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authorrusty <rusty@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652>2014-02-10 10:30:46 +0000
committerrusty <rusty@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652>2014-02-10 10:30:46 +0000
commit82ef43b92ab7d56f486cb31b2e0b26ce51bd1ea8 (patch)
tree4e8f96f71946e6d742d8f64ee082d2149147204d /introduction.tex
parent83e2126994d4bafc7269bdc123a4fb06c78ccc4d (diff)
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git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@215 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
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}
Efficient: Virtio devices consist of rings of descriptors
- for input and output, which are neatly separated to avoid cache
+ for both input and output, which are neatly laid out to avoid cache
effects from both driver and device writing to the same cache
lines.
Standard: Virtio makes no assumptions about the environment in which
- it operates, beyond supporting the bus attaching the device. Virtio
+ it operates, beyond supporting the bus to which device is attached.
+ In this specification, virtio
devices are implemented over PCI and other buses, and earlier drafts
- been implemented on other buses not included in this spec.
+ have been implemented on other buses not included here.
\footnote{The Linux implementation further separates the PCI virtio code
from the specific virtio drivers: these drivers are shared with
the non-PCI implementations (currently lguest and S/390).