Rusty Russell
2014-03-13 03:18:58 UTC
Hi all!
On Tuesday the committee approved the second working draft for
public review: there'll be a formal announcement once that comes out.
But meanwhile, here's a summary of changes. We had a great deal of
feedback (thanks!), and you can see the subversion repository and JIRA
bug tracking detail individual changes.
IMPORTANT CHANGES:
2.3 Configuration Space:
- Explicitly allow config space read before feature negotiation (r207)
4.2 Virtio Over MMIO:
- Configuration space offset corrected (r177)
- QueueReady register moved (r194)
5.1 Network Device:
- num_buffers field now compulsory in non-legacy (r326)
OTHER:
General:
- The unexplained "ring" references are renamed "virtq" (r327)
- Correction of informal use of MUST/SHOULD/MAY etc
- Minor clarifications of requirements throughout
- Separation of normative requirements into specific sections
- Field/register names are all italicised for clarity
- References and their URLs fixed
- Many TeX and other formatting improvements
- Many typo and thinko fixes.
2.4 Virtqueues:
- Fix VIRTIO_RING_F_INDIRECT_DESC when referring to EVENT_IDX (r235)
- Define "device-readable" and "device-writable" for clarity (r237)
4.1 Virtio Over PCI Bus:
- Legacy layout table corrected (r198)
- Largely rewritten and reordered (r232-r234, r239-r241, r255)
- Non-transitional devices revision ID now SHOULD not MUST (r301)
4.2 Virtio Over MMIO:
- Notification register name fixed (r179)
- Device tree example fixed (r283)
4.3 Virtio Over Channel I/O:
- struct virtio_feature_desc features field endianness corrected (r173)
- Explicit endian used in struct virtio_rev_info (r193)
- Fix requirements for processing adapter interrupts (r281)
5 Device Types:
- GPU device id 16 reserved (r244)
- Timer/block device id 17 reserved (r280)
5.1 Network Device:
- Added multiqueue support from old draft (r166)
- Added VIRTIO_NET_F_MAC_ADDR from old draft (r177)
- Automatic steering is SHOULD not MUST (r324)
- Receive buffers must be larger than header, not >= (r324)
5.2 Block Device:
- Fix description of legacy status field (r204)
- VIRTIO_BLK_T_FLUSH_OUT deprecated (r325)
5.3 Console Device:
- VIRTIO_CONSOLE_F_EMERG_WRITE from old draft (r197)
5.5 Memory Balloon Device
- Deprecated, and ID 13 reserved for new one (r279)
8 Creating New Device Types:
- Moved to Appendix, as it is non-normative (r259)
9 Conformance
- A proper conformance clause with references (r278)
- Transitional devices & drivers are now normative (r288-r300)
Thanks,
Rusty.
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On Tuesday the committee approved the second working draft for
public review: there'll be a formal announcement once that comes out.
But meanwhile, here's a summary of changes. We had a great deal of
feedback (thanks!), and you can see the subversion repository and JIRA
bug tracking detail individual changes.
IMPORTANT CHANGES:
2.3 Configuration Space:
- Explicitly allow config space read before feature negotiation (r207)
4.2 Virtio Over MMIO:
- Configuration space offset corrected (r177)
- QueueReady register moved (r194)
5.1 Network Device:
- num_buffers field now compulsory in non-legacy (r326)
OTHER:
General:
- The unexplained "ring" references are renamed "virtq" (r327)
- Correction of informal use of MUST/SHOULD/MAY etc
- Minor clarifications of requirements throughout
- Separation of normative requirements into specific sections
- Field/register names are all italicised for clarity
- References and their URLs fixed
- Many TeX and other formatting improvements
- Many typo and thinko fixes.
2.4 Virtqueues:
- Fix VIRTIO_RING_F_INDIRECT_DESC when referring to EVENT_IDX (r235)
- Define "device-readable" and "device-writable" for clarity (r237)
4.1 Virtio Over PCI Bus:
- Legacy layout table corrected (r198)
- Largely rewritten and reordered (r232-r234, r239-r241, r255)
- Non-transitional devices revision ID now SHOULD not MUST (r301)
4.2 Virtio Over MMIO:
- Notification register name fixed (r179)
- Device tree example fixed (r283)
4.3 Virtio Over Channel I/O:
- struct virtio_feature_desc features field endianness corrected (r173)
- Explicit endian used in struct virtio_rev_info (r193)
- Fix requirements for processing adapter interrupts (r281)
5 Device Types:
- GPU device id 16 reserved (r244)
- Timer/block device id 17 reserved (r280)
5.1 Network Device:
- Added multiqueue support from old draft (r166)
- Added VIRTIO_NET_F_MAC_ADDR from old draft (r177)
- Automatic steering is SHOULD not MUST (r324)
- Receive buffers must be larger than header, not >= (r324)
5.2 Block Device:
- Fix description of legacy status field (r204)
- VIRTIO_BLK_T_FLUSH_OUT deprecated (r325)
5.3 Console Device:
- VIRTIO_CONSOLE_F_EMERG_WRITE from old draft (r197)
5.5 Memory Balloon Device
- Deprecated, and ID 13 reserved for new one (r279)
8 Creating New Device Types:
- Moved to Appendix, as it is non-normative (r259)
9 Conformance
- A proper conformance clause with references (r278)
- Transitional devices & drivers are now normative (r288-r300)
Thanks,
Rusty.
This publicly archived list offers a means to provide input to the
OASIS Virtual I/O Device (VIRTIO) TC.
In order to verify user consent to the Feedback License terms and
to minimize spam in the list archive, subscription is required
before posting.
Subscribe: virtio-comment-***@lists.oasis-open.org
Unsubscribe: virtio-comment-***@lists.oasis-open.org
List help: virtio-comment-***@lists.oasis-open.org
List archive: https://lists.oasis-open.org/archives/virtio-comment/
Feedback License: https://www.oasis-open.org/who/ipr/feedback_license.pdf
List Guidelines: https://www.oasis-open.org/policies-guidelines/mailing-lists
Committee: https://www.oasis-open.org/committees/virtio/
Join OASIS: https://www.oasis-open.org/join/