20-24 September 2021
US/Pacific timezone

Status of Dynamic MSIx and IMS opens

23 Sep 2021, 09:05
30m
Microconference2/Virtual-Room (LPC Virtual)

Microconference2/Virtual-Room

LPC Virtual

150
VFIO/IOMMU/PCI MC VFIO/IOMMU/PCI MC

Speakers

Ashok Raj Megha Dey

Description

Current MSIx allows one chance to allocate all required interrupt resources. The rework in progress introduces a new API to allow adding new interrupt resources on demand. We will run through some of the options. VFIO usage isn't correct in its usage today. Quick review on proposed VFIO changes for MSI and MSIx to make sure there is proper feedback to VM's

IMS has some unresolved opens.
- DSA format vs. device-specific format.
- Support for IMS layout in system memory

No slides planned since we need Thomas for this discussion. :-)

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Primary authors

Ashok Raj Megha Dey

Presentation Materials