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KVM: arm64: Return EAGAIN for invalid PTE in attr walker

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Return EAGAIN for invalid PTEs in the attr walker, signaling to the
caller that any serialization and/or invalidation can be elided.

Link: https://lore.kernel.org/r/20221202185156.696189-4-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Oliver Upton 2022-12-02 18:51:53 +00:00
parent ddcadb297c
commit 76259cca47
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/kvm/hyp/pgtable.c
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@ -1048,7 +1048,7 @@ static int stage2_attr_walker(const struct kvm_pgtable_visit_ctx *ctx,
struct kvm_pgtable_mm_ops *mm_ops = ctx->mm_ops;
if (!kvm_pte_valid(ctx->old))
return 0;
return -EAGAIN;
data->level = ctx->level;
data->pte = pte;