[PATCH v3 0/2] Keep cr3 cached in VMCS

Avi Kivity
2010-12-22T14:21:04Z

This patchset keeps cr3 cached in the VMCS (GUEST_CR3) instead of syncing
it every exit. Saves a VMREAD/VMWRITE on Intel with EPT enabled.

Avi Kivity (2):
KVM: Replace reads of vcpu->arch.cr3 by an accessor
KVM: Fetch guest cr3 from hardware on demand
v3: mark cr3 as available when we write it
remove misleading comment in vmx_decache_cr3()
v2: fix ept identity pagetable leak into guest cr3

arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/kvm_cache_regs.h | 7 +++++++
arch/x86/kvm/mmu.c | 6 +++---
arch/x86/kvm/svm.c | 13 +++++++++----
arch/x86/kvm/vmx.c | 29 ++++++++++++++++++++---------
arch/x86/kvm/x86.c | 21 ++++++++++++---------
6 files changed, 53 insertions(+), 25 deletions(-)