Messages in this thread | | | Date | Thu, 9 Dec 2021 10:12:27 +0000 | From | Will Deacon <> | Subject | Re: [PATCH v3 02/15] KVM: arm64: Provide {get,put}_page() stubs for early hyp allocator |
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On Wed, Dec 01, 2021 at 05:03:56PM +0000, Quentin Perret wrote: > In nVHE protected mode, the EL2 code uses a temporary allocator during > boot while re-creating its stage-1 page-table. Unfortunately, the > hyp_vmmemap is not ready to use at this stage, so refcounting pages > is not possible. That is not currently a problem because hyp stage-1 > mappings are never removed, which implies refcounting of page-table > pages is unnecessary. > > In preparation for allowing hypervisor stage-1 mappings to be removed, > provide stub implementations for {get,put}_page() in the early allocator. > > Signed-off-by: Quentin Perret <qperret@google.com> > --- > arch/arm64/kvm/hyp/nvhe/early_alloc.c | 5 +++++ > 1 file changed, 5 insertions(+)
Acked-by: Will Deacon <will@kernel.org>
Will
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