/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/include/linux/edd.h * Copyright (C) 2002, 2003, 2004 Dell Inc. * by Matt Domsch <Matt_Domsch@dell.com> * * structures and definitions for the int 13h, ax={41,48}h * BIOS Enhanced Disk Drive Services * This is based on the T13 group document D1572 Revision 0 (August 14 2002) * available at http://www.t13.org/docs2002/d1572r0.pdf. It is * very similar to D1484 Revision 3 http://www.t13.org/docs2002/d1484r3.pdf * * In a nutshell, arch/{i386,x86_64}/boot/setup.S populates a scratch * table in the boot_params that contains a list of BIOS-enumerated * boot devices. * In arch/{i386,x86_64}/kernel/setup.c, this information is * transferred into the edd structure, and in drivers/firmware/edd.c, that * information is used to identify BIOS boot disk. The code in setup.S * is very sensitive to the size of these structures. */ #ifndef _LINUX_EDD_H #define _LINUX_EDD_H #include <uapi/linux/edd.h> #ifndef __ASSEMBLY__ extern struct edd edd; #endif /*!__ASSEMBLY__ */ #endif /* _LINUX_EDD_H */ |