From: Avi Kivity <avi@qumranet.com>
Date: Thu, 22 Feb 2007 10:58:31 +0000 (+0200)
Subject: KVM: Use a shared page for kernel/user communication when runing a vcpu
X-Git-Tag: v2.6.22-rc1~1008^2~60
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9a2bb7f486dc639a1cf2ad803bf2227f0dc0809d;p=pandora-kernel.git

KVM: Use a shared page for kernel/user communication when runing a vcpu

Instead of passing a 'struct kvm_run' back and forth between the kernel and
userspace, allocate a page and allow the user to mmap() it.  This reduces
needless copying and makes the interface expandable by providing lots of
free space.

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