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Re: Master cannot execute MTE instructions
From: |
Peter Maydell |
Subject: |
Re: Master cannot execute MTE instructions |
Date: |
Thu, 10 Sep 2020 17:17:17 +0100 |
On Thu, 10 Sep 2020 at 16:06, Derrick McKee <derrick.mckee@gmail.com> wrote:
>
> Hi,
>
> As of commit 9435a8b3dd35f1f926f1b9127e8a906217a5518a compiled with the
> default configuration, softmmu-aarch64 issues an illegal instruction fault
> when executing a memory tag instruction. Below is a minimal code example
> that triggers the bug.
What QEMU command line are you using to run this?
In particular, MTE is not enabled by default, so you need
"-cpu max,mte=on" or similar, is not enabled for any
board except 'virt', and doesn't work with KVM, only TCG.
thanks
-- PMM