Messages in this thread | | | Date | Fri, 12 Mar 2021 09:15:30 +0000 | From | Quentin Perret <> | Subject | Re: [PATCH v4 27/34] KVM: arm64: Always zero invalid PTEs |
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On Thursday 11 Mar 2021 at 17:33:38 (+0000), Will Deacon wrote: > On Wed, Mar 10, 2021 at 05:57:44PM +0000, Quentin Perret wrote: > > kvm_set_invalid_pte() currently only clears bit 0 from a PTE because > > stage2_map_walk_table_post() needs to be able to follow the anchor. In > > preparation for re-using bits 63-02 from invalid PTEs, make sure to zero > > Why do you exclude bit 1 from this range?
Hmm, no good reason really. I wanted to play games with invalid table mappings at some point, but dropped the idea and forgot to update the commit message. My bad, I'll fix it up.
Thanks, Quentin
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