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ANDROID: KVM: arm64: Don't recycle non-default PTEs

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When recycling host stage-2 page-table pages, we currenly blindly
unmap all 'non-moveable' regions. To prepare the ground for allowing the
mapping of those regions with non-default attributes, let's switch to
using the recently introduced kvm_pgtable_stage2_reclaim_leaf() helper
which will only reclaim pages containing PTEs with default attributes.

Bug: 264070847
Change-Id: I4a441a20abe84d2405efcfa403908078c10be841
Signed-off-by: Quentin Perret <qperret@google.com>
This commit is contained in:
Quentin Perret 2023-03-22 14:34:14 +00:00 • committed by Carlos Llamas
parent a701418f2f
commit cf2d193d9b
1 changed files with 1 additions and 1 deletions
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arch/arm64/kvm/hyp/nvhe/mem_protect.c
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@ -398,7 +398,7 @@ int host_stage2_unmap_reg_locked(phys_addr_t start, u64 size)
hyp_assert_lock_held(&host_mmu.lock);
ret = kvm_pgtable_stage2_unmap(&host_mmu.pgt, start, size);
ret = kvm_pgtable_stage2_reclaim_leaves(&host_mmu.pgt, start, size);
if (ret)
return ret;