Re: [PATCH v4 3/4] arm64: Use __tlbi() macros in KVM code

From: Punit Agrawal
Date: Wed Feb 01 2017 - 12:02:51 EST


Will Deacon <will.deacon@xxxxxxx> writes:

> On Wed, Jan 25, 2017 at 08:39:43PM +0100, Christoffer Dall wrote:
>> On Wed, Jan 25, 2017 at 10:52:31AM -0500, Christopher Covington wrote:
>> > Refactor the KVM code to use the __tlbi macros, which will allow an errata
>> > workaround that repeats tlbi dsb sequences to only change one location.
>> > This is not intended to change the generated assembly and comparing before
>> > and after vmlinux objdump shows no functional changes.
>> >
>> > Signed-off-by: Christopher Covington <cov@xxxxxxxxxxxxxx>
>>
>> Acked-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
>
> Thanks, I'll queue this one via arm64.

I just noticed this patch but there's been a similar patch from Mark
that I've been carrying as part of the KVM TLB monitoring series[0].

[0] http://www.mail-archive.com/kvmarm@xxxxxxxxxxxxxxxxxxxxx/msg09359.html

>
> Will
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