October 2024 - Kernel - mailweb.openeuler.org

[PATCH OLK-6.6 0/3] LoongArch: backport 3 patches from upstream
by Hongchen Zhang 23 Oct '24

23 Oct '24

Huacai Chen (3): LoongArch: Change SHMLBA from SZ_64K to PAGE_SIZE LoongArch: Add writecombine support for DMW-based ioremap() LoongArch: Define __ARCH_WANT_NEW_STAT in unistd.h arch/loongarch/include/asm/addrspace.h | 4 ++++ arch/loongarch/include/asm/io.h | 10 ++++++++-- arch/loongarch/include/asm/loongarch.h | 10 +++++++++- arch/loongarch/include/asm/shmparam.h | 12 ------------ arch/loongarch/include/asm/stackframe.h | 11 +++++++++++ arch/loongarch/include/asm/unistd.h | 1 + arch/loongarch/kernel/head.S | 22 ++++++++++++---------- arch/loongarch/power/suspend_asm.S | 6 +----- drivers/firmware/efi/libstub/loongarch.c | 2 ++ 9 files changed, 48 insertions(+), 30 deletions(-) delete mode 100644 arch/loongarch/include/asm/shmparam.h -- 2.33.0

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[PATCH OLK-6.6] LoongArch: fix dma-direct.h not found
by Hongchen Zhang 23 Oct '24

23 Oct '24

LoongArch inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAZ2YN CVE: NA -------------------------------- This patch fix the compile error: dma-direct.h not found Fixes: 90d2bbc1ade2 ("LoongArch: use arch specific phys_to_dma") Signed-off-by: Hongchen Zhang <zhanghongchen(a)loongson.cn> --- arch/loongarch/include/asm/dma-direct.h | 21 +++++++++++++++++++ arch/loongarch/include/uapi/asm/setup.h | 27 +++++++++++++++++++++++++ arch/loongarch/kernel/dma.c | 17 ++-------------- 3 files changed, 50 insertions(+), 15 deletions(-) create mode 100644 arch/loongarch/include/asm/dma-direct.h create mode 100644 arch/loongarch/include/uapi/asm/setup.h diff --git a/arch/loongarch/include/asm/dma-direct.h b/arch/loongarch/include/asm/dma-direct.h new file mode 100644 index 000000000000..a8fbae3bd5da --- /dev/null +++ b/arch/loongarch/include/asm/dma-direct.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_LOONGARCH_DMA_DIRECT_H +#define _ASM_LOONGARCH_DMA_DIRECT_H + +extern int node_id_offset; + +static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) +{ + long nid = (paddr >> 44) & 0xf; + + return ((nid << 44) ^ paddr) | (nid << node_id_offset); +} + +static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) +{ + long nid = (daddr >> node_id_offset) & 0xf; + + return ((nid << node_id_offset) ^ daddr) | (nid << 44); +} + +#endif /* _ASM_LOONGARCH_DMA_DIRECT_H */ diff --git a/arch/loongarch/include/uapi/asm/setup.h b/arch/loongarch/include/uapi/asm/setup.h new file mode 100644 index 000000000000..5d703888f351 --- /dev/null +++ b/arch/loongarch/include/uapi/asm/setup.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Based on arch/arm/include/asm/setup.h + * + * Copyright (C) 1997-1999 Russell King + * Copyright (C) 2012 ARM Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#ifndef __ASM_SETUP_H +#define __ASM_SETUP_H + +#include <linux/types.h> + +#define COMMAND_LINE_SIZE 2048 + +#endif diff --git a/arch/loongarch/kernel/dma.c b/arch/loongarch/kernel/dma.c index cc0ccde58db8..34836408b15a 100644 --- a/arch/loongarch/kernel/dma.c +++ b/arch/loongarch/kernel/dma.c @@ -11,21 +11,8 @@ * 48bit physical address space and embed it into 40bit. */ -static int node_id_offset; - -dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) -{ - long nid = (paddr >> 44) & 0xf; - - return ((nid << 44) ^ paddr) | (nid << node_id_offset); -} - -phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) -{ - long nid = (daddr >> node_id_offset) & 0xf; - - return ((nid << node_id_offset) ^ daddr) | (nid << 44); -} +int node_id_offset; +EXPORT_SYMBOL_GPL(node_id_offset); void acpi_arch_dma_setup(struct device *dev) { -- 2.33.0

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[openeuler:OLK-6.6 14690/15185] include/linux/dma-direct.h:53:10: fatal error: asm/dma-direct.h: No such file or directory
by kernel test robot 23 Oct '24

23 Oct '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: b436b5d324a6e9fcdbdfc942a4a7b07b8511aae7 commit: fd7608989d69c46482cdbd13f8fa909b0f305dbd [14690/15185] LoongArch: Remove the unused dma-direct.h config: loongarch-allnoconfig (https://download.01.org/0day-ci/archive/20241023/202410230856.2tl76ThF-lkp@…) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241023/202410230856.2tl76ThF-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202410230856.2tl76ThF-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from arch/loongarch/kernel/dma.c:6: >> include/linux/dma-direct.h:53:10: fatal error: asm/dma-direct.h: No such file or directory 53 | #include <asm/dma-direct.h> | ^~~~~~~~~~~~~~~~~~ compilation terminated. vim +53 include/linux/dma-direct.h e0d072782c734d Jim Quinlan 2020-09-17 51 ea8c64ace86647 Christoph Hellwig 2018-01-10 52 #ifdef CONFIG_ARCH_HAS_PHYS_TO_DMA ea8c64ace86647 Christoph Hellwig 2018-01-10 @53 #include <asm/dma-direct.h> 5ceda74093a5c1 Christoph Hellwig 2020-08-17 54 #ifndef phys_to_dma_unencrypted 5ceda74093a5c1 Christoph Hellwig 2020-08-17 55 #define phys_to_dma_unencrypted phys_to_dma 5ceda74093a5c1 Christoph Hellwig 2020-08-17 56 #endif ea8c64ace86647 Christoph Hellwig 2018-01-10 57 #else 5ceda74093a5c1 Christoph Hellwig 2020-08-17 58 static inline dma_addr_t phys_to_dma_unencrypted(struct device *dev, 5ceda74093a5c1 Christoph Hellwig 2020-08-17 59 phys_addr_t paddr) ea8c64ace86647 Christoph Hellwig 2018-01-10 60 { e0d072782c734d Jim Quinlan 2020-09-17 61 if (dev->dma_range_map) e0d072782c734d Jim Quinlan 2020-09-17 62 return translate_phys_to_dma(dev, paddr); e0d072782c734d Jim Quinlan 2020-09-17 63 return paddr; ea8c64ace86647 Christoph Hellwig 2018-01-10 64 } ea8c64ace86647 Christoph Hellwig 2018-01-10 65 :::::: The code at line 53 was first introduced by commit :::::: ea8c64ace86647260ec4255f483e5844d62af2df dma-mapping: move swiotlb arch helpers to a new header :::::: TO: Christoph Hellwig <hch(a)lst.de> :::::: CC: Christoph Hellwig <hch(a)lst.de> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 12720/30000] drivers/vdpa/virtio_pci/vp_vdpa.c:168 vp_vdpa_request_irq() warn: inconsistent indenting
by kernel test robot 23 Oct '24

23 Oct '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 31421c83a2aaf8ecc1d8f377ea9e7e7a37cdb2bf commit: 7e9f220b20b856cefc3290400637c00da0b224c3 [12720/30000] vdpa: set the virtqueue num during register config: x86_64-randconfig-161-20241012 (https://download.01.org/0day-ci/archive/20241023/202410230108.FVEbypBJ-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202410230108.FVEbypBJ-lkp@intel.com/ smatch warnings: drivers/vdpa/virtio_pci/vp_vdpa.c:168 vp_vdpa_request_irq() warn: inconsistent indenting vim +168 drivers/vdpa/virtio_pci/vp_vdpa.c b66082483c7e22 Jason Wang 2021-02-23 124 b66082483c7e22 Jason Wang 2021-02-23 125 static int vp_vdpa_request_irq(struct vp_vdpa *vp_vdpa) b66082483c7e22 Jason Wang 2021-02-23 126 { b66082483c7e22 Jason Wang 2021-02-23 127 struct virtio_pci_modern_device *mdev = &vp_vdpa->mdev; b66082483c7e22 Jason Wang 2021-02-23 128 struct pci_dev *pdev = mdev->pci_dev; b66082483c7e22 Jason Wang 2021-02-23 129 int i, ret, irq; b66082483c7e22 Jason Wang 2021-02-23 130 int queues = vp_vdpa->queues; b66082483c7e22 Jason Wang 2021-02-23 131 int vectors = queues + 1; b66082483c7e22 Jason Wang 2021-02-23 132 b66082483c7e22 Jason Wang 2021-02-23 133 ret = pci_alloc_irq_vectors(pdev, vectors, vectors, PCI_IRQ_MSIX); b66082483c7e22 Jason Wang 2021-02-23 134 if (ret != vectors) { b66082483c7e22 Jason Wang 2021-02-23 135 dev_err(&pdev->dev, b66082483c7e22 Jason Wang 2021-02-23 136 "vp_vdpa: fail to allocate irq vectors want %d but %d\n", b66082483c7e22 Jason Wang 2021-02-23 137 vectors, ret); b66082483c7e22 Jason Wang 2021-02-23 138 return ret; b66082483c7e22 Jason Wang 2021-02-23 139 } b66082483c7e22 Jason Wang 2021-02-23 140 b66082483c7e22 Jason Wang 2021-02-23 141 vp_vdpa->vectors = vectors; b66082483c7e22 Jason Wang 2021-02-23 142 b66082483c7e22 Jason Wang 2021-02-23 143 for (i = 0; i < queues; i++) { b66082483c7e22 Jason Wang 2021-02-23 144 snprintf(vp_vdpa->vring[i].msix_name, VP_VDPA_NAME_SIZE, b66082483c7e22 Jason Wang 2021-02-23 145 "vp-vdpa[%s]-%d\n", pci_name(pdev), i); b66082483c7e22 Jason Wang 2021-02-23 146 irq = pci_irq_vector(pdev, i); b66082483c7e22 Jason Wang 2021-02-23 147 ret = devm_request_irq(&pdev->dev, irq, b66082483c7e22 Jason Wang 2021-02-23 148 vp_vdpa_vq_handler, b66082483c7e22 Jason Wang 2021-02-23 149 0, vp_vdpa->vring[i].msix_name, b66082483c7e22 Jason Wang 2021-02-23 150 &vp_vdpa->vring[i]); b66082483c7e22 Jason Wang 2021-02-23 151 if (ret) { b66082483c7e22 Jason Wang 2021-02-23 152 dev_err(&pdev->dev, b66082483c7e22 Jason Wang 2021-02-23 153 "vp_vdpa: fail to request irq for vq %d\n", i); b66082483c7e22 Jason Wang 2021-02-23 154 goto err; b66082483c7e22 Jason Wang 2021-02-23 155 } b66082483c7e22 Jason Wang 2021-02-23 156 vp_modern_queue_vector(mdev, i, i); b66082483c7e22 Jason Wang 2021-02-23 157 vp_vdpa->vring[i].irq = irq; b66082483c7e22 Jason Wang 2021-02-23 158 } b66082483c7e22 Jason Wang 2021-02-23 159 b66082483c7e22 Jason Wang 2021-02-23 160 snprintf(vp_vdpa->msix_name, VP_VDPA_NAME_SIZE, "vp-vdpa[%s]-config\n", b66082483c7e22 Jason Wang 2021-02-23 161 pci_name(pdev)); b66082483c7e22 Jason Wang 2021-02-23 162 irq = pci_irq_vector(pdev, queues); b66082483c7e22 Jason Wang 2021-02-23 163 ret = devm_request_irq(&pdev->dev, irq, vp_vdpa_config_handler, 0, b66082483c7e22 Jason Wang 2021-02-23 164 vp_vdpa->msix_name, vp_vdpa); b66082483c7e22 Jason Wang 2021-02-23 165 if (ret) { b66082483c7e22 Jason Wang 2021-02-23 166 dev_err(&pdev->dev, b66082483c7e22 Jason Wang 2021-02-23 167 "vp_vdpa: fail to request irq for vq %d\n", i); b66082483c7e22 Jason Wang 2021-02-23 @168 goto err; b66082483c7e22 Jason Wang 2021-02-23 169 } b66082483c7e22 Jason Wang 2021-02-23 170 vp_modern_config_vector(mdev, queues); b66082483c7e22 Jason Wang 2021-02-23 171 vp_vdpa->config_irq = irq; b66082483c7e22 Jason Wang 2021-02-23 172 b66082483c7e22 Jason Wang 2021-02-23 173 return 0; b66082483c7e22 Jason Wang 2021-02-23 174 err: b66082483c7e22 Jason Wang 2021-02-23 175 vp_vdpa_free_irq(vp_vdpa); b66082483c7e22 Jason Wang 2021-02-23 176 return ret; b66082483c7e22 Jason Wang 2021-02-23 177 } b66082483c7e22 Jason Wang 2021-02-23 178 :::::: The code at line 168 was first introduced by commit :::::: b66082483c7e223dd0cbf81b454ca85013446a2b vdpa: introduce virtio pci driver :::::: TO: Jason Wang <jasowang(a)redhat.com> :::::: CC: Pengyuan Zhao <zhaopengyuan(a)hisilicon.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-5.10] nfsd: call cache_put if xdr_reserve_space returns NULL
by Li Lingfeng 22 Oct '24

22 Oct '24

From: Guoqing Jiang <guoqing.jiang(a)linux.dev> stable inclusion from stable-v5.10.227 commit 9f03f0016ff797932551881c7e06ae50e9c39134 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAYQRM CVE: CVE-2024-47737 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d078cbf5c38de83bc31f83c47dcd2184c04a50c7 ] If not enough buffer space available, but idmap_lookup has triggered lookup_fn which calls cache_get and returns successfully. Then we missed to call cache_put here which pairs with cache_get. Fixes: ddd1ea563672 ("nfsd4: use xdr_reserve_space in attribute encoding") Signed-off-by: Guoqing Jiang <guoqing.jiang(a)linux.dev> Reviwed-by: Jeff Layton <jlayton(a)kernel.org> Signed-off-by: Chuck Lever <chuck.lever(a)oracle.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- fs/nfsd/nfs4idmap.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c index f92161ce1f97..9062b5e14b66 100644 --- a/fs/nfsd/nfs4idmap.c +++ b/fs/nfsd/nfs4idmap.c @@ -580,6 +580,7 @@ static __be32 idmap_id_to_name(struct xdr_stream *xdr, .id = id, .type = type, }; + __be32 status = nfs_ok; __be32 *p; int ret; struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); @@ -592,12 +593,16 @@ static __be32 idmap_id_to_name(struct xdr_stream *xdr, return nfserrno(ret); ret = strlen(item->name); WARN_ON_ONCE(ret > IDMAP_NAMESZ); + p = xdr_reserve_space(xdr, ret + 4); - if (!p) - return nfserr_resource; - p = xdr_encode_opaque(p, item->name, ret); + if (unlikely(!p)) { + status = nfserr_resource; + goto out_put; + } + xdr_encode_opaque(p, item->name, ret); +out_put: cache_put(&item->h, nn->idtoname_cache); - return 0; + return status; } static bool -- 2.31.1

2 1

[PATCH OLK-6.6] nfsd: call cache_put if xdr_reserve_space returns NULL
by Li Lingfeng 22 Oct '24

22 Oct '24

From: Guoqing Jiang <guoqing.jiang(a)linux.dev> stable inclusion from stable-v6.6.54 commit a1afbbb5276f943ad7173d0b4c626b8c75a260da category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAYQRM CVE: CVE-2024-47737 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d078cbf5c38de83bc31f83c47dcd2184c04a50c7 ] If not enough buffer space available, but idmap_lookup has triggered lookup_fn which calls cache_get and returns successfully. Then we missed to call cache_put here which pairs with cache_get. Fixes: ddd1ea563672 ("nfsd4: use xdr_reserve_space in attribute encoding") Signed-off-by: Guoqing Jiang <guoqing.jiang(a)linux.dev> Reviwed-by: Jeff Layton <jlayton(a)kernel.org> Signed-off-by: Chuck Lever <chuck.lever(a)oracle.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- fs/nfsd/nfs4idmap.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c index 7a806ac13e31..8cca1329f348 100644 --- a/fs/nfsd/nfs4idmap.c +++ b/fs/nfsd/nfs4idmap.c @@ -581,6 +581,7 @@ static __be32 idmap_id_to_name(struct xdr_stream *xdr, .id = id, .type = type, }; + __be32 status = nfs_ok; __be32 *p; int ret; struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); @@ -593,12 +594,16 @@ static __be32 idmap_id_to_name(struct xdr_stream *xdr, return nfserrno(ret); ret = strlen(item->name); WARN_ON_ONCE(ret > IDMAP_NAMESZ); + p = xdr_reserve_space(xdr, ret + 4); - if (!p) - return nfserr_resource; - p = xdr_encode_opaque(p, item->name, ret); + if (unlikely(!p)) { + status = nfserr_resource; + goto out_put; + } + xdr_encode_opaque(p, item->name, ret); +out_put: cache_put(&item->h, nn->idtoname_cache); - return 0; + return status; } static bool -- 2.31.1

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[PATCH openEuler-1.0-LTS 0/3] backport some LTS patches
by Liu Jian 22 Oct '24

22 Oct '24

backport some LTS patches. Benjamin Coddington (1): SUNRPC: Fix a race to wake a sync task Eric Dumazet (2): net: linkwatch: use system_unbound_wq net: busy-poll: use ktime_get_ns() instead of local_clock() include/net/busy_poll.h | 2 +- net/core/link_watch.c | 4 ++-- net/sunrpc/sched.c | 4 +++- 3 files changed, 6 insertions(+), 4 deletions(-) -- 2.34.1

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[PATCH OLK-5.10] arm64: errata: Add Cortex-A55 to the repeat tlbi list
by Bowen You 22 Oct '24

22 Oct '24

From: James Morse <james.morse(a)arm.com> mainline inclusion from mainline-v6.1-rc1 commit 171df58028bf4649460fb146a56a58dcb0c8f75a category: bugfix bugzilla: 190345 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Cortex-A55 is affected by an erratum where in rare circumstances the CPUs may not handle a race between a break-before-make sequence on one CPU, and another CPU accessing the same page. This could allow a store to a page that has been unmapped. Work around this by adding the affected CPUs to the list that needs TLB sequences to be done twice. Signed-off-by: James Morse <james.morse(a)arm.com> Cc: <stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20220930131959.3082594-1-james.morse@arm.com Signed-off-by: Catalin Marinas <catalin.marinas(a)arm.com> Conflicts: arch/arm64/kernel/cpu_errata.c [Some erratum are not added into repeat tlbi list] Signed-off-by: Bowen You <youbowen2(a)huawei.com> --- Documentation/arm64/silicon-errata.rst | 2 ++ arch/arm64/Kconfig | 17 +++++++++++++++++ arch/arm64/kernel/cpu_errata.c | 5 +++++ 3 files changed, 24 insertions(+) diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst index af12c363a699..7a087383d8c2 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -68,6 +68,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A55 | #1530923 | ARM64_ERRATUM_1530923 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Cortex-A55 | #2441007 | ARM64_ERRATUM_2441007 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A57 | #832075 | ARM64_ERRATUM_832075 | +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A57 | #852523 | N/A | diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 8b8f48b2a51e..751f6c1a2bcc 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -624,6 +624,23 @@ config ARM64_ERRATUM_1530923 config ARM64_WORKAROUND_REPEAT_TLBI bool +config ARM64_ERRATUM_2441007 + bool "Cortex-A55: Completion of affected memory accesses might not be guaranteed by completion of a TLBI" + default y + select ARM64_WORKAROUND_REPEAT_TLBI + help + This option adds a workaround for ARM Cortex-A55 erratum #2441007. + + Under very rare circumstances, affected Cortex-A55 CPUs + may not handle a race between a break-before-make sequence on one + CPU, and another CPU accessing the same page. This could allow a + store to a page that has been unmapped. + + Work around this by adding the affected CPUs to the list that needs + TLB sequences to be done twice. + + If unsure, say Y. + config ARM64_ERRATUM_1286807 bool "Cortex-A76: Modification of the translation table for a virtual address might lead to read-after-read ordering violation" default y diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 7f175b3aac15..c7bac554ca8c 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -297,6 +297,11 @@ static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = { /* Kryo4xx Gold (rcpe to rfpe) => (r0p0 to r3p0) */ ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe), }, +#endif +#ifdef CONFIG_ARM64_ERRATUM_2441007 + { + ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A55), + }, #endif {}, }; -- 2.34.1

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[OLK-5.10] [Backport] arm64: errata: Add Cortex-A55 to the repeat tlbi list
by Bowen You 22 Oct '24

22 Oct '24

From: James Morse <james.morse(a)arm.com> mainline inclusion from mainline-v6.1-rc1 commit 171df58028bf4649460fb146a56a58dcb0c8f75a category: bugfix bugzilla: 190345 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Cortex-A55 is affected by an erratum where in rare circumstances the CPUs may not handle a race between a break-before-make sequence on one CPU, and another CPU accessing the same page. This could allow a store to a page that has been unmapped. Work around this by adding the affected CPUs to the list that needs TLB sequences to be done twice. Signed-off-by: James Morse <james.morse(a)arm.com> Cc: <stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20220930131959.3082594-1-james.morse@arm.com Signed-off-by: Catalin Marinas <catalin.marinas(a)arm.com> Signed-off-by: Bowen You <youbowen2(a)huawei.com> --- Documentation/arm64/silicon-errata.rst | 2 ++ arch/arm64/Kconfig | 17 +++++++++++++++++ arch/arm64/kernel/cpu_errata.c | 5 +++++ 3 files changed, 24 insertions(+) diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst index af12c363a699..7a087383d8c2 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -68,6 +68,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A55 | #1530923 | ARM64_ERRATUM_1530923 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Cortex-A55 | #2441007 | ARM64_ERRATUM_2441007 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A57 | #832075 | ARM64_ERRATUM_832075 | +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A57 | #852523 | N/A | diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 8b8f48b2a51e..751f6c1a2bcc 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -624,6 +624,23 @@ config ARM64_ERRATUM_1530923 config ARM64_WORKAROUND_REPEAT_TLBI bool +config ARM64_ERRATUM_2441007 + bool "Cortex-A55: Completion of affected memory accesses might not be guaranteed by completion of a TLBI" + default y + select ARM64_WORKAROUND_REPEAT_TLBI + help + This option adds a workaround for ARM Cortex-A55 erratum #2441007. + + Under very rare circumstances, affected Cortex-A55 CPUs + may not handle a race between a break-before-make sequence on one + CPU, and another CPU accessing the same page. This could allow a + store to a page that has been unmapped. + + Work around this by adding the affected CPUs to the list that needs + TLB sequences to be done twice. + + If unsure, say Y. + config ARM64_ERRATUM_1286807 bool "Cortex-A76: Modification of the translation table for a virtual address might lead to read-after-read ordering violation" default y diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 7f175b3aac15..c7bac554ca8c 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -297,6 +297,11 @@ static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = { /* Kryo4xx Gold (rcpe to rfpe) => (r0p0 to r3p0) */ ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe), }, +#endif +#ifdef CONFIG_ARM64_ERRATUM_2441007 + { + ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A55), + }, #endif {}, }; -- 2.34.1

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温馨提醒 //答复: 【重要】openEuler 24.03 LTS SP1版本需求收集中，请大家提交需要合入的特性到release plan
by Sujinling 22 Oct '24

22 Oct '24

openEuler 24.03 LTS SP1 版本计划在Release Sig例会已同步过，需求收集截止节点 10/31，请大家及时提交需要合入的特性到release plan，感谢~ Thanks & best regards, 苏锦铃 00566192 发件人: Sujinling <sujinling(a)huawei.com> 发送时间: 2024年9月2日 10:23 收件人: release(a)openeuler.org; tc(a)openeuler.org; dev(a)openeuler.org; kernel(a)openeuler.org 主题: 【重要】openEuler 24.03 LTS SP1版本需求收集中，请大家提交需要合入的特性到release plan 大家好， openEuler 24.03 LTS SP1是基于6.6内核的24.03-LTS版本增强扩展版本，按release-plan计划启动需求收集，欢迎各sig maintainer、伙伴和社区开发者们积极反馈和交流。请大家提交需要合入的特性清单到release plan上，感谢！ openEuler 24.03 LTS SP1版本release plan详细版本计划： https://gitee.com/openeuler/release-management/blob/master/openEuler-24.03-… 需求申请流程链接，请按照流程步骤提交，issue 类型选择需求， issue 标题以 [openEuler-24.03 LTS SP1] 开头： https://gitee.com/openeuler/release-management/blob/master/Goverance/openEu… Thanks & best regards, 苏锦铃

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