Two patches to optimize the reserved bit and illegal EPT memtype/XWR checks, and more importantly, clean up an undocumented, subtle bitwise-OR in the code. v2: Rewrite everything. v1: https://lkml.kernel.org/r/20200108001859.25254-1-sean.j.christopherson@xxxxxxxxx Sean Christopherson (2): KVM: x86/mmu: Reorder the reserved bit check in prefetch_invalid_gpte() KVM: x86/mmu: Micro-optimize nEPT's bad memptype/XWR checks arch/x86/kvm/mmu/mmu.c | 26 ++++++++++++++------------ arch/x86/kvm/mmu/paging_tmpl.h | 23 +++++++++++++++++++---- 2 files changed, 33 insertions(+), 16 deletions(-) -- 2.24.1