mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 10:48:17 +07:00
5b83683f32
This patch adds basic runtime services support for EFI x86_64 system. The main file of the patch is the addition of efi_64.c for x86_64. This file is modeled after the EFI IA32 avatar. EFI runtime services initialization are implemented in efi_64.c. Some x86_64 specifics are worth noting here. On x86_64, parameters passed to EFI firmware services need to follow the EFI calling convention. For this purpose, a set of functions named efi_call<x> (<x> is the number of parameters) are implemented. EFI function calls are wrapped before calling the firmware service. The duplicated code between efi_32.c and efi_64.c is placed in efi.c to remove them from efi_32.c. Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
#ifndef _ASM_BOOTPARAM_H
|
|
#define _ASM_BOOTPARAM_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/screen_info.h>
|
|
#include <linux/apm_bios.h>
|
|
#include <linux/edd.h>
|
|
#include <asm/e820.h>
|
|
#include <asm/ist.h>
|
|
#include <video/edid.h>
|
|
|
|
struct setup_header {
|
|
__u8 setup_sects;
|
|
__u16 root_flags;
|
|
__u32 syssize;
|
|
__u16 ram_size;
|
|
#define RAMDISK_IMAGE_START_MASK 0x07FF
|
|
#define RAMDISK_PROMPT_FLAG 0x8000
|
|
#define RAMDISK_LOAD_FLAG 0x4000
|
|
__u16 vid_mode;
|
|
__u16 root_dev;
|
|
__u16 boot_flag;
|
|
__u16 jump;
|
|
__u32 header;
|
|
__u16 version;
|
|
__u32 realmode_swtch;
|
|
__u16 start_sys;
|
|
__u16 kernel_version;
|
|
__u8 type_of_loader;
|
|
__u8 loadflags;
|
|
#define LOADED_HIGH (1<<0)
|
|
#define KEEP_SEGMENTS (1<<6)
|
|
#define CAN_USE_HEAP (1<<7)
|
|
__u16 setup_move_size;
|
|
__u32 code32_start;
|
|
__u32 ramdisk_image;
|
|
__u32 ramdisk_size;
|
|
__u32 bootsect_kludge;
|
|
__u16 heap_end_ptr;
|
|
__u16 _pad1;
|
|
__u32 cmd_line_ptr;
|
|
__u32 initrd_addr_max;
|
|
__u32 kernel_alignment;
|
|
__u8 relocatable_kernel;
|
|
__u8 _pad2[3];
|
|
__u32 cmdline_size;
|
|
__u32 hardware_subarch;
|
|
__u64 hardware_subarch_data;
|
|
} __attribute__((packed));
|
|
|
|
struct sys_desc_table {
|
|
__u16 length;
|
|
__u8 table[14];
|
|
};
|
|
|
|
struct efi_info {
|
|
__u32 efi_loader_signature;
|
|
__u32 efi_systab;
|
|
__u32 efi_memdesc_size;
|
|
__u32 efi_memdesc_version;
|
|
__u32 efi_memmap;
|
|
__u32 efi_memmap_size;
|
|
__u32 efi_systab_hi;
|
|
__u32 efi_memmap_hi;
|
|
};
|
|
|
|
/* The so-called "zeropage" */
|
|
struct boot_params {
|
|
struct screen_info screen_info; /* 0x000 */
|
|
struct apm_bios_info apm_bios_info; /* 0x040 */
|
|
__u8 _pad2[12]; /* 0x054 */
|
|
struct ist_info ist_info; /* 0x060 */
|
|
__u8 _pad3[16]; /* 0x070 */
|
|
__u8 hd0_info[16]; /* obsolete! */ /* 0x080 */
|
|
__u8 hd1_info[16]; /* obsolete! */ /* 0x090 */
|
|
struct sys_desc_table sys_desc_table; /* 0x0a0 */
|
|
__u8 _pad4[144]; /* 0x0b0 */
|
|
struct edid_info edid_info; /* 0x140 */
|
|
struct efi_info efi_info; /* 0x1c0 */
|
|
__u32 alt_mem_k; /* 0x1e0 */
|
|
__u32 scratch; /* Scratch field! */ /* 0x1e4 */
|
|
__u8 e820_entries; /* 0x1e8 */
|
|
__u8 eddbuf_entries; /* 0x1e9 */
|
|
__u8 edd_mbr_sig_buf_entries; /* 0x1ea */
|
|
__u8 _pad6[6]; /* 0x1eb */
|
|
struct setup_header hdr; /* setup header */ /* 0x1f1 */
|
|
__u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)];
|
|
__u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */
|
|
struct e820entry e820_map[E820MAX]; /* 0x2d0 */
|
|
__u8 _pad8[48]; /* 0xcd0 */
|
|
struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */
|
|
__u8 _pad9[276]; /* 0xeec */
|
|
} __attribute__((packed));
|
|
|
|
#endif /* _ASM_BOOTPARAM_H */
|