[coreboot] [PATCH] YABEL: update documentation of debug flags

Pattrick Hueper phueper at hueper.net
Tue Mar 17 14:27:25 CET 2009


Hi,

updated the debug flag documentation in util/x86emu/yabel/debug.h to
make it easier to understand what can be set using
CONFIG_YABEL_DEBUG_FLAGS option.

Cheers, Patty

Signed-off-by: Pattrick Hueper <phueper at hueper.net>
---
 util/x86emu/yabel/debug.h |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+), 0 deletions(-)

diff --git a/util/x86emu/yabel/debug.h b/util/x86emu/yabel/debug.h
index 987029a..ee14dfd 100644
--- a/util/x86emu/yabel/debug.h
+++ b/util/x86emu/yabel/debug.h
@@ -35,6 +35,28 @@ extern void x86emu_dump_xregs(void);
 static inline void clr_ci(void) {};
 static inline void set_ci(void) {};

+/* Set CONFIG_YABEL_DEBUG_FLAGS is a binary switch that allows you
+ * to select the following items to debug. 1=on 0=off. After you
+ * decide what you want to debug create the binary value, convert to hex
+ * and set the Option (Ex. CONFIG_YABEL_DEBUG_FLAGS = 0x31FF //Debug All).
+ *
+ * |-DEBUG_JMP - print info about JMP and RETF opcodes from x86emu
+ * ||-DEBUG_TRACE_X86EMU - print _all_ opcodes that are executed by
x86emu (WARNING: this will produce a LOT of output)
+ * |||-Currently unused
+ * ||||-Currently unused
+ * |||||-Currently unused
+ * ||||||-DEBUG_PNP - Print Plug And Play access made by option rom
+ * |||||||-DEBUG_DISK - Print Disk I/O related messages, currently unused
+ * ||||||||-DEBUG_PMM - Print messages related to POST Memory Manager (PMM)
+ * |||||||||-DEBUG_VBE - Print messages related to VESA BIOS
Extension (VBE) functions
+ * ||||||||||-DEBUG_PRINT_INT10 - let INT10 (i.e. character output)
calls print messages to Debug output
+ * |||||||||||-DEBUG_INTR - Print messages related to interrupt handling
+ * ||||||||||||-DEBUG_CHECK_VMEM_ACCESS - Print messages related to
accesse to certain areas of the virtual Memory (e.g. BDA (BIOS Data
Area) or Interrupt Vectors)
+ * |||||||||||||-DEBUG_MEM - Print memory access made by option rom
(NOTE: this also includes accesses to fetch instructions)
+ * ||||||||||||||-DEBUG_IO - Print I/O access made by option rom
+ * 11000111111111 - Max Binary Value, Debug All (WARNING: - This
could run for hours)
+ */
+
 #define DEBUG_IO 0x1
 #define DEBUG_MEM 0x2
 // set this to print messages for certain virtual memory accesses
(Interrupt Vectors, ...)
--
1.6.2
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-update-documentation-of-yabel-debug-flags.patch
Type: text/x-diff
Size: 2316 bytes
Desc: not available
URL: <http://www.coreboot.org/pipermail/coreboot/attachments/20090317/f53c14da/attachment.bin>


More information about the coreboot mailing list