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Re: [Xen-users] pci passthrough on RHEL 4.5

To: "Kumar, Venkat" <Venkat.Kumar@xxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] pci passthrough on RHEL 4.5
From: "Jerry Bao" <bcj_sec@xxxxxxxxxxx>
Date: Sun, 22 Jun 2008 12:47:28 +0800
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That document is for full-virtualized guests, while, my domU is paravitualized domU. That rpms don't work for it.
But thak you all the same for your help.


--Jerry

----- Original Message ----- From: "Kumar, Venkat" <Venkat.Kumar@xxxxxxx>
To: "Bao Chunjie" <bcj_sec@xxxxxxxxxxx>; <xen-users@xxxxxxxxxxxxxxxxxxx>
Sent: Friday, June 20, 2008 4:23 PM
Subject: RE: [Xen-users] pci passthrough on RHEL 4.5


From the dmesg output it looks like your PV drivers are not loaded.
Check this link for installing and configuring PV drivers http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/en-US/RHEL510/html/Para-Virtualized_Drivers/chap-Para-Virtualized_Drivers-Installation_and_Configuration_of_Para_Virtualised_Drivers_on_Red_Hat_Enterprise_Linux_3.html


================================
Venkata Kumar Duvvuru,
LSI Engenio,
Adv. Development,
Bangalore.
Mob: +91-9880318542
Off : +91-80-41978700 ( Extn : 3544 )
================================
-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Bao Chunjie
Sent: Friday, June 20, 2008 11:28 AM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] pci passthrough on RHEL 4.5

Hi there,

  I have a Dell T3400 Workstation with CentOS5.1 as dom0.  I have hidden
a network interface in dom0 to pass it to domU.  The domU can come up with
the NIC when it's OS is CentOS5.1 or RHEL5.  But when it comes to RedHat4.5
, the NIC can not be found.

  As I type the command "lspci" in RHEL4.5 domU, it returned:
      pcilib: Cannot open /proc/bus/pci
      lspci: Cannot find any working access method.

  And I found the three lines in "dmesg"  output:
      XENBUS: Device with no drvier: device/vbd/51713
      XENBUS: Device with no driver: device/pci/0
      XENBUS: Device with no driver: device/vif/0


  After that, I tried to rebuild redhat4.5's kernel, and set:
      CONFIG_PCI=y
      CONFIG_XEN_PCIDEV_FRONTEND=y
  in the config file "kernel-2.6.9-i686-xenU.config".

  But the new kernel make no difference in the above scenario. I found,
in the file "kernel-2.6.9-i686-xenU.config" that "CONFIG_PCI is not set"
appears twice, one of which can not be changed, otherwise, kernel build
will fail.

  Does anyone has similar experience on this issue? Thanks a lot!

--Jerry

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