From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 42636] PCI passthrough does not work with AMD iommu for PCI
 device
Date: Fri, 30 Mar 2012 11:35:50 GMT
Message-ID: <201203301135.q2UBZoCP025251@bugzilla.kernel.org>
References: <bug-42636-28872@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=42636


Alexandre DERUMIER <aderumier@odiso.com> changed:

           What    |Removed                     |Added
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                 CC|                            |aderumier@odiso.com




--- Comment #6 from Alexandre DERUMIER <aderumier@odiso.com>  2012-03-30 11:35:49 ---
Hi, 
for amd, pass

"iommu=pt iommu=1" to kernel options

you can also try to load kvm module with allow_unsafe_assigned_interrupts=1

echo "options kvm allow_unsafe_assigned_interrupts=1" >
/etc/modprobe.d/kvm_iommu_map_guest.conf

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