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| author | Ralph Campbell <rcampbell@nvidia.com> | 2020-07-23 15:29:59 -0700 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-07-28 15:48:42 -0300 |
| commit | 1a77decd0caed0bc5b6f5e474981d574076f0841 (patch) | |
| tree | 2c2c9cecf6faea2b21bbe38ce10be0e7574182bb /lib/test_hmm.c | |
| parent | b223555dc4ed6efc321d23e78e55197cf0080ef3 (diff) | |
nouveau: fix storing invalid ptes
When migrating a range of system memory to device private memory, some of
the pages in the address range may not be migrating. In this case, the non
migrating pages won't have a new GPU MMU entry to store but the
nvif_object_ioctl() NVIF_VMM_V0_PFNMAP method doesn't check the input and
stores a bad valid GPU page table entry.
Fix this by skipping the invalid input PTEs when updating the GPU page
tables.
Link: https://lore.kernel.org/r/20200723223004.9586-2-rcampbell@nvidia.com
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'lib/test_hmm.c')
0 files changed, 0 insertions, 0 deletions