bhyve and AMD

[Anish]

> (Anish - is nRIP required ?)
Yes, nRIP is required and it will be hard to find AMD processor with SVM
support that doesn't have it. We used Phenom II for bhyve port on AMD which
is 2+ years old and has RVI and nRIP support. I use
http://instlatx64.atw.hu/ to check SVM CPUID capability and looks like
after Phenom II, all of them have both of SVM features.

CPUID func 8000000A: 00000001-00000040-00000000-0000000F

                                                      ^^

reg[0] LSB = 0x0F indicate that it has NP/RVI(Bit0) and nRIP(bit3) support.


Regards,

Anish




On Wed, Sep 11, 2013 at 2:03 PM, Peter Grehan <grehan at freebsd.org> wrote:

> Hi,
>
>     No, that's the main one.
>>>
>>
>> [DN:]
>> When you say that that's the "main" one, do you mean that there are
>> also other features that an AMD processor must have, besides RVI, to
>> be compatible with bhyve, but that might be absent in some AMD
>> processors with RVI?  If so, what other features should I look for?
>>
>
>  There are some optional features that can be used, but I believe RVI is
> the only mandatory one
>
>  (Anish - is nRIP required ?)
>
>  (I'm now shopping around for dedicated server hosting for a
>> forthcoming demo of the possible bhyve front end I mentioned
>> earlier.  To that end, I need to find an otherwise inexpensive
>> server with a processor on which bhyve can run.)
>>
>
>  As mentioned before, it will be hard to find one that doesn't have the
> necessary support.
>
> later,
>
> Peter.
>