Re: [RFC v2 2/4] hvf: arm64: add workaround for Apple M4 to run older macOS versions

[Mohamed Mediouni]

> On 7. Oct 2025, at 23:12, Alexander Graf <ag...@csgraf.de> wrote:
> 
> 
> On 07.10.25 22:31, Mohamed Mediouni wrote:
>> Apple M4 removes FEAT_SSBS. However, older macOS releases
>> do misbehave in such a configuration and do not boot.
>> 
>> Use private API to trap SCTLR_EL1 accesses through FGT.
>> 
>> Signed-off-by: Mohamed Mediouni <moha...@unpredictable.fr>
> 
> 
> These old macOS versions did not include M4 support, correct? So wouldn't it 
> make more sense to make more recent macOS work instead?
> 
> Alex
> 
Apple ships such a workaround in Virtualization.framework to allow older macOS 
VMs to work