Re: [PATCH 1/4] target/arm/tcg/cpu-v7m.c: add cortex-m85 model

Peter Maydell <[email protected]> Fri, 24 Jul 2026 09:51:04 +0100
Newsgroups org.nongnu.qemu-arm,org.nongnu.qemu-devel
Message-ID <CAFEAcA_Ybrqb0g-cZYf6yL2eHRUZ6PfeWQMiVrVVeFJFp3q8KA@mail.gmail.com>
On Fri, 24 Jul 2026 at 00:36, Simon Xu <[email protected]> wrote:
>
> Add Arm Cortex-M85 CPU, modeld after the existing M55 CPU.
> The new M85 feature PACBTI is not implemented in QEMU and the midr value
> is based off the r1p1 product revision identifier.

The major reason IMHO to add a Cortex-M85 model would be to
have a CPU that supports M-profile PACBTI, so wouldn't
it be better to implement the feature first and then
add the CPU and the board model that uses it ?

thanks
-- PMM