[ http://tools.oasis-open.org/issues/browse/VIRTIO-39?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Tsirkin updated VIRTIO-39:
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Proposal: ">http://mid.gmane.org/[email protected]> (was: ">http://mid.gmane.org/[email protected])
> pci device operation without BAR access
> ---------------------------------------
>
> Key: VIRTIO-39
> URL: http://tools.oasis-open.org/issues/browse/VIRTIO-39
> Project: OASIS Virtual I/O Device (VIRTIO) TC
> Issue Type: Improvement
> Reporter: Michael Tsirkin
> Assignee: Michael Tsirkin
>
> pci express spec forbids exclusive dependency on IO BAR accesses for device operation.
> on the other hand, restricted environments such as pxe have
> trouble accessing memory BARs.
> This calls for a fallback mechanism for device access.
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