Excerpts from Fabiano Rosas's message of August 6, 2021 7:26 am:
> Both paths into __kvmhv_copy_tofrom_guest_radix ensure that we arrive
> with an effective address that is smaller than our total addressable
> space and addresses quadrant 0.
>
> - The H_COPY_TOFROM_GUEST hypercall path rejects
Both paths into __kvmhv_copy_tofrom_guest_radix ensure that we arrive
with an effective address that is smaller than our total addressable
space and addresses quadrant 0.
- The H_COPY_TOFROM_GUEST hypercall path rejects the call with
H_PARAMETER if the effective address has any of the twelve most
