1 files changed, 87 insertions, 0 deletions
diff --git a/src/boot/efi/linux.h b/src/boot/efi/linux.h
new file mode 100644
index 0000000..b92c27c
--- /dev/null
+++ b/src/boot/efi/linux.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#define SETUP_MAGIC             0x53726448      /* "HdrS" */
+
+struct setup_header {
+        UINT8  setup_sects;
+        UINT16 root_flags;
+        UINT32 syssize;
+        UINT16 ram_size;
+        UINT16 vid_mode;
+        UINT16 root_dev;
+        UINT16 boot_flag;
+        UINT16 jump;
+        UINT32 header;
+        UINT16 version;
+        UINT32 realmode_swtch;
+        UINT16 start_sys_seg;
+        UINT16 kernel_version;
+        UINT8  type_of_loader;
+        UINT8  loadflags;
+        UINT16 setup_move_size;
+        UINT32 code32_start;
+        UINT32 ramdisk_image;
+        UINT32 ramdisk_size;
+        UINT32 bootsect_kludge;
+        UINT16 heap_end_ptr;
+        UINT8  ext_loader_ver;
+        UINT8  ext_loader_type;
+        UINT32 cmd_line_ptr;
+        UINT32 initrd_addr_max;
+        UINT32 kernel_alignment;
+        UINT8  relocatable_kernel;
+        UINT8  min_alignment;
+        UINT16 xloadflags;
+        UINT32 cmdline_size;
+        UINT32 hardware_subarch;
+        UINT64 hardware_subarch_data;
+        UINT32 payload_offset;
+        UINT32 payload_length;
+        UINT64 setup_data;
+        UINT64 pref_address;
+        UINT32 init_size;
+        UINT32 handover_offset;
+} __attribute__((packed));
+
+/* adapted from linux' bootparam.h */
+struct boot_params {
+        UINT8  screen_info[64];         // was: struct screen_info
+        UINT8  apm_bios_info[20];       // was: struct apm_bios_info
+        UINT8  _pad2[4];
+        UINT64 tboot_addr;
+        UINT8  ist_info[16];            // was: struct ist_info
+        UINT8  _pad3[16];
+        UINT8  hd0_info[16];
+        UINT8  hd1_info[16];
+        UINT8  sys_desc_table[16];      // was: struct sys_desc_table
+        UINT8  olpc_ofw_header[16];     // was: struct olpc_ofw_header
+        UINT32 ext_ramdisk_image;
+        UINT32 ext_ramdisk_size;
+        UINT32 ext_cmd_line_ptr;
+        UINT8  _pad4[116];
+        UINT8  edid_info[128];          // was: struct edid_info
+        UINT8  efi_info[32];            // was: struct efi_info
+        UINT32 alt_mem_k;
+        UINT32 scratch;
+        UINT8  e820_entries;
+        UINT8  eddbuf_entries;
+        UINT8  edd_mbr_sig_buf_entries;
+        UINT8  kbd_status;
+        UINT8  secure_boot;
+        UINT8  _pad5[2];
+        UINT8  sentinel;
+        UINT8  _pad6[1];
+        struct setup_header hdr;
+        UINT8  _pad7[0x290-0x1f1-sizeof(struct setup_header)];
+        UINT32 edd_mbr_sig_buffer[16];  // was: edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]
+        UINT8  e820_table[20*128];      // was: struct boot_e820_entry e820_table[E820_MAX_ENTRIES_ZEROPAGE]
+        UINT8  _pad8[48];
+        UINT8  eddbuf[6*82];            // was: struct edd_info eddbuf[EDDMAXNR]
+        UINT8  _pad9[276];
+} __attribute__((packed));
+
+EFI_STATUS linux_exec(EFI_HANDLE *image,
+                      CHAR8 *cmdline, UINTN cmdline_size,
+                      UINTN linux_addr,
+                      UINTN initrd_addr, UINTN initrd_size);