linux-kernel - [PATCH v2 0/8] Relax sanity checking for mismatched AArch32 EL1

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Date:   Tue, 21 Apr 2020 15:29:14 +0100
From:   Will Deacon <will@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu
Cc:     linux-kernel@...r.kernel.org, Will Deacon <will@...nel.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mark Rutland <mark.rutland@....com>,
        Marc Zyngier <maz@...nel.org>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        Doug Anderson <dianders@...omium.org>, kernel-team@...roid.com
Subject: [PATCH v2 0/8] Relax sanity checking for mismatched AArch32 EL1

Hi folks,

This is version two of the patches I previously posted here:

	https://lore.kernel.org/lkml/20200414213114.2378-1-will@kernel.org/

Changes since v1 include:

  * Typo fixes
  * Added comment to update_32bit_cpu_features() callsite regarding sanitisation
  * Extended comment in final patch to mention KVM
  * Add acks/tested-bys

Cheers,

Will

Cc: Suzuki K Poulose <suzuki.poulose@....com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Marc Zyngier <maz@...nel.org>
Cc: Anshuman Khandual <anshuman.khandual@....com>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
Cc: Doug Anderson <dianders@...omium.org>
Cc: kernel-team@...roid.com

--->8

Sai Prakash Ranjan (1):
  arm64: cpufeature: Relax check for IESB support

Will Deacon (7):
  arm64: cpufeature: Spell out register fields for ID_ISAR4 and ID_PFR1
  arm64: cpufeature: Add CPU capability for AArch32 EL1 support
  arm64: cpufeature: Remove redundant call to id_aa64pfr0_32bit_el0()
  arm64: cpufeature: Factor out checking of AArch32 features
  arm64: cpufeature: Relax AArch32 system checks if EL1 is 64-bit only
  arm64: cpufeature: Relax checks for AArch32 support at EL[0-2]
  arm64: cpufeature: Add an overview comment for the cpufeature
    framework

 arch/arm64/include/asm/cpucaps.h    |   3 +-
 arch/arm64/include/asm/cpufeature.h |   7 +
 arch/arm64/include/asm/sysreg.h     |  18 ++
 arch/arm64/kernel/cpufeature.c      | 247 +++++++++++++++++++++-------
 arch/arm64/kvm/reset.c              |  12 +-
 5 files changed, 217 insertions(+), 70 deletions(-)

-- 
2.26.1.301.g55bc3eb7cb9-goog