20-24 September 2021
US/Pacific timezone

PKRAM feature development

23 Sep 2021, 10:00
30m
Microconference3/Virtual-Room (LPC Virtual)

Microconference3/Virtual-Room

LPC Virtual

150
Performance and Scalability MC Performance and Scalability MC

Speaker

Anthony Yznaga

Description

Preserved-over-kexec memory storage or PKRAM provides an API for saving memory pages of the currently executing kernel so that they may be restored after kexec into a new kernel. PKRAM provides a flexible way for doing this without requiring that the amount of memory used be a fixed size created a priori.

One use case for PKRAM is preserving guest memory and/or auxillary supporting
data (e.g. iommu data) across a kexec reboot of the host, and there is interest in extending it to work with emulated or real persistent memory.

Let's discuss the current state of PKRAM, its limitations, and future direction.

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Primary author

Anthony Yznaga

Presentation Materials

There are no materials yet.