linux-kernel - Re: [PATCH V4 00/17] arm64/cpufeature: Introduce ID_PFR2, ID_DFR1, ID

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <15a06377-4f65-3154-3a5f-bd393e22614f@arm.com>
Date:   Mon, 25 May 2020 18:09:05 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     Will Deacon <will@...nel.org>, linux-arm-kernel@...ts.infradead.org
Cc:     catalin.marinas@....com, maz@...nel.org,
        kvmarm@...ts.cs.columbia.edu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V4 00/17] arm64/cpufeature: Introduce ID_PFR2, ID_DFR1,
 ID_MMFR5 and other changes



On 05/21/2020 08:49 PM, Will Deacon wrote:
> On Tue, 19 May 2020 15:10:37 +0530, Anshuman Khandual wrote:
>> This series is primarily motivated from an adhoc list from Mark Rutland
>> during our previous ID_ISAR6 discussion [1]. The current proposal also
>> accommodates some more suggestions from Will and Suzuki.
>>
>> This series adds missing 32 bit system registers (ID_PFR2, ID_DFR1 and
>> ID_MMFR5), adds missing features bits on all existing system registers
>> (32 and 64 bit) and some other miscellaneous changes. While here it also
>> includes a patch which does macro replacement for various open bits shift
>> encodings for various CPU ID registers. There is a slight re-order of the
>> patches here as compared to the previous version (V1).
>>
>> [...]
> 
> Applied to arm64 (for-next/cpufeature), thanks!
> 
> [01/17] arm64/cpufeature: Add explicit ftr_id_isar0[] for ID_ISAR0 register
>         https://git.kernel.org/arm64/c/2a5bc6c47bc3
> [02/17] arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register
>         https://git.kernel.org/arm64/c/1ed1b90a0594
> [03/17] arm64/cpufeature: Make doublelock a signed feature in ID_AA64DFR0
>         https://git.kernel.org/arm64/c/e965bcb06256
> [04/17] arm64/cpufeature: Introduce ID_PFR2 CPU register
>         https://git.kernel.org/arm64/c/16824085a7dd
> [05/17] arm64/cpufeature: Introduce ID_DFR1 CPU register
>         https://git.kernel.org/arm64/c/dd35ec070457
> [06/17] arm64/cpufeature: Introduce ID_MMFR5 CPU register
>         https://git.kernel.org/arm64/c/152accf8476f
> [07/17] arm64/cpufeature: Add remaining feature bits in ID_PFR0 register
>         https://git.kernel.org/arm64/c/0ae43a99fe91
> [08/17] arm64/cpufeature: Add remaining feature bits in ID_MMFR4 register
>         https://git.kernel.org/arm64/c/fcd6535322cc
> [09/17] arm64/cpufeature: Add remaining feature bits in ID_AA64ISAR0 register
>         https://git.kernel.org/arm64/c/7cd51a5a84d1
> [10/17] arm64/cpufeature: Add remaining feature bits in ID_AA64PFR0 register
>         https://git.kernel.org/arm64/c/011e5f5bf529
> [11/17] arm64/cpufeature: Add remaining feature bits in ID_AA64PFR1 register
>         https://git.kernel.org/arm64/c/14e270fa5c4c
> [12/17] arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR0 register
>         (no commit info)
> [13/17] arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR1 register
>         (no commit info)
> [14/17] arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR2 register
>         (no commit info)
> [15/17] arm64/cpufeature: Add remaining feature bits in ID_AA64DFR0 register
>         (no commit info)
> [16/17] arm64/cpufeature: Replace all open bits shift encodings with macros
>         (no commit info)
> [17/17] arm64/cpuinfo: Add ID_MMFR4_EL1 into the cpuinfo_arm64 context
>         https://git.kernel.org/arm64/c/858b8a8039d0
> 
> Note that Suzuki had comments on 12-16, so assume you'll respin those (I fixed
> up the trivial comments on earlier patches myself).
[PATCH 15/17] might need some more investigation and rework. Hence planning to
defer that for later and respin the remaining patches (12, 13, 14, 16) for now.

- Anshuman