From c7151a8dfefd11108de5b4293af2390962bcff71 Mon Sep 17 00:00:00 2001
From: Weidong Han <weidong.han@intel.com>
Date: Mon, 8 Dec 2008 22:51:37 +0800
Subject: [PATCH] Add/remove domain device info for virtual machine domain

Add iommu reference count in domain, and add a lock to protect iommu setting including iommu_bmp, iommu_count and iommu_coherency.

virtual machine domain may have multiple devices from different iommus, so it needs to do more things when add/remove domain device info. Thus implement separate these functions for virtual machine domain.

Signed-off-by: Weidong Han <weidong.han@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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