Re: RFC KVM: arm64: selftest: stage 2 mapping helpers

[Sean Christopherson <seanjc@google.com>]

+Yosry and Jim

On Mon, Oct 20, 2025, Oliver Upton wrote:
> > +void virt_arch_s2_map(struct kvm_vm *vm, u64 ipa, u64 paddr);
> > +
> > +static inline void virt_s2_map(struct kvm_vm *vm, u64 ipa, u64 paddr)
> > +{
> > +	virt_arch_s2_map(vm, ipa, paddr);
> > +}
> 
> This is all going to be arm64-specific, no need for indirection through
> something pretending to be arch-generic.

I was going to ask about that.  Do we want to try and provide a generic interface?

Yosry (and Jim) are working on unifying as much of the AMD vs. Intel logic as
possible, and if my wishes come true, unifying stage-1 and stage-2 mapping code
as well.  I.e. if we envision any arch-agnositic tests that can do nested things,
now's the time.  E.g. running dirty logging tests in L2 maybe?