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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-24 10:48:08 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-24 10:48:08 -0400 |
| commit | 93431bdd896d9e6d9a25bebef0fb1af308dd64cd (patch) | |
| tree | 2c6b44e8b3fca4edd24a6a904e370a5c3e899d22 /tools/guest-diag/scan.c | |
| parent | 775c61c34fdccb32179d0cb6239db62b0b42e867 (diff) | |
| download | open-iov-93431bdd896d9e6d9a25bebef0fb1af308dd64cd.tar.gz open-iov-93431bdd896d9e6d9a25bebef0fb1af308dd64cd.zip | |
kernel: enlarge the pin table and its probe window; tools: bridge client mappings into the service
The pin table became the primary VA->PA store once push-buffer regions and
bridged client mappings started adding thousands of pages per boot; at
8192 slots with an 8-probe window, inserts were silently dropped and
lookups missed at half load. 32768 slots and a 32-probe window keep the
mapped set intact.
tools/guest-diag/{guest_pmap_all.py,bridge_sems.sh} translate the CUDA
client's /dev/nvidia* mappings through the guest's own pagemap and inject
each present page into the service as a sysmem pin. With the client's
semaphore pages pinned the service applies their releases into the page
the client polls (verified: applied 67 -> 109, misses stop growing for
those VAs), where before every write went to the vidmem shadow.
Diffstat (limited to 'tools/guest-diag/scan.c')
0 files changed, 0 insertions, 0 deletions