WebClean up the minimums in mmu_topup_memory_caches() to document the driving mechanisms behind the minimums. Now that encountering an empty cache is unlikely to trigger BUG_ON(), it is less dangerous to be more precise when defining the minimums. For rmaps, the logic is 1 parent PTE per level, plus a single rmap, and WebThe only interesting delta from v2 is that patch 18 is updated to handle a conflict with arm64's p4d rework. Resolution was straightforward (famous last words). This series resurrects Christoffer Dall's series[1] to provide a common MMU memory cache implementation that can be shared by x86, arm64 and MIPS.

LKML: Vipin Sharma: Re: [Patch v4 13/18] KVM: mmu: Add …

WebAs of commit f5a1e9f89504f ("KVM: MMU: remove callto kvm_mmu_pte_write from walk_addr"), the FNAME(walk_addr) flow nolonger add rmaps via kvm_mmu_pte_write(). … Web+static int mmu_topup_memory_cache(struct kvm_mmu_memory_cache *cache, + struct kmem_cache *base_cache, int min) +{+ return __mmu_topup_memory_cache(cache, … the sheats goldstein

Chapter 7. Virtual Memory System FreeBSD Documentation Portal

WebAs mentioned in “Reaction to events” above, kvm will cache MMIO information in leaf sptes. When a new memslot is added or an existing memslot is changed, this information may … WebYes but doing so would add CPU cost to zero the memory on allocation. Someone would need to do some performance testing to confirm that the cost of zeroing is acceptable. > Also, MIPS doesn't > use __GFP_ZERO, I think it might … my search doesn\\u0027t work