Zhihui Zhang 2f0a6397dd KVM: VMX: check use I/O bitmap first before unconditional I/O exit
According to Table C-1 of Intel SDM 3C, a VM exit happens on an I/O instruction when
"use I/O bitmaps" VM-execution control was 0 _and_ the "unconditional I/O exiting"
VM-execution control was 1. So we can't just check "unconditional I/O exiting" alone.
This patch was improved by suggestion from Jan Kiszka.

Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Zhihui Zhang <zzhsuny@gmail.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2014-01-08 19:01:40 -02:00
..
2013-11-19 11:44:15 -08:00
2013-11-15 14:26:38 -08:00