James Morse 06035fd1ef arm64: errata: Remove AES hwcap for COMPAT tasks ... commit 44b3834b2e upstream. Cortex-A57 and Cortex-A72 have an erratum where an interrupt that occurs between a pair of AES instructions in aarch32 mode may corrupt the ELR. The task will subsequently produce the wrong AES result. The AES instructions are part of the cryptographic extensions, which are optional. User-space software will detect the support for these instructions from the hwcaps. If the platform doesn't support these instructions a software implementation should be used. Remove the hwcap bits on affected parts to indicate user-space should not use the AES instructions. Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20220714161523.279570-3-james.morse@arm.com Signed-off-by: Will Deacon <will@kernel.org> [florian: resolved conflicts in arch/arm64/tools/cpucaps and cpu_errata.c] Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-11-03 23:50:50 +09:00
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acpi_object_usage.txt	ARM64: ACPI: Update documentation for latest specification version	2016-06-21 16:26:09 +01:00
arm-acpi.txt	ARM64: ACPI: Update documentation for latest specification version	2016-06-21 16:26:09 +01:00
booting.txt	arm64: add the initrd region to the linear mapping explicitly	2016-04-14 16:20:45 +01:00
cpu-feature-registers.txt	arm64: Expose Arm v8.4 features	2019-10-29 09:17:10 +01:00
legacy_instructions.txt	arm64: Emulate SETEND for AArch32 tasks	2015-01-23 17:11:44 +00:00
memory.txt	Documentation/arm64/memory.txt: fix typo	2014-10-20 17:55:38 +01:00
silicon-errata.txt	arm64: errata: Remove AES hwcap for COMPAT tasks	2022-11-03 23:50:50 +09:00
tagged-pointers.txt	arm64: documentation: document tagged pointer stack constraints	2017-05-09 17:43:18 +01:00