From 31741eb11a43066a3da92996bcfccfb42e248d44 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 12 Sep 2019 19:46:09 -0700 Subject: KVM: x86/mmu: Revert "Revert "KVM: MMU: reclaim the zapped-obsolete page first"" Now that the fast invalidate mechanism has been reintroduced, restore the performance tweaks for fast invalidation that existed prior to its removal. Paraphrashing the original changelog: Introduce a per-VM list to track obsolete shadow pages, i.e. pages which have been deleted from the mmu cache but haven't yet been freed. When page reclaiming is needed, zap/free the deleted pages first. This reverts commit 52d5dedc79bdcbac2976159a172069618cf31be5. Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- arch/x86/include/asm/kvm_host.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 78f0a919173e..53e0b956ed3c 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -865,6 +865,7 @@ struct kvm_arch { * Hash table of struct kvm_mmu_page. */ struct list_head active_mmu_pages; + struct list_head zapped_obsolete_pages; struct kvm_page_track_notifier_node mmu_sp_tracker; struct kvm_page_track_notifier_head track_notifier_head; -- cgit v1.2.3