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-rw-r--r--tools/guest-diag/nvkmstrace.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/guest-diag/nvkmstrace.c b/tools/guest-diag/nvkmstrace.c
index 411de6b..ca72e46 100644
--- a/tools/guest-diag/nvkmstrace.c
+++ b/tools/guest-diag/nvkmstrace.c
@@ -3,6 +3,7 @@
#include <stdio.h>
#include <stdarg.h>
#include <stdint.h>
+#include <string.h>
#include <dlfcn.h>
#include <sys/ioctl.h>
@@ -36,10 +37,24 @@ int ioctl(int fd, unsigned long req, ...)
if (p->address && p->size) {
unsigned char *q = (unsigned char *)(uintptr_t)p->address;
unsigned n = p->size < 64 ? p->size : 64, i;
+
fprintf(stderr, " data:");
for (i = 0; i < n; i++)
fprintf(stderr, " %02x", q[i]);
fprintf(stderr, "\n");
+ if (p->size >= 700) {
+ /* reply.status candidates: request = 32 + 4 +
+ * 4*1 (NvBool=NvU8) + 16*(32+4) = 616 bytes */
+ unsigned o;
+
+ for (o = 600; o <= 700; o += 4) {
+ unsigned v;
+ memcpy(&v, q + o, 4);
+ if (v <= 16)
+ fprintf(stderr, " small@%u=%u\n",
+ o, v);
+ }
+ }
}
return rc;
}