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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-11-12 21:39:29 -0500 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-11-12 21:39:29 -0500 |
| commit | 9b91798df5a59d628d627c8596a2295be0a47eaa (patch) | |
| tree | 00b48b49118ebbfc7d65df9a6d75d2de78d18ece /wiki/open-iov.org/index.php?title=File:IOCTL_set_VFIO_container.png&oldid=343.html | |
| parent | 9f32d544a59eea41d4770b0867be6b8684468406 (diff) | |
| download | open-iov-9b91798df5a59d628d627c8596a2295be0a47eaa.tar.gz open-iov-9b91798df5a59d628d627c8596a2295be0a47eaa.zip | |
vgsp: X-DMA wall witness for 0x1000013; add params-r1624.txt (rich bring-up set)
One rate-limited (0.5 s) sema-xchan line per pass for the X DDX channel:
rrc/uok/upa/uas/put/get/last/ring_pa/entry0 - names the decode-gate state
independently of the shared userdp budget. Diagnostic only, no behaviour
change. params-r1624.txt is the rich r1624 insmod set as a durable
tools/guest-diag file (INSMOD_PARAMS=tools/guest-diag/params-r1624.txt).
Context (c130/c131 with the rich set): the DDX DMA test now PASSES on most
attempts (tracker release decoded + delivered); the remaining gap is the
USERD speculative-latch lifetime (a latch that delivered the test kick is
REJECTED 15 s later with no PUT advance; the next generation then adopts a
stale VRAM block, put=2 get=0, and the retry window closes) plus a later
'Push buffer object allocation failed: 0x51 NV_ERR_NO_MEMORY' (emulated heap
accounting; 1872 MiB free).
Diffstat (limited to 'wiki/open-iov.org/index.php?title=File:IOCTL_set_VFIO_container.png&oldid=343.html')
0 files changed, 0 insertions, 0 deletions