Re: [Xen-ia64-devel] Re: [Xen-devel] [PATCH 0/5][IA64][HVM] Windowscrashdump support

[Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>]

>On Tue, Jan 23, 2007 at 08:06:23AM +0000, Keir Fraser wrote:
>> On 23/1/07 2:40 am, "Masaki Kanno" <kanno.masaki@xxxxxxxxxxxxxx> wrote:
>> 
>> > In the ia64 machine, there is an INIT switch. By pushing the
>> > INIT switch, an INIT interruption is generated. The INIT
>> > interruption triggers off when the Windows collects the
>> > crashdump. (I attach a screenshot of the Windows crashdump.)
>> 
>> Does ia64 Windows generate a dump if you send it an NMI? That would be a
>> more generic mechanism that would allow x86 HVM to share the same domctl or
>> hvm_op. Otherwise we need a send_init hypercall for ia64 and a send_nmi
>> hypercall for x86, or we need a more vague generic name like
>> "trigger_dump_switch" (which actually is rather attractive now I think 
>> about
>> it).
>I support the feature too.
>
>I think being able to post an NMI/INIT is a good feature.  It allows you
>to test the feature if your bare hardware don't have it.
>

Hi Tristan,

Thanks for your comments. 

>Maybe os-init is not the best name.

Maybe os-init is not the best command name as you say. If you have idea 
of command name, could you send it?

>Maybe the balance between code in hypervisor (very small) and code in xm
>(larger) is not very good, but difficule to improve !

I examined oneself. I should have checked a target domain (HVM domain or 
PV domain) in hypervisor. I will send the patch which moved the check of 
target domain into hypervisor. Maybe not difficult to improve.

Best regards,
 Kan



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