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Re: [PATCH] target/arm: Advertise Cortex-A53 erratum #843419 fix via REV
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From: |
Peter Maydell |
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Subject: |
Re: [PATCH] target/arm: Advertise Cortex-A53 erratum #843419 fix via REVIDR |
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Date: |
Thu, 22 Feb 2024 13:58:35 +0000 |
On Thu, 15 Feb 2024 at 16:02, Ard Biesheuvel <ardb+git@google.com> wrote:
>
> From: Ard Biesheuvel <ardb@kernel.org>
>
> The Cortex-A53 r0p4 revision that QEMU emulates is affected by a CatA
> erratum #843419 (i.e., the most severe), which requires workarounds in
> the toolchain as well as the OS.
>
> Since the emulation is obviously not affected in the same way, we can
> indicate this via REVIDR bit #8, which on r0p4 has the meaning that no
> workarounds for erratum #843419 are needed.
>
> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Applied to target-arm.next, thanks.
-- PMM