How To Use Xen Virtualization ; Chips For Virtualization

Robert L Cochran cochranb at speakeasy.net
Tue Jun 12 22:32:32 UTC 2007


I just installed Fedora 7 on my AMD Athlon 64 X2 4800+ X86_64 machine. 
I'm planning to attempt installing a guest OS tonight -- probably CentOS5.

--------------------------------------------------------------

Question 1

Currently, I just boot F7 with the xen kernel, running Domain-0 and I go 
my merry way logging in as myself and installing software, doing email, 
etc. But I wonder if this is accepted practice? Or should I be 
installing F7 again a second time as a guest OS and doing user and 
development stuff under that?

Here is where I am now virtualization wise:

[root at bobcp4 ~]# xm list
Name                                      ID   Mem VCPUs      State   
Time(s)
Domain-0                                   0  1880     2     r-----    503.8

------------------------------------------------------

Question 2

My AMD Athlon 64 chip listed above doesn't support full virtualization 
e.g. there is no 'svn' in the /proc/cpuinfo flags.  I have this chip 
installed in an Asrock 939SLI32-eSATA2 motherboard. Can anyone suggest a 
new processor I can buy which supports full virtualization? I'd prefer 
an AMD processor and I could replace the motherboard. The Asrock board 
is rock solid -- I love it -- but I could replace it.


[root at bobcp4 ~]# cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 35
model name      : AMD Athlon(tm) 64 X2 Dual Core Processor 4800+
stepping        : 2
cpu MHz         : 2410.848
cache size      : 1024 KB
physical id     : 0
siblings        : 1
core id         : 0
cpu cores       : 1
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 
clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 
3dnow pni lahf_lm cmp_legacy
bogomips        : 6028.73
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp

processor       : 1
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 35
model name      : AMD Athlon(tm) 64 X2 Dual Core Processor 4800+
stepping        : 2
cpu MHz         : 2410.848
cache size      : 1024 KB
physical id     : 1
siblings        : 1
core id         : 0
cpu cores       : 1
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 
clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 
3dnow pni lahf_lm cmp_legacy
bogomips        : 6028.73
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp


Thanks

Bob Cochran




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