commit c5c71a751676a5adecad8ac43ec85b6c4c66ebf0
author Andreas Sandberg <andreas.sandberg@arm.com> Mon Nov 07 18:21:43 2016 +0000
committer Andreas Sandberg <andreas.sandberg@arm.com> Thu Jun 07 17:33:30 2018 +0000
tree ade68beb4edf155b37285f9c573bb8e763f24d78
parent 409fbc653f5177f9f1da91877591a27b27302a3b

dev-arm: Add a MMIO transport interface for VirtIO

The MMIO interface currently only supports a subset of version 0.9.5
of the VirtIO specification. It has the following known limitations:

  * The queue size hint (the QUEUE_NUM register) is ignored.

  * Queue alignment is assumed to be hard-coded to
    VirtQueue::ALIGN_SIZE (4096 bytes).

  * Only 4096 byte pages are currently supported.

Change-Id: Ifd318f5e5bddab0b6a42d8c8af9ff2fbb477f98b
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Rekai Gonzalez Alberquilla <rekai.gonzalezalberquilla@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2326
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>