Hi Fuad,
On Wednesday 21 Jul 2021 at 11:45:53 (+0100), Fuad Tabba wrote:
> > +static int hyp_range_is_shared_walker(u64 addr, u64 end, u32 level,
> > + kvm_pte_t *ptep,
> > + enum kvm_pgtable_walk_flags flag,
> > +
Hi Quentin,
On Mon, Jul 19, 2021 at 11:48 AM Quentin Perret wrote:
>
> The host kernel is currently able to change EL2 stage-1 mappings without
> restrictions thanks to the __pkvm_create_mappings() hypercall. But in a
> world where the host is no longer part of the TCB, this clearly poses a
>
The host kernel is currently able to change EL2 stage-1 mappings without
restrictions thanks to the __pkvm_create_mappings() hypercall. But in a
world where the host is no longer part of the TCB, this clearly poses a
problem.
To fix this, introduce a new hypercall to allow the host to share a
