On Tue, 2007-10-09 at 12:23 -0700, H. Peter Anvin wrote:Huang, Ying wrote:- Which fields of boot parameters should be exported directly inThe main this is that since this is a fixed-format, ABI-defined structure, regardless of individual fields it should be exported as a binary object. That is also the only way to deal with a kernel which may not itself know about specific items making the data available to other users, like kexec.
sysfs? Export all fields of boot parameters in sysfs is too complex
and unnecessary. Which fields should be?
It's not clear to me from reading the code what model you're using for exporting this data in sysfs. Could you describe it in some detail?
What I had envisioned would be an object for the boot_params structure and a systematic object for each linked-list object, at a very minimum.
OK. The directory structure is as follow:
+ sys + kernel + boot_params - version /* version of boot protocol */
- data /* binary file of boot_params */
+ setup_data + 0 - type /* type id of setup_data 0 */
- data /* binary file of setup_data 0 */
+ 1 - type /* type id of setup_data 1 */
- data /* binary file of setup_data 1 */
+ 2 - type
- data
...