Messages in this thread | | | Date | Tue, 29 Mar 2022 22:28:10 +0000 | From | Sean Christopherson <> | Subject | Re: [PATCH v2 3/4] KVM: x86/mmu: explicitly check nx_hugepage in disallowed_hugepage_adjust() |
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On Tue, Mar 29, 2022, Sean Christopherson wrote: > > Fixes: b8e8c8303ff2 ("kvm: mmu: ITLB_MULTIHIT mitigation") > > Cc: stable@vger.kernel.org > > I vote to keep the Fixes tag, but drop the Cc: stable@ and NAK any MANUALSEL/AUTOSEL > for backporting this to stable trees. Yes, it's a bug, but the NX huge page zapping > kthread will (eventually) reclaim the lost performance. On the flip side, if there's > an edge case we mess up (see below), then we've introduced a far worse bug.
Doh, that's wrong. The whole problem is that these pages aren't on the NX list... I think I'd still vote to not send this to stable, but it's a weak vote.
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