From: Lai Jiangshan <laijs@xxxxxxxxxxxxxxxxx> permission_fault() calls two callbacks to get CPL and RFLAGS for SMAP, but it is unneeded for some cases, this patchset improves it. Lai Jiangshan (4): KVM: X86: Fix comments in update_permission_bitmask KVM: X86: Rename variable smap to not_smap in permission_fault() KVM: X86: Handle implicit supervisor access with SMAP KVM: X86: Only get rflags when needed in permission_fault() arch/x86/include/asm/kvm_host.h | 9 +++++++ arch/x86/kvm/mmu.h | 45 +++++++++++++++++++++------------ arch/x86/kvm/mmu/mmu.c | 8 +++--- arch/x86/kvm/x86.c | 20 ++++++++++++--- 4 files changed, 59 insertions(+), 23 deletions(-) -- 2.19.1.6.gb485710b