Amit Daniel Kachhap de96283322 arm64: cpufeature: Fix the visibility of compat hwcaps ... commit 85f1506337 upstream. Commit 237405ebef ("arm64: cpufeature: Force HWCAP to be based on the sysreg visible to user-space") forced the hwcaps to use sanitised user-space view of the id registers. However, the ID register structures used to select few compat cpufeatures (vfp, crc32, ...) are masked and hence such hwcaps do not appear in /proc/cpuinfo anymore for PER_LINUX32 personality. Add the ID register structures explicitly and set the relevant entry as visible. As these ID registers are now of type visible so make them available in 64-bit userspace by making necessary changes in register emulation logic and documentation. While at it, update the comment for structure ftr_generic_32bits[] which lists the ID register that use it. Fixes: 237405ebef ("arm64: cpufeature: Force HWCAP to be based on the sysreg visible to user-space") Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com> Link: https://lore.kernel.org/r/20221103082232.19189-1-amit.kachhap@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-08-19 05:45:51 +02:00
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acpi_object_usage.rst	Documentation: arm64/acpi : clarify arm64 support of IBFT	2021-03-22 12:43:20 +00:00
amu.rst	…
arm-acpi.rst	…
asymmetric-32bit.rst	Documentation: arm64: describe asymmetric 32-bit support	2021-08-20 12:33:07 +02:00
booting.rst	arm64: Document the requirement for SCR_EL3.HCE	2021-08-24 16:44:23 +01:00
cpu-feature-registers.rst	arm64: cpufeature: Fix the visibility of compat hwcaps	2024-08-19 05:45:51 +02:00
elf_hwcaps.rst	arm64: cpufeature: add HWCAP for FEAT_RPRES	2022-03-11 12:22:33 +01:00
features.rst	…
hugetlbpage.rst	…
index.rst	Documentation: arm64: describe asymmetric 32-bit support	2021-08-20 12:33:07 +02:00
kasan-offsets.sh	…
legacy_instructions.rst	…
memory-tagging-extension.rst	Documentation: document the preferred tag checking mode feature	2021-07-28 18:39:26 +01:00
memory.rst	ARM:	2020-12-20 10:44:05 -08:00
perf.rst	…
pointer-authentication.rst	arm64: Introduce prctl(PR_PAC_{SET,GET}_ENABLED_KEYS)	2021-04-13 17:31:44 +01:00
silicon-errata.rst	arm64: errata: Expand speculative SSBS workaround (again)	2024-08-19 05:45:41 +02:00
sve.rst	…
tagged-address-abi.rst	userfaultfd: do not untag user pointers	2021-07-23 17:43:28 -07:00
tagged-pointers.rst	…