Re: [Xen-users] Xen Installation without virtualization enabled in Bios

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

On Monday 21 July 2008, Dustin Henning wrote:
>       The virtualization option in the BIOS is for HVM (Full
> Virtualization).  Seeing as how you had guests before this option was
> enabled, you are clearly using PV.  As such, the option would have no
> effect that I know of.  That said, your problem probably lies in Xen
> configuration. Is this your first Xen box?  Hopefully someone skilled at
> troubleshooting network connectivity issues in Xen can assist you with

Incidentally if you wanted to use HVM in future that should work fine also: 
Xen comes with HVM support built in, regardless of whether it was enabled 
when Xen was installed.  To get the best HVM results you should probably use 
the latest update of RHEL.  This shouldn't effect PV behaviour though, so 
don't worry about it until you've solved the existing networking problem.

Cheers,
Mark

>       Dustin
>
> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of s@l
> Sent: Monday, July 21, 2008 16:35
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] Xen Installation without virtualization enabled in
> Bios
>
>
> Hi there,
>
> Having a problem with Xen using RHEL 5.  Using a dell poweredge 1950 with
> BCM5708 integrated NIC's.
>
> 07:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708
> Gigabit Ethernet (rev 12)
>         Subsystem: Dell Unknown device 01b3
>         Control: I/O- Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr+
> Stepping- SERR+ FastB2B-
>         Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
> <TAbort- <MAbort- >SERR- <PERR-
>         Latency: 64 (16000ns min), Cache Line Size: 64 bytes
>         Interrupt: pin A routed to IRQ 16
>         Region 0: Memory at f4000000 (64-bit, non-prefetchable) [size=32M]
>         Capabilities: [40] PCI-X non-bridge device
>                 Command: DPERE- ERO- RBC=512 OST=8
>                 Status: Dev=07:00.0 64bit+ 133MHz+ SCD- USC- DC=simple
> DMMRBC=512 DMOST=8 DMCRS=32 RSCEM- 266MHz- 533MHz-
>         Capabilities: [48] Power Management version 2
>                 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
> PME(D0-,D1-,D2-,D3hot+,D3cold+)
>                 Status: D0 PME-Enable- DSel=0 DScale=1 PME-
>         Capabilities: [50] Vital Product Data
>         Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/0
> Enable-
>                 Address: 214082b132d03000  Data: 0b40
>
>
>
> Basically, I have this strange issue where everything is good, I can create
> my virtual guests, but there is some issue with network connectivity.  I
> can get to the outside world no problem from the virtual host, but on the
> guests, I can only ping the local machine, I cant ping or access anything
> on the outside world.
>
> At first I was taking a look at drivers and other network related problems,
> when I noticed that the virtualization option in the bios cpu settings was
> NOT enabled.  I enabled it, but im still having the same problem.
>
> My question is: Would installing RHEL 5 and Xen while this option was NOT
> enabled in the bios cause problems and perhaps cause this networking
> connectivity issue im experiencing? Do I need to reinstall xen?
>
> Info:
>
> version: xen-3.0.3-64.el5_2.1



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