[PATCH 0/6] Support for systems without AArch32 state

From: Suzuki K Poulose
Date: Thu Jan 28 2016 - 06:34:12 EST


This series add checks to make sure that the AArch32 state is
supported before we process the 32bit ID registers. Also
checks the same for COMPAT binary execution.

This series applies on top of 4.5-rc1 + Early CPU feature verification [1] +
Handle sign bit for CPU Features [2], even though review
doesn't require going through [1] & [2].

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2016-January/401727.html
[2] http://lists.infradead.org/pipermail/linux-arm-kernel/2016-January/401913.html

Suzuki K Poulose (6):
arm64: hwcaps: Cleanup naming
arm64: HWCAP: Split COMPAT HWCAP table entries
arm64: Add helpers for detecting AArch32 support at EL0
arm64: cpufeature: Check availability of AArch32
arm64: cpufeature: Track 32bit EL0 support
arm64: compat: Check for AArch32 state

arch/arm64/include/asm/cpufeature.h | 15 ++-
arch/arm64/include/asm/elf.h | 3 +-
arch/arm64/include/asm/sysreg.h | 1 +
arch/arm64/kernel/cpufeature.c | 186 +++++++++++++++++++++--------------
arch/arm64/kernel/cpuinfo.c | 40 ++++----
5 files changed, 151 insertions(+), 94 deletions(-)

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1.7.9.5