lkml.org 
[lkml]   [2016]   [Jun]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[RFC PATCH 0/2] KVM: x86: guest exit microoptimization
Date
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

\
 
 \ /
  Last update: 2016-06-16 10:41    [W:0.129 / U:4.784 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site