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Re: [RFC] [PATCH 0/5] ARMv8.5-MemTag disassembly
From: |
Rémi Denis-Courmont |
Subject: |
Re: [RFC] [PATCH 0/5] ARMv8.5-MemTag disassembly |
Date: |
Fri, 13 Mar 2020 17:16:58 +0200 |
Le perjantaina 13. maaliskuuta 2020, 16.03.36 EET Peter Maydell a écrit :
> On Fri, 13 Mar 2020 at 13:59, Rémi Denis-Courmont <address@hidden> wrote:
> > Hello,
> >
> > The following changes since commit
d4f7d56759f7c75270c13d5f3f5f736a9558929c:
> > Merge remote-tracking branch
> > 'remotes/pmaydell/tags/pull-target-arm-20200312' into staging
> > (2020-03-12 17:34:34 +0000)>
> > adds support for the ARM MTE compatibility subset (which does not seem to
> > have an official name) to QEMU user mode and system mode on "max" CPU.
> > This corresponds to MTE == 1 in the instruction set feature field, and
> > allows running code with MTE instructions without actual tag storage.
>
> Hi; how does this interact with Richard's series for MemTag ?
> https://patchew.org/QEMU/address@hidden
It does not. I don't know about that seriers. The patches are part of the
patchset that lead to my PAuth fixes a year ago. At that time, only beta spec
was available, including obvious bugs (sysregs with duplicate opcodes),
suspicious things (TCO being EL3) and generally being a beta. I thus sat on
that part of the work until I now got time to rebase, clean and update to the
released spec.
Meanwhile if there's a high-profile developer working on the same thing, I
guess there's no point for me to carry on.
--
雷米‧德尼-库尔蒙
http://www.remlab.net/