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[Xen-bugs] [Bug 1651] [SR-IOV]Guest cann't get ip with vf assgined

To: xen-bugs@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-bugs] [Bug 1651] [SR-IOV]Guest cann't get ip with vf assgined
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Sat, 4 Sep 2010 01:24:23 -0700
Delivery-date: Sat, 04 Sep 2010 01:24:28 -0700
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yang.z.zhang@xxxxxxxxx changed:

           What    |Removed                     |Added
             Status|RESOLVED                    |VERIFIED

------- Comment #2 from yang.z.zhang@xxxxxxxxx  2010-09-04 01:24 -------
verified at cs 22079

changeset:   22079:73b131807d87
user:        Allen Kay allen.m.kay@xxxxxxxxx
date:        Wed Sep 01 09:48:52 2010 +0100
summary:     x86 mm: revert check in clear_mmio_p2m_entry() changed in

x86 mm: revert check in clear_mmio_p2m_entry() changed in 21940:e7afe98afd43

valid_mfn() cannot be used here as MMIO pages are always above max_mem.
Also added sanity checking for type == p2m_mmio_direct before clearing
page table entry.  This should fix both VT-d and SR-IOV issues reported
recently as there are no SR-IOV specific code in Xen.  As far as Xen
is concern, SR-IOV virtual function is just another PCI device.

Signed-off-by: Allen Kay allen.m.kay@xxxxxxxxx
Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>

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