On Mon, Dec 09, 2013 at 05:42:25PM +0800, Dave Young wrote: > kexec-tools use boot_params for getting the 1st kernel hardware_subarch, > the kexec kernel efi runtime support also need read the old efi_info from > boot_params. Currently it exists in debugfs which is not a good place for > such infomation. Per HPA, we should avoid of "sploit debugfs". > > In this patch /sys/kernel/boot_params are exported, also the setup_data is > exported as a subdirectory. kexec-tools is using debugfs for hardware_subarch > for a long time now so we're not removing it yet. > > Structure is like below: > > /sys/kernel/boot_params > |__ data /* boot_params in binary*/ > |__ setup_data > | |__ 0 /* the first setup_data node */ > | | |__ data /* setup_data node 0 in binary*/ > | | |__ type /* setup_data type of setup_data node 0, hex string */ > [snip] > |__ version /* boot protocal version (in hex, "0x" prefixed)*/ > > Changelog: > Greg: use __ATTR_RO() and group attr. > Matt and Boris: Documentation improvement, code indentation. > > Signed-off-by: Dave Young <[email protected]>
Acked-by: Borislav Petkov <[email protected]> -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
