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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-21 00:08:14 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-21 00:08:14 -0400 |
| commit | 1c37e483c205eff947de33a37545a07af71a5d73 (patch) | |
| tree | b0c01cf161ba63a55530c7136c657a160062421f /kernel/gsp_phys_booter.c | |
| parent | 243a40f6f715f410864c75731ad57062c6ce6fcb (diff) | |
| download | open-iov-1c37e483c205eff947de33a37545a07af71a5d73.tar.gz open-iov-1c37e483c205eff947de33a37545a07af71a5d73.zip | |
sema/boot: r391e print the shadow base pointer in the copy-out and bigcopy witnesses
Rule in/out a stale or duplicate vgpu->bars[1] shadow between the launch
copy-out (svc_fwd_req.vgpu) and the D2H reader (svc_copy's vgpu): the sum=0
runs show the write landing (OUT-PAGE-POST val8 = the sum) and the reader
of the same ledger page reading zeros 8 ms later with no logged writer in
between. Diagnostic only.
Diffstat (limited to 'kernel/gsp_phys_booter.c')
| -rw-r--r-- | kernel/gsp_phys_booter.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/gsp_phys_booter.c b/kernel/gsp_phys_booter.c index 5206f9b..d01bcf3 100644 --- a/kernel/gsp_phys_booter.c +++ b/kernel/gsp_phys_booter.c @@ -20959,7 +20959,7 @@ gr_page_unmapped: &rap, &rval); outwit++; - pr_info("vgsp-gr: OUT-PAGE-WIT va=0x%llx hpa=0x%llx bi=%u first8=%016llx last8=%016llx pre=%08x post=%08x res=%s pa=0x%llx ap=%u val8=%016llx\n", + pr_info("vgsp-gr: OUT-PAGE-WIT va=0x%llx hpa=0x%llx bi=%u first8=%016llx last8=%016llx pre=%08x post=%08x res=%s pa=0x%llx ap=%u val8=%016llx vbase=%px\n", req->data[wbi].va, req->data[wbi].hpa, bi, f8, (u64)get_unaligned_le64( @@ -20967,7 +20967,8 @@ gr_page_unmapped: 8), bounce_csum_in[bi], csum, rhave ? "ledger" : "none", - rpa, rap, rval); + rpa, rap, rval, + (void *)gsp_sema_gr_shadow_base()); } /* * OUT-ALIAS-WIT: identical first 8 bytes as @@ -21043,10 +21044,11 @@ gr_page_unmapped: if (gsp_sema_gr_va_snap(req->data[wbi].va, &rpa2, &rap2, &rval2)) { outwit++; - pr_info("vgsp-gr: OUT-PAGE-POST va=0x%llx hpa=0x%llx res_pa=0x%llx ap=%u val8=%016llx\n", + pr_info("vgsp-gr: OUT-PAGE-POST va=0x%llx hpa=0x%llx res_pa=0x%llx ap=%u val8=%016llx vbase=%px\n", req->data[wbi].va, req->data[wbi].hpa, rpa2, - rap2, rval2); + rap2, rval2, + (void *)gsp_sema_gr_shadow_base()); } } wrote++; |