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[Xen-bugs] [Bug 1770] New: [VT-D] NIC cannot work in vmx guest

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Subject: [Xen-bugs] [Bug 1770] New: [VT-D] NIC cannot work in vmx guest
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Mon, 27 Jun 2011 03:01:05 -0700
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           Summary: [VT-D] NIC cannot work in vmx guest
           Product: Xen
           Version: unstable
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P1
         Component: HVM
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: yongjie.ren@xxxxxxxxx
                CC: yang.z.zhang@xxxxxxxxx

Assigned NICs cannot cannot work in guest. Guest can boot up, and the NIC
driver is installed in guest. It cannot get ip by 'dhclient'. This is
regression between CS:23546 and CS:23553. Chang set 23546 doesn't have this
issue. I use Intel 82574L and 82541PI Gigabit NICs.

Reproduce steps:
1.prepare a config file with "pci = [ '07:01.0' ]" ; the NIC 07:01.0 is stubbed
using pciback in host.
2.xl create myconfig
3.in guest, run 'dhclient eth0' (if eth0 is the NIC assigned)
4.in guest, run 'ifconfig', we found eth0 cannot get IP.

Service Arch (ia32/ia32e/IA64): ia32e
Guest Arch (ia32/ia32e/IA64): ia32e
Guest OS Type (Linux/Windows): Linux
xen changeset:   23553:eca057e4475c
xen-date:        Fri Jun 17 08:08:13 2011 +0100

pvops git:
commit 6d94b752e1363757f8eb4558e6f721a3e703cfe2
Author: Ian Campbell <ian.campbell@xxxxxxxxxx>
Date:   Wed Jun 1 16:48:15 2011 +0100

ioemu git:
commit e073e69457b4d99b6da0b6536296e3498f7f6599
Author: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date:   Fri Feb 11 17:54:51 2011 +0000

tboot changeset:
changeset:   252:794ec65050c1
tag:         tip
user:        Joseph Cihula <joseph.cihula@xxxxxxxxx>
date:        Mon Apr 11 11:35:06 2011 -0700
summary:     Added Developer's Certificate of Origin 1.1 to README

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