From: Avi Kivity <avi@qumranet.com>
Date: Thu, 8 Nov 2007 16:19:20 +0000 (+0200)
Subject: KVM: VMX: Use vmx to inject real-mode interrupts
X-Git-Tag: v2.6.25-rc1~1138^2~162
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c5623e3e42e94927d02a6693875badf15692970;p=pandora-kernel.git

KVM: VMX: Use vmx to inject real-mode interrupts

Instead of injecting real-mode interrupts by writing the interrupt frame into
guest memory, abuse vmx by injecting a software interrupt.  We need to
pretend the software interrupt instruction had a length > 0, so we have to
adjust rip backward.

This lets us not to mess with writing guest memory, which is complex and also
sleeps.

Signed-off-by: Avi Kivity <avi@qumranet.com>
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