kvm/mmu/mmu.c

123 /* make pte_list_desc fit well in cache lines */
133  * cache locality.
945 static int pte_list_add(struct kvm_mmu_memory_cache *cache, u64 *spte,
954 		desc = kvm_mmu_memory_cache_alloc(cache);
970 			desc = kvm_mmu_memory_cache_alloc(cache);
1601 		       struct kvm_mmu_memory_cache *cache,
1614 	rmap_count = pte_list_add(cache, spte, rmap_head);
1627 	struct kvm_mmu_memory_cache *cache = &vcpu->arch.mmu_pte_list_desc_cache;
1629 	__rmap_add(vcpu->kvm, cache, slot, spte, gfn, access);
1713 static void mmu_page_add_parent_pte(struct kvm_mmu_memory_cache *cache,
1719 	pte_list_add(cache, parent_pte, &sp->parent_ptes);
2390 			       struct kvm_mmu_memory_cache *cache, u64 *sptep,
2409 	mmu_page_add_parent_pte(cache, sp, sptep);
3256 	 * Do not cache the mmio info caused by writing the readonly gfn
4070 	 * A nested guest cannot use the MMIO cache if it is using nested
4071 	 * page tables, because cr2 is a nGPA while the cache stores GPAs.
4407 		 * MMIO SPTE.  That way the cache doesn't need to be purged
4691  * and insert the current root as the MRU in the cache.
4708 		 * The swaps end up rotating the cache like this:
4728  * of the cache becomes invalid, and true is returned.
6474 static inline bool need_topup(struct kvm_mmu_memory_cache *cache, int min)
6476 	return kvm_mmu_memory_cache_nr_free_objects(cache) < min;
6505 	 * doesn't need to allocate a list.  Buffer the cache by the default
6559 	struct kvm_mmu_memory_cache *cache = &kvm->arch.split_desc_cache;
6594 		__rmap_add(kvm, cache, slot, sptep, gfn, sp->role.access);
6597 	__link_shadow_page(kvm, cache, huge_sptep, sp, flush);