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James Gowans

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pkernfs: Persisting guest memory and kernel/device state safely...Linux Plumbers Conference 20232023-11-13
Proposal to preserve guest RAM and kernel/device state across kexec by storing page tables and driver blobs in a new in‑memory persistent filesystem: pkernfs…
Talk on
Cooperative DMA in a memory-oversubscribed environmentLinux Plumbers Conference 20222022-09-12
Proposes making IOMMU page tables dynamic by adding a new ioctl VFIO_MAP_DMA_UNPINNED, hooking VFIO into MMU notifiers and an IOMMU domain callback remap_pte…
Talk on
Preserving guest memory across kexecLinux Plumbers Conference 20222022-09-12
Proposes carving a large persistent PFN pool out of host RAM, mounting a new muse filesystem backed by that memory, and letting a user-space control process…
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