This saves about 20 clock cycles per vmexit by avoiding a local_irq_save/restore pair. The price is that nested VMX will break with KVM hosts < 3.16, because the "acknowledge interrupt on exit" feature becomes mandatory. What do you think?
Paolo Paolo Bonzini (2): KVM: x86: always use "acknowledge interrupt on exit" KVM: x86: use __kvm_guest_exit arch/x86/kvm/svm.c | 6 ++++++ arch/x86/kvm/vmx.c | 11 ++++------- arch/x86/kvm/x86.c | 11 ++--------- 3 files changed, 12 insertions(+), 16 deletions(-) -- 1.8.3.1
