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Re: [Xen-users] [Xen-devel] Request for input: Extended event channel support



On 10 Apr 2013, at 03:45, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:

> On Thu, 2013-03-28 at 12:54 +0000, Anil Madhavapeddy wrote:
>> Yes, except that in Mirage's case we're single vCPU only, and use
>> multiple VMs to act as parallel processes with explicit message
>> passing.
>> 
>> But we would still need an event channel for the vchan shared ring, in
>> this case too... 
> 
> That would be between two mirage guests though, unless you are
> envisaging mirage "processes" with hundreds of thousands of "threads"?

That's correct: most of channels should be directly between guests and
not to dom0.  It's convenient to be able to do this via dom0 for some
services such as xenstore/xenconsoled, but we could work around this
without too much difficulty.

George: my use case certainly isn't a blocker for 4.3.  We can maintain
local patches for this specialised use case.

-anil

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