, TrIO pulls the necessary I/O data to the container node in a single large I/O operation and uses this I/O information to construct the runtime rootfs. By improving the efficiency of network I/O, TrIO speeds up container startup in on-demand loading scenarios. TrIO consists of both kernel-space and user-space code. The kernel-space code has been adapted at the overlayfs layer, introducing the CONFIG_EROFS_TRIO configuration to provide isolation. The user-space code requires adaptation by the user, and detailed usage methods are introduced in the tools/trio/README.md section. Patches 1~2 correspond to the kernel adaptations, while patches 3~4 are the scripts and best practices that TrIO relies on for its operation. v4: - Avoid the memleak of meta_buf. - Fix some exception handle from reviewer's suggestions. - Use spinlock in kprobe context. v3: - Obtain and keep the trio_object in open. - Only close readahead in trio case. Hongbo Li (4): erofs:trio: Add trio_manager in erofs erofs: trio: Support TrIO feature in erofs TrIO: Add tools for using TrIO TrIO: Add README.md arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/erofs/Kconfig | 11 + fs/erofs/Makefile | 1 + fs/erofs/fscache.c | 22 +- fs/erofs/inode.c | 2 + fs/erofs/internal.h | 56 ++ fs/erofs/super.c | 49 +- fs/erofs/trio_manager.c | 365 +++++++++++++ tools/trio/README.md | 507 +++++++++++++++++++ tools/trio/bpf/iotracker/Makefile | 99 ++++ tools/trio/bpf/iotracker/iotracker.bpf.c | 59 +++ tools/trio/bpf/iotracker/iotracker.c | 57 +++ tools/trio/bpf/rio_tracker_mod/Makefile | 9 + tools/trio/bpf/rio_tracker_mod/rio_tracker.c | 280 ++++++++++ tools/trio/scripts/trace_parser.py | 277 ++++++++++ 16 files changed, 1793 insertions(+), 3 deletions(-) create mode 100644 fs/erofs/trio_manager.c create mode 100644 tools/trio/README.md create mode 100644 tools/trio/bpf/iotracker/Makefile create mode 100644 tools/trio/bpf/iotracker/iotracker.bpf.c create mode 100644 tools/trio/bpf/iotracker/iotracker.c create mode 100644 tools/trio/bpf/rio_tracker_mod/Makefile create mode 100644 tools/trio/bpf/rio_tracker_mod/rio_tracker.c create mode 100644 tools/trio/scripts/trace_parser.py -- 2.34.1

2 5

[PATCH openEuler-25.03 v4 0/4] Add TrIO support in EROFS
by Hongbo Li 27 Feb '25

27 Feb '25

TrIO can accelerate the cold start of containers during on-demand loading. It aggregates the read I/O operations required for container runtime during the first container launch. In the following startups, TrIO pulls the necessary I/O data to the container node in a single large I/O operation and uses this I/O information to construct the runtime rootfs. By improving the efficiency of network I/O, TrIO speeds up container startup in on-demand loading scenarios. TrIO consists of both kernel-space and user-space code. The kernel-space code has been adapted at the overlayfs layer, introducing the CONFIG_EROFS_TRIO configuration to provide isolation. The user-space code requires adaptation by the user, and detailed usage methods are introduced in the tools/trio/README.md section. Patches 1~2 correspond to the kernel adaptations, while patches 3~4 are the scripts and best practices that TrIO relies on for its operation. v4: - Avoid the memleak of meta_buf. - Fix some exception handle from reviewer's suggestions. - Use spinlock in kprobe context. v3: - Obtain and keep the trio_object in open. - Only close readahead in trio case. Hongbo Li (4): erofs:trio: Add trio_manager in erofs erofs: trio: Support TrIO feature in erofs TrIO: Add tools for using TrIO TrIO: Add README.md arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/erofs/Kconfig | 11 + fs/erofs/Makefile | 1 + fs/erofs/fscache.c | 22 +- fs/erofs/inode.c | 2 + fs/erofs/internal.h | 56 ++ fs/erofs/super.c | 49 +- fs/erofs/trio_manager.c | 365 +++++++++++++ tools/trio/README.md | 507 +++++++++++++++++++ tools/trio/bpf/iotracker/Makefile | 99 ++++ tools/trio/bpf/iotracker/iotracker.bpf.c | 59 +++ tools/trio/bpf/iotracker/iotracker.c | 57 +++ tools/trio/bpf/rio_tracker_mod/Makefile | 9 + tools/trio/bpf/rio_tracker_mod/rio_tracker.c | 280 ++++++++++ tools/trio/scripts/trace_parser.py | 277 ++++++++++ 16 files changed, 1793 insertions(+), 3 deletions(-) create mode 100644 fs/erofs/trio_manager.c create mode 100644 tools/trio/README.md create mode 100644 tools/trio/bpf/iotracker/Makefile create mode 100644 tools/trio/bpf/iotracker/iotracker.bpf.c create mode 100644 tools/trio/bpf/iotracker/iotracker.c create mode 100644 tools/trio/bpf/rio_tracker_mod/Makefile create mode 100644 tools/trio/bpf/rio_tracker_mod/rio_tracker.c create mode 100644 tools/trio/scripts/trace_parser.py -- 2.34.1

2 5