Re: [Qemu-devel] [PATCH 15/35] tcg-s390: Query instruction extensions that are installed.

[Richard Henderson]

On 06/11/2010 01:06 AM, Aurelien Jarno wrote:
>> That said, all the hardware to which either I or agraf have access are the 
>> latest
>> z10 machines.  Frankly I expect that to be true of most if not all machines, 
>> since
>> I think it's just a microcode update which everyone with an active support 
>> contract
>> can get.
>>
> 
> FYI, that's the /proc/cpuinfo of s390 machines I have (more or less)
> access:
> 
> features        : esan3 zarch msa ldisp 
> features        : esan3 zarch stfle msa ldisp eimm dfp
> features        : esan3 zarch stfle msa ldisp eimm dfp etf3eh highgprs 

Interesting that your first one doesn't have stfle.  That one will have to
go through the SIGILL path.  I would be very interested to have you test 
that code path.

Also, what era is that second machine without highgprs?  Is it running an
old kernel, or a 32-bit kernel?


r~