fish

3 files changed, 329 insertions, 0 deletions

diff --git a/grub-core/kern/i386/coreboot/init.c b/grub-core/kern/i386/coreboot/init.c
new file mode 100644
index 0000000..434b9b5
--- /dev/null
+++ b/grub-core/kern/i386/coreboot/init.c
@@ -0,0 +1,132 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009  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 <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/kernel.h>
+#include <grub/mm.h>
+#include <grub/machine/time.h>
+#include <grub/machine/memory.h>
+#include <grub/machine/console.h>
+#include <grub/offsets.h>
+#include <grub/types.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/loader.h>
+#include <grub/env.h>
+#include <grub/cache.h>
+#include <grub/time.h>
+#include <grub/symbol.h>
+#include <grub/cpu/io.h>
+#include <grub/cpu/floppy.h>
+#include <grub/cpu/tsc.h>
+#ifdef GRUB_MACHINE_QEMU
+#include <grub/machine/kernel.h>
+#endif
+
+extern char _start[];
+extern char _end[];
+
+grub_uint32_t
+grub_get_rtc (void)
+{
+  grub_fatal ("grub_get_rtc() is not implemented.\n");
+}
+
+void
+grub_exit (void)
+{
+  /* We can't use grub_fatal() in this function.  This would create an infinite
+     loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit().  */
+  while (1)
+    grub_cpu_idle ();
+}
+
+void
+grub_machine_init (void)
+{
+#ifdef GRUB_MACHINE_QEMU
+  grub_qemu_init_cirrus ();
+#endif
+  /* Initialize the console as early as possible.  */
+  grub_vga_text_init ();
+
+  auto int NESTED_FUNC_ATTR heap_init (grub_uint64_t, grub_uint64_t, 
+				       grub_memory_type_t);
+  int NESTED_FUNC_ATTR heap_init (grub_uint64_t addr, grub_uint64_t size,
+				  grub_memory_type_t type)
+  {
+#if GRUB_CPU_SIZEOF_VOID_P == 4
+    /* Restrict ourselves to 32-bit memory space.  */
+    if (addr > GRUB_ULONG_MAX)
+      return 0;
+    if (addr + size > GRUB_ULONG_MAX)
+      size = GRUB_ULONG_MAX - addr;
+#endif
+
+    if (type != GRUB_MEMORY_AVAILABLE)
+      return 0;
+
+    /* Avoid the lower memory.  */
+    if (addr < GRUB_MEMORY_MACHINE_LOWER_SIZE)
+      {
+	if (addr + size <= GRUB_MEMORY_MACHINE_LOWER_SIZE)
+	  return 0;
+	else
+	  {
+	    size -= GRUB_MEMORY_MACHINE_LOWER_SIZE - addr;
+	    addr = GRUB_MEMORY_MACHINE_LOWER_SIZE;
+	  }
+      }
+
+    grub_mm_init_region ((void *) (grub_addr_t) addr, (grub_size_t) size);
+
+    return 0;
+  }
+
+#if defined (GRUB_MACHINE_MULTIBOOT) || defined (GRUB_MACHINE_QEMU)
+  grub_machine_mmap_init ();
+#endif
+  grub_machine_mmap_iterate (heap_init);
+
+  grub_tsc_init ();
+}
+
+void
+grub_machine_set_prefix (void)
+{
+  /* Initialize the prefix.  */
+  grub_env_set ("prefix", grub_prefix);
+}
+
+void
+grub_machine_fini (void)
+{
+  grub_vga_text_fini ();
+  grub_stop_floppy ();
+}
+
+/* Return the end of the core image.  */
+grub_addr_t
+grub_arch_modules_addr (void)
+{
+#ifdef GRUB_MACHINE_QEMU
+  return grub_core_entry_addr + grub_kernel_image_size;
+#else
+  return ALIGN_UP((grub_addr_t) _end, GRUB_KERNEL_MACHINE_MOD_ALIGN);
+#endif
+}
diff --git a/grub-core/kern/i386/coreboot/mmap.c b/grub-core/kern/i386/coreboot/mmap.c
new file mode 100644
index 0000000..8b0b202
--- /dev/null
+++ b/grub-core/kern/i386/coreboot/mmap.c
@@ -0,0 +1,108 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2007,2008  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 <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/machine/memory.h>
+#include <grub/machine/lbio.h>
+#include <grub/types.h>
+#include <grub/err.h>
+#include <grub/misc.h>
+
+static grub_err_t
+grub_linuxbios_table_iterate (int (*hook) (grub_linuxbios_table_item_t))
+{
+  grub_linuxbios_table_header_t table_header;
+  grub_linuxbios_table_item_t table_item;
+
+  auto int check_signature (grub_linuxbios_table_header_t);
+  int check_signature (grub_linuxbios_table_header_t tbl_header)
+  {
+    if (! grub_memcmp (tbl_header->signature, "LBIO", 4))
+      return 1;
+
+    return 0;
+  }
+
+  /* Assuming table_header is aligned to its size (8 bytes).  */
+
+  for (table_header = (grub_linuxbios_table_header_t) 0x500;
+       table_header < (grub_linuxbios_table_header_t) 0x1000; table_header++)
+    if (check_signature (table_header))
+      goto signature_found;
+
+  for (table_header = (grub_linuxbios_table_header_t) 0xf0000;
+       table_header < (grub_linuxbios_table_header_t) 0x100000; table_header++)
+    if (check_signature (table_header))
+      goto signature_found;
+
+  grub_fatal ("Could not find coreboot table\n");
+
+signature_found:
+
+  table_item =
+    (grub_linuxbios_table_item_t) ((long) table_header +
+			       (long) table_header->size);
+  for (; table_item->size;
+       table_item = (grub_linuxbios_table_item_t) ((long) table_item + (long) table_item->size))
+    {
+      if (table_item->tag == GRUB_LINUXBIOS_MEMBER_LINK
+         && check_signature ((grub_linuxbios_table_header_t) (grub_addr_t)
+                             *(grub_uint64_t *) (table_item + 1)))
+       {
+         table_header = (grub_linuxbios_table_header_t) (grub_addr_t)
+           *(grub_uint64_t *) (table_item + 1);
+         goto signature_found;   
+       }
+      if (hook (table_item))
+       return 1;
+    }
+
+  return 0;
+}
+
+grub_err_t
+grub_machine_mmap_iterate (grub_memory_hook_t hook)
+{
+  mem_region_t mem_region;
+
+  auto int iterate_linuxbios_table (grub_linuxbios_table_item_t);
+  int iterate_linuxbios_table (grub_linuxbios_table_item_t table_item)
+  {
+    if (table_item->tag != GRUB_LINUXBIOS_MEMBER_MEMORY)
+      return 0;
+
+    mem_region =
+      (mem_region_t) ((long) table_item +
+				 sizeof (struct grub_linuxbios_table_item));
+    while ((long) mem_region < (long) table_item + (long) table_item->size)
+      {
+	if (hook (mem_region->addr, mem_region->size,
+		  /* Multiboot mmaps match with the coreboot mmap definition.
+		     Therefore, we can just pass type through.  */
+		  mem_region->type))
+	  return 1;
+
+	mem_region++;
+      }
+
+    return 0;
+  }
+
+  grub_linuxbios_table_iterate (iterate_linuxbios_table);
+
+  return 0;
+}
diff --git a/grub-core/kern/i386/coreboot/startup.S b/grub-core/kern/i386/coreboot/startup.S
new file mode 100644
index 0000000..cac023d
--- /dev/null
+++ b/grub-core/kern/i386/coreboot/startup.S
@@ -0,0 +1,89 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 1999,2000,2001,2002,2003,2005,2006,2007,2008 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+/* For stack parameters.  */
+#include <grub/i386/pc/memory.h>
+#include <grub/machine/memory.h>
+#include <grub/cpu/linux.h>
+#include <grub/offsets.h>
+#include <multiboot.h>
+#include <multiboot2.h>
+
+/*
+ * Note: GRUB is compiled with the options -mrtd and -mregparm=3.
+ *       So the first three arguments are passed in %eax, %edx, and %ecx,
+ *       respectively, and if a function has a fixed number of arguments
+ *       and the number if greater than three, the function must return
+ *       with "ret $N" where N is ((the number of arguments) - 3) * 4.
+ */
+
+	.file	"startup.S"
+	.text
+	.globl	start, _start
+start:
+_start:
+	jmp codestart
+
+	/*
+	 *  This is a special data area at a fixed offset from the beginning.
+	 */
+
+	. = _start + GRUB_KERNEL_MACHINE_PREFIX
+
+VARIABLE(grub_prefix)
+	/* to be filled by grub-mkimage */
+
+	/*
+	 *  Leave some breathing room for the prefix.
+	 */
+
+	. = _start + GRUB_KERNEL_MACHINE_PREFIX_END
+
+/*
+ *  Support for booting GRUB from a Multiboot boot loader (e.g. GRUB itself).
+ */
+	.p2align	2	/* force 4-byte alignment */
+multiboot_header:
+	/* magic */
+	.long	0x1BADB002
+	/* flags */
+	.long	MULTIBOOT_MEMORY_INFO
+	/* checksum */
+	.long	-0x1BADB002 - MULTIBOOT_MEMORY_INFO
+
+codestart:
+#ifdef GRUB_MACHINE_MULTIBOOT
+	cmpl	$MULTIBOOT_BOOTLOADER_MAGIC, %eax
+	jne 0f
+	movl	%ebx, EXT_C(startup_multiboot_info)
+0:
+#endif
+
+	/* initialize the stack */
+	movl $GRUB_MEMORY_MACHINE_PROT_STACK, %esp
+
+	/* jump to the main body of C code */
+	jmp EXT_C(grub_main)
+
+/*
+ *  prot_to_real and associated structures (but NOT real_to_prot, that is
+ *  only needed for BIOS gates).
+ */
+#include "../realmode.S"
+