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| author | Alexey Kardashevskiy <[email protected]> | 2018-12-19 19:52:30 +1100 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2018-12-21 16:20:47 +1100 |
| commit | a15b1883fee11e07e5db7f003a863cc419647e79 (patch) | |
| tree | a678db40915c9936689e1d523828a87622758d0d /scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h | |
| parent | 58629c0dc34904d135af944d120eb23165ec3b61 (diff) | |
vfio_pci: Allow mapping extra regions
So far we only allowed mapping of MMIO BARs to the userspace. However
there are GPUs with on-board coherent RAM accessible via side
channels which we also want to map to the userspace. The first client
for this is NVIDIA V100 GPU with NVLink2 direct links to a POWER9
NPU-enabled CPU; such GPUs have 16GB RAM which is coherently mapped
to the system address space, we are going to export these as an extra
PCI region.
We already support extra PCI regions and this adds support for mapping
them to the userspace.
Signed-off-by: Alexey Kardashevskiy <[email protected]>
Reviewed-by: David Gibson <[email protected]>
Acked-by: Alex Williamson <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h')
0 files changed, 0 insertions, 0 deletions