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From: Simon Martin <furryfuttock@gmail.com>
To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: xen-devel@lists.xen.org
Subject: Re: Grant access to more than one dom
Date: Thu, 17 Apr 2014 12:38:54 -0300	[thread overview]
Message-ID: <197873202.20140417123854@gmail.com> (raw)
In-Reply-To: <1397747022.24638.306.camel@kazak.uk.xensource.com>

Hello Ian,

> Dom0 should create two grant refs, one for each of the other domains.

Now comes the next question. The dom0 app is running in userspace, so
I am using the /dev/xen/gntalloc device to allocate the pages. Looking
at the IOCTLs defined for this I don't see a function that will take
an existing map index and share it again.

I've had a quick look at Linux/drivers/xen/gntalloc.c and it doesn't
look too complicated to implement this, however I don't want to tread
on anybody's toes, also any chance that this could make it's way back
into kernel source?

-- 
Best regards,
 Simon                            mailto:furryfuttock@gmail.com

  parent reply	other threads:[~2014-04-17 15:38 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-17 14:58 Grant access to more than one dom Simon Martin
2014-04-17 15:03 ` Ian Campbell
2014-04-17 15:07   ` Simon Martin
2014-04-17 15:38   ` Simon Martin [this message]
2014-04-17 16:14     ` Ian Campbell
2014-04-17 16:57       ` Simon Martin
2014-04-17 17:16         ` Daniel De Graaf
2014-04-17 18:06           ` Simon Martin
2014-04-25 12:12             ` Simon Martin
2014-04-25 12:16               ` Ian Campbell
2014-04-25 12:18                 ` Simon Martin
2014-04-25 12:28                   ` Ian Campbell
2014-05-08 15:47             ` Simon Martin
2014-05-08 19:01               ` Daniel De Graaf
2014-05-08 20:03                 ` Simon Martin
2014-05-08 20:23                   ` Daniel De Graaf
2014-05-09 14:00                     ` Simon Martin
2014-06-05 16:10                       ` Simon Martin
2014-06-06  9:51                         ` Ian Campbell
2014-06-06 21:02                         ` Daniel De Graaf
2014-06-09 15:53                           ` Simon Martin
2014-06-09 17:15                             ` Daniel De Graaf
2014-06-10 18:48                               ` Simon Martin

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