Reenable qemu-mips port.

* configure.ac: Handle --target=qemu-mips and --target=qemu_mips.
	Fix small arc bug while on it.
	* gentpl.py: Handle qemu_mips.
	* grub-core/Makefile.am: Likewise.
	* grub-core/Makefile.core.def: Likewise.
	* grub-core/disk/ata.c [GRUB_MACHINE_MIPS_QEMU_MIPS]: Remove
	inappropriate includes.
	(grub_ata_pciinit) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Removed.
	(grub_ata_initialize): [GRUB_MACHINE_MIPS_QEMU_MIPS]: Rewritten.
	* grub-core/kern/main.c (grub_modules_get_end)
	[GRUB_MACHINE_MIPS_QEMU_MIPS]: Enable.
	* grub-core/kern/mips/qemu-mips: Moved to ..
	* grub-core/kern/mips/qemu_mips: ... this.
	* grub-core/kern/mips/qemu_mips/init.c (grub_get_rtc): Removed.
	(grub_machine_init): Call terminfo_init and serial_init.
	* grub-core/kern/mips/startup.S: Change MIPS_LOONGSON to MACHINE.
	* grub-core/loader/mips/linux.c (params) [GRUB_MACHINE_MIPS_QEMU_MIPS]:
	New variable.
	(grub_linux_boot) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Handle the qemu-mips
	parameter passing.
	(grub_linux_unload) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Free params.
	(grub_cmd_linux) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Handle params.
	(grub_cmd_initrd) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Likewise.
	* include/grub/mips/qemu_mips/cmos.h: New file.
	* include/grub/mips/qemu-mips/kernel.h: Don't include cpu/kernel.h.
	* include/grub/mips/qemu-mips/memory.h (grub_machine_mmap_iterate):
	Removed.
	* include/grub/mips/qemu-mips/serial.h (GRUB_MACHINE_SERIAL_PORTS):
	Use correct mips-style address.
	* include/grub/mips/qemu-mips/time.h: Include cpu/time.h.
	(GRUB_TICKS_PER_SECOND): Removed.
	(grub_get_rtc): Likewise.
	(grub_cpu_idle): Likewise.
	* include/grub/offsets.h (GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR):
	New definition.
	(GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN): Likewise.
	(GRUB_KERNEL_MIPS_QEMU_MIPS_COMPRESSED_SIZE): Likewise.
	(GRUB_KERNEL_MIPS_QEMU_MIPS_UNCOMPRESSED_SIZE): Likewise.
	(GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE): Likewise.
	(GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX): Likewise.
	(GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX_END): Likewise.
	(GRUB_KERNEL_MIPS_QEMU_MIPS_MOD_ALIGN): Likewise.
	* util/grub-mkimage.c (image_targets): Add mipsel-qemu_mips-elf.

ChangeLog

@@ -1,3 +1,51 @@
+2011-05-17  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	Reenable qemu-mips port.
+
+	* configure.ac: Handle --target=qemu-mips and --target=qemu_mips.
+	Fix small arc bug while on it.
+	* gentpl.py: Handle qemu_mips.
+	* grub-core/Makefile.am: Likewise.
+	* grub-core/Makefile.core.def: Likewise.
+	* grub-core/disk/ata.c [GRUB_MACHINE_MIPS_QEMU_MIPS]: Remove
+	inappropriate includes.
+	(grub_ata_pciinit) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Removed.
+	(grub_ata_initialize): [GRUB_MACHINE_MIPS_QEMU_MIPS]: Rewritten.
+	* grub-core/kern/main.c (grub_modules_get_end)
+	[GRUB_MACHINE_MIPS_QEMU_MIPS]: Enable.
+	* grub-core/kern/mips/qemu-mips: Moved to ..
+	* grub-core/kern/mips/qemu_mips: ... this.
+	* grub-core/kern/mips/qemu_mips/init.c (grub_get_rtc): Removed.
+	(grub_machine_init): Call terminfo_init and serial_init.
+	* grub-core/kern/mips/startup.S: Change MIPS_LOONGSON to MACHINE.
+	* grub-core/loader/mips/linux.c (params) [GRUB_MACHINE_MIPS_QEMU_MIPS]:
+	New variable.
+	(grub_linux_boot) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Handle the qemu-mips
+	parameter passing.
+	(grub_linux_unload) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Free params.
+	(grub_cmd_linux) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Handle params.
+	(grub_cmd_initrd) [GRUB_MACHINE_MIPS_QEMU_MIPS]: Likewise.
+	* include/grub/mips/qemu_mips/cmos.h: New file.
+	* include/grub/mips/qemu-mips/kernel.h: Don't include cpu/kernel.h.
+	* include/grub/mips/qemu-mips/memory.h (grub_machine_mmap_iterate):
+	Removed.
+	* include/grub/mips/qemu-mips/serial.h (GRUB_MACHINE_SERIAL_PORTS):
+	Use correct mips-style address.
+	* include/grub/mips/qemu-mips/time.h: Include cpu/time.h.
+	(GRUB_TICKS_PER_SECOND): Removed.
+	(grub_get_rtc): Likewise.
+	(grub_cpu_idle): Likewise.
+	* include/grub/offsets.h (GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR):
+	New definition.
+	(GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN): Likewise.
+	(GRUB_KERNEL_MIPS_QEMU_MIPS_COMPRESSED_SIZE): Likewise.
+	(GRUB_KERNEL_MIPS_QEMU_MIPS_UNCOMPRESSED_SIZE): Likewise.
+	(GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE): Likewise.
+	(GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX): Likewise.
+	(GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX_END): Likewise.
+	(GRUB_KERNEL_MIPS_QEMU_MIPS_MOD_ALIGN): Likewise.
+	* util/grub-mkimage.c (image_targets): Add mipsel-qemu_mips-elf.
+
 2011-05-17  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	SGI ARCS port.

configure.ac

@@ -124,7 +124,8 @@ case "$target_cpu"-"$platform" in
   powerpc-ieee1275) ;;
   sparc64-ieee1275) ;;
   ia64-efi) ;;
-  mips-qemu-mips) ;;
+  mips-qemu_mips) ;;
+  mips-qemu-mips) platform=qemu_mips;;
   mips-yeeloong) platform=loongson ;;
   mips-fuloong) platform=loongson ;;
   mips-loongson) ;;
@@ -162,8 +163,8 @@ case "$platform" in
   pc)		machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_PCBIOS=1" ;;
   emu)		machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_EMU=1" ;;
   loongson)	machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_LOONGSON=1 -DGRUB_MACHINE_MIPS_BONITO=1" ;;
-  qemu-mips)	machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_QEMU_MIPS=1 -DGRUB_MACHINE_MIPS_BONITO=1" ;;
+  qemu_mips)	machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_QEMU_MIPS=1 -DGRUB_MACHINE_MIPS_BONITO=1" ;;
-  mips-arc)	machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_ARC=1 -DGRUB_MACHINE_ARC=1" ;;
+  arc)	machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_ARC=1" ;;
 esac
 case "$target_cpu" in
   mips)      	machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS=1" ;;

gentpl.py

@@ -7,7 +7,8 @@
 GRUB_PLATFORMS = [ "emu", "i386_pc", "i386_efi", "i386_qemu", "i386_coreboot",
                    "i386_multiboot", "i386_ieee1275", "x86_64_efi",
                    "mips_loongson", "sparc64_ieee1275",
-                   "powerpc_ieee1275", "mips_arc", "ia64_efi" ]
+                   "powerpc_ieee1275", "mips_arc", "ia64_efi",
+                   "mips_qemu_mips" ]
 
 GROUPS = {}
 
@@ -17,7 +18,7 @@ GROUPS["common"]   = GRUB_PLATFORMS[:]
 GROUPS["i386"]     = [ "i386_pc", "i386_efi", "i386_qemu", "i386_coreboot", "i386_multiboot", "i386_ieee1275" ]
 GROUPS["x86_64"]   = [ "x86_64_efi" ]
 GROUPS["x86"]      = GROUPS["i386"] + GROUPS["x86_64"]
-GROUPS["mips"]     = [ "mips_loongson", "mips_arc" ]
+GROUPS["mips"]     = [ "mips_loongson", "mips_qemu_mips", "mips_arc" ]
 GROUPS["sparc64"]  = [ "sparc64_ieee1275" ]
 GROUPS["powerpc"]  = [ "powerpc_ieee1275" ]
 
@@ -29,7 +30,7 @@ GROUPS["ieee1275"]   = [ "i386_ieee1275", "sparc64_ieee1275", "powerpc_ieee1275"
 GROUPS["noemu"]   = GRUB_PLATFORMS[:]; GROUPS["noemu"].remove("emu")
 
 # Groups based on hardware features
-GROUPS["cmos"] = GROUPS["x86"][:] + ["mips_loongson"]; GROUPS["cmos"].remove("i386_efi"); GROUPS["cmos"].remove("x86_64_efi")
+GROUPS["cmos"] = GROUPS["x86"][:] + ["mips_loongson", "mips_qemu_mips"]; GROUPS["cmos"].remove("i386_efi"); GROUPS["cmos"].remove("x86_64_efi")
 GROUPS["pci"]      = GROUPS["x86"] + ["mips_loongson"]
 GROUPS["usb"]      = GROUPS["pci"]
 
@@ -39,7 +40,7 @@ GROUPS["videomodules"]   = GRUB_PLATFORMS[:];
 for i in GROUPS["videoinkernel"]: GROUPS["videomodules"].remove(i)
 
 # Similar for terminfo
-GROUPS["terminfoinkernel"] = ["mips_loongson", "mips_arc"] + GROUPS["ieee1275"];
+GROUPS["terminfoinkernel"] = ["mips_loongson", "mips_arc", "mips_qemu_mips" ] + GROUPS["ieee1275"];
 GROUPS["terminfomodule"]   = GRUB_PLATFORMS[:];
 for i in GROUPS["terminfoinkernel"]: GROUPS["terminfomodule"].remove(i)
 

grub-core/Makefile.am

@@ -140,6 +140,10 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/extcmd.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/arc/arc.h
 endif
 
+if COND_mips_qemu_mips
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/extcmd.h
+endif
+
 if COND_mips_loongson
 KERNEL_HEADER_FILES += $(top_builddir)/include/grub/keyboard_layouts.h
 KERNEL_HEADER_FILES += $(top_builddir)/include/grub/machine/kernel.h
@@ -160,6 +164,11 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/extcmd.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/lib/arg.h
 endif
 
+if COND_mips_qemu_mips
+KERNEL_HEADER_FILES += $(top_builddir)/include/grub/machine/memory.h
+KERNEL_HEADER_FILES += $(top_builddir)/include/grub/machine/kernel.h
+endif
+
 if COND_powerpc_ieee1275
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/ieee1275/ieee1275.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/terminfo.h

grub-core/Makefile.core.def

@@ -42,6 +42,7 @@ kernel = {
   powerpc_ieee1275_ldflags = '-Wl,-Ttext,0x200000';
   sparc64_ieee1275_ldflags = '-Wl,-Ttext,0x4400';
   mips_arc_ldflags    = '-Wl,-Ttext,0x8a000000';
+  mips_qemu_mips_ldflags    = '-Wl,-Ttext,0x80200000';
 
   mips_loongson_cppflags = '-DUSE_ASCII_FAILBACK';
   i386_qemu_cppflags     = '-DGRUB_BOOT_MACHINE_LINK_ADDR=$(GRUB_BOOT_MACHINE_LINK_ADDR)';
@@ -152,6 +153,10 @@ kernel = {
   mips = kern/mips/dl.c;
   mips = kern/mips/init.c;
 
+  mips_qemu_mips = kern/mips/qemu_mips/init.c;
+  mips_qemu_mips = term/ns8250.c;
+  mips_qemu_mips = term/serial.c;
+
   mips_arc = kern/mips/arc/init.c;
   mips_arc = term/arc/console.c;
   mips_arc = disk/arc/arcdisk.c;
@@ -318,6 +323,7 @@ image = {
 
   objcopyflags = '-O binary';
   mips_loongson_ldflags = '-static-libgcc -Wl,-Ttext,0x80100000';
+  mips_qemu_mips_ldflags = '-static-libgcc -Wl,-Ttext,0x80100000';
   mips_arc_ldflags = '-static-libgcc -Wl,-Ttext,0x89f00000';
   ldadd = '-lgcc';
   cflags = '-static-libgcc';
@@ -333,6 +339,7 @@ image = {
 
   objcopyflags = '-O binary';
   mips_loongson_ldflags = '-static-libgcc -Wl,-Ttext,0x80100000';
+  mips_qemu_mips_ldflags = '-static-libgcc -Wl,-Ttext,0x80100000';
   mips_arc_ldflags = '-static-libgcc -Wl,-Ttext,0x89f00000';
   ldadd = '-lgcc';
   cflags = '-static-libgcc';
@@ -849,12 +856,14 @@ module = {
   name = ata;
   common = disk/ata.c;
   enable = pci;
+  enable = mips_qemu_mips;
 };
 
 module = {
   name = ata_pthru;
   common = disk/ata_pthru.c;
   enable = pci;
+  enable = mips_qemu_mips;
 };
 
 module = {

grub-core/disk/ata.c

@@ -22,9 +22,13 @@
 #include <grub/disk.h>
 #include <grub/mm.h>
 #include <grub/time.h>
+#ifndef GRUB_MACHINE_MIPS_QEMU_MIPS
 #include <grub/pci.h>
-#include <grub/scsi.h>
 #include <grub/cs5536.h>
+#else
+#define GRUB_MACHINE_PCI_IO_BASE  0xb4000000
+#endif
+#include <grub/scsi.h>
 
 GRUB_MOD_LICENSE ("GPLv3+");
 
@@ -409,6 +413,7 @@ grub_ata_device_initialize (int port, int device, int addr, int addr2)
   return 0;
 }
 
+#ifndef GRUB_MACHINE_MIPS_QEMU_MIPS
 static int NESTED_FUNC_ATTR
 grub_ata_pciinit (grub_pci_device_t dev,
 		  grub_pci_id_t pciid)
@@ -524,6 +529,21 @@ grub_ata_initialize (void)
   grub_pci_iterate (grub_ata_pciinit);
   return 0;
 }
+#else
+static grub_err_t
+grub_ata_initialize (void)
+{
+  int i;
+  for (i = 0; i < 2; i++)
+    {
+      grub_ata_device_initialize (i, 0, grub_ata_ioaddress[i],
+				  grub_ata_ioaddress2[i]);
+      grub_ata_device_initialize (i, 1, grub_ata_ioaddress[i],
+				  grub_ata_ioaddress2[i]);
+    }
+  return 0;
+}
+#endif
 
 static void
 grub_ata_setlba (struct grub_ata_device *dev, grub_disk_addr_t sector,

grub-core/kern/main.c

@@ -54,7 +54,7 @@ grub_module_iterate (int (*hook) (struct grub_module_header *header))
 }
 
 /* This is actualy platform-independant but used only on loongson and sparc.  */
-#if defined (GRUB_MACHINE_MIPS_LOONGSON) || defined (GRUB_MACHINE_SPARC64)
+#if defined (GRUB_MACHINE_MIPS_LOONGSON) || defined (GRUB_MACHINE_MIPS_QEMU_MIPS) || defined (GRUB_MACHINE_SPARC64)
 grub_addr_t
 grub_modules_get_end (void)
 {

grub-core/kern/mips/qemu_mips/init.c

@@ -6,25 +6,31 @@
 #include <grub/misc.h>
 #include <grub/mm.h>
 #include <grub/time.h>
-#include <grub/machine/kernel.h>
 #include <grub/machine/memory.h>
-#include <grub/cpu/kernel.h>
+#include <grub/cpu/memory.h>
+#include <grub/memory.h>
 
 #define RAMSIZE (*(grub_uint32_t *) ((16 << 20) - 264))
 
-grub_uint32_t
+extern void grub_serial_init (void);
-grub_get_rtc (void)
+extern void grub_terminfo_init (void);
-{
-  static int calln = 0;
-  return calln++;
-}
 
 void
 grub_machine_init (void)
 {
-  grub_mm_init_region ((void *) GRUB_MACHINE_MEMORY_USABLE,
+  grub_addr_t modend;
-		       RAMSIZE - (GRUB_MACHINE_MEMORY_USABLE & 0x7fffffff));
+
+  /* FIXME: measure this.  */
+  grub_arch_cpuclock = 64000000;
+
+  modend = grub_modules_get_end ();
+  grub_mm_init_region ((void *) modend, RAMSIZE
+		       - (modend - GRUB_ARCH_LOWMEMVSTART));
+
   grub_install_get_time_ms (grub_rtc_get_time_ms);
+
+  grub_terminfo_init ();
+  grub_serial_init ();
 }
 
 void

grub-core/kern/mips/startup.S

@@ -36,7 +36,7 @@ start:
 	bal cont
 	 nop
 
-	. = _start + GRUB_KERNEL_MIPS_LOONGSON_TOTAL_MODULE_SIZE
+	. = _start + GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE
 total_module_size:
 	.long 0
 

grub-core/loader/mips/linux.c

@@ -27,6 +27,7 @@
 #include <grub/mips/relocator.h>
 #include <grub/memory.h>
 #include <grub/i18n.h>
+#include <grub/lib/cmdline.h>
 
 GRUB_MOD_LICENSE ("GPLv3+");
 
@@ -53,12 +54,16 @@ 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
@@ -66,8 +71,26 @@ 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;
+
+    err = grub_relocator_alloc_chunk_addr (relocator, &ch,
+					   ((16 << 20) - 256),
+					   grub_strlen (params) + 1);
+    if (err)
+      return err;
+    grub_strcpy (get_virtual_current_address (ch), 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
@@ -76,6 +99,7 @@ grub_linux_boot (void)
   state.gpr[6] = 0;
 #endif
   state.gpr[7] = 0;
+#endif
   state.jumpreg = 1;
   grub_relocator32_boot (relocator, state);
 
@@ -88,6 +112,11 @@ 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;
@@ -207,11 +236,13 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
 		int argc, char *argv[])
 {
   grub_elf_t elf = 0;
-  int i;
   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;
@@ -236,6 +267,9 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
   grub_loader_unset ();
   loaded = 0;
 
+#ifdef GRUB_MACHINE_MIPS_QEMU_MIPS
+  size = 0;
+#else
   /* For arguments.  */
   linux_argc = argc;
 #ifdef GRUB_MACHINE_MIPS_LOONGSON
@@ -268,6 +302,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
     + 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, &extra, size);
@@ -282,6 +317,20 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
   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);
+#else
   linux_argv = extra;
   argv_off = (grub_uint8_t *) linux_argv - (grub_uint8_t *) playground;
   extra = linux_argv + (linux_argc + 1 + 2);
@@ -362,6 +411,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
   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);
@@ -425,6 +475,21 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
       return grub_errno;
     }
 
+#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)
+      {
+	grub_file_close (file);
+	return grub_errno;
+      }
+    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);
@@ -438,6 +503,7 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
   ((grub_uint32_t *) (playground + argv_off))[linux_argc]
     = target_addr + rd_size_arg_off;
   linux_argc++;
+#endif
 
   initrd_loaded = 1;
 

include/grub/mips/qemu_mips/cmos.h

@@ -0,0 +1,28 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 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/>.
+ */
+
+#ifndef	GRUB_CPU_CMOS_H
+#define	GRUB_CPU_CMOS_H	1
+
+#include <grub/types.h>
+#include <grub/cpu/io.h>
+
+#define GRUB_CMOS_ADDR_REG	0xb4000070
+#define GRUB_CMOS_DATA_REG	0xb4000071
+
+#endif /* GRUB_CPU_CMOS_H */

include/grub/mips/qemu_mips/kernel.h

@@ -20,7 +20,6 @@
 #define GRUB_KERNEL_MACHINE_HEADER	1
 
 #include <grub/symbol.h>
-#include <grub/cpu/kernel.h>
 
 #ifndef ASM_FILE
 

include/grub/mips/qemu_mips/memory.h

@@ -29,11 +29,6 @@
 #define GRUB_MACHINE_MEMORY_USABLE       0x81000000
 
 #ifndef ASM_FILE
-grub_err_t EXPORT_FUNC (grub_machine_mmap_iterate)
-(int NESTED_FUNC_ATTR (*hook) (grub_uint64_t, grub_uint64_t, grub_uint32_t));
-grub_err_t EXPORT_FUNC(grub_machine_mmap_iterate)
-     (int NESTED_FUNC_ATTR (*hook) (grub_uint64_t, grub_uint64_t, grub_uint32_t));
-
 static inline grub_err_t
 grub_machine_mmap_register (grub_uint64_t start __attribute__ ((unused)),
 			    grub_uint64_t size __attribute__ ((unused)),

include/grub/mips/qemu_mips/serial.h

@@ -19,6 +19,6 @@
 #ifndef GRUB_MACHINE_SERIAL_HEADER
 #define GRUB_MACHINE_SERIAL_HEADER	1
 
-#define GRUB_MACHINE_SERIAL_PORTS { 0x140003f8 }
+#define GRUB_MACHINE_SERIAL_PORTS { 0xb40003f8 }
 
 #endif 

include/grub/mips/qemu_mips/time.h

@@ -20,15 +20,6 @@
 #define KERNEL_MACHINE_TIME_HEADER	1
 
 #include <grub/symbol.h>
-
+#include <grub/cpu/time.h>
-#define GRUB_TICKS_PER_SECOND	1000
-
-/* Return the real time in ticks.  */
-grub_uint32_t EXPORT_FUNC (grub_get_rtc) (void);
-
-static inline void
-grub_cpu_idle(void)
-{
-}
 
 #endif /* ! KERNEL_MACHINE_TIME_HEADER */

include/grub/offsets.h

@@ -111,6 +111,14 @@
 #define GRUB_KERNEL_MIPS_LOONGSON_PREFIX	        0x0c
 #define GRUB_KERNEL_MIPS_LOONGSON_PREFIX_END	        0x54
 
+#define GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR         0x80200000
+#define GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN  32
+#define GRUB_KERNEL_MIPS_QEMU_MIPS_COMPRESSED_SIZE          0x8
+#define GRUB_KERNEL_MIPS_QEMU_MIPS_UNCOMPRESSED_SIZE        0xc
+#define GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE	0x08
+#define GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX	        0x0c
+#define GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX_END	        0x54
+
 #define GRUB_KERNEL_MIPS_ARC_LINK_ADDR         0x8a000000
 
 #define GRUB_KERNEL_MIPS_ARC_LINK_ALIGN  32
@@ -163,6 +171,7 @@
 
 #define GRUB_KERNEL_MIPS_LOONGSON_MOD_ALIGN 0x1
 #define GRUB_KERNEL_MIPS_ARC_MOD_ALIGN 0x1
+#define GRUB_KERNEL_MIPS_QEMU_MIPS_MOD_ALIGN 0x1
 
 /* Minimal gap between _end and the start of the modules.  It's a hack
    for PowerMac to prevent "CLAIM failed" error.  The real fix is to

util/grub-mkimage.c

@@ -442,6 +442,28 @@ struct image_target_desc image_targets[] =
       .link_align = GRUB_KERNEL_MIPS_ARC_LINK_ALIGN,
       .default_compression = COMPRESSION_NONE
     },
+    {
+      .dirname = "mips-qemu_mips",
+      .names = { "mipsel-qemu_mips-elf", NULL },
+      .voidp_sizeof = 4,
+      .bigendian = 0,
+      .id = IMAGE_LOONGSON_ELF, 
+      .flags = PLATFORM_FLAGS_DECOMPRESSORS,
+      .prefix = GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX,
+      .prefix_end = GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX_END,
+      .raw_size = 0,
+      .total_module_size = GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE,
+      .compressed_size = TARGET_NO_FIELD,
+      .kernel_image_size = TARGET_NO_FIELD,
+      .section_align = 1,
+      .vaddr_offset = 0,
+      .install_dos_part = TARGET_NO_FIELD,
+      .install_bsd_part = TARGET_NO_FIELD,
+      .link_addr = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR,
+      .elf_target = EM_MIPS,
+      .link_align = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN,
+      .default_compression = COMPRESSION_NONE
+    },
   };
 
 #define grub_target_to_host32(x) (grub_target_to_host32_real (image_target, (x)))