This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1782206
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: disco
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https://bugs.launchpad.net/bugs/1782206
Title:
KVM enable SnowRidge Accelerator Interfacing Architecture (AIA)
Status in linux package in Ubuntu:
Incomplete
Status in qemu package in Ubuntu:
Triaged
Status in xen package in Ubuntu:
Incomplete
Bug description:
CPU core (Tremont) includes Accelerator Interfacing Architecture (AIA)
features including:
- UMONITOR/UMWAIT: Ring-3 MONITOR/MWAIT with timeout. For memory-based synch
with accelerators
- TPAUSE: Monitor-less wait (with timeout). For wait-on-multiple or
wait-for-interrupt usages
- MOVDIRI: 8B streaming doorbell write capability. For streaming accelerator
usages.
- MOVDIR64B: Non-temporal write with 64B guaranteed write-atomicity. For
latency critical accelerator usages
Upstream target linux 4.20/Qemu-3.10
Target Release: 19.04
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