[GIT PULL] arm64 spectre and meltdown mitigations for v4.14-stable

Ard Biesheuvel ard.biesheuvel at linaro.org
Wed Feb 14 06:24:28 PST 2018

On 14 February 2018 at 13:54, Greg KH <gregkh at linuxfoundation.org> wrote:
> On Mon, Feb 12, 2018 at 11:38:01AM +0000, Ard Biesheuvel wrote:
>> Hi Greg,
>> As mentioned by Will, I have created the v4.14 counterpart of his stable
>> backport of the arm64/ARM Spectre/Meltdown mitigations that have been pulled
>> into v4.16-rc1.
>> Given that this is the v4.15 version backported to v4.14, I have removed any
>> mention of 'conflicts' from the commit logs as they are now ambiguous. The
>> patches applied surprisingly cleanly, I only needed to drop two patches that
>> are already in (the same ones Will mentioned in his PR), and drop another one
>> dealing with SPE, support for which did not exist yet in v4.14. I also included
>> the patch
>>   arm64: move TASK_* definitions to <asm/processor.h>
>> from v4.15 to make Robin's Spectre v1 patches apply more cleanly.
> I've queued these up now, but if you could pull the whole quilt tree and
> verify I got things right, that would be great.  There was some
> conflicts with a few previous patches I had already queued up that
> touched some "Falkor" errata code.
> Specifically 932b50c7c1c65e6f23002e075b97ee083c4a9e71 "arm64: Add
> software workaround for Falkor erratum 1041" is the offending patch.  I
> think I resolved the merge issues properly, but verifying this would be
> wonderful.

No, the build is broken now. I will investigate.

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