diff options
Diffstat (limited to 'kernel/gsp_sema_service.c')
| -rw-r--r-- | kernel/gsp_sema_service.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/kernel/gsp_sema_service.c b/kernel/gsp_sema_service.c index fb00685..b354437 100644 --- a/kernel/gsp_sema_service.c +++ b/kernel/gsp_sema_service.c @@ -5265,7 +5265,8 @@ static int svc_copy(struct nv_vgpu_device *vgpu, u64 dst, u64 src, size_t total, * these copies; this separates a wrong resolution from a wrong copy. */ if ((total >= (1u << 20) || - (dst_virt && dst_orig >= SVC_VAS_FLOOR)) && bigcopy_log < 24) { + (dst_virt && dst_orig >= SVC_VAS_FLOOR)) && + bigcopy_log < gsp_sema_bigcopy_log_max) { u8 sb[16] = {0}, db[16] = {0}; bigcopy_log++; @@ -10838,6 +10839,17 @@ bool gsp_sema_copy_dst_pin_guard = 1; * just-built client table is fresh), logged loudly. */ unsigned gsp_sema_copy_dst_guard_ms = 3000; + +/* + * COPYWIT fail4: per-boot budget for the sema-bigcopy resolution witnesses + * (svc_copy's large-copy proof: both operands' VA -> pa/aperture/provenance + * plus the first 16 bytes each side). The shipped default kept the boot's + * head only; a failing-client run happens minutes later, so the budget is a + * module parameter now - raise it for a discrimination cycle and correlate + * each D2H's resolved source PA with the booter's OUT-PAGE-WIT copy-out PA + * for the same device VA. 0 disables the lines. + */ +unsigned gsp_sema_bigcopy_log_max = 24; #define SVC_DST_GUARD_SLOTS 16 struct svc_dst_guard { u64 va_page; |