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Subject: [OASIS Issue Tracker] Updated: (VIRTIO-58) clarify meaning of LEXX tags for transitional devices
[ http://tools.oasis-open.org/issues/browse/VIRTIO-58?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Michael Tsirkin updated VIRTIO-58: ---------------------------------- Description: WD currently has a note on legacy endian-ness before each structure. This violates the clean separation of legacy in separate sections. It's not too bad but we can improve this before 1.0. For legacy it's mostly consistent: device specific stuff and in-memory stuff is native endian Exceptions: PCI common virtio header is little endian but it is not documented using a struct. (balloon is only exception). CCW already uses BEXX MMIO isn't using C structs at all. was: WD currently has a note on legacy endian-ness before each structure. This violates the clean separation of legacy in separate sections. It's not too bad but we can improve this before 1.0. For legacy it's mostly consistent: device specific stuff and in-memory stuff is native endian Exceptions: PCI common virtio header is little endian but it is not documented using a struct. (balloon is only exception). CCW already uses BEXX MMIO isn't using C structs at all. Proposal: - in the pre-amble say "LEXX means: Little Endian for 1.0 interfaces and Guest Endian for Legacy interfaces". - change balloon config from C struct to a table specifying endian-ness explicitly instead of LEXX. - drop note from structures, if necessary add a legacy section per device 1392104032-2526-2-git-send-email-mst@redhat.com">http://mid.gmane.org/1392104032-2526-2-git-send-email-mst@redhat.com was: - in the pre-amble say "LEXX means: Little Endian for 1.0 interfaces and Guest Endian for Legacy interfaces". - change balloon config from C struct to a table specifying endian-ness explicitly instead of LEXX. - drop note from structures, if necessary add a legacy section per device > clarify meaning of LEXX tags for transitional devices > ----------------------------------------------------- > > Key: VIRTIO-58 > URL: http://tools.oasis-open.org/issues/browse/VIRTIO-58 > Project: OASIS Virtual I/O Device (VIRTIO) TC > Issue Type: Improvement > Reporter: Michael Tsirkin > Assignee: Michael Tsirkin > Priority: Minor > > WD currently has a note on legacy endian-ness > before each structure. > This violates the clean separation of legacy > in separate sections. > It's not too bad but we can improve this > before 1.0. > For legacy it's mostly consistent: > device specific stuff and in-memory stuff is native endian > Exceptions: > PCI common virtio header is little endian > but it is not documented using a struct. > (balloon is only exception). > CCW already uses BEXX > MMIO isn't using C structs at all. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://tools.oasis-open.org/issues/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
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