[RFC] Inter-processor Mailboxes Drivers
ohad at wizery.com
Mon Feb 14 21:03:59 EST 2011
On Mon, Feb 14, 2011 at 12:01 PM, Jamie Iles <jamie at jamieiles.com> wrote:
> On Fri, Feb 11, 2011 at 03:19:51PM -0600, Meador Inge wrote:
>> 1. Hardware specific bits somewhere under '.../arch/*'. Drivers
>> for the MPIC message registers on Power and OMAP4 mailboxes, for
>> 2. A higher level driver under '.../drivers/mailbox/*'. That the
>> pieces in (1) would register with. This piece would expose the
>> main kernel API.
>> 3. Userspace interfaces for accessing the mailboxes. A
>> '/dev/mailbox1', '/dev/mailbox2', etc... mapping, for example.
> How about using virtio for all of this and having the mailbox as a
> notification/message passing driver for the virtio backend?
This is exactly what we are doing now, and it looks promising. expect
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