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[PATCH v2 0/9] x86/shadow: misc tidying
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 11 Jan 2023 14:51:11 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Tim Deegan <tim@xxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>
- Delivery-date: Wed, 11 Jan 2023 13:51:26 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
... or so I hope. The main observation was that we still have both
hash_vcpu_for_each() and hash_domain_for_each(), where the latter was
introduced in 2014/15 to replace the former. Only some eight years
later we can now complete this conversion. Everything else addresses
other things noticed along the road.
Note that patch 8 conflicts contextually but not functionally with
patches 3 and 4 from "x86/mm: address aspects noticed during XSA-410
work".
1: replace sh_reset_l3_up_pointers()
2: drop hash_vcpu_foreach()
3: rename hash_domain_foreach()
4: drop a few uses of mfn_valid()
5: L2H shadow type is PV32-only
6: x86/shadow: re-work 4-level SHADOW_FOREACH_L2E()
7: reduce effort of hash calculation
8: call sh_detach_old_tables() directly
9: harden shadow_size()
Jan
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