Xen devel - May 2013 - Re: [PATCH-v2] xen: Don't call arch_trigger_all_cpu_backtrace in dom0(pvm)

On 2013-04-10 00:36, Ian Campbell wrote:
> On Mon, 2013-04-08 at 08:42 +0100, Jan Beulich wrote:
>>>>> On 07.04.13 at 07:54, Zhenzhong Duan
<zhenzhong.duan@oracle.com> wrote:
>>> nmi isn''t supported in dom0, fallback to general all cpu
backtrace code.
>> Since when is sending NMIs not supported, and since when is this
>> Dom0-specific? If you want to deal with this, you should do so
>> properly: Special case sending NMIs in the respective Xen specific
>> code (using VCPUOP_send_nmi), and carry this out in a way not
>> dependent upon running (un)privileged.
> You''d also need to implement the upcall support for receiving
NMIs,
> which IIRC isn''t yet done for pvops.
Hi Ian,

Could you give a suggestion on which file to change to support NMI upcall?
I compare with vMCE code, made similar change.
Use VCPUOP_send_nmi to send nmi between pvm guest vcpus, but nmi isn''t 
triggered.

thanks
zduan