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2014-08-31VIRTIO-110: ARM's feedback for MMIO chapter, clarificationsmstsirkin
Those changes do not add nor remove any features and constitutes only error correction and editorial changes. * Extra clarifications for QueueReady and ConfigGeneration * Added alignment requirement section, to formalise hidden assumptions about register accesses Signed-off-by: Pawel Moll <pawel.moll@arm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@417 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-08-05VIRTIO-110: ARM's feedback for MMIO chapter, legacy sectionhornet
This patch makes clear that the legacy section is non-normative, removing all MUSTs. Those changes do not add nor remove any features and constitues only error correction and editorial changes. Signed-off-by: Pawel Moll <pawel.moll@arm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@416 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-08-05VIRTIO-110: ARM's feedback for MMIO chapter, trivial changeshornet
Those changes do not add nor remove any features and constitutes only error correction and editorial changes. * Typos and language mistakes in 4.2, 4.2.1, 4.2.2 and 4.2.2.2. * Extra clarifications for InterruptACK. Signed-off-by: Pawel Moll <pawel.moll@arm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@415 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-08-04legacy: grammar fixupmstsirkin
Legacy devices are "they" not "it". VIRTIO-113 Signed-off-by: Michael S. Tsirkin <mst@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@414 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-08-04legacy: consistently use past tensemstsirkin
Paragraph with general description of feature negotiation for legacy devices mixed present and past tense. As rest of legacy sections all use past tense, fix the only instance of the present tense: s/do/did/ for consistency. It might be argued that legacy devices still have these properties so present tense is more appropriate, on the other hand, using the past tense helps stress the fact that current spec does not attempt to fully describe the legacy device/driver behaviour: this text is only here to serve as motivation for the transitional device/driver requirements. VIRTIO-112 Signed-off-by: Michael S. Tsirkin <mst@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@413 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-07-30VIRTIO-111: Fix minor typosmstsirkin
Fix minor typos as reported in ARM's feedback. Signed-off-by: Pawel Moll <pawel.moll@arm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@412 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-07-30Revert "VIRTIO-111: Fix minor typos"mstsirkin
This reverts commit 8a3d1521930d9dacca4972d591ff720d614e37e8. Was not in CSD03, will re-apply immediately after updating REVISION. git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@409 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-07-23VIRTIO-111: Fix minor typoshornet
Fix minor typos as reported in ARM's feedback. Signed-off-by: Pawel Moll <pawel.moll@arm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@406 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-25pci: minor fomatting tweakmstsirkin
Make table look better. Drop spaces that make latexdiff stumble. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@386 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-25fixup pci: switch from subsystem id to device idmstsirkin
Patch sent to list (and applied by Rusty in commit fffcbe327c69e510239fff5627034aa2ab4b2d84 pci: switch from subsystem id to device id ) did not actually implement what commit log said it implements. The result is wrong for transitional devices: Adding 0xfff works for for net+block only; for transitional pci devices there is no fixed scheme: ~/projects/qemu/include # grep VIRTIO_ID hw/virtio/*.h hw/virtio/virtio-balloon.h:#define VIRTIO_ID_BALLOON 5 hw/virtio/virtio-blk.h:#define VIRTIO_ID_BLOCK 2 hw/virtio/virtio-net.h:#define VIRTIO_ID_NET 1 hw/virtio/virtio-rng.h:#define VIRTIO_ID_RNG 4 hw/virtio/virtio-scsi.h:#define VIRTIO_ID_SCSI 8 hw/virtio/virtio-serial.h:#define VIRTIO_ID_CONSOLE 3 ~/projects/qemu/include # grep VIRTIO hw/pci/*.h hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_NET 0x1000 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_BLOCK 0x1001 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_BALLOON 0x1002 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_CONSOLE 0x1003 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_SCSI 0x1004 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_RNG 0x1005 hw/pci/pci.h:#define PCI_DEVICE_ID_VIRTIO_9P 0x1009 I am guessing TC went by commit log when it approved the change, so fixing it up directly. Cc: Andrew Thornton <andrewth@google.com> Cc: Rusty Russell <rusty@ozlabs.org> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@385 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-17content.tex: VIRTIO-106: mention possibility of failing TMFspbonzini
This completes the review of virtio-scsi based on observations from Google. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@384 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-16fix erroneous reference to Subsystem Device IDpbonzini
Subsystem device ID only exists for PCI. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@383 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-16small virtio-serial fixrusty
nr_ports does not exist in the spec. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@382 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-09virtio-scsi: support well-known logical unitspbonzini
The REPORT LUNS well-known logical unit is useful because it lets you retrieve information about all targets with a single command. It also provides an easy way to send a no-op request. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@381 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-09consistent formatting of footnotespbonzini
Put the indicator before punctuation, and terminate the footnote with a period. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@380 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-09virtio-scsi: additional SHOULDificationpbonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@379 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-09virtio-scsi: fixes to protection informationpbonzini
pi_bytesin is in the device-readable section. Document lack of residual field. Use le32 instead of u32. This matches the new patch series that Nicholas sent for vhost-scsi. Cc: <nab@daterainc.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@378 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-05PCI: remove duplicate paragraph.rusty
I chose the one which used the full nomenclature. Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@377 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-05pci: switch from subsystem id to device idrusty
Switch virtio pci to use standard device id instead of using the subsystem id. Unfortunately, there's no system to the way KVM allocated device IDs to virtio devices, we'll just have to specify these using a table, and use a new range for future devices. For existing devices this results in two possible IDs that all drivers will need to match. Unfortunate, but the cost is small. As a nice side effect, this allows us to make non-transitional devices use IDs 0x40 and up, this reduces even further the chance that a non transitional device will match legacy drivers. And, it's probably a good idea to allow drivers to match specific subsystem IDs if they want to, so relax requirement for drivers to match all subsystem/vendor ID configurations, but allow them to do so. To avoid confusion, say "PCI Device ID" and "PCI Subsystem ID" everywhere, prefix "PCI" for other standard registers, for consistency. VIRTIO-102 Note: issue reporter suggested 0x10XX where XX is the virtio device ID. This would conflict with legacy devices, which seem to have used 7 IDs in the range 0x1000 to 0x103f without any system. Let's use a new range 0x1040 to 0x107f for non-transitional devices, and add a table documenting the transitional IDs used by in practice. (Approved at 2014-06-04 meeting: https://lists.oasis-open.org/archives/virtio/201406/msg00013.html ) Cc: Andrew Thornton <andrewth@google.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@376 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-06-05pci: set ISR bit on config change with MSI-Xrusty
config changes are slow path anyway, so we can as well set ISR bit to help drivers detect changes. This allows sharing config interrupts which is what issue reporter seems to ask for. VIRTIO-104 (Approved at 2014-06-04 meeting: https://lists.oasis-open.org/archives/virtio/201406/msg00013.html ) Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@375 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-31NEEDS_RESET: trivial clarificationmstsirkin
If device sets NEEDS_RESET before DRIVER_OK, it can't send notifications to driver. Make this clear. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@374 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-22Fix build of documentrusty
Error introduced in 59cd205cea "VIRTIO-98: Add DEVICE_NEEDS_RESET": seems that underscores in labels are verboten: [133] [134] (./virtio-v1.0-csprd02.aux ! Missing \endcsname inserted. <to be read again> \unhbox l.45 ...ts: Device Status Field}}{subsection.1}{}} Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@373 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-22content.tex: virtio-scsi review (VIRTIO-106)rusty
As prompted by Rusty, add a few more MUST/SHOULD items for both devices and drivers. Clarify semantics of max_channel/max_id/max_lun, task_attr and task management functions. (As per minutes of meeting 2014-05-20: https://lists.oasis-open.org/archives/virtio/201405/msg00034.html ) Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@372 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-22content.tex: add support for protection information (VIRTIO-108)rusty
This is a new feature that was suggested by Nicholas Bellinger, who also provided a prototype implementation for vhost-scsi. (As per minutes of meeting 2014-05-20: https://lists.oasis-open.org/archives/virtio/201405/msg00034.html ) Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@371 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-12VIRTIO-96: Assign device id to virtio inputrusty
Assign device id to virtio input As passed at meeting 2014-05-06: https://lists.oasis-open.org/archives/virtio/201405/msg00016.html Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@370 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-12VIRTIO-52: Make mac field read only.rusty
As passed at meeting 2014-05-06: https://lists.oasis-open.org/archives/virtio/201405/msg00016.html Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@369 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-12VIRTIO-107: Clarify net mac commands.rusty
As passed at meeting 2014-05-06: https://lists.oasis-open.org/archives/virtio/201405/msg00016.html Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@368 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-12VIRTIO-98: Add DEVICE_NEEDS_RESET.rusty
As passed at meeting 2014-05-06: https://lists.oasis-open.org/archives/virtio/201405/msg00016.html Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@367 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-12VIRTIO-87: limit descriptor chain length even with INDIRECT.rusty
As passed at meeting 2014-05-06: https://lists.oasis-open.org/archives/virtio/201405/msg00016.html Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@366 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-12VIRTIO-103: PCI: Note that turning off queue_enable is not supported.rusty
As passed at meeting 2014-05-06: https://lists.oasis-open.org/archives/virtio/201405/msg00016.html Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@365 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-12VIRTIO-103: PCI: require read-after-write on device_status reset.rusty
As passed at meeting 2014-05-06: https://lists.oasis-open.org/archives/virtio/201405/msg00016.html Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@364 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-12VIRTIO-99: Typo fixes.rusty
As passed at meeting 2014-05-06: https://lists.oasis-open.org/archives/virtio/201405/msg00016.html Reported-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@363 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-05-07net: fix device conformance sectionscornelia.huck
For the network device, we had two device normative sections both called "setting up receive buffers", neither of which was referenced in the conformance section. Let's rename the second one to "processing of packets" which seems to better match the actual contents and reference both of them from the conformance statement for network devices. Resolves VIRTIO-97. Agreed on the 2014/05/06 TC meeting. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@362 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13VIRTIO-60: avoid vring and VIRTIO_RING.rusty
These are never introduced, so use simpler names: virtq* for structures and VIRTIO_ for features. I added two notes about the old names, for helping people coming from the old spec. Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@327 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13net: make num_buffers field compulsory (VIRTIO-86)rusty
Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@326 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13block: deprecate FLUSH_OUT (VIRTIO-85)rusty
Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@325 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13net: clean up mq definition, receive buf size (VIRTIO-84)rusty
1) Instead of using N-1 everywhere, use N, and start receiveq etc at 1. This is less C like, but less confusing in english. 2) Weaken requirements for automatic steering to SHOULD, as otherwise we're insisting device record all flows forever. 3) Receive buffers must be able to hold data, so must be > header. Signed-off-by: Rusty Russell <rusty@au1.ibm.com> Conflicts: content.tex git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@324 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13VIRTIO-62: Explicit and specific.rusty
Avoid these words where they are redundant. This also lead me to notice that we were not consistent in the use of the term "device-specific configuration" in the PCI section, so cleaned that up too. Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@323 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13VIRTIO-63: Make sure examples are marked clearly.rusty
Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@322 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13VIRTIO-72: SHOULD/shouldrusty
Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@321 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13VIRTIO-73: MAY/may.rusty
Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@320 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13VIRTIO-74: required vs REQUIRED.rusty
Some really are clearest as they are, but most are changed to avoid confusion. Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@319 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-13VIRTIO-81: MUST vs mustrusty
Clean up the remaining lowercase "musts". We actually introduce a new normative section in the balloon; for the rest we clarify them one way or another. Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@318 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-05legacy framing: scsi hostmstsirkin
git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@316 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-05legacy message framing: console devicemstsirkin
git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@315 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-05block: legacy message framingmstsirkin
git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@314 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-05message framing: rusty's commentsmstsirkin
generic note on message framing specific requirements listed for net device only git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@313 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-05legacy devices: get rid of MUST assumemstsirkin
as Rusty points out MUST assume is not very good requirement. clarify it. git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@312 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-05transitional driver features: fix typos noted by Rustymstsirkin
git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@311 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
2014-03-03Formatting: use latex-style quoting everywhere.rusty
Doesn't look any different, but consistent. Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@310 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
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