Messages in this thread | | | Date | Fri, 24 Jun 2022 17:18:05 +0000 | Subject | [PATCH 0/3] KVM: x86/mmu: Cleanups for eager page splitting | From | Sean Christopherson <> |
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Eager page splitting cleanups for a few minor things that were noted in code review but didn't make it into the committed code.
The last patch in particular is a bit more urgent than I first realized. I had forgotten that pte_list_desc is now 128 bytes, and I also had a brain fart and thought it was just allocating pointers, i.e. 8 bytes. In other words, I was thinking the 513 object buffer was "only" wasting ~8kb per VM, whereas it actually costs ~64kb per VM.
Sean Christopherson (3): KVM: x86/mmu: Avoid subtle pointer arithmetic in kvm_mmu_child_role() KVM: x86/mmu: Use "unsigned int", not "u32", for SPTEs' @access info KVM: x86/mmu: Buffer nested MMU split_desc_cache only by default capacity
arch/x86/kvm/mmu/mmu.c | 53 ++++++++++++++++++++++++++++-------------- 1 file changed, 35 insertions(+), 18 deletions(-)
base-commit: 4b88b1a518b337de1252b8180519ca4c00015c9e -- 2.37.0.rc0.161.g10f37bed90-goog
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