[PATCH 0/2] Add detailed page size stats in KVM stats

Mingwei Zhang
2021-07-21T05:13:34Z

This commit basically adds detailed (large and regular) page size info to
KVM stats while preserves the existing metric: lpages.

To support legacy MMU and TDP mmu, we use atomic type for all page stats.

pre-v1 (internal reviewers):
- use atomic in all page stats and use 'level' as index. [sean]
- use an extra argument in kvm_update_page_stats for atomic/non-atomic.
[bgardon]
- should be careful on the difference between legacy mmu and tdp mmu.
[jingzhangos]

Mingwei Zhang (2):
kvm: mmu/x86: Remove redundant spte present check in mmu_set_spte
kvm: mmu/x86: Add detailed page size stats

arch/x86/include/asm/kvm_host.h | 9 ++++++
arch/x86/kvm/mmu.h | 2 ++
arch/x86/kvm/mmu/mmu.c | 53 +++++++++++++++++++++------------
arch/x86/kvm/mmu/tdp_mmu.c | 10 +++----
arch/x86/kvm/x86.c | 6 +++-
5 files changed, 54 insertions(+), 26 deletions(-)

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2.32.0.402.g57bb445576-goog