Re: [PATCH 0/3] target/arm: Reduced-IPA space and highmem=off fixes

[Marc Zyngier]

On 2021-08-22 15:44, Marc Zyngier wrote:
> With the availability of a fruity range of arm64 systems, it becomes
> obvious that QEMU doesn't deal very well with limited IPA ranges when
> used as a front-end for KVM.
>
> This short series aims at making usable on such systems:
> - the first patch makes the creation of a scratch VM IPA-limit aware
> - the second one actually removes the highmem devices from the
> computed IPA range when highmem=off
> - the last one addresses an imprecision in the documentation for the
> highmem option
>
> This has been tested on an M1-based Mac-mini running Linux v5.14-rc6.

I realise I haven't been very clear in my description of the above.
With this series, using 'highmem=off' results in a usable VM, while
sticking to the default 'highmem=on' still generates an error.

        M.
--
Jazz is not dead. It just smells funny...