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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-30 06:44:10 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-30 06:44:10 -0400 |
| commit | cbacce079c12378b1d210a5713eda4f4a03696e9 (patch) | |
| tree | 08dc22532d0b14afa45790a15c3c7541fbac2a7b /kernel/gsp_sema_service.h | |
| parent | 7cd1b17fc04cf20609ed9402cb3d466710e59eff (diff) | |
| download | open-iov-cbacce079c12378b1d210a5713eda4f4a03696e9.tar.gz open-iov-cbacce079c12378b1d210a5713eda4f4a03696e9.zip | |
sema-svc: destination-keyed copy watch (dump page-table writes)
sema_copy_dst=dumps the source bytes of every copy whose destination falls
in the given page, so the 32-byte page-directory updates the guest writes
into vidmem can be read directly and their entry encoding learned.
Diffstat (limited to 'kernel/gsp_sema_service.h')
| -rw-r--r-- | kernel/gsp_sema_service.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/gsp_sema_service.h b/kernel/gsp_sema_service.h index 234ec2f..51397b9 100644 --- a/kernel/gsp_sema_service.h +++ b/kernel/gsp_sema_service.h @@ -100,6 +100,9 @@ extern unsigned gsp_sema_copy_watch; /* Data-path watch: 8-byte value matched in copy src/dst and push bytes. */ extern u64 gsp_sema_copy_pat; +/* Data-path watch: dump copies landing in this page (source bytes). */ +extern u64 gsp_sema_copy_dst; + /* CE pending-entry grace window in ms before the release fallback fires. */ extern unsigned gsp_sema_ce_grace_ms; |