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| author | Oliver Upton <oliver.upton@linux.dev> | 2022-12-02 19:51:53 +0100 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2023-01-12 22:09:20 +0100 |
| commit | 76259cca479501579b0c524826c25fcc8bb90e97 (patch) | |
| tree | 6cdded89f42ae1fe334e452dd53c25a780bceb50 /arch/arm64/kvm/hyp/pgtable.c | |
| parent | KVM: arm64: Ignore EAGAIN for walks outside of a fault (diff) | |
| download | linux-76259cca479501579b0c524826c25fcc8bb90e97.tar.xz linux-76259cca479501579b0c524826c25fcc8bb90e97.zip | |
KVM: arm64: Return EAGAIN for invalid PTE in attr walker
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>
Diffstat (limited to 'arch/arm64/kvm/hyp/pgtable.c')
| -rw-r--r-- | arch/arm64/kvm/hyp/pgtable.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c index 98818214a479..204e59e05674 100644 --- a/arch/arm64/kvm/hyp/pgtable.c +++ b/arch/arm64/kvm/hyp/pgtable.c @@ -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; |