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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Apr 2025 13:50:27.5857 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 84abbcbb-758f-4ec4-7a0c-08dd8336f87c X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: DB5PEPF00014B94.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR08MB7306 Gentle ping in case of forgotten > The FEAT_MTE_TAGGED_FAR feature provides support for > reporting all non-address bits during a synchronous MTE tag check fault. > > This patchset extends the reporting tag to include > not only the memory tag (logical tag) but also the address tag via > si_addr when FEAT_MTE_TAGGED_FAR feature is supported. > > Since v1: > - add hwcap test for MTE_FAR feature. > - add MTE_FAR doc into elf_hwcap.rst > > Since v2: > - Rebase to 6.15-rc1 > > Yeoreum Yun (3): > arm64: add FEAT_MTE_TAGGED_FAR feature > arm64/mm/fault: use original FAR_EL1 value when ARM64_MTE_FAR is > supported > tools/kselftest: add MTE_FAR hwcap test > > Documentation/arch/arm64/elf_hwcaps.rst | 3 +++ > Documentation/arch/arm64/tagged-pointers.rst | 11 ++++++----- > arch/arm64/include/asm/hwcap.h | 1 + > arch/arm64/include/uapi/asm/hwcap.h | 1 + > arch/arm64/kernel/cpufeature.c | 9 +++++++++ > arch/arm64/kernel/cpuinfo.c | 1 + > arch/arm64/mm/fault.c | 7 +++++-- > arch/arm64/tools/cpucaps | 1 + > tools/testing/selftests/arm64/abi/hwcap.c | 6 ++++++ > 9 files changed, 33 insertions(+), 7 deletions(-) > > -- > LEVI:{C3F47F37-75D8-414A-A8BA-3980EC8A46D7} > -- Sincerely, Yeoreum Yun