Re: [PATCH v3 02/15] KVM: arm64: Provide {get,put}_page() stubs for early hyp allocator
From: Will Deacon <will@kernel.org>
Date: 2021-12-09 10:12:38
Also in:
kvmarm, lkml
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 <redacted>
---
arch/arm64/kvm/hyp/nvhe/early_alloc.c | 5 +++++
1 file changed, 5 insertions(+)Acked-by: Will Deacon <will@kernel.org> Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel