From: Michael S. Tsirkin <mst@redhat.com>
Date: Thu, 4 Dec 2014 16:49:58 +0000 (+0200)
Subject: virtio: add API to detect legacy devices
X-Git-Tag: omap-for-v3.19/fixes-rc1~129^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6098c30423cb1f0f5a4d0a5495e2670e274e544;p=pandora-kernel.git

virtio: add API to detect legacy devices

transports need to be able to detect legacy-only
devices (ATM balloon only) to use legacy path
to drive them.

Add a core API to do just that.
The implementation just blacklists balloon:
not too pretty, but let's not over-engineer.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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