Re: [Xen-users] xen and 64 bit host OSes

[Sven Uebelacker <uebelacker@xxxxxxx>]

Hi Mark,

Am Donnerstag, 15. September 2005 19:12 schrieb Mark Williamson:
> > > 1) Can i install a x86 32-bit xen kernel on x86_64 pc,
> > > without problems?
> >
> > I tried it but got no running system.
>
> Should work - what version of Xen were you using?

I used the Xen 2.0 and it holds after requesting some modules. With Xen 3.0 
it boots without that.

First I tried the SuSE 9.3 Xen kernel, but that one stops after "NET: 
Registered protocol family 16"...

> > So I used the x86_64 Xen 3.0 unstable
> > Version. Other difficulty: I have two Xeon CPUs and the standard Xen
> > 3.0 only uses one of them without hyperthreading...
>
> That's pretty weird - when did you try this?  If it was a while ago, it
> could have been before Xen OSes could support SMP internally (Xen itself
> has always supported balancing multiple UP guests over several CPUs).
>
> It really *should* work on the unstable tree now, since it's in
> pre-release stabilisation.  Can you try again with the latest unstable? 
> If it doesn't work, now would be a good time to let us know ;-)

My version is from 2005-09-14 04:22 (xen-unstable-install-x86_64.tgz). Maybe 
I have used the wrong one? Do I need some special configuration for SMP? 
These were my first steps, so I tried the binary ones. Should I make my one 
Xen kernel?

> We want Xen 3.0 to support the vast majority of x86 and x86_64 machines. 
> We should run on almost anything native Linux works on.

Maybe a "cat /proc/cpuinfo" helps out?

Thanx for help,
Sven.


Xen 3.0 unstable kernel:
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 4
model name      :                   Intel(R) Xeon(TM) CPU 3.20GHz
stepping        : 1
cpu MHz         : 3200.282
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca 
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm 
constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips        : 6396.31
clflush size    : 64
cache_alignment : 128
address sizes   : 36 bits physical, 48 bits virtual



SuSE normal kernel: (same for processor 1-3)
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 4
model name      :                   Intel(R) Xeon(TM) CPU 3.20GHz
stepping        : 1
cpu MHz         : 3200.259
cache size      : 1024 KB
physical id     : 0
siblings        : 2
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca 
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm 
pni monitor ds_cpl cid cx16 xtpr
bogomips        : 6324.22
clflush size    : 64
cache_alignment : 128
address sizes   : 36 bits physical, 48 bits virtual
power management:

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