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From: Shivapriya  Hiremath <shivpri.b@gmail.com>
To: dev@dpdk.org
Subject: [dpdk-dev] Why do we need iommu=pt?
Date: Mon, 20 Oct 2014 14:58:54 -0700
Message-ID: <CAKU5Fo_7fQHcYa-1ZBX8=D0SCkxZL8VLEpWYtJ6rG4DpV=g3gw@mail.gmail.com> (raw)


My question is that if the Poll mode  driver used the DMA kernel interface
to set up its mappings appropriately, would it still require that iommu=pt
be set?
What is the purpose of setting iommu=pt ?

Thank you.

             reply	other threads:[~2014-10-20 21:51 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-20 21:58 Shivapriya Hiremath [this message]
2014-10-20 22:39 ` Xie, Huawei
2014-10-21  7:32   ` Alex Markuze
2014-10-21 16:53     ` Shivapriya Hiremath
2014-10-21 19:10       ` Zhou, Danny
2014-10-22  7:35         ` alex
2014-10-22  8:53           ` Liang, Cunming
2014-10-22 15:21             ` Zhou, Danny
2014-10-23  7:49               ` Alex Markuze
2014-10-27 17:27               ` Shivapriya Hiremath
2014-10-27 17:32                 ` Zhou, Danny
2014-10-30 23:22                 ` Zhou, Danny
2014-10-31  0:05                   ` Shivapriya Hiremath

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