[TriLUG] TriLUG Digest, Vol 879, Issue 1

Wed Oct 28 23:34:40 EDT 2009

> Message: 3
> Date: Tue, 27 Oct 2009 14:35:01 -0400
> From: Justin <xjparkerx at gmail.com>
> Subject: Re: [TriLUG] TriLUG Digest, Vol 869, Issue 1
> To: Triangle Linux Users Group General Discussion <trilug at trilug.org>
> Message-ID: <4AE73D55.4080102 at gmail.com>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
> I'm pretty sure just about all of AMD's Athlon 64 bit proc's have AMD-V
> if that's what you mean by virtualization extensions. At least according
> to the x86 Virtulization wikipedia entry. And I'm almost positive I've
> seen a few pdf's that state that any AMD 64 bit proc. post 2700 series
> has the AMD-V extensions. However, some mboard manufacturers disabled it
> within the bios by default or didn't even add a bios menu item to toggle
> the setting. Chances are you've got it you might not be able to mess
> with it. Bios update maybe?
>

This system has a socket 939 AMD Athlon 64. The Motherboard is MSI K8N
Neo4. I've got a couple of these motherboards/cpus and I'm pretty sure
they do not have AMD-V. One of them is from late 2005.

dmidecode:

Processor Information
        Socket Designation: Socket 939
        Type: Central Processor
        Family: Athlon 64
        Manufacturer: AMD
        ID: F0 0F 02 00 FF FB 8B 07
        Signature: Family 15, Model 47, Stepping 0
        Flags:
                FPU (Floating-point unit on-chip)
                VME (Virtual mode extension)
                DE (Debugging extension)
                PSE (Page size extension)
                TSC (Time stamp counter)
                MSR (Model specific registers)
                PAE (Physical address extension)
                MCE (Machine check exception)
                CX8 (CMPXCHG8 instruction supported)
                APIC (On-chip APIC hardware supported)
                SEP (Fast system call)
                MTRR (Memory type range registers)
                PGE (Page global enable)
                MCA (Machine check architecture)
                CMOV (Conditional move instruction supported)
                PAT (Page attribute table)
                PSE-36 (36-bit page size extension)
                CLFSH (CLFLUSH instruction supported)
                MMX (MMX technology supported)
                FXSR (Fast floating-point save and restore)
                SSE (Streaming SIMD extensions)
                SSE2 (Streaming SIMD extensions 2)
        Version: AMD Athlon(tm) 64 Processor 3200+
        Voltage: 1.4 V
        External Clock: 201 MHz
        Max Speed: 3000 MHz
        Current Speed: 2010 MHz
        Status: Populated, Enabled
        Upgrade: Socket 939
        L1 Cache Handle: 0x000B
        L2 Cache Handle: 0x000D
        L3 Cache Handle: Not Provided
        Serial Number:
        Asset Tag:
        Part Number:

[root at trainwreck ~]# cat /proc/cpuinfo
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 47
model name	: AMD Athlon(tm) 64 Processor 3200+
stepping	: 0
cpu MHz		: 1000.000
cache size	: 512 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm
3dnowext 3dnow rep_good pni lahf_lm
bogomips	: 2009.81
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 tm stc

I think it would show SVM flag if it had AMD-V, like my AM2 workstation:

processor	: 3
vendor_id	: AuthenticAMD
cpu family	: 16
model		: 4
model name	: AMD Phenom(tm) II X4 945 Processor
stepping	: 2
cpu MHz		: 800.000
cache size	: 512 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 3
initial apicid	: 3
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid
pni monitor cx16 lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a
misalignsse 3dnowprefetch osvw ibs skinit wdt
bogomips	: 6020.56
TLB size	: 1024 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

> Justin
>
> Randy Barlow wrote:
>> John Brier wrote:
>>> Anyway the actual Windows XP VM was too underpowered to play video
>>> smoothly with playOn. My host was a Debian 5.0.1 Athlon 64 3200+ with
>>> 2 GB memory. I gave the windows guest 1 GB of memory and playon
>>> claimed the CPU was not adequate (it has a little color coded rating
>>> red/yellow/green) The CPU was listed as yellow. also, fwiw playon has
>>> a minimum requirement of 512 MB of memory.
>>>
>>> My system doesn't have virt extensions, I imagine if it did the guest
>>> might perform well enough. I may have to upgrade my router/server to
>>> accommodate this in the future. Hope this helps others.
>>
>> Virtualization extensions may help out in this scenario. You may also
>> try to add more virtual video memory to the VM. I have no idea if that
>> will be used heavily in this scenario, as I am not too familiar with
>> graphics systems, but it's probably worth a shot since it's easy to do.
>>
>
>
>
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> End of TriLUG Digest, Vol 879, Issue 1
> **************************************
>