vfio/pds: Add multi-region support

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Only supporting a single region/range is limiting,
wasteful, and in some cases broken (i.e. when there
are large gaps in the iova memory ranges). Fix this
by adding support for multiple regions based on
what the device tells the driver it can support.

Signed-off-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://lore.kernel.org/r/20231117001207.2793-7-brett.creeley@amd.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

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Brett Creeley 2023-11-16 16:12:07 -08:00 • committed by Alex Williamson

parent 0c320f223e

commit 2e7c6feb4e

2 changed files with 156 additions and 68 deletions

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220

drivers/vfio/pci/pds/dirty.c

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4

drivers/vfio/pci/pds/dirty.h

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