Re: [Xen-devel] Hypercalls from user-space

[Keir Fraser <keir@xxxxxxx>]

/proc/xen/privcmd should be available in domU as well. You might need to
enable some dom0 build config options to get it though.

 -- Keir

On 05/10/2010 22:31, "Srujan D. Kotikela" <ksrujandas@xxxxxxxxx> wrote:

> Hi Jeremy,
> 
> I am able to do hypercalls in privileged domain. i want to invoke hypercalls
> (to send EVENT notifications) from DomU.
> Amy pointers for the same would be appreciated.
> 
> --
> Srujan D. Kotikela
> 
> 
> On Fri, Sep 24, 2010 at 2:14 PM, Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
>>  On 09/24/2010 11:38 AM, Srujan D. Kotikela wrote:
>>> Hi,
>>> 
>>> Can anyone tell me how to invoke hypercalls from user space? Or any
>>> pointers for the same.
>>> 
>>> It's urgent, please help.
>>> 
>> 
>> You can't directly invoke hypercalls from userspace.   In a privileged
>> domain you can use ioctls on /proc/xen/privcmd.
>> 
>>     J
> 
> 
> 
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