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| author | John Levon <john.levon@nutanix.com> | 2025-05-07 16:20:16 +0100 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2025-05-09 12:42:28 +0200 |
| commit | 95cdb024515b107e2574c5cbef0a43cafa0db77f (patch) | |
| tree | e2038e47dadf6d74de9ff47fbea76610a87224d8 /rust/qemu-api-macros | |
| parent | 38bf025d0dc80c1ae6e8f36093c5145c08b332d9 (diff) | |
| download | qemu-95cdb024515b107e2574c5cbef0a43cafa0db77f.zip qemu-95cdb024515b107e2574c5cbef0a43cafa0db77f.tar.gz qemu-95cdb024515b107e2574c5cbef0a43cafa0db77f.tar.bz2 | |
vfio: add region info cache
Instead of requesting region information on demand with
VFIO_DEVICE_GET_REGION_INFO, maintain a cache: this will become
necessary for performance for vfio-user, where this call becomes a
message over the control socket, so is of higher overhead than the
traditional path.
We will also need it to generalize region accesses, as that means we
can't use ->config_offset for configuration space accesses, but must
look up the region offset (if relevant) each time.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250507152020.1254632-12-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'rust/qemu-api-macros')
0 files changed, 0 insertions, 0 deletions