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xen-devel
Re: [Xen-devel] PCI Passthrough to HVM on xen-unstable
Han, Weidong wrote:
> Pls check your BIOS to see whether it's VT-d capable, and enable it
> first if you want to use it. Seems your configures are correct, pls
> check your BIOS.
I don't see an option for "Intel VT for Directed I/O" when "Intel Virtualization
Technology" is enabled. My understanding is that VT-d is a motherboard feature
and not a processor feature.
I have done some limited research looking around. I am confused whether I can
get VT-d to work with just a BIOS upgrade or I would be required to upgrade my
box altogther. If you have some info off the top of your head to clarify things
for me, I would appreciate it.
> Jambunathan K wrote:
>> (Resubmitting my original post with 'xm dmesg' output)
>>
>> I am working on S5000VSA Intel Server Board with the following cpu
>> spec.
>>
>> XEN-PEER-RHEL5 $ cat /proc/cpuinfo
>> processor : 0
>> vendor_id : GenuineIntel
>> cpu family : 6
>> model : 15
>> model name : Intel(R) Xeon(R) CPU E5345 @ 2.33GHz
>> stepping : 7
>> cpu MHz : 2327.512
>> cache size : 4096 KB
>> physical id : 0
>> siblings : 1
>> core id : 0
>> cpu cores : 1
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 10
>> wp : yes
>> flags : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov
>> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm
>> constant_tsc up pni monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
>> bogomips : 4661.90
>> clflush size : 64
>> cache_alignment : 64
>> address sizes : 36 bits physical, 48 bits virtual
>> power management:
>>
>> Is my box vt-d capable? If the answer is yes proceed ahead to the
>> details. If
>> the answer is no, how can a novice user like me identify whether or
>> not his box
>> is vt-d capable.
>>
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