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[0/4] KVM: X86: Improve guest TLB flushing

Message ID 20211019110154.4091-1-jiangshanlai@gmail.com (mailing list archive)
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Series KVM: X86: Improve guest TLB flushing | expand

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Lai Jiangshan Oct. 19, 2021, 11:01 a.m. UTC 
From: Lai Jiangshan <laijs@linux.alibaba.com>

The patchset focuses on the guest TLB flushing related to prev_roots.
It tries to keep CR3s in prev_roots and improves some comments.

Lai Jiangshan (4):
  KVM: X86: Fix tlb flush for tdp in kvm_invalidate_pcid()
  KVM: X86: Cache CR3 in prev_roots when PCID is disabled
  KVM: X86: Use smp_rmb() to pair with smp_wmb() in
    mmu_try_to_unsync_pages()
  KVM: X86: Don't unload MMU in kvm_vcpu_flush_tlb_guest()

 arch/x86/kvm/mmu.h     |  1 +
 arch/x86/kvm/mmu/mmu.c | 63 ++++++++++++++++++++++++++++++++----------
 arch/x86/kvm/x86.c     | 53 +++++++++++++++++++++++++++++------
 3 files changed, 95 insertions(+), 22 deletions(-)