From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Sun, 5 May 2013 12:51:47 +0000 (-0400)
Subject: xen/vcpu: Document the xen_vcpu_info and xen_vcpu
X-Git-Tag: v3.10-rc1~2^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a520996ae2e2792e1f90b74e67c974120c8a3b83;p=pandora-kernel.git

xen/vcpu: Document the xen_vcpu_info and xen_vcpu

They are important structures and it is not clear at first
look what they are for.

The xen_vcpu is a pointer. By default it points to the shared_info
structure (at the CPU offset location). However if the
VCPUOP_register_vcpu_info hypercall is implemented we can make the
xen_vcpu pointer point to a per-CPU location.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
[v1: Added comments from Ian Campbell]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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