Paolo Bonzini 6c7b2202e4 KVM: x86: avoid memslot check in NX hugepage recovery if it cannot succeed ... Since gfn_to_memslot() is relatively expensive, it helps to skip it if it the memslot cannot possibly have dirty logging enabled. In order to do this, add to struct kvm a counter of the number of log-page memslots. While the correct value can only be read with slots_lock taken, the NX recovery thread is content with using an approximate value. Therefore, the counter is an atomic_t. Based on https://lore.kernel.org/kvm/20221027200316.2221027-2-dmatlack@google.com/ by David Matlack. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2022-11-18 11:30:12 -05:00
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mmu_internal.h	KVM: x86/mmu: Add helper to convert SPTE value to its shadow page	2022-11-09 12:31:33 -05:00
mmu.c	KVM: x86: avoid memslot check in NX hugepage recovery if it cannot succeed	2022-11-18 11:30:12 -05:00
mmutrace.h	KVM: x86/mmu: Add RET_PF_CONTINUE to eliminate bool+int* "returns"	2022-05-12 09:51:42 -04:00
page_track.c	KVM: use __vcalloc for very large allocations	2022-03-08 09:30:57 -05:00
paging_tmpl.h	KVM: x86/mmu: Rename NX huge pages fields/functions for consistency	2022-11-09 12:31:31 -05:00
spte.c	KVM: x86/mmu: Properly account NX huge page workaround for nonpaging MMUs	2022-11-09 12:31:32 -05:00
spte.h	KVM: x86/mmu: Add helper to convert SPTE value to its shadow page	2022-11-09 12:31:33 -05:00
tdp_iter.c	KVM: x86/mmu: Don't bottom out on leafs when zapping collapsible SPTEs	2022-07-28 13:22:24 -04:00
tdp_iter.h	KVM: x86/mmu: Don't bottom out on leafs when zapping collapsible SPTEs	2022-07-28 13:22:24 -04:00
tdp_mmu.c	KVM: x86/mmu: simplify kvm_tdp_mmu_map flow when guest has to retry	2022-11-17 11:10:25 -05:00
tdp_mmu.h	KVM: x86/mmu: Add helper to convert SPTE value to its shadow page	2022-11-09 12:31:33 -05:00