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RE: [Xen-users] use PCI VGA card on domU, and questions about USB

        Just in case anyone thinks Ady was recommending ASUS or Gigabyte...  
I'm not positive, but I believe that when he says "(see Gigabyte or Asus)" he 
is saying see about them in your searches or in the thread he points to.  I'm 
pretty sure you DO NOT want to have a Gigabyte or Asus board if you are trying 
to do PCI Passthrough.  I have personal experience with ASUS and trying to get 
them to fix a problem with their BIOS is nearly impossible even when you have 
Windows and they will talk to you, if you are using Linux, forget about it.  
Regarding Gigabyte, I'm pretty sure they have publicly stated that they do not 
support hardware virtualization.

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Ady Deac
Sent: Wednesday, June 30, 2010 01:03
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] use PCI VGA card on domU, and questions about USB


All the AMD CPUs (I guess except for the lower end Semprons, but I guess 
those also apply) from the last (at least 4-5 years) have virtualization 
caps. It is shown as "svm" in the CPU flags:

Offcourse, the BIOS must support it too. And I guess you need to either 
buy another mobo (see Gigabyte or Asus), or hammer your mobo producer to 
release a BIOS to support it. What is your mobo anyways?

On 30.06.2010 00:18, Nick Couchman wrote:
>> I am pasting only the last core:
>> processor       : 3
>> vendor_id       : AuthenticAMD
>> cpu family      : 16
>> model           : 4
>> model name      : AMD Phenom(tm) II X4 965 Processor
>> stepping        : 3
>> cpu MHz         : 3415.488
>> cache size      : 512 KB
>> fpu             : yes
>> fpu_exception   : yes
>> cpuid level     : 5
>> wp              : yes
>> flags           : fpu de tsc msr pae mce cx8 apic mtrr mca cmov pat
>> clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext
>> 3dnow constant_tsc rep_good nonstop_tsc pni cx16 popcnt hypervisor
>> lahf_lm cmp_legacy extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
>> bogomips        : 6841.10
>> 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
>> It's almost latest processor available. It was bleeding edge when i
>> bought it. Bigger AMD are not compatible with AM3.
> Hmmm...Google searches don't turn up much for that CPU supporting VTd (or 
> whatever AMD calls I/O virtualization).  You might check out the specs on the 
> AMD site for that processor and see if they have anything.  I use Intel 
> processors, and I know Intel has a place on the specs for each of their 
> processors that tells about I/O virtualizaiton.
> -Nick
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Deac Mihai-Adrian

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