Re: [Xen-devel] Future x86 emulator direction

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 14.12.16 at 09:53, <rcojocaru@xxxxxxxxxxxxxxx> wrote:
> On 12/13/2016 07:10 PM, Andrew Cooper wrote:
>> Do you have stats on which instructions you most frequently have to
>> singlestep because of lack of emulator support, or is the spread
>> essentially random?
> 
> Here's what I've gathered just now with nothing more than just starting
> up, firing up Internet Explorer and Firefox, and shutting down a few
> Windows 7 (32 and 64 bit) guests:
> 
> 64-bit guest 1:
> 
> (XEN) Mem event emulation failed: d1v0 32bit @ 0023:7489f1f8 -> 66 0f 12
> 44 24 04 ba 00 00 00 00 66 0f 28 e8 66
> 
> 64-bit guest 2:
> 
> (XEN) Mem event emulation failed: d2v1 32bit @ 0023:734cf031 -> 66 0f ef
> c0 51 53 8b c1 83 e0 0f 85 c0 75 7f 8b
> 
> 32-bit guest:
> 
> (XEN) Mem event emulation failed: d3v0 32bit @ 001b:7359f1f8 -> 66 0f 12
> 44 24 04 ba 00 00 00 00 66 0f 28 e8 66
> (XEN) Mem event emulation failed: d3v0 32bit @ 001b:7359e7d5 -> 66 0f 12
> 0d 90 f1 59 73 f2 0f 59 c8 66 0f 12 15
> (XEN) Mem event emulation failed: d3v0 32bit @ 0008:821d385f -> 0f 6e 06
> 0f 72 d0 18 0f ef 05 08 f6 32 82 0f 61
> 
> This is with 4.9-unstable master, and only took about 5 minutes per guest.

Thanks. These appear to all fall into the SSEn category, which I hope
to find time to take care of as a few big groups, once some more of
my pending patch queue has gone in.

Jan


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel