On Mon, 7 Feb 2022 at 22:52, Alexander Graf wrote:
>
> Recent Linux versions added support to read ID_AA64ISAR2_EL1. On M1,
> those reads trap into QEMU which handles them as faults.
>
> However, according to the ARMv8 spec (issue D17783), reads on this
> register in older ARMv8 revisions should b
The patch addresses the current issue for me, thanks!
Is it possible to make it more future proof? I can imagine a very
similar situation arising in the future and it would be good to be
able to handle it gracefully. If it's not possible, then maybe there's
a way to output some sort of error from
Reviewed-by: Cameron Esfahani mailto:di...@apple.com>>
Cameron
> On Feb 7, 2022, at 2:52 PM, Alexander Graf wrote:
>
> Recent Linux versions added support to read ID_AA64ISAR2_EL1. On M1,
> those reads trap into QEMU which handles them as faults.
>
> However, according to the ARMv8 spec (issue
Recent Linux versions added support to read ID_AA64ISAR2_EL1. On M1,
those reads trap into QEMU which handles them as faults.
However, according to the ARMv8 spec (issue D17783), reads on this
register in older ARMv8 revisions should be RES0. So let's treat it
as such instead.
Reported-by: Ivan B
