diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/arm/linux.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/arm/linux.c
new file mode 100644
index 00000000..51684914
--- /dev/null
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/arm/linux.c
@@ -0,0 +1,509 @@
+/* linux.c - boot Linux */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see .
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_dl_t my_mod;
+
+static grub_addr_t initrd_start;
+static grub_addr_t initrd_end;
+
+static grub_addr_t linux_addr;
+static grub_size_t linux_size;
+
+static char *linux_args;
+
+static grub_uint32_t machine_type;
+static const void *current_fdt;
+
+typedef void (*kernel_entry_t) (int, unsigned long, void *);
+
+#define LINUX_PHYS_OFFSET (0x00008000)
+#define LINUX_INITRD_PHYS_OFFSET (LINUX_PHYS_OFFSET + 0x03000000)
+#define LINUX_FDT_PHYS_OFFSET (LINUX_INITRD_PHYS_OFFSET - 0x10000)
+
+static grub_size_t
+get_atag_size (const grub_uint32_t *atag)
+{
+ const grub_uint32_t *atag0 = atag;
+ while (atag[0] && atag[1])
+ atag += atag[0];
+ return atag - atag0;
+}
+
+/*
+ * linux_prepare_fdt():
+ * Prepares a loaded FDT for being passed to Linux.
+ * Merges in command line parameters and sets up initrd addresses.
+ */
+static grub_err_t
+linux_prepare_atag (void *target_atag)
+{
+ const grub_uint32_t *atag_orig = (const grub_uint32_t *) current_fdt;
+ grub_uint32_t *tmp_atag, *to;
+ const grub_uint32_t *from;
+ grub_size_t tmp_size;
+ grub_size_t arg_size = grub_strlen (linux_args);
+ char *cmdline_orig = NULL;
+ grub_size_t cmdline_orig_len = 0;
+
+ /* some place for cmdline, initrd and terminator. */
+ tmp_size = get_atag_size (atag_orig) + 20 + (arg_size) / 4;
+ tmp_atag = grub_malloc (tmp_size * sizeof (grub_uint32_t));
+ if (!tmp_atag)
+ return grub_errno;
+
+ for (from = atag_orig, to = tmp_atag; from[0] && from[1];
+ from += from[0])
+ switch (from[1])
+ {
+ case 0x54410004:
+ case 0x54410005:
+ case 0x54420005:
+ break;
+ case 0x54410009:
+ if (*(char *) (from + 2))
+ {
+ cmdline_orig = (char *) (from + 2);
+ cmdline_orig_len = grub_strlen (cmdline_orig) + 1;
+ }
+ break;
+ default:
+ grub_memcpy (to, from, sizeof (grub_uint32_t) * from[0]);
+ to += from[0];
+ break;
+ }
+
+ grub_dprintf ("linux", "linux inherited args: '%s'\n",
+ cmdline_orig ? : "");
+ grub_dprintf ("linux", "linux_args: '%s'\n", linux_args);
+
+ /* Generate and set command line */
+ to[0] = 3 + (arg_size + cmdline_orig_len) / 4;
+ to[1] = 0x54410009;
+ if (cmdline_orig)
+ {
+ grub_memcpy ((char *) to + 8, cmdline_orig, cmdline_orig_len - 1);
+ *((char *) to + 8 + cmdline_orig_len - 1) = ' ';
+ }
+ grub_memcpy ((char *) to + 8 + cmdline_orig_len, linux_args, arg_size);
+ grub_memset ((char *) to + 8 + cmdline_orig_len + arg_size, 0,
+ 4 - ((arg_size + cmdline_orig_len) & 3));
+ to += to[0];
+
+ if (initrd_start && initrd_end)
+ {
+ /*
+ * We're using physical addresses, so even if we have LPAE, we're
+ * restricted to a 32-bit address space.
+ */
+ grub_dprintf ("loader", "Initrd @ 0x%08x-0x%08x\n",
+ initrd_start, initrd_end);
+
+ to[0] = 4;
+ to[1] = 0x54420005;
+ to[2] = initrd_start;
+ to[3] = initrd_end - initrd_start;
+ to += 4;
+ }
+
+ to[0] = 0;
+ to[1] = 0;
+ to += 2;
+
+ /* Copy updated FDT to its launch location */
+ grub_memcpy (target_atag, tmp_atag, sizeof (grub_uint32_t) * (to - tmp_atag));
+ grub_free (tmp_atag);
+
+ grub_dprintf ("loader", "ATAG updated for Linux boot\n");
+
+ return GRUB_ERR_NONE;
+}
+
+/*
+ * linux_prepare_fdt():
+ * Prepares a loaded FDT for being passed to Linux.
+ * Merges in command line parameters and sets up initrd addresses.
+ */
+static grub_err_t
+linux_prepare_fdt (void *target_fdt)
+{
+ int node;
+ int retval;
+ int tmp_size;
+ void *tmp_fdt;
+
+ tmp_size = grub_fdt_get_totalsize (current_fdt) + 0x100 + grub_strlen (linux_args);
+ tmp_fdt = grub_malloc (tmp_size);
+ if (!tmp_fdt)
+ return grub_errno;
+
+ grub_memcpy (tmp_fdt, current_fdt, grub_fdt_get_totalsize (current_fdt));
+ grub_fdt_set_totalsize (tmp_fdt, tmp_size);
+
+ /* Find or create '/chosen' node */
+ node = grub_fdt_find_subnode (tmp_fdt, 0, "chosen");
+ if (node < 0)
+ {
+ grub_dprintf ("linux", "No 'chosen' node in FDT - creating.\n");
+ node = grub_fdt_add_subnode (tmp_fdt, 0, "chosen");
+ if (node < 0)
+ goto failure;
+ }
+
+ grub_dprintf ("linux", "linux_args: '%s'\n", linux_args);
+
+ /* Generate and set command line */
+ retval = grub_fdt_set_prop (tmp_fdt, node, "bootargs", linux_args,
+ grub_strlen (linux_args) + 1);
+ if (retval)
+ goto failure;
+
+ if (initrd_start && initrd_end)
+ {
+ /*
+ * We're using physical addresses, so even if we have LPAE, we're
+ * restricted to a 32-bit address space.
+ */
+ grub_dprintf ("loader", "Initrd @ 0x%08x-0x%08x\n",
+ initrd_start, initrd_end);
+
+ retval = grub_fdt_set_prop32 (tmp_fdt, node, "linux,initrd-start",
+ initrd_start);
+ if (retval)
+ goto failure;
+ retval = grub_fdt_set_prop32 (tmp_fdt, node, "linux,initrd-end",
+ initrd_end);
+ if (retval)
+ goto failure;
+ }
+
+ /* Copy updated FDT to its launch location */
+ grub_memcpy (target_fdt, tmp_fdt, tmp_size);
+ grub_free (tmp_fdt);
+
+ grub_dprintf ("loader", "FDT updated for Linux boot\n");
+
+ return GRUB_ERR_NONE;
+
+failure:
+ grub_free (tmp_fdt);
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "unable to prepare FDT");
+}
+
+static grub_err_t
+linux_boot (void)
+{
+ kernel_entry_t linuxmain;
+ int fdt_valid, atag_valid;
+ void *target_fdt = 0;
+
+ fdt_valid = (current_fdt && grub_fdt_check_header_nosize (current_fdt) == 0);
+ atag_valid = ((((const grub_uint16_t *) current_fdt)[3] & ~3) == 0x5440
+ && *((const grub_uint32_t *) current_fdt));
+ grub_dprintf ("loader", "atag: %p, %x, %x, %s, %s\n",
+ current_fdt,
+ ((const grub_uint16_t *) current_fdt)[3],
+ *((const grub_uint32_t *) current_fdt),
+ (const char *) current_fdt,
+ (const char *) current_fdt + 1);
+
+ if (!fdt_valid && machine_type == GRUB_ARM_MACHINE_TYPE_FDT)
+ return grub_error (GRUB_ERR_FILE_NOT_FOUND,
+ N_("device tree must be supplied (see `devicetree' command)"));
+
+ grub_arch_sync_caches ((void *) linux_addr, linux_size);
+
+ grub_dprintf ("loader", "Kernel at: 0x%x\n", linux_addr);
+
+ if (fdt_valid || atag_valid)
+ {
+#ifdef GRUB_MACHINE_EFI
+ grub_size_t size;
+ if (fdt_valid)
+ size = grub_fdt_get_totalsize (current_fdt);
+ else
+ size = 4 * get_atag_size (current_fdt);
+ size += grub_strlen (linux_args) + 256;
+ target_fdt = grub_efi_allocate_loader_memory (LINUX_FDT_PHYS_OFFSET, size);
+ if (!target_fdt)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
+#else
+ target_fdt = (void *) LINUX_FDT_ADDRESS;
+#endif
+ }
+
+ if (fdt_valid)
+ {
+ grub_err_t err;
+
+ err = linux_prepare_fdt (target_fdt);
+ if (err)
+ return err;
+ grub_dprintf ("loader", "FDT @ %p\n", target_fdt);
+ }
+ else if (atag_valid)
+ {
+ grub_err_t err;
+
+ err = linux_prepare_atag (target_fdt);
+ if (err)
+ return err;
+ grub_dprintf ("loader", "ATAG @ %p\n", target_fdt);
+ }
+
+ grub_dprintf ("loader", "Jumping to Linux...\n");
+
+ /* Boot the kernel.
+ * Arguments to kernel:
+ * r0 - 0
+ * r1 - machine type
+ * r2 - address of DTB
+ */
+ linuxmain = (kernel_entry_t) linux_addr;
+
+ grub_arm_disable_caches_mmu ();
+
+ linuxmain (0, machine_type, target_fdt);
+
+ return grub_error (GRUB_ERR_BAD_OS, "Linux call returned");
+}
+
+/*
+ * Only support zImage, so no relocations necessary
+ */
+static grub_err_t
+linux_load (const char *filename, grub_file_t file)
+{
+ struct linux_arm_kernel_header *lh;
+ int size;
+
+ size = grub_file_size (file);
+
+ linux_addr = LINUX_ADDRESS;
+ grub_dprintf ("loader", "Loading Linux to 0x%08x\n",
+ (grub_addr_t) linux_addr);
+
+ if (grub_file_read (file, (void *) linux_addr, size) != size)
+ {
+ if (!grub_errno)
+ grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
+ filename);
+ return grub_errno;
+ }
+
+ lh = (void *) linux_addr;
+
+ if ((grub_size_t) size > sizeof (*lh) &&
+ lh->magic == GRUB_LINUX_ARM_MAGIC_SIGNATURE)
+ ;
+ else if (size > 0x8000 && *(grub_uint32_t *) (linux_addr) == 0xea000006
+ && machine_type == GRUB_ARM_MACHINE_TYPE_RASPBERRY_PI)
+ grub_memmove ((void *) linux_addr, (void *) (linux_addr + 0x8000),
+ size - 0x8000);
+ else
+ return grub_error (GRUB_ERR_BAD_FILE_TYPE, N_("invalid zImage"));
+
+ linux_size = size;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+linux_unload (void)
+{
+ grub_dl_unref (my_mod);
+
+ grub_free (linux_args);
+ linux_args = NULL;
+
+ initrd_start = initrd_end = 0;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ int size;
+ grub_err_t err;
+ grub_file_t file;
+ grub_dl_ref (my_mod);
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ file = grub_file_open (argv[0], GRUB_FILE_TYPE_LINUX_KERNEL);
+ if (!file)
+ goto fail;
+
+ err = linux_load (argv[0], file);
+ grub_file_close (file);
+ if (err)
+ goto fail;
+
+ grub_loader_set (linux_boot, linux_unload, 0);
+
+ size = grub_loader_cmdline_size (argc, argv);
+ linux_args = grub_malloc (size + sizeof (LINUX_IMAGE));
+ if (!linux_args)
+ {
+ grub_loader_unset();
+ goto fail;
+ }
+
+ /* Create kernel command line. */
+ grub_memcpy (linux_args, LINUX_IMAGE, sizeof (LINUX_IMAGE));
+ err = grub_create_loader_cmdline (argc, argv,
+ linux_args + sizeof (LINUX_IMAGE) - 1, size,
+ GRUB_VERIFY_KERNEL_CMDLINE);
+ if (err)
+ goto fail;
+
+ return GRUB_ERR_NONE;
+
+fail:
+ grub_dl_unref (my_mod);
+ return grub_errno;
+}
+
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_file_t file;
+ grub_size_t size = 0;
+ struct grub_linux_initrd_context initrd_ctx = { 0, 0, 0 };
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ file = grub_file_open (argv[0], GRUB_FILE_TYPE_LINUX_INITRD);
+ if (!file)
+ return grub_errno;
+
+ if (grub_initrd_init (argc, argv, &initrd_ctx))
+ goto fail;
+
+ size = grub_get_initrd_size (&initrd_ctx);
+
+ initrd_start = LINUX_INITRD_ADDRESS;
+
+ grub_dprintf ("loader", "Loading initrd to 0x%08x\n",
+ (grub_addr_t) initrd_start);
+
+ if (grub_initrd_load (&initrd_ctx, argv, (void *) initrd_start))
+ goto fail;
+
+ initrd_end = initrd_start + size;
+
+ return GRUB_ERR_NONE;
+
+fail:
+ grub_file_close (file);
+
+ return grub_errno;
+}
+
+static grub_err_t
+load_dtb (grub_file_t dtb, int size)
+{
+ void *new_fdt = grub_zalloc (size);
+ if (!new_fdt)
+ return grub_errno;
+ grub_dprintf ("loader", "Loading device tree to %p\n",
+ new_fdt);
+ if ((grub_file_read (dtb, new_fdt, size) != size)
+ || (grub_fdt_check_header (new_fdt, size) != 0))
+ {
+ grub_free (new_fdt);
+ return grub_error (GRUB_ERR_BAD_OS, N_("invalid device tree"));
+ }
+
+ grub_fdt_set_totalsize (new_fdt, size);
+ current_fdt = new_fdt;
+ /*
+ * We've successfully loaded an FDT, so any machine type passed
+ * from firmware is now obsolete.
+ */
+ machine_type = GRUB_ARM_MACHINE_TYPE_FDT;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_devicetree (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_file_t dtb;
+ int size;
+
+ if (argc != 1)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ dtb = grub_file_open (argv[0], GRUB_FILE_TYPE_DEVICE_TREE_IMAGE);
+ if (!dtb)
+ return grub_errno;
+
+ size = grub_file_size (dtb);
+ if (size == 0)
+ grub_error (GRUB_ERR_BAD_OS, "empty file");
+ else
+ load_dtb (dtb, size);
+ grub_file_close (dtb);
+
+ return grub_errno;
+}
+
+static grub_command_t cmd_linux, cmd_initrd, cmd_devicetree;
+
+GRUB_MOD_INIT (linux)
+{
+ cmd_linux = grub_register_command ("linux", grub_cmd_linux,
+ 0, N_("Load Linux."));
+ cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd,
+ 0, N_("Load initrd."));
+ cmd_devicetree = grub_register_command ("devicetree", grub_cmd_devicetree,
+ /* TRANSLATORS: DTB stands for device tree blob. */
+ 0, N_("Load DTB file."));
+ my_mod = mod;
+ current_fdt = (const void *) grub_arm_firmware_get_boot_data ();
+ machine_type = grub_arm_firmware_get_machine_type ();
+}
+
+GRUB_MOD_FINI (linux)
+{
+ grub_unregister_command (cmd_linux);
+ grub_unregister_command (cmd_initrd);
+ grub_unregister_command (cmd_devicetree);
+}
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/pc/linux.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/pc/linux.c
new file mode 100644
index 00000000..47ea2945
--- /dev/null
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/pc/linux.c
@@ -0,0 +1,490 @@
+/* linux.c - boot Linux zImage or bzImage */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2007,2008,2009,2010 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see .
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define GRUB_LINUX_CL_OFFSET 0x9000
+
+static grub_dl_t my_mod;
+
+static grub_size_t linux_mem_size;
+static int loaded;
+static struct grub_relocator *relocator = NULL;
+static grub_addr_t grub_linux_real_target;
+static char *grub_linux_real_chunk;
+static grub_size_t grub_linux16_prot_size;
+static grub_size_t maximal_cmdline_size;
+
+static grub_err_t
+grub_linux16_boot (void)
+{
+ grub_uint16_t segment;
+ struct grub_relocator16_state state;
+
+ segment = grub_linux_real_target >> 4;
+ state.gs = state.fs = state.es = state.ds = state.ss = segment;
+ state.sp = GRUB_LINUX_SETUP_STACK;
+ state.cs = segment + 0x20;
+ state.ip = 0;
+ state.a20 = 1;
+
+ grub_video_set_mode ("text", 0, 0);
+
+ grub_stop_floppy ();
+
+ return grub_relocator16_boot (relocator, state);
+}
+
+static grub_err_t
+grub_linux_unload (void)
+{
+ grub_dl_unref (my_mod);
+ loaded = 0;
+ grub_relocator_unload (relocator);
+ relocator = NULL;
+ return GRUB_ERR_NONE;
+}
+
+static int
+target_hook (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
+ void *data)
+{
+ grub_uint64_t *result = data;
+ grub_uint64_t candidate;
+
+ if (type != GRUB_MEMORY_AVAILABLE)
+ return 0;
+ if (addr >= 0xa0000)
+ return 0;
+ if (addr + size >= 0xa0000)
+ size = 0xa0000 - addr;
+
+ /* Put the real mode part at as a high location as possible. */
+ candidate = addr + size - (GRUB_LINUX_CL_OFFSET + maximal_cmdline_size);
+ /* But it must not exceed the traditional area. */
+ if (candidate > GRUB_LINUX_OLD_REAL_MODE_ADDR)
+ candidate = GRUB_LINUX_OLD_REAL_MODE_ADDR;
+ if (candidate < addr)
+ return 0;
+
+ if (candidate > *result || *result == (grub_uint64_t) -1)
+ *result = candidate;
+ return 0;
+}
+
+static grub_addr_t
+grub_find_real_target (void)
+{
+ grub_uint64_t result = (grub_uint64_t) -1;
+
+ grub_mmap_iterate (target_hook, &result);
+ return result;
+}
+
+static grub_err_t
+grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_file_t file = 0;
+ struct linux_i386_kernel_header lh;
+ grub_uint8_t setup_sects;
+ grub_size_t real_size;
+ grub_ssize_t len;
+ int i;
+ char *grub_linux_prot_chunk;
+ int grub_linux_is_bzimage;
+ grub_addr_t grub_linux_prot_target;
+ grub_err_t err;
+
+ grub_dl_ref (my_mod);
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto fail;
+ }
+
+ file = grub_file_open (argv[0], GRUB_FILE_TYPE_LINUX_KERNEL);
+ if (! file)
+ goto fail;
+
+ if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh))
+ {
+ if (!grub_errno)
+ grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
+ argv[0]);
+ goto fail;
+ }
+
+ if (lh.boot_flag != grub_cpu_to_le16_compile_time (0xaa55))
+ {
+ grub_error (GRUB_ERR_BAD_OS, "invalid magic number");
+ goto fail;
+ }
+
+ if (lh.setup_sects > GRUB_LINUX_MAX_SETUP_SECTS)
+ {
+ grub_error (GRUB_ERR_BAD_OS, "too many setup sectors");
+ goto fail;
+ }
+
+ grub_linux_is_bzimage = 0;
+ setup_sects = lh.setup_sects;
+ linux_mem_size = 0;
+
+ maximal_cmdline_size = 256;
+
+ if (lh.header == grub_cpu_to_le32_compile_time (GRUB_LINUX_I386_MAGIC_SIGNATURE)
+ && grub_le_to_cpu16 (lh.version) >= 0x0200)
+ {
+ grub_linux_is_bzimage = (lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL);
+ lh.type_of_loader = GRUB_LINUX_BOOT_LOADER_TYPE;
+
+ if (grub_le_to_cpu16 (lh.version) >= 0x0206)
+ maximal_cmdline_size = grub_le_to_cpu32 (lh.cmdline_size) + 1;
+
+ grub_linux_real_target = grub_find_real_target ();
+ if (grub_linux_real_target == (grub_addr_t)-1)
+ {
+ grub_error (GRUB_ERR_OUT_OF_RANGE,
+ "no appropriate low memory found");
+ goto fail;
+ }
+
+ if (grub_le_to_cpu16 (lh.version) >= 0x0201)
+ {
+ lh.heap_end_ptr = grub_cpu_to_le16_compile_time (GRUB_LINUX_HEAP_END_OFFSET);
+ lh.loadflags |= GRUB_LINUX_FLAG_CAN_USE_HEAP;
+ }
+
+ if (grub_le_to_cpu16 (lh.version) >= 0x0202)
+ lh.cmd_line_ptr = grub_linux_real_target + GRUB_LINUX_CL_OFFSET;
+ else
+ {
+ lh.cl_magic = grub_cpu_to_le16_compile_time (GRUB_LINUX_CL_MAGIC);
+ lh.cl_offset = grub_cpu_to_le16_compile_time (GRUB_LINUX_CL_OFFSET);
+ lh.setup_move_size = grub_cpu_to_le16_compile_time (GRUB_LINUX_CL_OFFSET
+ + maximal_cmdline_size);
+ }
+ }
+ else
+ {
+ /* Your kernel is quite old... */
+ lh.cl_magic = grub_cpu_to_le16_compile_time (GRUB_LINUX_CL_MAGIC);
+ lh.cl_offset = grub_cpu_to_le16_compile_time (GRUB_LINUX_CL_OFFSET);
+
+ setup_sects = GRUB_LINUX_DEFAULT_SETUP_SECTS;
+
+ grub_linux_real_target = GRUB_LINUX_OLD_REAL_MODE_ADDR;
+ }
+
+ /* If SETUP_SECTS is not set, set it to the default (4). */
+ if (! setup_sects)
+ setup_sects = GRUB_LINUX_DEFAULT_SETUP_SECTS;
+
+ real_size = setup_sects << GRUB_DISK_SECTOR_BITS;
+ grub_linux16_prot_size = grub_file_size (file)
+ - real_size - GRUB_DISK_SECTOR_SIZE;
+
+ if (! grub_linux_is_bzimage
+ && GRUB_LINUX_ZIMAGE_ADDR + grub_linux16_prot_size
+ > grub_linux_real_target)
+ {
+ grub_error (GRUB_ERR_BAD_OS, "too big zImage (0x%x > 0x%x), use bzImage instead",
+ (char *) GRUB_LINUX_ZIMAGE_ADDR + grub_linux16_prot_size,
+ (grub_size_t) grub_linux_real_target);
+ goto fail;
+ }
+
+ grub_dprintf ("linux", "[Linux-%s, setup=0x%x, size=0x%x]\n",
+ grub_linux_is_bzimage ? "bzImage" : "zImage",
+ (unsigned) real_size,
+ (unsigned) grub_linux16_prot_size);
+
+ for (i = 1; i < argc; i++)
+ if (grub_memcmp (argv[i], "vga=", 4) == 0)
+ {
+ /* Video mode selection support. */
+ grub_uint16_t vid_mode;
+ char *val = argv[i] + 4;
+
+ if (grub_strcmp (val, "normal") == 0)
+ vid_mode = GRUB_LINUX_VID_MODE_NORMAL;
+ else if (grub_strcmp (val, "ext") == 0)
+ vid_mode = GRUB_LINUX_VID_MODE_EXTENDED;
+ else if (grub_strcmp (val, "ask") == 0)
+ vid_mode = GRUB_LINUX_VID_MODE_ASK;
+ else
+ vid_mode = (grub_uint16_t) grub_strtoul (val, 0, 0);
+
+ if (grub_errno)
+ goto fail;
+
+ lh.vid_mode = grub_cpu_to_le16 (vid_mode);
+ }
+ else if (grub_memcmp (argv[i], "mem=", 4) == 0)
+ {
+ char *val = argv[i] + 4;
+
+ linux_mem_size = grub_strtoul (val, &val, 0);
+
+ if (grub_errno)
+ {
+ grub_errno = GRUB_ERR_NONE;
+ linux_mem_size = 0;
+ }
+ else
+ {
+ int shift = 0;
+
+ switch (grub_tolower (val[0]))
+ {
+ case 'g':
+ shift += 10;
+ /* Fallthrough. */
+ case 'm':
+ shift += 10;
+ /* Fallthrough. */
+ case 'k':
+ shift += 10;
+ /* Fallthrough. */
+ default:
+ break;
+ }
+
+ /* Check an overflow. */
+ if (linux_mem_size > (~0UL >> shift))
+ linux_mem_size = 0;
+ else
+ linux_mem_size <<= shift;
+ }
+ }
+
+ relocator = grub_relocator_new ();
+ if (!relocator)
+ goto fail;
+
+ {
+ grub_relocator_chunk_t ch;
+ err = grub_relocator_alloc_chunk_addr (relocator, &ch,
+ grub_linux_real_target,
+ GRUB_LINUX_CL_OFFSET
+ + maximal_cmdline_size);
+ if (err)
+ return err;
+ grub_linux_real_chunk = get_virtual_current_address (ch);
+ }
+
+ /* Put the real mode code at the temporary address. */
+ grub_memmove (grub_linux_real_chunk, &lh, sizeof (lh));
+
+ len = real_size + GRUB_DISK_SECTOR_SIZE - sizeof (lh);
+ if (grub_file_read (file, grub_linux_real_chunk + sizeof (lh), len) != len)
+ {
+ if (!grub_errno)
+ grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
+ argv[0]);
+ goto fail;
+ }
+
+ if (lh.header != grub_cpu_to_le32_compile_time (GRUB_LINUX_I386_MAGIC_SIGNATURE)
+ || grub_le_to_cpu16 (lh.version) < 0x0200)
+ /* Clear the heap space. */
+ grub_memset (grub_linux_real_chunk
+ + ((setup_sects + 1) << GRUB_DISK_SECTOR_BITS),
+ 0,
+ ((GRUB_LINUX_MAX_SETUP_SECTS - setup_sects - 1)
+ << GRUB_DISK_SECTOR_BITS));
+
+ /* Create kernel command line. */
+ grub_memcpy ((char *)grub_linux_real_chunk + GRUB_LINUX_CL_OFFSET,
+ LINUX_IMAGE, sizeof (LINUX_IMAGE));
+ err = grub_create_loader_cmdline (argc, argv,
+ (char *)grub_linux_real_chunk
+ + GRUB_LINUX_CL_OFFSET + sizeof (LINUX_IMAGE) - 1,
+ maximal_cmdline_size
+ - (sizeof (LINUX_IMAGE) - 1),
+ GRUB_VERIFY_KERNEL_CMDLINE);
+ if (err)
+ goto fail;
+
+ if (grub_linux_is_bzimage)
+ grub_linux_prot_target = GRUB_LINUX_BZIMAGE_ADDR;
+ else
+ grub_linux_prot_target = GRUB_LINUX_ZIMAGE_ADDR;
+ {
+ grub_relocator_chunk_t ch;
+ err = grub_relocator_alloc_chunk_addr (relocator, &ch,
+ grub_linux_prot_target,
+ grub_linux16_prot_size);
+ if (err)
+ return err;
+ grub_linux_prot_chunk = get_virtual_current_address (ch);
+ }
+
+ len = grub_linux16_prot_size;
+ if (grub_file_read (file, grub_linux_prot_chunk, len) != len && !grub_errno)
+ grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
+ argv[0]);
+
+ if (grub_errno == GRUB_ERR_NONE)
+ {
+ grub_loader_set (grub_linux16_boot, grub_linux_unload, 0);
+ loaded = 1;
+ }
+
+ fail:
+
+ if (file)
+ grub_file_close (file);
+
+ if (grub_errno != GRUB_ERR_NONE)
+ {
+ grub_dl_unref (my_mod);
+ loaded = 0;
+ grub_relocator_unload (relocator);
+ }
+
+ return grub_errno;
+}
+
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_size_t size = 0;
+ grub_addr_t addr_max, addr_min;
+ struct linux_i386_kernel_header *lh;
+ grub_uint8_t *initrd_chunk;
+ grub_addr_t initrd_addr;
+ grub_err_t err;
+ struct grub_linux_initrd_context initrd_ctx = { 0, 0, 0 };
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto fail;
+ }
+
+ if (!loaded)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("you need to load the kernel first"));
+ goto fail;
+ }
+
+ lh = (struct linux_i386_kernel_header *) grub_linux_real_chunk;
+
+ if (!(lh->header == grub_cpu_to_le32_compile_time (GRUB_LINUX_I386_MAGIC_SIGNATURE)
+ && grub_le_to_cpu16 (lh->version) >= 0x0200))
+ {
+ grub_error (GRUB_ERR_BAD_OS, "the kernel is too old for initrd");
+ goto fail;
+ }
+
+ /* Get the highest address available for the initrd. */
+ if (grub_le_to_cpu16 (lh->version) >= 0x0203)
+ {
+ addr_max = grub_cpu_to_le32 (lh->initrd_addr_max);
+
+ /* XXX in reality, Linux specifies a bogus value, so
+ it is necessary to make sure that ADDR_MAX does not exceed
+ 0x3fffffff. */
+ if (addr_max > GRUB_LINUX_INITRD_MAX_ADDRESS)
+ addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS;
+ }
+ else
+ addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS;
+
+ if (linux_mem_size != 0 && linux_mem_size < addr_max)
+ addr_max = linux_mem_size;
+
+ /* Linux 2.3.xx has a bug in the memory range check, so avoid
+ the last page.
+ Linux 2.2.xx has a bug in the memory range check, which is
+ worse than that of Linux 2.3.xx, so avoid the last 64kb. */
+ addr_max -= 0x10000;
+
+ addr_min = GRUB_LINUX_BZIMAGE_ADDR + grub_linux16_prot_size;
+
+ if (grub_initrd_init (argc, argv, &initrd_ctx))
+ goto fail;
+
+ size = grub_get_initrd_size (&initrd_ctx);
+
+ {
+ grub_relocator_chunk_t ch;
+ err = grub_relocator_alloc_chunk_align (relocator, &ch,
+ addr_min, addr_max - size,
+ size, 0x1000,
+ GRUB_RELOCATOR_PREFERENCE_HIGH, 0);
+ if (err)
+ return err;
+ initrd_chunk = get_virtual_current_address (ch);
+ initrd_addr = get_physical_target_address (ch);
+ }
+
+ if (grub_initrd_load (&initrd_ctx, argv, initrd_chunk))
+ goto fail;
+
+ lh->ramdisk_image = initrd_addr;
+ lh->ramdisk_size = size;
+
+ fail:
+ grub_initrd_close (&initrd_ctx);
+
+ return grub_errno;
+}
+
+static grub_command_t cmd_linux, cmd_initrd;
+
+GRUB_MOD_INIT(linux16)
+{
+ cmd_linux =
+ grub_register_command ("linux16", grub_cmd_linux,
+ 0, N_("Load Linux."));
+ cmd_initrd =
+ grub_register_command ("initrd16", grub_cmd_initrd,
+ 0, N_("Load initrd."));
+ my_mod = mod;
+}
+
+GRUB_MOD_FINI(linux16)
+{
+ grub_unregister_command (cmd_linux);
+ grub_unregister_command (cmd_initrd);
+}
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/xen.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/xen.c
new file mode 100644
index 00000000..8f662c8a
--- /dev/null
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/xen.c
@@ -0,0 +1,978 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see .
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#ifdef __x86_64__
+#define NUMBER_OF_LEVELS 4
+#define INTERMEDIATE_OR (GRUB_PAGE_PRESENT | GRUB_PAGE_RW | GRUB_PAGE_USER)
+#define VIRT_MASK 0x0000ffffffffffffULL
+#else
+#define NUMBER_OF_LEVELS 3
+#define INTERMEDIATE_OR (GRUB_PAGE_PRESENT | GRUB_PAGE_RW)
+#define VIRT_MASK 0x00000000ffffffffULL
+#define HYPERVISOR_PUD_ADDRESS 0xc0000000ULL
+#endif
+
+struct grub_xen_mapping_lvl {
+ grub_uint64_t virt_start;
+ grub_uint64_t virt_end;
+ grub_uint64_t pfn_start;
+ grub_uint64_t n_pt_pages;
+};
+
+struct grub_xen_mapping {
+ grub_uint64_t *where;
+ struct grub_xen_mapping_lvl area;
+ struct grub_xen_mapping_lvl lvls[NUMBER_OF_LEVELS];
+};
+
+struct xen_loader_state {
+ struct grub_relocator *relocator;
+ struct grub_relocator_xen_state state;
+ struct start_info next_start;
+ struct grub_xen_file_info xen_inf;
+ grub_xen_mfn_t *virt_mfn_list;
+ struct start_info *virt_start_info;
+ grub_xen_mfn_t console_pfn;
+ grub_uint64_t max_addr;
+ grub_uint64_t pgtbl_end;
+ struct xen_multiboot_mod_list *module_info_page;
+ grub_uint64_t modules_target_start;
+ grub_size_t n_modules;
+ struct grub_xen_mapping *map_reloc;
+ struct grub_xen_mapping mappings[XEN_MAX_MAPPINGS];
+ int n_mappings;
+ int loaded;
+};
+
+static struct xen_loader_state xen_state;
+
+static grub_dl_t my_mod;
+
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define MAX_MODULES (PAGE_SIZE / sizeof (struct xen_multiboot_mod_list))
+#define STACK_SIZE 1048576
+#define ADDITIONAL_SIZE (1 << 19)
+#define ALIGN_SIZE (1 << 22)
+#define LOG_POINTERS_PER_PAGE 9
+#define POINTERS_PER_PAGE (1 << LOG_POINTERS_PER_PAGE)
+
+static grub_uint64_t
+page2offset (grub_uint64_t page)
+{
+ return page << PAGE_SHIFT;
+}
+
+static grub_err_t
+get_pgtable_size (grub_uint64_t from, grub_uint64_t to, grub_uint64_t pfn)
+{
+ struct grub_xen_mapping *map, *map_cmp;
+ grub_uint64_t mask, bits;
+ int i, m;
+
+ if (xen_state.n_mappings == XEN_MAX_MAPPINGS)
+ return grub_error (GRUB_ERR_BUG, "too many mapped areas");
+
+ grub_dprintf ("xen", "get_pgtable_size %d from=%llx, to=%llx, pfn=%llx\n",
+ xen_state.n_mappings, (unsigned long long) from,
+ (unsigned long long) to, (unsigned long long) pfn);
+
+ map = xen_state.mappings + xen_state.n_mappings;
+ grub_memset (map, 0, sizeof (*map));
+
+ map->area.virt_start = from & VIRT_MASK;
+ map->area.virt_end = (to - 1) & VIRT_MASK;
+ map->area.n_pt_pages = 0;
+
+ for (i = NUMBER_OF_LEVELS - 1; i >= 0; i--)
+ {
+ map->lvls[i].pfn_start = pfn + map->area.n_pt_pages;
+ if (i == NUMBER_OF_LEVELS - 1)
+ {
+ if (xen_state.n_mappings == 0)
+ {
+ map->lvls[i].virt_start = 0;
+ map->lvls[i].virt_end = VIRT_MASK;
+ map->lvls[i].n_pt_pages = 1;
+ map->area.n_pt_pages++;
+ }
+ continue;
+ }
+
+ bits = PAGE_SHIFT + (i + 1) * LOG_POINTERS_PER_PAGE;
+ mask = (1ULL << bits) - 1;
+ map->lvls[i].virt_start = map->area.virt_start & ~mask;
+ map->lvls[i].virt_end = map->area.virt_end | mask;
+#ifdef __i386__
+ /* PAE wants last root directory present. */
+ if (i == 1 && to <= HYPERVISOR_PUD_ADDRESS && xen_state.n_mappings == 0)
+ map->lvls[i].virt_end = VIRT_MASK;
+#endif
+ for (m = 0; m < xen_state.n_mappings; m++)
+ {
+ map_cmp = xen_state.mappings + m;
+ if (map_cmp->lvls[i].virt_start == map_cmp->lvls[i].virt_end)
+ continue;
+ if (map->lvls[i].virt_start >= map_cmp->lvls[i].virt_start &&
+ map->lvls[i].virt_end <= map_cmp->lvls[i].virt_end)
+ {
+ map->lvls[i].virt_start = 0;
+ map->lvls[i].virt_end = 0;
+ break;
+ }
+ if (map->lvls[i].virt_start >= map_cmp->lvls[i].virt_start &&
+ map->lvls[i].virt_start <= map_cmp->lvls[i].virt_end)
+ map->lvls[i].virt_start = map_cmp->lvls[i].virt_end + 1;
+ if (map->lvls[i].virt_end >= map_cmp->lvls[i].virt_start &&
+ map->lvls[i].virt_end <= map_cmp->lvls[i].virt_end)
+ map->lvls[i].virt_end = map_cmp->lvls[i].virt_start - 1;
+ }
+ if (map->lvls[i].virt_start < map->lvls[i].virt_end)
+ map->lvls[i].n_pt_pages =
+ ((map->lvls[i].virt_end - map->lvls[i].virt_start) >> bits) + 1;
+ map->area.n_pt_pages += map->lvls[i].n_pt_pages;
+ grub_dprintf ("xen", "get_pgtable_size level %d: virt %llx-%llx %d pts\n",
+ i, (unsigned long long) map->lvls[i].virt_start,
+ (unsigned long long) map->lvls[i].virt_end,
+ (int) map->lvls[i].n_pt_pages);
+ }
+
+ grub_dprintf ("xen", "get_pgtable_size return: %d page tables\n",
+ (int) map->area.n_pt_pages);
+
+ xen_state.state.paging_start[xen_state.n_mappings] = pfn;
+ xen_state.state.paging_size[xen_state.n_mappings] = map->area.n_pt_pages;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_uint64_t *
+get_pg_table_virt (int mapping, int level)
+{
+ grub_uint64_t pfn;
+ struct grub_xen_mapping *map;
+
+ map = xen_state.mappings + mapping;
+ pfn = map->lvls[level].pfn_start - map->lvls[NUMBER_OF_LEVELS - 1].pfn_start;
+ return map->where + pfn * POINTERS_PER_PAGE;
+}
+
+static grub_uint64_t
+get_pg_table_prot (int level, grub_uint64_t pfn)
+{
+ int m;
+ grub_uint64_t pfn_s, pfn_e;
+
+ if (level > 0)
+ return INTERMEDIATE_OR;
+ for (m = 0; m < xen_state.n_mappings; m++)
+ {
+ pfn_s = xen_state.mappings[m].lvls[NUMBER_OF_LEVELS - 1].pfn_start;
+ pfn_e = xen_state.mappings[m].area.n_pt_pages + pfn_s;
+ if (pfn >= pfn_s && pfn < pfn_e)
+ return GRUB_PAGE_PRESENT | GRUB_PAGE_USER;
+ }
+ return GRUB_PAGE_PRESENT | GRUB_PAGE_RW | GRUB_PAGE_USER;
+}
+
+static void
+generate_page_table (grub_xen_mfn_t *mfn_list)
+{
+ int l, m1, m2;
+ long p, p_s, p_e;
+ grub_uint64_t start, end, pfn;
+ grub_uint64_t *pg;
+ struct grub_xen_mapping_lvl *lvl;
+
+ for (m1 = 0; m1 < xen_state.n_mappings; m1++)
+ grub_memset (xen_state.mappings[m1].where, 0,
+ xen_state.mappings[m1].area.n_pt_pages * PAGE_SIZE);
+
+ for (l = NUMBER_OF_LEVELS - 1; l >= 0; l--)
+ {
+ for (m1 = 0; m1 < xen_state.n_mappings; m1++)
+ {
+ start = xen_state.mappings[m1].lvls[l].virt_start;
+ end = xen_state.mappings[m1].lvls[l].virt_end;
+ pg = get_pg_table_virt(m1, l);
+ for (m2 = 0; m2 < xen_state.n_mappings; m2++)
+ {
+ lvl = (l > 0) ? xen_state.mappings[m2].lvls + l - 1
+ : &xen_state.mappings[m2].area;
+ if (l > 0 && lvl->n_pt_pages == 0)
+ continue;
+ if (lvl->virt_start >= end || lvl->virt_end <= start)
+ continue;
+ p_s = (grub_max (start, lvl->virt_start) - start) >>
+ (PAGE_SHIFT + l * LOG_POINTERS_PER_PAGE);
+ p_e = (grub_min (end, lvl->virt_end) - start) >>
+ (PAGE_SHIFT + l * LOG_POINTERS_PER_PAGE);
+ pfn = ((grub_max (start, lvl->virt_start) - lvl->virt_start) >>
+ (PAGE_SHIFT + l * LOG_POINTERS_PER_PAGE)) + lvl->pfn_start;
+ grub_dprintf ("xen", "write page table entries level %d pg %p "
+ "mapping %d/%d index %lx-%lx pfn %llx\n",
+ l, pg, m1, m2, p_s, p_e, (unsigned long long) pfn);
+ for (p = p_s; p <= p_e; p++)
+ {
+ pg[p] = page2offset (mfn_list[pfn]) |
+ get_pg_table_prot (l, pfn);
+ pfn++;
+ }
+ }
+ }
+ }
+}
+
+static grub_err_t
+set_mfns (grub_xen_mfn_t pfn)
+{
+ grub_xen_mfn_t i, t;
+ grub_xen_mfn_t cn_pfn = -1, st_pfn = -1;
+ struct mmu_update m2p_updates[4];
+
+
+ for (i = 0; i < grub_xen_start_page_addr->nr_pages; i++)
+ {
+ if (xen_state.virt_mfn_list[i] ==
+ grub_xen_start_page_addr->console.domU.mfn)
+ cn_pfn = i;
+ if (xen_state.virt_mfn_list[i] == grub_xen_start_page_addr->store_mfn)
+ st_pfn = i;
+ }
+ if (cn_pfn == (grub_xen_mfn_t)-1)
+ return grub_error (GRUB_ERR_BUG, "no console");
+ if (st_pfn == (grub_xen_mfn_t)-1)
+ return grub_error (GRUB_ERR_BUG, "no store");
+ t = xen_state.virt_mfn_list[pfn];
+ xen_state.virt_mfn_list[pfn] = xen_state.virt_mfn_list[cn_pfn];
+ xen_state.virt_mfn_list[cn_pfn] = t;
+ t = xen_state.virt_mfn_list[pfn + 1];
+ xen_state.virt_mfn_list[pfn + 1] = xen_state.virt_mfn_list[st_pfn];
+ xen_state.virt_mfn_list[st_pfn] = t;
+
+ m2p_updates[0].ptr =
+ page2offset (xen_state.virt_mfn_list[pfn]) | MMU_MACHPHYS_UPDATE;
+ m2p_updates[0].val = pfn;
+ m2p_updates[1].ptr =
+ page2offset (xen_state.virt_mfn_list[pfn + 1]) | MMU_MACHPHYS_UPDATE;
+ m2p_updates[1].val = pfn + 1;
+ m2p_updates[2].ptr =
+ page2offset (xen_state.virt_mfn_list[cn_pfn]) | MMU_MACHPHYS_UPDATE;
+ m2p_updates[2].val = cn_pfn;
+ m2p_updates[3].ptr =
+ page2offset (xen_state.virt_mfn_list[st_pfn]) | MMU_MACHPHYS_UPDATE;
+ m2p_updates[3].val = st_pfn;
+
+ grub_xen_mmu_update (m2p_updates, 4, NULL, DOMID_SELF);
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_xen_p2m_alloc (void)
+{
+ grub_relocator_chunk_t ch;
+ grub_size_t p2msize, p2malloc;
+ grub_err_t err;
+ struct grub_xen_mapping *map;
+
+ if (xen_state.virt_mfn_list)
+ return GRUB_ERR_NONE;
+
+ map = xen_state.mappings + xen_state.n_mappings;
+ p2msize = ALIGN_UP (sizeof (grub_xen_mfn_t) *
+ grub_xen_start_page_addr->nr_pages, PAGE_SIZE);
+ if (xen_state.xen_inf.has_p2m_base)
+ {
+ err = get_pgtable_size (xen_state.xen_inf.p2m_base,
+ xen_state.xen_inf.p2m_base + p2msize,
+ (xen_state.max_addr + p2msize) >> PAGE_SHIFT);
+ if (err)
+ return err;
+
+ map->area.pfn_start = xen_state.max_addr >> PAGE_SHIFT;
+ p2malloc = p2msize + page2offset (map->area.n_pt_pages);
+ xen_state.n_mappings++;
+ xen_state.next_start.mfn_list = xen_state.xen_inf.p2m_base;
+ xen_state.next_start.first_p2m_pfn = map->area.pfn_start;
+ xen_state.next_start.nr_p2m_frames = p2malloc >> PAGE_SHIFT;
+ }
+ else
+ {
+ xen_state.next_start.mfn_list =
+ xen_state.max_addr + xen_state.xen_inf.virt_base;
+ p2malloc = p2msize;
+ }
+
+ xen_state.state.mfn_list = xen_state.max_addr;
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
+ xen_state.max_addr, p2malloc);
+ if (err)
+ return err;
+ xen_state.virt_mfn_list = get_virtual_current_address (ch);
+ if (xen_state.xen_inf.has_p2m_base)
+ map->where = (grub_uint64_t *) xen_state.virt_mfn_list +
+ p2msize / sizeof (grub_uint64_t);
+ grub_memcpy (xen_state.virt_mfn_list,
+ (void *) grub_xen_start_page_addr->mfn_list, p2msize);
+ xen_state.max_addr += p2malloc;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_xen_special_alloc (void)
+{
+ grub_relocator_chunk_t ch;
+ grub_err_t err;
+
+ if (xen_state.virt_start_info)
+ return GRUB_ERR_NONE;
+
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
+ xen_state.max_addr,
+ sizeof (xen_state.next_start));
+ if (err)
+ return err;
+ xen_state.state.start_info = xen_state.max_addr + xen_state.xen_inf.virt_base;
+ xen_state.virt_start_info = get_virtual_current_address (ch);
+ xen_state.max_addr =
+ ALIGN_UP (xen_state.max_addr + sizeof (xen_state.next_start), PAGE_SIZE);
+ xen_state.console_pfn = xen_state.max_addr >> PAGE_SHIFT;
+ xen_state.max_addr += 2 * PAGE_SIZE;
+
+ xen_state.next_start.nr_pages = grub_xen_start_page_addr->nr_pages;
+ grub_memcpy (xen_state.next_start.magic, grub_xen_start_page_addr->magic,
+ sizeof (xen_state.next_start.magic));
+ xen_state.next_start.store_mfn = grub_xen_start_page_addr->store_mfn;
+ xen_state.next_start.store_evtchn = grub_xen_start_page_addr->store_evtchn;
+ xen_state.next_start.console.domU = grub_xen_start_page_addr->console.domU;
+ xen_state.next_start.shared_info = grub_xen_start_page_addr->shared_info;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_xen_pt_alloc (void)
+{
+ grub_relocator_chunk_t ch;
+ grub_err_t err;
+ grub_uint64_t nr_info_pages;
+ grub_uint64_t nr_need_pages;
+ grub_uint64_t try_virt_end;
+ struct grub_xen_mapping *map;
+
+ if (xen_state.pgtbl_end)
+ return GRUB_ERR_NONE;
+
+ map = xen_state.mappings + xen_state.n_mappings;
+ xen_state.map_reloc = map + 1;
+
+ xen_state.next_start.pt_base =
+ xen_state.max_addr + xen_state.xen_inf.virt_base;
+ nr_info_pages = xen_state.max_addr >> PAGE_SHIFT;
+ nr_need_pages = nr_info_pages;
+
+ while (1)
+ {
+ try_virt_end = ALIGN_UP (xen_state.xen_inf.virt_base +
+ page2offset (nr_need_pages) +
+ ADDITIONAL_SIZE + STACK_SIZE, ALIGN_SIZE);
+
+ err = get_pgtable_size (xen_state.xen_inf.virt_base, try_virt_end,
+ nr_info_pages);
+ if (err)
+ return err;
+ xen_state.n_mappings++;
+
+ /* Map the relocator page either at virtual 0 or after end of area. */
+ nr_need_pages = nr_info_pages + map->area.n_pt_pages;
+ if (xen_state.xen_inf.virt_base)
+ err = get_pgtable_size (0, PAGE_SIZE, nr_need_pages);
+ else
+ err = get_pgtable_size (try_virt_end, try_virt_end + PAGE_SIZE,
+ nr_need_pages);
+ if (err)
+ return err;
+ nr_need_pages += xen_state.map_reloc->area.n_pt_pages;
+
+ if (xen_state.xen_inf.virt_base + page2offset (nr_need_pages) <=
+ try_virt_end)
+ break;
+
+ xen_state.n_mappings--;
+ }
+
+ xen_state.n_mappings++;
+ nr_need_pages = map->area.n_pt_pages + xen_state.map_reloc->area.n_pt_pages;
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
+ xen_state.max_addr,
+ page2offset (nr_need_pages));
+ if (err)
+ return err;
+
+ map->where = get_virtual_current_address (ch);
+ map->area.pfn_start = 0;
+ xen_state.max_addr += page2offset (nr_need_pages);
+ xen_state.state.stack =
+ xen_state.max_addr + STACK_SIZE + xen_state.xen_inf.virt_base;
+ xen_state.next_start.nr_pt_frames = nr_need_pages;
+ xen_state.max_addr = try_virt_end - xen_state.xen_inf.virt_base;
+ xen_state.pgtbl_end = xen_state.max_addr >> PAGE_SHIFT;
+ xen_state.map_reloc->where = (grub_uint64_t *) ((char *) map->where +
+ page2offset (map->area.n_pt_pages));
+
+ return GRUB_ERR_NONE;
+}
+
+/* Allocate all not yet allocated areas mapped by initial page tables. */
+static grub_err_t
+grub_xen_alloc_boot_data (void)
+{
+ grub_err_t err;
+
+ if (!xen_state.xen_inf.has_p2m_base)
+ {
+ err = grub_xen_p2m_alloc ();
+ if (err)
+ return err;
+ }
+ err = grub_xen_special_alloc ();
+ if (err)
+ return err;
+ err = grub_xen_pt_alloc ();
+ if (err)
+ return err;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_xen_boot (void)
+{
+ grub_err_t err;
+ grub_uint64_t nr_pages;
+ struct gnttab_set_version gnttab_setver;
+ grub_size_t i;
+
+ if (grub_xen_n_allocated_shared_pages)
+ return grub_error (GRUB_ERR_BUG, "active grants");
+
+ err = grub_xen_alloc_boot_data ();
+ if (err)
+ return err;
+ if (xen_state.xen_inf.has_p2m_base)
+ {
+ err = grub_xen_p2m_alloc ();
+ if (err)
+ return err;
+ }
+
+ err = set_mfns (xen_state.console_pfn);
+ if (err)
+ return err;
+
+ nr_pages = xen_state.max_addr >> PAGE_SHIFT;
+
+ grub_dprintf ("xen", "bootstrap domain %llx+%llx\n",
+ (unsigned long long) xen_state.xen_inf.virt_base,
+ (unsigned long long) page2offset (nr_pages));
+
+ xen_state.map_reloc->area.pfn_start = nr_pages;
+ generate_page_table (xen_state.virt_mfn_list);
+
+ xen_state.state.entry_point = xen_state.xen_inf.entry_point;
+
+ *xen_state.virt_start_info = xen_state.next_start;
+
+ grub_memset (&gnttab_setver, 0, sizeof (gnttab_setver));
+
+ gnttab_setver.version = 1;
+ grub_xen_grant_table_op (GNTTABOP_set_version, &gnttab_setver, 1);
+
+ for (i = 0; i < ARRAY_SIZE (grub_xen_shared_info->evtchn_pending); i++)
+ grub_xen_shared_info->evtchn_pending[i] = 0;
+
+ return grub_relocator_xen_boot (xen_state.relocator, xen_state.state, nr_pages,
+ xen_state.xen_inf.virt_base <
+ PAGE_SIZE ? page2offset (nr_pages) : 0,
+ xen_state.pgtbl_end - 1,
+ page2offset (xen_state.pgtbl_end - 1) +
+ xen_state.xen_inf.virt_base);
+}
+
+static void
+grub_xen_reset (void)
+{
+ grub_relocator_unload (xen_state.relocator);
+
+ grub_memset (&xen_state, 0, sizeof (xen_state));
+}
+
+static grub_err_t
+grub_xen_unload (void)
+{
+ grub_xen_reset ();
+ grub_dl_unref (my_mod);
+ return GRUB_ERR_NONE;
+}
+
+#define HYPERCALL_INTERFACE_SIZE 32
+
+#ifdef __x86_64__
+static grub_uint8_t template[] =
+ {
+ 0x51, /* push %rcx */
+ 0x41, 0x53, /* push %r11 */
+ 0x48, 0xc7, 0xc0, 0xbb, 0xaa, 0x00, 0x00, /* mov $0xaabb,%rax */
+ 0x0f, 0x05, /* syscall */
+ 0x41, 0x5b, /* pop %r11 */
+ 0x59, /* pop %rcx */
+ 0xc3 /* ret */
+ };
+
+static grub_uint8_t template_iret[] =
+ {
+ 0x51, /* push %rcx */
+ 0x41, 0x53, /* push %r11 */
+ 0x50, /* push %rax */
+ 0x48, 0xc7, 0xc0, 0x17, 0x00, 0x00, 0x00, /* mov $0x17,%rax */
+ 0x0f, 0x05 /* syscall */
+ };
+#define CALLNO_OFFSET 6
+#else
+
+static grub_uint8_t template[] =
+ {
+ 0xb8, 0xbb, 0xaa, 0x00, 0x00, /* mov imm32, %eax */
+ 0xcd, 0x82, /* int $0x82 */
+ 0xc3 /* ret */
+ };
+
+static grub_uint8_t template_iret[] =
+ {
+ 0x50, /* push %eax */
+ 0xb8, 0x17, 0x00, 0x00, 0x00, /* mov $0x17,%eax */
+ 0xcd, 0x82, /* int $0x82 */
+ };
+#define CALLNO_OFFSET 1
+
+#endif
+
+
+static void
+set_hypercall_interface (grub_uint8_t *tgt, unsigned callno)
+{
+ if (callno == 0x17)
+ {
+ grub_memcpy (tgt, template_iret, ARRAY_SIZE (template_iret));
+ grub_memset (tgt + ARRAY_SIZE (template_iret), 0xcc,
+ HYPERCALL_INTERFACE_SIZE - ARRAY_SIZE (template_iret));
+ return;
+ }
+ grub_memcpy (tgt, template, ARRAY_SIZE (template));
+ grub_memset (tgt + ARRAY_SIZE (template), 0xcc,
+ HYPERCALL_INTERFACE_SIZE - ARRAY_SIZE (template));
+ tgt[CALLNO_OFFSET] = callno & 0xff;
+ tgt[CALLNO_OFFSET + 1] = callno >> 8;
+}
+
+#ifdef __x86_64__
+#define grub_elfXX_load grub_elf64_load
+#else
+#define grub_elfXX_load grub_elf32_load
+#endif
+
+static grub_err_t
+grub_cmd_xen (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_file_t file;
+ grub_elf_t elf;
+ grub_err_t err;
+ void *kern_chunk_src;
+ grub_relocator_chunk_t ch;
+ grub_addr_t kern_start;
+ grub_addr_t kern_end;
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ /* Call grub_loader_unset early to avoid it being called by grub_loader_set */
+ grub_loader_unset ();
+
+ grub_xen_reset ();
+
+ err = grub_create_loader_cmdline (argc - 1, argv + 1,
+ (char *) xen_state.next_start.cmd_line,
+ sizeof (xen_state.next_start.cmd_line) - 1,
+ GRUB_VERIFY_KERNEL_CMDLINE);
+ if (err)
+ return err;
+
+ file = grub_file_open (argv[0], GRUB_FILE_TYPE_LINUX_KERNEL);
+ if (!file)
+ return grub_errno;
+
+ elf = grub_xen_file (file);
+ if (!elf)
+ goto fail;
+
+ err = grub_xen_get_info (elf, &xen_state.xen_inf);
+ if (err)
+ goto fail;
+#ifdef __x86_64__
+ if (xen_state.xen_inf.arch != GRUB_XEN_FILE_X86_64)
+#else
+ if (xen_state.xen_inf.arch != GRUB_XEN_FILE_I386_PAE
+ && xen_state.xen_inf.arch != GRUB_XEN_FILE_I386_PAE_BIMODE)
+#endif
+ {
+ grub_error (GRUB_ERR_BAD_OS, "incompatible architecture: %d",
+ xen_state.xen_inf.arch);
+ goto fail;
+ }
+
+ if (xen_state.xen_inf.virt_base & (PAGE_SIZE - 1))
+ {
+ grub_error (GRUB_ERR_BAD_OS, "unaligned virt_base");
+ goto fail;
+ }
+ grub_dprintf ("xen", "virt_base = %llx, entry = %llx\n",
+ (unsigned long long) xen_state.xen_inf.virt_base,
+ (unsigned long long) xen_state.xen_inf.entry_point);
+
+ xen_state.relocator = grub_relocator_new ();
+ if (!xen_state.relocator)
+ goto fail;
+
+ kern_start = xen_state.xen_inf.kern_start - xen_state.xen_inf.paddr_offset;
+ kern_end = xen_state.xen_inf.kern_end - xen_state.xen_inf.paddr_offset;
+
+ if (xen_state.xen_inf.has_hypercall_page)
+ {
+ grub_dprintf ("xen", "hypercall page at 0x%llx\n",
+ (unsigned long long) xen_state.xen_inf.hypercall_page);
+ kern_start = grub_min (kern_start, xen_state.xen_inf.hypercall_page -
+ xen_state.xen_inf.virt_base);
+ kern_end = grub_max (kern_end, xen_state.xen_inf.hypercall_page -
+ xen_state.xen_inf.virt_base + PAGE_SIZE);
+ }
+
+ xen_state.max_addr = ALIGN_UP (kern_end, PAGE_SIZE);
+
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch, kern_start,
+ kern_end - kern_start);
+ if (err)
+ goto fail;
+ kern_chunk_src = get_virtual_current_address (ch);
+
+ grub_dprintf ("xen", "paddr_offset = 0x%llx\n",
+ (unsigned long long) xen_state.xen_inf.paddr_offset);
+ grub_dprintf ("xen", "kern_start = 0x%llx, kern_end = 0x%llx\n",
+ (unsigned long long) xen_state.xen_inf.kern_start,
+ (unsigned long long) xen_state.xen_inf.kern_end);
+
+ err = grub_elfXX_load (elf, argv[0],
+ (grub_uint8_t *) kern_chunk_src - kern_start
+ - xen_state.xen_inf.paddr_offset, 0, 0, 0);
+
+ if (xen_state.xen_inf.has_hypercall_page)
+ {
+ unsigned i;
+ for (i = 0; i < PAGE_SIZE / HYPERCALL_INTERFACE_SIZE; i++)
+ set_hypercall_interface ((grub_uint8_t *) kern_chunk_src +
+ i * HYPERCALL_INTERFACE_SIZE +
+ xen_state.xen_inf.hypercall_page -
+ xen_state.xen_inf.virt_base - kern_start, i);
+ }
+
+ if (err)
+ goto fail;
+
+ grub_dl_ref (my_mod);
+ xen_state.loaded = 1;
+
+ grub_loader_set (grub_xen_boot, grub_xen_unload, 0);
+
+ goto fail;
+
+fail:
+ /* grub_errno might be clobbered by further calls, save the error reason. */
+ err = grub_errno;
+
+ if (elf)
+ grub_elf_close (elf);
+ else if (file)
+ grub_file_close (file);
+
+ if (err != GRUB_ERR_NONE)
+ grub_xen_reset ();
+
+ return err;
+}
+
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_size_t size = 0;
+ grub_err_t err;
+ struct grub_linux_initrd_context initrd_ctx = { 0, 0, 0 };
+ grub_relocator_chunk_t ch;
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto fail;
+ }
+
+ if (!xen_state.loaded)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("you need to load the kernel first"));
+ goto fail;
+ }
+
+ if (xen_state.next_start.mod_start || xen_state.next_start.mod_len)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("initrd already loaded"));
+ goto fail;
+ }
+
+ if (xen_state.xen_inf.unmapped_initrd)
+ {
+ err = grub_xen_alloc_boot_data ();
+ if (err)
+ goto fail;
+ }
+
+ if (grub_initrd_init (argc, argv, &initrd_ctx))
+ goto fail;
+
+ size = grub_get_initrd_size (&initrd_ctx);
+
+ if (size)
+ {
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
+ xen_state.max_addr, size);
+ if (err)
+ goto fail;
+
+ if (grub_initrd_load (&initrd_ctx, argv,
+ get_virtual_current_address (ch)))
+ goto fail;
+ }
+
+ xen_state.next_start.mod_len = size;
+
+ if (xen_state.xen_inf.unmapped_initrd)
+ {
+ xen_state.next_start.flags |= SIF_MOD_START_PFN;
+ xen_state.next_start.mod_start = xen_state.max_addr >> PAGE_SHIFT;
+ }
+ else
+ xen_state.next_start.mod_start =
+ xen_state.max_addr + xen_state.xen_inf.virt_base;
+
+ grub_dprintf ("xen", "Initrd, addr=0x%x, size=0x%x\n",
+ (unsigned) (xen_state.max_addr + xen_state.xen_inf.virt_base),
+ (unsigned) size);
+
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr + size, PAGE_SIZE);
+
+fail:
+ grub_initrd_close (&initrd_ctx);
+
+ return grub_errno;
+}
+
+static grub_err_t
+grub_cmd_module (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_size_t size = 0;
+ grub_err_t err;
+ grub_relocator_chunk_t ch;
+ grub_size_t cmdline_len;
+ int nounzip = 0;
+ grub_file_t file;
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ if (grub_strcmp (argv[0], "--nounzip") == 0)
+ {
+ argv++;
+ argc--;
+ nounzip = 1;
+ }
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ if (!xen_state.loaded)
+ {
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("you need to load the kernel first"));
+ }
+
+ if ((xen_state.next_start.mod_start || xen_state.next_start.mod_len) &&
+ !xen_state.module_info_page)
+ {
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("initrd already loaded"));
+ }
+
+ /* Leave one space for terminator. */
+ if (xen_state.n_modules >= MAX_MODULES - 1)
+ {
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "too many modules");
+ }
+
+ if (!xen_state.module_info_page)
+ {
+ xen_state.xen_inf.unmapped_initrd = 0;
+ xen_state.n_modules = 0;
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr, PAGE_SIZE);
+ xen_state.modules_target_start = xen_state.max_addr;
+ xen_state.next_start.mod_start =
+ xen_state.max_addr + xen_state.xen_inf.virt_base;
+ xen_state.next_start.flags |= SIF_MULTIBOOT_MOD;
+
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
+ xen_state.max_addr, MAX_MODULES
+ *
+ sizeof (xen_state.module_info_page
+ [0]));
+ if (err)
+ return err;
+ xen_state.module_info_page = get_virtual_current_address (ch);
+ grub_memset (xen_state.module_info_page, 0, MAX_MODULES
+ * sizeof (xen_state.module_info_page[0]));
+ xen_state.max_addr +=
+ MAX_MODULES * sizeof (xen_state.module_info_page[0]);
+ }
+
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr, PAGE_SIZE);
+
+ file = grub_file_open (argv[0], GRUB_FILE_TYPE_LINUX_INITRD |
+ (nounzip ? GRUB_FILE_TYPE_NO_DECOMPRESS : GRUB_FILE_TYPE_NONE));
+ if (!file)
+ return grub_errno;
+ size = grub_file_size (file);
+
+ cmdline_len = grub_loader_cmdline_size (argc - 1, argv + 1);
+
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
+ xen_state.max_addr, cmdline_len);
+ if (err)
+ goto fail;
+
+ err = grub_create_loader_cmdline (argc - 1, argv + 1,
+ get_virtual_current_address (ch), cmdline_len,
+ GRUB_VERIFY_MODULE_CMDLINE);
+ if (err)
+ goto fail;
+
+ xen_state.module_info_page[xen_state.n_modules].cmdline =
+ xen_state.max_addr - xen_state.modules_target_start;
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr + cmdline_len, PAGE_SIZE);
+
+ if (size)
+ {
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
+ xen_state.max_addr, size);
+ if (err)
+ goto fail;
+ if (grub_file_read (file, get_virtual_current_address (ch), size)
+ != (grub_ssize_t) size)
+ {
+ if (!grub_errno)
+ grub_error (GRUB_ERR_FILE_READ_ERROR,
+ N_("premature end of file %s"), argv[0]);
+ goto fail;
+ }
+ }
+ xen_state.next_start.mod_len =
+ xen_state.max_addr + size - xen_state.modules_target_start;
+ xen_state.module_info_page[xen_state.n_modules].mod_start =
+ xen_state.max_addr - xen_state.modules_target_start;
+ xen_state.module_info_page[xen_state.n_modules].mod_end =
+ xen_state.max_addr + size - xen_state.modules_target_start;
+
+ xen_state.n_modules++;
+ grub_dprintf ("xen", "module, addr=0x%x, size=0x%x\n",
+ (unsigned) xen_state.max_addr, (unsigned) size);
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr + size, PAGE_SIZE);
+
+
+fail:
+ grub_file_close (file);
+
+ return grub_errno;
+}
+
+static grub_command_t cmd_xen, cmd_initrd, cmd_module, cmd_multiboot;
+
+GRUB_MOD_INIT (xen)
+{
+ cmd_xen = grub_register_command ("linux", grub_cmd_xen,
+ 0, N_("Load Linux."));
+ cmd_multiboot = grub_register_command ("multiboot", grub_cmd_xen,
+ 0, N_("Load Linux."));
+ cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd,
+ 0, N_("Load initrd."));
+ cmd_module = grub_register_command ("module", grub_cmd_module,
+ 0, N_("Load module."));
+ my_mod = mod;
+}
+
+GRUB_MOD_FINI (xen)
+{
+ grub_unregister_command (cmd_xen);
+ grub_unregister_command (cmd_initrd);
+ grub_unregister_command (cmd_multiboot);
+ grub_unregister_command (cmd_module);
+}
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/ia64/efi/linux.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/ia64/efi/linux.c
new file mode 100644
index 00000000..7987fd1b
--- /dev/null
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/ia64/efi/linux.c
@@ -0,0 +1,607 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2008,2010 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see .
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#pragma GCC diagnostic ignored "-Wcast-align"
+
+#define ALIGN_MIN (256*1024*1024)
+
+#define GRUB_ELF_SEARCH 1024
+
+#define BOOT_PARAM_SIZE 16384
+
+struct ia64_boot_param
+{
+ grub_uint64_t command_line; /* physical address of command line. */
+ grub_uint64_t efi_systab; /* physical address of EFI system table */
+ grub_uint64_t efi_memmap; /* physical address of EFI memory map */
+ grub_uint64_t efi_memmap_size; /* size of EFI memory map */
+ grub_uint64_t efi_memdesc_size; /* size of an EFI memory map descriptor */
+ grub_uint32_t efi_memdesc_version; /* memory descriptor version */
+ struct
+ {
+ grub_uint16_t num_cols; /* number of columns on console output dev */
+ grub_uint16_t num_rows; /* number of rows on console output device */
+ grub_uint16_t orig_x; /* cursor's x position */
+ grub_uint16_t orig_y; /* cursor's y position */
+ } console_info;
+ grub_uint64_t fpswa; /* physical address of the fpswa interface */
+ grub_uint64_t initrd_start;
+ grub_uint64_t initrd_size;
+};
+
+typedef struct
+{
+ grub_uint32_t revision;
+ grub_uint32_t reserved;
+ void *fpswa;
+} fpswa_interface_t;
+static fpswa_interface_t *fpswa;
+
+#define NEXT_MEMORY_DESCRIPTOR(desc, size) \
+ ((grub_efi_memory_descriptor_t *) ((char *) (desc) + (size)))
+
+static grub_dl_t my_mod;
+
+static int loaded;
+
+/* Kernel base and size. */
+static void *kernel_mem;
+static grub_efi_uintn_t kernel_pages;
+static grub_uint64_t entry;
+
+/* Initrd base and size. */
+static void *initrd_mem;
+static grub_efi_uintn_t initrd_pages;
+static grub_efi_uintn_t initrd_size;
+
+static struct ia64_boot_param *boot_param;
+static grub_efi_uintn_t boot_param_pages;
+
+static inline grub_size_t
+page_align (grub_size_t size)
+{
+ return (size + (1 << 12) - 1) & (~((1 << 12) - 1));
+}
+
+static void
+query_fpswa (void)
+{
+ grub_efi_handle_t fpswa_image;
+ grub_efi_boot_services_t *bs;
+ grub_efi_status_t status;
+ grub_efi_uintn_t size;
+ static const grub_efi_guid_t fpswa_protocol =
+ { 0xc41b6531, 0x97b9, 0x11d3,
+ {0x9a, 0x29, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d} };
+
+ if (fpswa != NULL)
+ return;
+
+ size = sizeof(grub_efi_handle_t);
+
+ bs = grub_efi_system_table->boot_services;
+ status = bs->locate_handle (GRUB_EFI_BY_PROTOCOL,
+ (void *) &fpswa_protocol,
+ NULL, &size, &fpswa_image);
+ if (status != GRUB_EFI_SUCCESS)
+ {
+ grub_printf ("%s\n", _("Could not locate FPSWA driver"));
+ return;
+ }
+ status = bs->handle_protocol (fpswa_image,
+ (void *) &fpswa_protocol, (void *) &fpswa);
+ if (status != GRUB_EFI_SUCCESS)
+ {
+ grub_printf ("%s\n",
+ _("FPSWA protocol wasn't able to find the interface"));
+ return;
+ }
+}
+
+static void
+free_pages (void)
+{
+ if (kernel_mem)
+ {
+ grub_efi_free_pages ((grub_addr_t) kernel_mem, kernel_pages);
+ kernel_mem = 0;
+ }
+
+ if (initrd_mem)
+ {
+ grub_efi_free_pages ((grub_addr_t) initrd_mem, initrd_pages);
+ initrd_mem = 0;
+ }
+
+ if (boot_param)
+ {
+ /* Free bootparam. */
+ grub_efi_free_pages ((grub_efi_physical_address_t) boot_param,
+ boot_param_pages);
+ boot_param = 0;
+ }
+}
+
+static void *
+allocate_pages (grub_uint64_t align, grub_uint64_t size_pages,
+ grub_uint64_t nobase)
+{
+ grub_uint64_t size;
+ grub_efi_uintn_t desc_size;
+ grub_efi_memory_descriptor_t *mmap, *mmap_end;
+ grub_efi_uintn_t mmap_size, tmp_mmap_size;
+ grub_efi_memory_descriptor_t *desc;
+ void *mem = NULL;
+
+ size = size_pages << 12;
+
+ mmap_size = grub_efi_find_mmap_size ();
+ if (!mmap_size)
+ return 0;
+
+ /* Read the memory map temporarily, to find free space. */
+ mmap = grub_malloc (mmap_size);
+ if (! mmap)
+ return 0;
+
+ tmp_mmap_size = mmap_size;
+ if (grub_efi_get_memory_map (&tmp_mmap_size, mmap, 0, &desc_size, 0) <= 0)
+ {
+ grub_error (GRUB_ERR_IO, "cannot get memory map");
+ goto fail;
+ }
+
+ mmap_end = NEXT_MEMORY_DESCRIPTOR (mmap, tmp_mmap_size);
+
+ /* First, find free pages for the real mode code
+ and the memory map buffer. */
+ for (desc = mmap;
+ desc < mmap_end;
+ desc = NEXT_MEMORY_DESCRIPTOR (desc, desc_size))
+ {
+ grub_uint64_t start, end;
+ grub_uint64_t aligned_start;
+
+ if (desc->type != GRUB_EFI_CONVENTIONAL_MEMORY)
+ continue;
+
+ start = desc->physical_start;
+ end = start + (desc->num_pages << 12);
+ /* Align is a power of 2. */
+ aligned_start = (start + align - 1) & ~(align - 1);
+ if (aligned_start + size > end)
+ continue;
+ if (aligned_start == nobase)
+ aligned_start += align;
+ if (aligned_start + size > end)
+ continue;
+ mem = grub_efi_allocate_fixed (aligned_start, size_pages);
+ if (! mem)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot allocate memory");
+ goto fail;
+ }
+ break;
+ }
+
+ if (! mem)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot allocate memory");
+ goto fail;
+ }
+
+ grub_free (mmap);
+ return mem;
+
+ fail:
+ grub_free (mmap);
+ free_pages ();
+ return 0;
+}
+
+static void
+set_boot_param_console (void)
+{
+ grub_efi_simple_text_output_interface_t *conout;
+ grub_efi_uintn_t cols, rows;
+
+ conout = grub_efi_system_table->con_out;
+ if (conout->query_mode (conout, conout->mode->mode, &cols, &rows)
+ != GRUB_EFI_SUCCESS)
+ return;
+
+ grub_dprintf ("linux",
+ "Console info: cols=%lu rows=%lu x=%u y=%u\n",
+ cols, rows,
+ conout->mode->cursor_column, conout->mode->cursor_row);
+
+ boot_param->console_info.num_cols = cols;
+ boot_param->console_info.num_rows = rows;
+ boot_param->console_info.orig_x = conout->mode->cursor_column;
+ boot_param->console_info.orig_y = conout->mode->cursor_row;
+}
+
+static grub_err_t
+grub_linux_boot (void)
+{
+ grub_efi_uintn_t mmap_size;
+ grub_efi_uintn_t map_key;
+ grub_efi_uintn_t desc_size;
+ grub_efi_uint32_t desc_version;
+ grub_efi_memory_descriptor_t *mmap_buf;
+ grub_err_t err;
+
+ /* FPSWA. */
+ query_fpswa ();
+ boot_param->fpswa = (grub_uint64_t)fpswa;
+
+ /* Initrd. */
+ boot_param->initrd_start = (grub_uint64_t)initrd_mem;
+ boot_param->initrd_size = (grub_uint64_t)initrd_size;
+
+ set_boot_param_console ();
+
+ grub_dprintf ("linux", "Jump to %016lx\n", entry);
+
+ /* MDT.
+ Must be done after grub_machine_fini because map_key is used by
+ exit_boot_services. */
+ mmap_size = grub_efi_find_mmap_size ();
+ if (! mmap_size)
+ return grub_errno;
+ mmap_buf = grub_efi_allocate_any_pages (page_align (mmap_size) >> 12);
+ if (! mmap_buf)
+ return grub_error (GRUB_ERR_IO, "cannot allocate memory map");
+ err = grub_efi_finish_boot_services (&mmap_size, mmap_buf, &map_key,
+ &desc_size, &desc_version);
+ if (err)
+ return err;
+
+ boot_param->efi_memmap = (grub_uint64_t)mmap_buf;
+ boot_param->efi_memmap_size = mmap_size;
+ boot_param->efi_memdesc_size = desc_size;
+ boot_param->efi_memdesc_version = desc_version;
+
+ /* See you next boot. */
+ asm volatile ("mov r28=%1; br.sptk.few %0" :: "b"(entry),"r"(boot_param));
+
+ /* Never reach here. */
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_linux_unload (void)
+{
+ free_pages ();
+ grub_dl_unref (my_mod);
+ loaded = 0;
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_load_elf64 (grub_file_t file, void *buffer, const char *filename)
+{
+ Elf64_Ehdr *ehdr = (Elf64_Ehdr *) buffer;
+ Elf64_Phdr *phdr;
+ int i;
+ grub_uint64_t low_addr;
+ grub_uint64_t high_addr;
+ grub_uint64_t align;
+ grub_uint64_t reloc_offset;
+ const char *relocate;
+
+ if (ehdr->e_ident[EI_MAG0] != ELFMAG0
+ || ehdr->e_ident[EI_MAG1] != ELFMAG1
+ || ehdr->e_ident[EI_MAG2] != ELFMAG2
+ || ehdr->e_ident[EI_MAG3] != ELFMAG3
+ || ehdr->e_ident[EI_DATA] != ELFDATA2LSB)
+ return grub_error(GRUB_ERR_UNKNOWN_OS,
+ N_("invalid arch-independent ELF magic"));
+
+ if (ehdr->e_ident[EI_CLASS] != ELFCLASS64
+ || ehdr->e_version != EV_CURRENT
+ || ehdr->e_machine != EM_IA_64)
+ return grub_error (GRUB_ERR_UNKNOWN_OS,
+ N_("invalid arch-dependent ELF magic"));
+
+ if (ehdr->e_type != ET_EXEC)
+ return grub_error (GRUB_ERR_UNKNOWN_OS,
+ N_("this ELF file is not of the right type"));
+
+ /* FIXME: Should we support program headers at strange locations? */
+ if (ehdr->e_phoff + ehdr->e_phnum * ehdr->e_phentsize > GRUB_ELF_SEARCH)
+ return grub_error (GRUB_ERR_BAD_OS, "program header at a too high offset");
+
+ entry = ehdr->e_entry;
+
+ /* Compute low, high and align addresses. */
+ low_addr = ~0UL;
+ high_addr = 0;
+ align = 0;
+ for (i = 0; i < ehdr->e_phnum; i++)
+ {
+ phdr = (Elf64_Phdr *) ((char *) buffer + ehdr->e_phoff
+ + i * ehdr->e_phentsize);
+ if (phdr->p_type == PT_LOAD)
+ {
+ if (phdr->p_paddr < low_addr)
+ low_addr = phdr->p_paddr;
+ if (phdr->p_paddr + phdr->p_memsz > high_addr)
+ high_addr = phdr->p_paddr + phdr->p_memsz;
+ if (phdr->p_align > align)
+ align = phdr->p_align;
+ }
+ }
+
+ if (align < ALIGN_MIN)
+ align = ALIGN_MIN;
+
+ if (high_addr == 0)
+ return grub_error (GRUB_ERR_BAD_OS, "no program entries");
+
+ kernel_pages = page_align (high_addr - low_addr) >> 12;
+
+ /* Undocumented on purpose. */
+ relocate = grub_env_get ("linux_relocate");
+ if (!relocate || grub_strcmp (relocate, "force") != 0)
+ {
+ kernel_mem = grub_efi_allocate_fixed (low_addr, kernel_pages);
+ reloc_offset = 0;
+ }
+ /* Try to relocate. */
+ if (! kernel_mem && (!relocate || grub_strcmp (relocate, "off") != 0))
+ {
+ kernel_mem = allocate_pages (align, kernel_pages, low_addr);
+ if (kernel_mem)
+ {
+ reloc_offset = (grub_uint64_t)kernel_mem - low_addr;
+ grub_dprintf ("linux", " Relocated at %p (offset=%016lx)\n",
+ kernel_mem, reloc_offset);
+ entry += reloc_offset;
+ }
+ }
+ if (! kernel_mem)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ "cannot allocate memory for OS");
+
+ /* Load every loadable segment in memory. */
+ for (i = 0; i < ehdr->e_phnum; i++)
+ {
+ phdr = (Elf64_Phdr *) ((char *) buffer + ehdr->e_phoff
+ + i * ehdr->e_phentsize);
+ if (phdr->p_type == PT_LOAD)
+ {
+ grub_dprintf ("linux", " [paddr=%lx load=%lx memsz=%08lx "
+ "off=%lx flags=%x]\n",
+ phdr->p_paddr, phdr->p_paddr + reloc_offset,
+ phdr->p_memsz, phdr->p_offset, phdr->p_flags);
+
+ if (grub_file_seek (file, phdr->p_offset) == (grub_off_t)-1)
+ return grub_errno;
+
+ if (grub_file_read (file, (void *) (phdr->p_paddr + reloc_offset),
+ phdr->p_filesz)
+ != (grub_ssize_t) phdr->p_filesz)
+ {
+ if (!grub_errno)
+ grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
+ filename);
+ return grub_errno;
+ }
+
+ if (phdr->p_filesz < phdr->p_memsz)
+ grub_memset
+ ((char *)(phdr->p_paddr + reloc_offset + phdr->p_filesz),
+ 0, phdr->p_memsz - phdr->p_filesz);
+
+ /* Sync caches if necessary. */
+ if (phdr->p_flags & PF_X)
+ grub_arch_sync_caches
+ ((void *)(phdr->p_paddr + reloc_offset), phdr->p_memsz);
+ }
+ }
+ loaded = 1;
+ return 0;
+}
+
+static grub_err_t
+grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_file_t file = 0;
+ char buffer[GRUB_ELF_SEARCH];
+ char *cmdline, *p;
+ grub_ssize_t len;
+ int i;
+
+ grub_dl_ref (my_mod);
+
+ grub_loader_unset ();
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto fail;
+ }
+
+ file = grub_file_open (argv[0], GRUB_FILE_TYPE_LINUX_KERNEL);
+ if (! file)
+ goto fail;
+
+ len = grub_file_read (file, buffer, sizeof (buffer));
+ if (len < (grub_ssize_t) sizeof (Elf64_Ehdr))
+ {
+ if (!grub_errno)
+ grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
+ argv[0]);
+ goto fail;
+ }
+
+ grub_dprintf ("linux", "Loading linux: %s\n", argv[0]);
+
+ if (grub_load_elf64 (file, buffer, argv[0]))
+ goto fail;
+
+ len = sizeof("BOOT_IMAGE=") + 8;
+ for (i = 0; i < argc; i++)
+ len += grub_strlen (argv[i]) + 1;
+ len += sizeof (struct ia64_boot_param) + 512; /* Room for extensions. */
+ boot_param_pages = page_align (len) >> 12;
+ boot_param = grub_efi_allocate_any_pages (boot_param_pages);
+ if (boot_param == 0)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ "cannot allocate memory for bootparams");
+ goto fail;
+ }
+
+ grub_memset (boot_param, 0, len);
+ cmdline = ((char *)(boot_param + 1)) + 256;
+
+ /* Build cmdline. */
+ p = grub_stpcpy (cmdline, "BOOT_IMAGE");
+ for (i = 0; i < argc; i++)
+ {
+ *p++ = ' ';
+ p = grub_stpcpy (p, argv[i]);
+ }
+ cmdline[10] = '=';
+
+ *p = '\0';
+
+ if (grub_verify_string (cmdline, GRUB_VERIFY_KERNEL_CMDLINE))
+ goto fail;
+
+ boot_param->command_line = (grub_uint64_t) cmdline;
+ boot_param->efi_systab = (grub_uint64_t) grub_efi_system_table;
+
+ grub_errno = GRUB_ERR_NONE;
+
+ grub_loader_set (grub_linux_boot, grub_linux_unload, 0);
+
+ fail:
+ if (file)
+ grub_file_close (file);
+
+ if (grub_errno != GRUB_ERR_NONE)
+ {
+ grub_efi_free_pages ((grub_efi_physical_address_t) boot_param,
+ boot_param_pages);
+ grub_dl_unref (my_mod);
+ }
+ return grub_errno;
+}
+
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ struct grub_linux_initrd_context initrd_ctx = { 0, 0, 0 };
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto fail;
+ }
+
+ if (! loaded)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("you need to load the kernel first"));
+ goto fail;
+ }
+
+ if (grub_initrd_init (argc, argv, &initrd_ctx))
+ goto fail;
+
+ initrd_size = grub_get_initrd_size (&initrd_ctx);
+ grub_dprintf ("linux", "Loading initrd\n");
+
+ initrd_pages = (page_align (initrd_size) >> 12);
+ initrd_mem = grub_efi_allocate_any_pages (initrd_pages);
+ if (! initrd_mem)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot allocate pages");
+ goto fail;
+ }
+
+ grub_dprintf ("linux", "[addr=0x%lx, size=0x%lx]\n",
+ (grub_uint64_t) initrd_mem, initrd_size);
+
+ if (grub_initrd_load (&initrd_ctx, argv, initrd_mem))
+ goto fail;
+ fail:
+ grub_initrd_close (&initrd_ctx);
+ return grub_errno;
+}
+
+static grub_err_t
+grub_cmd_fpswa (grub_command_t cmd __attribute__ ((unused)),
+ int argc __attribute__((unused)),
+ char *argv[] __attribute__((unused)))
+{
+ query_fpswa ();
+ if (fpswa == NULL)
+ grub_puts_ (N_("No FPSWA found"));
+ else
+ grub_printf (_("FPSWA revision: %x\n"), fpswa->revision);
+ return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd_linux, cmd_initrd, cmd_fpswa;
+
+GRUB_MOD_INIT(linux)
+{
+ cmd_linux = grub_register_command ("linux", grub_cmd_linux,
+ N_("FILE [ARGS...]"), N_("Load Linux."));
+
+ cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd,
+ N_("FILE"), N_("Load initrd."));
+
+ cmd_fpswa = grub_register_command ("fpswa", grub_cmd_fpswa,
+ "", N_("Display FPSWA version."));
+
+ my_mod = mod;
+}
+
+GRUB_MOD_FINI(linux)
+{
+ grub_unregister_command (cmd_linux);
+ grub_unregister_command (cmd_initrd);
+ grub_unregister_command (cmd_fpswa);
+}
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/mips/linux.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/mips/linux.c
new file mode 100644
index 00000000..7b723bf1
--- /dev/null
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/mips/linux.c
@@ -0,0 +1,511 @@
+/* linux.c - boot Linux */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2003,2004,2005,2007,2009,2010 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see .
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#pragma GCC diagnostic ignored "-Wcast-align"
+
+/* For frequencies. */
+#include
+
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+#include
+#include
+
+const char loongson_machtypes[][60] =
+ {
+ [GRUB_ARCH_MACHINE_YEELOONG] = "machtype=lemote-yeeloong-2f-8.9inches",
+ [GRUB_ARCH_MACHINE_FULOONG2F] = "machtype=lemote-fuloong-2f-box",
+ [GRUB_ARCH_MACHINE_FULOONG2E] = "machtype=lemote-fuloong-2e-unknown"
+ };
+#endif
+
+static grub_dl_t my_mod;
+
+static int loaded;
+
+static grub_size_t linux_size;
+
+static struct grub_relocator *relocator;
+static grub_uint8_t *playground;
+static grub_addr_t target_addr, entry_addr;
+#ifdef GRUB_MACHINE_MIPS_QEMU_MIPS
+static char *params;
+#else
+static int linux_argc;
+static grub_off_t argv_off;
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+static grub_off_t envp_off;
+#endif
+static grub_off_t rd_addr_arg_off, rd_size_arg_off;
+#endif
+static int initrd_loaded = 0;
+
+static grub_err_t
+grub_linux_boot (void)
+{
+ struct grub_relocator32_state state;
+
+ grub_memset (&state, 0, sizeof (state));
+
+ /* Boot the kernel. */
+ state.gpr[1] = entry_addr;
+
+#ifdef GRUB_MACHINE_MIPS_QEMU_MIPS
+ {
+ grub_err_t err;
+ grub_relocator_chunk_t ch;
+ grub_uint32_t *memsize;
+ grub_uint32_t *magic;
+ char *str;
+
+ err = grub_relocator_alloc_chunk_addr (relocator, &ch,
+ ((16 << 20) - 264),
+ grub_strlen (params) + 1 + 8);
+ if (err)
+ return err;
+ memsize = get_virtual_current_address (ch);
+ magic = memsize + 1;
+ *memsize = grub_mmap_get_lower ();
+ *magic = 0x12345678;
+ str = (char *) (magic + 1);
+ grub_strcpy (str, params);
+ }
+#endif
+
+#ifndef GRUB_MACHINE_MIPS_QEMU_MIPS
+ state.gpr[4] = linux_argc;
+ state.gpr[5] = target_addr + argv_off;
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+ state.gpr[6] = target_addr + envp_off;
+#else
+ state.gpr[6] = 0;
+#endif
+ state.gpr[7] = 0;
+#endif
+ state.jumpreg = 1;
+ grub_relocator32_boot (relocator, state);
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_linux_unload (void)
+{
+ grub_relocator_unload (relocator);
+ grub_dl_unref (my_mod);
+
+#ifdef GRUB_MACHINE_MIPS_QEMU_MIPS
+ grub_free (params);
+ params = 0;
+#endif
+
+ loaded = 0;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_linux_load32 (grub_elf_t elf, const char *filename,
+ void **extra_mem, grub_size_t extra_size)
+{
+ Elf32_Addr base;
+ int extraoff;
+ grub_err_t err;
+
+ /* Linux's entry point incorrectly contains a virtual address. */
+ entry_addr = elf->ehdr.ehdr32.e_entry;
+
+ linux_size = grub_elf32_size (elf, &base, 0);
+ if (linux_size == 0)
+ return grub_errno;
+ target_addr = base;
+ /* Pad it; the kernel scribbles over memory beyond its load address. */
+ linux_size += 0x100000;
+ linux_size = ALIGN_UP (base + linux_size, 4) - base;
+ extraoff = linux_size;
+ linux_size += extra_size;
+
+ relocator = grub_relocator_new ();
+ if (!relocator)
+ return grub_errno;
+
+ {
+ grub_relocator_chunk_t ch;
+ err = grub_relocator_alloc_chunk_addr (relocator, &ch,
+ target_addr & 0x1fffffff,
+ linux_size);
+ if (err)
+ return err;
+ playground = get_virtual_current_address (ch);
+ }
+
+ *extra_mem = playground + extraoff;
+
+ /* Now load the segments into the area we claimed. */
+ return grub_elf32_load (elf, filename, playground - base, GRUB_ELF_LOAD_FLAGS_NONE, 0, 0);
+}
+
+static grub_err_t
+grub_linux_load64 (grub_elf_t elf, const char *filename,
+ void **extra_mem, grub_size_t extra_size)
+{
+ Elf64_Addr base;
+ int extraoff;
+ grub_err_t err;
+
+ /* Linux's entry point incorrectly contains a virtual address. */
+ entry_addr = elf->ehdr.ehdr64.e_entry;
+
+ linux_size = grub_elf64_size (elf, &base, 0);
+ if (linux_size == 0)
+ return grub_errno;
+ target_addr = base;
+ /* Pad it; the kernel scribbles over memory beyond its load address. */
+ linux_size += 0x100000;
+ linux_size = ALIGN_UP (base + linux_size, 4) - base;
+ extraoff = linux_size;
+ linux_size += extra_size;
+
+ relocator = grub_relocator_new ();
+ if (!relocator)
+ return grub_errno;
+
+ {
+ grub_relocator_chunk_t ch;
+ err = grub_relocator_alloc_chunk_addr (relocator, &ch,
+ target_addr & 0x1fffffff,
+ linux_size);
+ if (err)
+ return err;
+ playground = get_virtual_current_address (ch);
+ }
+
+ *extra_mem = playground + extraoff;
+
+ /* Now load the segments into the area we claimed. */
+ return grub_elf64_load (elf, filename, playground - base, GRUB_ELF_LOAD_FLAGS_NONE, 0, 0);
+}
+
+static grub_err_t
+grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_elf_t elf = 0;
+ int size;
+ void *extra = NULL;
+#ifndef GRUB_MACHINE_MIPS_QEMU_MIPS
+ int i;
+ grub_uint32_t *linux_argv;
+ char *linux_args;
+#endif
+ grub_err_t err;
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+ char *linux_envs;
+ grub_uint32_t *linux_envp;
+#endif
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ elf = grub_elf_open (argv[0], GRUB_FILE_TYPE_LINUX_KERNEL);
+ if (! elf)
+ return grub_errno;
+
+ if (elf->ehdr.ehdr32.e_type != ET_EXEC)
+ {
+ grub_elf_close (elf);
+ return grub_error (GRUB_ERR_UNKNOWN_OS,
+ N_("this ELF file is not of the right type"));
+ }
+
+ /* Release the previously used memory. */
+ grub_loader_unset ();
+ loaded = 0;
+
+#ifdef GRUB_MACHINE_MIPS_QEMU_MIPS
+ size = 0;
+#else
+ /* For arguments. */
+ linux_argc = argc;
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+ linux_argc++;
+#endif
+ /* Main arguments. */
+ size = (linux_argc) * sizeof (grub_uint32_t);
+ /* Initrd address and size. */
+ size += 2 * sizeof (grub_uint32_t);
+ /* NULL terminator. */
+ size += sizeof (grub_uint32_t);
+
+ /* First argument is always "a0". */
+ size += ALIGN_UP (sizeof ("a0"), 4);
+ /* Normal arguments. */
+ for (i = 1; i < argc; i++)
+ size += ALIGN_UP (grub_strlen (argv[i]) + 1, 4);
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+ size += ALIGN_UP (sizeof (loongson_machtypes[0]), 4);
+#endif
+
+ /* rd arguments. */
+ size += ALIGN_UP (sizeof ("rd_start=0xXXXXXXXXXXXXXXXX"), 4);
+ size += ALIGN_UP (sizeof ("rd_size=0xXXXXXXXXXXXXXXXX"), 4);
+
+ /* For the environment. */
+ size += sizeof (grub_uint32_t);
+ size += 4 * sizeof (grub_uint32_t);
+ size += ALIGN_UP (sizeof ("memsize=XXXXXXXXXXXXXXXXXXXX"), 4)
+ + ALIGN_UP (sizeof ("highmemsize=XXXXXXXXXXXXXXXXXXXX"), 4)
+ + ALIGN_UP (sizeof ("busclock=XXXXXXXXXX"), 4)
+ + ALIGN_UP (sizeof ("cpuclock=XXXXXXXXXX"), 4);
+#endif
+
+ if (grub_elf_is_elf32 (elf))
+ err = grub_linux_load32 (elf, argv[0], &extra, size);
+ else
+ if (grub_elf_is_elf64 (elf))
+ err = grub_linux_load64 (elf, argv[0], &extra, size);
+ else
+ err = grub_error (GRUB_ERR_BAD_OS, N_("invalid arch-dependent ELF magic"));
+
+ grub_elf_close (elf);
+
+ if (err)
+ return err;
+
+#ifdef GRUB_MACHINE_MIPS_QEMU_MIPS
+ /* Create kernel command line. */
+ size = grub_loader_cmdline_size(argc, argv);
+ params = grub_malloc (size + sizeof (LINUX_IMAGE));
+ if (! params)
+ {
+ grub_linux_unload ();
+ return grub_errno;
+ }
+
+ grub_memcpy (params, LINUX_IMAGE, sizeof (LINUX_IMAGE));
+ grub_create_loader_cmdline (argc, argv, params + sizeof (LINUX_IMAGE) - 1,
+ size, GRUB_VERIFY_KERNEL_CMDLINE);
+#else
+ linux_argv = extra;
+ argv_off = (grub_uint8_t *) linux_argv - (grub_uint8_t *) playground;
+ extra = linux_argv + (linux_argc + 1 + 2);
+ linux_args = extra;
+
+ grub_memcpy (linux_args, "a0", sizeof ("a0"));
+ *linux_argv = (grub_uint8_t *) linux_args - (grub_uint8_t *) playground
+ + target_addr;
+ linux_argv++;
+ linux_args += ALIGN_UP (sizeof ("a0"), 4);
+
+ char *params = linux_args;
+
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+ {
+ unsigned mtype = grub_arch_machine;
+ if (mtype >= ARRAY_SIZE (loongson_machtypes))
+ mtype = 0;
+ /* In Loongson platform, it is the responsibility of the bootloader/firmware
+ to supply the OS kernel with machine type information. */
+ grub_memcpy (linux_args, loongson_machtypes[mtype],
+ sizeof (loongson_machtypes[mtype]));
+ *linux_argv = (grub_uint8_t *) linux_args - (grub_uint8_t *) playground
+ + target_addr;
+ linux_argv++;
+ linux_args += ALIGN_UP (sizeof (loongson_machtypes[mtype]), 4);
+ }
+#endif
+
+ for (i = 1; i < argc; i++)
+ {
+ grub_memcpy (linux_args, argv[i], grub_strlen (argv[i]) + 1);
+ *linux_argv = (grub_uint8_t *) linux_args - (grub_uint8_t *) playground
+ + target_addr;
+ linux_argv++;
+ linux_args += ALIGN_UP (grub_strlen (argv[i]) + 1, 4);
+ }
+
+ *linux_args = '\0';
+
+ err = grub_verify_string (params, GRUB_VERIFY_KERNEL_CMDLINE);
+ if (err)
+ return err;
+
+ /* Reserve space for rd arguments. */
+ rd_addr_arg_off = (grub_uint8_t *) linux_args - (grub_uint8_t *) playground;
+ linux_args += ALIGN_UP (sizeof ("rd_start=0xXXXXXXXXXXXXXXXX"), 4);
+ *linux_argv = 0;
+ linux_argv++;
+
+ rd_size_arg_off = (grub_uint8_t *) linux_args - (grub_uint8_t *) playground;
+ linux_args += ALIGN_UP (sizeof ("rd_size=0xXXXXXXXXXXXXXXXX"), 4);
+ *linux_argv = 0;
+ linux_argv++;
+
+ *linux_argv = 0;
+
+ extra = linux_args;
+
+#ifdef GRUB_MACHINE_MIPS_LOONGSON
+ linux_envp = extra;
+ envp_off = (grub_uint8_t *) linux_envp - (grub_uint8_t *) playground;
+ linux_envs = (char *) (linux_envp + 5);
+ grub_snprintf (linux_envs, sizeof ("memsize=XXXXXXXXXXXXXXXXXXXX"),
+ "memsize=%lld",
+ (unsigned long long) grub_mmap_get_lower () >> 20);
+ linux_envp[0] = (grub_uint8_t *) linux_envs - (grub_uint8_t *) playground
+ + target_addr;
+ linux_envs += ALIGN_UP (grub_strlen (linux_envs) + 1, 4);
+ grub_snprintf (linux_envs, sizeof ("highmemsize=XXXXXXXXXXXXXXXXXXXX"),
+ "highmemsize=%lld",
+ (unsigned long long) grub_mmap_get_upper () >> 20);
+ linux_envp[1] = (grub_uint8_t *) linux_envs - (grub_uint8_t *) playground
+ + target_addr;
+ linux_envs += ALIGN_UP (grub_strlen (linux_envs) + 1, 4);
+
+ grub_snprintf (linux_envs, sizeof ("busclock=XXXXXXXXXX"),
+ "busclock=%d", grub_arch_busclock);
+ linux_envp[2] = (grub_uint8_t *) linux_envs - (grub_uint8_t *) playground
+ + target_addr;
+ linux_envs += ALIGN_UP (grub_strlen (linux_envs) + 1, 4);
+ grub_snprintf (linux_envs, sizeof ("cpuclock=XXXXXXXXXX"),
+ "cpuclock=%d", grub_arch_cpuclock);
+ linux_envp[3] = (grub_uint8_t *) linux_envs - (grub_uint8_t *) playground
+ + target_addr;
+ linux_envs += ALIGN_UP (grub_strlen (linux_envs) + 1, 4);
+
+ linux_envp[4] = 0;
+#endif
+#endif
+
+ grub_loader_set (grub_linux_boot, grub_linux_unload, 1);
+ initrd_loaded = 0;
+ loaded = 1;
+ grub_dl_ref (my_mod);
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_size_t size = 0;
+ void *initrd_src;
+ grub_addr_t initrd_dest;
+ grub_err_t err;
+ struct grub_linux_initrd_context initrd_ctx = { 0, 0, 0 };
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ if (!loaded)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("you need to load the kernel first"));
+
+ if (initrd_loaded)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "only one initrd command can be issued.");
+
+ if (grub_initrd_init (argc, argv, &initrd_ctx))
+ goto fail;
+
+ size = grub_get_initrd_size (&initrd_ctx);
+
+ {
+ grub_relocator_chunk_t ch;
+
+ err = grub_relocator_alloc_chunk_align (relocator, &ch,
+ (target_addr & 0x1fffffff)
+ + linux_size + 0x10000,
+ (0x10000000 - size),
+ size, 0x10000,
+ GRUB_RELOCATOR_PREFERENCE_NONE, 0);
+
+ if (err)
+ goto fail;
+ initrd_src = get_virtual_current_address (ch);
+ initrd_dest = get_physical_target_address (ch) | 0x80000000;
+ }
+
+ if (grub_initrd_load (&initrd_ctx, argv, initrd_src))
+ goto fail;
+
+#ifdef GRUB_MACHINE_MIPS_QEMU_MIPS
+ {
+ char *tmp;
+ tmp = grub_xasprintf ("%s rd_start=0x%" PRIxGRUB_ADDR
+ " rd_size=0x%" PRIxGRUB_ADDR, params,
+ initrd_dest, size);
+ if (!tmp)
+ goto fail;
+ grub_free (params);
+ params = tmp;
+ }
+#else
+ grub_snprintf ((char *) playground + rd_addr_arg_off,
+ sizeof ("rd_start=0xXXXXXXXXXXXXXXXX"), "rd_start=0x%llx",
+ (unsigned long long) initrd_dest);
+ ((grub_uint32_t *) (playground + argv_off))[linux_argc]
+ = target_addr + rd_addr_arg_off;
+ linux_argc++;
+
+ grub_snprintf ((char *) playground + rd_size_arg_off,
+ sizeof ("rd_size=0xXXXXXXXXXXXXXXXXX"), "rd_size=0x%llx",
+ (unsigned long long) size);
+ ((grub_uint32_t *) (playground + argv_off))[linux_argc]
+ = target_addr + rd_size_arg_off;
+ linux_argc++;
+#endif
+
+ initrd_loaded = 1;
+
+ fail:
+ grub_initrd_close (&initrd_ctx);
+
+ return grub_errno;
+}
+
+static grub_command_t cmd_linux, cmd_initrd;
+
+GRUB_MOD_INIT(linux)
+{
+ cmd_linux = grub_register_command ("linux", grub_cmd_linux,
+ 0, N_("Load Linux."));
+ cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd,
+ 0, N_("Load initrd."));
+ my_mod = mod;
+}
+
+GRUB_MOD_FINI(linux)
+{
+ grub_unregister_command (cmd_linux);
+ grub_unregister_command (cmd_initrd);
+}
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/powerpc/ieee1275/linux.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/powerpc/ieee1275/linux.c
new file mode 100644
index 00000000..818b2a86
--- /dev/null
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/powerpc/ieee1275/linux.c
@@ -0,0 +1,393 @@
+/* linux.c - boot Linux */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2003,2004,2005,2007,2009 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see .
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define ELF32_LOADMASK (0xc0000000UL)
+#define ELF64_LOADMASK (0xc000000000000000ULL)
+
+static grub_dl_t my_mod;
+
+static int loaded;
+
+static grub_addr_t initrd_addr;
+static grub_size_t initrd_size;
+
+static grub_addr_t linux_addr;
+static grub_addr_t linux_entry;
+static grub_size_t linux_size;
+
+static char *linux_args;
+
+typedef void (*kernel_entry_t) (void *, unsigned long, int (void *),
+ unsigned long, unsigned long);
+
+/* Context for grub_linux_claimmap_iterate. */
+struct grub_linux_claimmap_iterate_ctx
+{
+ grub_addr_t target;
+ grub_size_t size;
+ grub_size_t align;
+ grub_addr_t found_addr;
+};
+
+/* Helper for grub_linux_claimmap_iterate. */
+static int
+alloc_mem (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
+ void *data)
+{
+ struct grub_linux_claimmap_iterate_ctx *ctx = data;
+
+ grub_uint64_t end = addr + len;
+ addr = ALIGN_UP (addr, ctx->align);
+ ctx->target = ALIGN_UP (ctx->target, ctx->align);
+
+ /* Target above the memory chunk. */
+ if (type != GRUB_MEMORY_AVAILABLE || ctx->target > end)
+ return 0;
+
+ /* Target inside the memory chunk. */
+ if (ctx->target >= addr && ctx->target < end &&
+ ctx->size <= end - ctx->target)
+ {
+ if (grub_claimmap (ctx->target, ctx->size) == GRUB_ERR_NONE)
+ {
+ ctx->found_addr = ctx->target;
+ return 1;
+ }
+ grub_print_error ();
+ }
+ /* Target below the memory chunk. */
+ if (ctx->target < addr && addr + ctx->size <= end)
+ {
+ if (grub_claimmap (addr, ctx->size) == GRUB_ERR_NONE)
+ {
+ ctx->found_addr = addr;
+ return 1;
+ }
+ grub_print_error ();
+ }
+ return 0;
+}
+
+static grub_addr_t
+grub_linux_claimmap_iterate (grub_addr_t target, grub_size_t size,
+ grub_size_t align)
+{
+ struct grub_linux_claimmap_iterate_ctx ctx = {
+ .target = target,
+ .size = size,
+ .align = align,
+ .found_addr = (grub_addr_t) -1
+ };
+
+ if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_FORCE_CLAIM))
+ {
+ grub_uint64_t addr = target;
+ if (addr < GRUB_IEEE1275_STATIC_HEAP_START
+ + GRUB_IEEE1275_STATIC_HEAP_LEN)
+ addr = GRUB_IEEE1275_STATIC_HEAP_START
+ + GRUB_IEEE1275_STATIC_HEAP_LEN;
+ addr = ALIGN_UP (addr, align);
+ if (grub_claimmap (addr, size) == GRUB_ERR_NONE)
+ return addr;
+ return (grub_addr_t) -1;
+ }
+
+
+ grub_machine_mmap_iterate (alloc_mem, &ctx);
+
+ return ctx.found_addr;
+}
+
+static grub_err_t
+grub_linux_boot (void)
+{
+ kernel_entry_t linuxmain;
+ grub_ssize_t actual;
+
+ grub_arch_sync_caches ((void *) linux_addr, linux_size);
+ /* Set the command line arguments. */
+ grub_ieee1275_set_property (grub_ieee1275_chosen, "bootargs", linux_args,
+ grub_strlen (linux_args) + 1, &actual);
+
+ grub_dprintf ("loader", "Entry point: 0x%x\n", linux_entry);
+ grub_dprintf ("loader", "Initrd at: 0x%x, size 0x%x\n", initrd_addr,
+ initrd_size);
+ grub_dprintf ("loader", "Boot arguments: %s\n", linux_args);
+ grub_dprintf ("loader", "Jumping to Linux...\n");
+
+ /* Boot the kernel. */
+ linuxmain = (kernel_entry_t) linux_entry;
+ linuxmain ((void *) initrd_addr, initrd_size, grub_ieee1275_entry_fn, 0, 0);
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_linux_release_mem (void)
+{
+ grub_free (linux_args);
+ linux_args = 0;
+
+ if (linux_addr && grub_ieee1275_release (linux_addr, linux_size))
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot release memory");
+
+ if (initrd_addr && grub_ieee1275_release (initrd_addr, initrd_size))
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot release memory");
+
+ linux_addr = 0;
+ initrd_addr = 0;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_linux_unload (void)
+{
+ grub_err_t err;
+
+ err = grub_linux_release_mem ();
+ grub_dl_unref (my_mod);
+
+ loaded = 0;
+
+ return err;
+}
+
+static grub_err_t
+grub_linux_load32 (grub_elf_t elf, const char *filename)
+{
+ Elf32_Addr base_addr;
+ grub_addr_t seg_addr;
+ grub_uint32_t align;
+ grub_uint32_t offset;
+ Elf32_Addr entry;
+
+ linux_size = grub_elf32_size (elf, &base_addr, &align);
+ if (linux_size == 0)
+ return grub_errno;
+ /* Pad it; the kernel scribbles over memory beyond its load address. */
+ linux_size += 0x100000;
+
+ /* Linux's entry point incorrectly contains a virtual address. */
+ entry = elf->ehdr.ehdr32.e_entry & ~ELF32_LOADMASK;
+
+ /* Linux's incorrectly contains a virtual address. */
+ base_addr &= ~ELF32_LOADMASK;
+ offset = entry - base_addr;
+
+ /* On some systems, firmware occupies the memory we're trying to use.
+ * Happily, Linux can be loaded anywhere (it relocates itself). Iterate
+ * until we find an open area. */
+ seg_addr = grub_linux_claimmap_iterate (base_addr & ~ELF32_LOADMASK, linux_size, align);
+ if (seg_addr == (grub_addr_t) -1)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY, "couldn't claim memory");
+
+ linux_entry = seg_addr + offset;
+ linux_addr = seg_addr;
+
+ /* Now load the segments into the area we claimed. */
+ return grub_elf32_load (elf, filename, (void *) (seg_addr - base_addr), GRUB_ELF_LOAD_FLAGS_30BITS, 0, 0);
+}
+
+static grub_err_t
+grub_linux_load64 (grub_elf_t elf, const char *filename)
+{
+ Elf64_Addr base_addr;
+ grub_addr_t seg_addr;
+ grub_uint64_t align;
+ grub_uint64_t offset;
+ Elf64_Addr entry;
+
+ linux_size = grub_elf64_size (elf, &base_addr, &align);
+ if (linux_size == 0)
+ return grub_errno;
+ /* Pad it; the kernel scribbles over memory beyond its load address. */
+ linux_size += 0x100000;
+
+ base_addr &= ~ELF64_LOADMASK;
+ entry = elf->ehdr.ehdr64.e_entry & ~ELF64_LOADMASK;
+ offset = entry - base_addr;
+ /* Linux's incorrectly contains a virtual address. */
+
+ /* On some systems, firmware occupies the memory we're trying to use.
+ * Happily, Linux can be loaded anywhere (it relocates itself). Iterate
+ * until we find an open area. */
+ seg_addr = grub_linux_claimmap_iterate (base_addr & ~ELF64_LOADMASK, linux_size, align);
+ if (seg_addr == (grub_addr_t) -1)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY, "couldn't claim memory");
+
+ linux_entry = seg_addr + offset;
+ linux_addr = seg_addr;
+
+ /* Now load the segments into the area we claimed. */
+ return grub_elf64_load (elf, filename, (void *) (grub_addr_t) (seg_addr - base_addr), GRUB_ELF_LOAD_FLAGS_62BITS, 0, 0);
+}
+
+static grub_err_t
+grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_elf_t elf = 0;
+ int size;
+
+ grub_dl_ref (my_mod);
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto out;
+ }
+
+ elf = grub_elf_open (argv[0], GRUB_FILE_TYPE_LINUX_KERNEL);
+ if (! elf)
+ goto out;
+
+ if (elf->ehdr.ehdr32.e_type != ET_EXEC && elf->ehdr.ehdr32.e_type != ET_DYN)
+ {
+ grub_error (GRUB_ERR_UNKNOWN_OS,
+ N_("this ELF file is not of the right type"));
+ goto out;
+ }
+
+ /* Release the previously used memory. */
+ grub_loader_unset ();
+
+ if (grub_elf_is_elf32 (elf))
+ grub_linux_load32 (elf, argv[0]);
+ else
+ if (grub_elf_is_elf64 (elf))
+ grub_linux_load64 (elf, argv[0]);
+ else
+ {
+ grub_error (GRUB_ERR_BAD_FILE_TYPE, N_("invalid arch-dependent ELF magic"));
+ goto out;
+ }
+
+ size = grub_loader_cmdline_size(argc, argv);
+ linux_args = grub_malloc (size + sizeof (LINUX_IMAGE));
+ if (! linux_args)
+ goto out;
+
+ /* Create kernel command line. */
+ grub_memcpy (linux_args, LINUX_IMAGE, sizeof (LINUX_IMAGE));
+ if (grub_create_loader_cmdline (argc, argv, linux_args + sizeof (LINUX_IMAGE) - 1,
+ size, GRUB_VERIFY_KERNEL_CMDLINE))
+ goto out;
+
+out:
+
+ if (elf)
+ grub_elf_close (elf);
+
+ if (grub_errno != GRUB_ERR_NONE)
+ {
+ grub_linux_release_mem ();
+ grub_dl_unref (my_mod);
+ loaded = 0;
+ }
+ else
+ {
+ grub_loader_set (grub_linux_boot, grub_linux_unload, 1);
+ initrd_addr = 0;
+ loaded = 1;
+ }
+
+ return grub_errno;
+}
+
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_size_t size = 0;
+ grub_addr_t first_addr;
+ grub_addr_t addr;
+ struct grub_linux_initrd_context initrd_ctx = { 0, 0, 0 };
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto fail;
+ }
+
+ if (!loaded)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("you need to load the kernel first"));
+ goto fail;
+ }
+
+ if (grub_initrd_init (argc, argv, &initrd_ctx))
+ goto fail;
+
+ size = grub_get_initrd_size (&initrd_ctx);
+
+ first_addr = linux_addr + linux_size;
+
+ /* Attempt to claim at a series of addresses until successful in
+ the same way that grub_rescue_cmd_linux does. */
+ addr = grub_linux_claimmap_iterate (first_addr, size, 0x100000);
+ if (addr == (grub_addr_t) -1)
+ goto fail;
+
+ grub_dprintf ("loader", "Loading initrd at 0x%x, size 0x%x\n", addr, size);
+
+ if (grub_initrd_load (&initrd_ctx, argv, (void *) addr))
+ goto fail;
+
+ initrd_addr = addr;
+ initrd_size = size;
+
+ fail:
+ grub_initrd_close (&initrd_ctx);
+
+ return grub_errno;
+}
+
+static grub_command_t cmd_linux, cmd_initrd;
+
+GRUB_MOD_INIT(linux)
+{
+ cmd_linux = grub_register_command ("linux", grub_cmd_linux,
+ 0, N_("Load Linux."));
+ cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd,
+ 0, N_("Load initrd."));
+ my_mod = mod;
+}
+
+GRUB_MOD_FINI(linux)
+{
+ grub_unregister_command (cmd_linux);
+ grub_unregister_command (cmd_initrd);
+}
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/sparc64/ieee1275/linux.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/sparc64/ieee1275/linux.c
new file mode 100644
index 00000000..bb47ee0c
--- /dev/null
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/sparc64/ieee1275/linux.c
@@ -0,0 +1,521 @@
+/* linux.c - boot Linux */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2003, 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see .
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_dl_t my_mod;
+
+static int loaded;
+
+/* /virtual-memory/translations property layout */
+struct grub_ieee1275_translation {
+ grub_uint64_t vaddr;
+ grub_uint64_t size;
+ grub_uint64_t data;
+};
+
+static struct grub_ieee1275_translation *of_trans;
+static int of_num_trans;
+
+static grub_addr_t phys_base;
+static grub_addr_t grub_phys_start;
+static grub_addr_t grub_phys_end;
+
+static grub_addr_t initrd_addr;
+static grub_addr_t initrd_paddr;
+static grub_size_t initrd_size;
+
+static Elf64_Addr linux_entry;
+static grub_addr_t linux_addr;
+static grub_addr_t linux_paddr;
+static grub_size_t linux_size;
+
+static char *linux_args;
+
+struct linux_bootstr_info {
+ int len, valid;
+ char buf[];
+};
+
+struct linux_hdrs {
+ /* All HdrS versions support these fields. */
+ unsigned int start_insns[2];
+ char magic[4]; /* "HdrS" */
+ unsigned int linux_kernel_version; /* LINUX_VERSION_CODE */
+ unsigned short hdrs_version;
+ unsigned short root_flags;
+ unsigned short root_dev;
+ unsigned short ram_flags;
+ unsigned int __deprecated_ramdisk_image;
+ unsigned int ramdisk_size;
+
+ /* HdrS versions 0x0201 and higher only */
+ char *reboot_command;
+
+ /* HdrS versions 0x0202 and higher only */
+ struct linux_bootstr_info *bootstr_info;
+
+ /* HdrS versions 0x0301 and higher only */
+ unsigned long ramdisk_image;
+};
+
+static grub_err_t
+grub_linux_boot (void)
+{
+ struct linux_bootstr_info *bp;
+ struct linux_hdrs *hp;
+ grub_addr_t addr;
+
+ hp = (struct linux_hdrs *) linux_addr;
+
+ /* Any pointer we dereference in the kernel image must be relocated
+ to where we actually loaded the kernel. */
+ addr = (grub_addr_t) hp->bootstr_info;
+ addr += (linux_addr - linux_entry);
+ bp = (struct linux_bootstr_info *) addr;
+
+ /* Set the command line arguments, unless the kernel has been
+ built with a fixed CONFIG_CMDLINE. */
+ if (!bp->valid)
+ {
+ int len = grub_strlen (linux_args) + 1;
+ if (bp->len < len)
+ len = bp->len;
+ grub_memcpy(bp->buf, linux_args, len);
+ bp->buf[len-1] = '\0';
+ bp->valid = 1;
+ }
+
+ if (initrd_addr)
+ {
+ /* The kernel expects the physical address, adjusted relative
+ to the lowest address advertised in "/memory"'s available
+ property.
+
+ The history of this is that back when the kernel only supported
+ specifying a 32-bit ramdisk address, this was the way to still
+ be able to specify the ramdisk physical address even if memory
+ started at some place above 4GB.
+
+ The magic 0x400000 is KERNBASE, I have no idea why SILO adds
+ that term into the address, but it does and thus we have to do
+ it too as this is what the kernel expects. */
+ hp->ramdisk_image = initrd_paddr - phys_base + 0x400000;
+ hp->ramdisk_size = initrd_size;
+ }
+
+ grub_dprintf ("loader", "Entry point: 0x%lx\n", linux_addr);
+ grub_dprintf ("loader", "Initrd at: 0x%lx, size 0x%lx\n", initrd_addr,
+ initrd_size);
+ grub_dprintf ("loader", "Boot arguments: %s\n", linux_args);
+ grub_dprintf ("loader", "Jumping to Linux...\n");
+
+ /* Boot the kernel. */
+ asm volatile ("ldx %0, %%o4\n"
+ "ldx %1, %%o6\n"
+ "ldx %2, %%o5\n"
+ "mov %%g0, %%o0\n"
+ "mov %%g0, %%o2\n"
+ "mov %%g0, %%o3\n"
+ "jmp %%o5\n"
+ "mov %%g0, %%o1\n": :
+ "m"(grub_ieee1275_entry_fn),
+ "m"(grub_ieee1275_original_stack),
+ "m"(linux_addr));
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_linux_release_mem (void)
+{
+ grub_free (linux_args);
+ linux_args = 0;
+ linux_addr = 0;
+ initrd_addr = 0;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_linux_unload (void)
+{
+ grub_err_t err;
+
+ err = grub_linux_release_mem ();
+ grub_dl_unref (my_mod);
+
+ loaded = 0;
+
+ return err;
+}
+
+#define FOUR_MB (4 * 1024 * 1024)
+
+/* Context for alloc_phys. */
+struct alloc_phys_ctx
+{
+ grub_addr_t size;
+ grub_addr_t ret;
+};
+
+/* Helper for alloc_phys. */
+static int
+alloc_phys_choose (grub_uint64_t addr, grub_uint64_t len,
+ grub_memory_type_t type, void *data)
+{
+ struct alloc_phys_ctx *ctx = data;
+ grub_addr_t end = addr + len;
+
+ if (type != GRUB_MEMORY_AVAILABLE)
+ return 0;
+
+ addr = ALIGN_UP (addr, FOUR_MB);
+ if (addr + ctx->size >= end)
+ return 0;
+
+ /* OBP available region contains grub. Start at grub_phys_end. */
+ /* grub_phys_start does not start at the beginning of the memory region */
+ if ((grub_phys_start >= addr && grub_phys_end < end) ||
+ (addr > grub_phys_start && addr < grub_phys_end))
+ {
+ addr = ALIGN_UP (grub_phys_end, FOUR_MB);
+ if (addr + ctx->size >= end)
+ return 0;
+ }
+
+ grub_dprintf("loader",
+ "addr = 0x%lx grub_phys_start = 0x%lx grub_phys_end = 0x%lx\n",
+ addr, grub_phys_start, grub_phys_end);
+
+ if (loaded)
+ {
+ grub_addr_t linux_end = ALIGN_UP (linux_paddr + linux_size, FOUR_MB);
+
+ if (addr >= linux_paddr && addr < linux_end)
+ {
+ addr = linux_end;
+ if (addr + ctx->size >= end)
+ return 0;
+ }
+ if ((addr + ctx->size) >= linux_paddr
+ && (addr + ctx->size) < linux_end)
+ {
+ addr = linux_end;
+ if (addr + ctx->size >= end)
+ return 0;
+ }
+ }
+
+ ctx->ret = addr;
+ return 1;
+}
+
+static grub_addr_t
+alloc_phys (grub_addr_t size)
+{
+ struct alloc_phys_ctx ctx = {
+ .size = size,
+ .ret = (grub_addr_t) -1
+ };
+
+ grub_machine_mmap_iterate (alloc_phys_choose, &ctx);
+
+ return ctx.ret;
+}
+
+static grub_err_t
+grub_linux_load64 (grub_elf_t elf, const char *filename)
+{
+ grub_addr_t off, paddr, base;
+ int ret;
+
+ linux_entry = elf->ehdr.ehdr64.e_entry;
+ linux_addr = 0x40004000;
+ off = 0x4000;
+ linux_size = grub_elf64_size (elf, 0, 0);
+ if (linux_size == 0)
+ return grub_errno;
+
+ grub_dprintf ("loader", "Attempting to claim at 0x%lx, size 0x%lx.\n",
+ linux_addr, linux_size);
+
+ paddr = alloc_phys (linux_size + off);
+ if (paddr == (grub_addr_t) -1)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ "couldn't allocate physical memory");
+ ret = grub_ieee1275_map (paddr, linux_addr - off,
+ linux_size + off, IEEE1275_MAP_DEFAULT);
+ if (ret)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ "couldn't map physical memory");
+
+ grub_dprintf ("loader", "Loading Linux at vaddr 0x%lx, paddr 0x%lx, size 0x%lx\n",
+ linux_addr, paddr, linux_size);
+
+ linux_paddr = paddr;
+
+ base = linux_entry - off;
+
+ /* Now load the segments into the area we claimed. */
+ return grub_elf64_load (elf, filename, (void *) (linux_addr - off - base), GRUB_ELF_LOAD_FLAGS_NONE, 0, 0);
+}
+
+static grub_err_t
+grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_file_t file = 0;
+ grub_elf_t elf = 0;
+ int size;
+
+ grub_dl_ref (my_mod);
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto out;
+ }
+
+ file = grub_file_open (argv[0], GRUB_FILE_TYPE_LINUX_KERNEL);
+ if (!file)
+ goto out;
+
+ elf = grub_elf_file (file, argv[0]);
+ if (! elf)
+ goto out;
+
+ if (elf->ehdr.ehdr32.e_type != ET_EXEC)
+ {
+ grub_error (GRUB_ERR_UNKNOWN_OS,
+ N_("this ELF file is not of the right type"));
+ goto out;
+ }
+
+ /* Release the previously used memory. */
+ grub_loader_unset ();
+
+ if (grub_elf_is_elf64 (elf))
+ grub_linux_load64 (elf, argv[0]);
+ else
+ {
+ grub_error (GRUB_ERR_BAD_FILE_TYPE, N_("invalid arch-dependent ELF magic"));
+ goto out;
+ }
+
+ size = grub_loader_cmdline_size(argc, argv);
+
+ linux_args = grub_malloc (size + sizeof (LINUX_IMAGE));
+ if (! linux_args)
+ goto out;
+
+ /* Create kernel command line. */
+ grub_memcpy (linux_args, LINUX_IMAGE, sizeof (LINUX_IMAGE));
+ if (grub_create_loader_cmdline (argc, argv, linux_args + sizeof (LINUX_IMAGE) - 1,
+ size, GRUB_VERIFY_KERNEL_CMDLINE))
+ goto out;
+
+out:
+ if (elf)
+ grub_elf_close (elf);
+ else if (file)
+ grub_file_close (file);
+
+ if (grub_errno != GRUB_ERR_NONE)
+ {
+ grub_linux_release_mem ();
+ grub_dl_unref (my_mod);
+ loaded = 0;
+ }
+ else
+ {
+ grub_loader_set (grub_linux_boot, grub_linux_unload, 1);
+ initrd_addr = 0;
+ loaded = 1;
+ }
+
+ return grub_errno;
+}
+
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_size_t size = 0;
+ grub_addr_t paddr;
+ grub_addr_t addr;
+ int ret;
+ struct grub_linux_initrd_context initrd_ctx = { 0, 0, 0 };
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto fail;
+ }
+
+ if (!loaded)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("you need to load the kernel first"));
+ goto fail;
+ }
+
+ if (grub_initrd_init (argc, argv, &initrd_ctx))
+ goto fail;
+
+ size = grub_get_initrd_size (&initrd_ctx);
+
+ addr = 0x60000000;
+
+ paddr = alloc_phys (size);
+ if (paddr == (grub_addr_t) -1)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ "couldn't allocate physical memory");
+ goto fail;
+ }
+ ret = grub_ieee1275_map (paddr, addr, size, IEEE1275_MAP_DEFAULT);
+ if (ret)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ "couldn't map physical memory");
+ goto fail;
+ }
+
+ grub_dprintf ("loader", "Loading initrd at vaddr 0x%lx, paddr 0x%lx, size 0x%lx\n",
+ addr, paddr, size);
+
+ if (grub_initrd_load (&initrd_ctx, argv, (void *) addr))
+ goto fail;
+
+ initrd_addr = addr;
+ initrd_paddr = paddr;
+ initrd_size = size;
+
+ fail:
+ grub_initrd_close (&initrd_ctx);
+
+ return grub_errno;
+}
+
+/* Helper for determine_phys_base. */
+static int
+get_physbase (grub_uint64_t addr, grub_uint64_t len __attribute__ ((unused)),
+ grub_memory_type_t type, void *data __attribute__ ((unused)))
+{
+ if (type != GRUB_MEMORY_AVAILABLE)
+ return 0;
+ if (addr < phys_base)
+ phys_base = addr;
+ return 0;
+}
+
+static void
+determine_phys_base (void)
+{
+ phys_base = ~(grub_uint64_t) 0;
+ grub_machine_mmap_iterate (get_physbase, NULL);
+}
+
+static void
+fetch_translations (void)
+{
+ grub_ieee1275_phandle_t node;
+ grub_ssize_t actual;
+ int i;
+
+ if (grub_ieee1275_finddevice ("/virtual-memory", &node))
+ {
+ grub_printf ("Cannot find /virtual-memory node.\n");
+ return;
+ }
+
+ if (grub_ieee1275_get_property_length (node, "translations", &actual))
+ {
+ grub_printf ("Cannot find /virtual-memory/translations size.\n");
+ return;
+ }
+
+ of_trans = grub_malloc (actual);
+ if (!of_trans)
+ {
+ grub_printf ("Cannot allocate translations buffer.\n");
+ return;
+ }
+
+ if (grub_ieee1275_get_property (node, "translations", of_trans, actual, &actual))
+ {
+ grub_printf ("Cannot fetch /virtual-memory/translations property.\n");
+ return;
+ }
+
+ of_num_trans = actual / sizeof(struct grub_ieee1275_translation);
+
+ for (i = 0; i < of_num_trans; i++)
+ {
+ struct grub_ieee1275_translation *p = &of_trans[i];
+
+ if (p->vaddr == 0x2000)
+ {
+ grub_addr_t phys, tte = p->data;
+
+ phys = tte & ~(0xff00000000001fffULL);
+
+ grub_phys_start = phys;
+ grub_phys_end = grub_phys_start + p->size;
+ grub_dprintf ("loader", "Grub lives at phys_start[%lx] phys_end[%lx]\n",
+ (unsigned long) grub_phys_start,
+ (unsigned long) grub_phys_end);
+ break;
+ }
+ }
+}
+
+
+static grub_command_t cmd_linux, cmd_initrd;
+
+GRUB_MOD_INIT(linux)
+{
+ determine_phys_base ();
+ fetch_translations ();
+
+ cmd_linux = grub_register_command ("linux", grub_cmd_linux,
+ 0, N_("Load Linux."));
+ cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd,
+ 0, N_("Load initrd."));
+ my_mod = mod;
+}
+
+GRUB_MOD_FINI(linux)
+{
+ grub_unregister_command (cmd_linux);
+ grub_unregister_command (cmd_initrd);
+}
diff --git a/GRUB2/MOD_SRC/grub-2.04/include/grub/linux.h b/GRUB2/MOD_SRC/grub-2.04/include/grub/linux.h
new file mode 100644
index 00000000..594a3f30
--- /dev/null
+++ b/GRUB2/MOD_SRC/grub-2.04/include/grub/linux.h
@@ -0,0 +1,24 @@
+#include
+
+struct grub_linux_initrd_component;
+
+struct grub_linux_initrd_context
+{
+ int nfiles;
+ struct grub_linux_initrd_component *components;
+ grub_size_t size;
+};
+
+grub_err_t
+grub_initrd_init (int argc, char *argv[],
+ struct grub_linux_initrd_context *ctx);
+
+grub_size_t
+grub_get_initrd_size (struct grub_linux_initrd_context *ctx);
+
+void
+grub_initrd_close (struct grub_linux_initrd_context *initrd_ctx);
+
+grub_err_t
+grub_initrd_load (struct grub_linux_initrd_context *initrd_ctx,
+ char *argv[], void *target);