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From: Simon Martin <furryfuttock@gmail.com>
To: xen-devel@lists.xen.org
Subject: Realtime access to PCI NIC
Date: Mon, 7 Jul 2014 13:21:06 +0100	[thread overview]
Message-ID: <724187406.20140707132106@gmail.com> (raw)
In-Reply-To: <1083121389.20140707122233@gmail.com>

Hi all,

I am reading through the mini-os pcifront.c as an example of how to
implement direct access to a PCI device. However looking at the code
all access seems to go via the PCI Backend driver, which means that I
am subject to the latencies and jitter of the Xen scheduling.

Reading the documentation about PCI Passthrough I imagined that I
would have direct access to the PCI hardware once the handover from
dom0 as performed. Is that correct? If so, how do I implement that?

I am using an Intel processor that has VT-d so that should be
possible.

Any suggestions?


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

  reply	other threads:[~2014-07-07 12:21 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-03 11:13 Consuming PCI device in PV kernel Simon Martin
2014-07-03 18:09 ` Konrad Rzeszutek Wilk
2014-07-07  8:21   ` Simon Martin
2014-07-07 11:22     ` Simon Martin
2014-07-07 12:21       ` Simon Martin [this message]
2014-07-08 14:46         ` Realtime access to PCI NIC Ian Campbell
2014-07-10  7:47           ` Simon Martin
2014-07-08 15:01       ` Consuming PCI device in PV kernel Konrad Rzeszutek Wilk
2014-07-10  7:54         ` Simon Martin
2014-07-11 16:47           ` Dario Faggioli
2014-07-15  8:37             ` Simon Martin
2014-07-15 14:56               ` Konrad Rzeszutek Wilk
2014-07-18 14:37       ` Simon Martin
2014-07-18 19:09         ` Konrad Rzeszutek Wilk
2014-07-21 10:13           ` Simon Martin
2014-07-21 10:53             ` Ian Campbell
2014-07-25 12:56               ` Simon Martin
2014-07-25 13:10                 ` Ian Campbell
2014-07-25 13:21                   ` Simon Martin
2014-07-25 13:37                     ` Ian Campbell
2014-07-25 13:50                       ` Andrew Cooper
2014-07-25 14:20                         ` Simon Martin
2014-07-25 14:25                           ` Andrew Cooper
2014-07-25 14:30                             ` Simon Martin
2014-07-25 14:33                               ` Ian Campbell
2014-07-25 14:36                                 ` Simon Martin
2014-07-25 14:28                       ` Simon Martin

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