2010-01-07 Robert Millan <rmh.grub@aybabtu.com>
Reset Multiboot 2 support. New loader implements the draft in /branches/multiboot2 and shares as much code as possible with the production Multiboot 1 implementation. * loader/ieee1275/multiboot2.c: Remove file. Update all users. * loader/multiboot2.c: Likewise. * loader/i386/multiboot_helper.S: Likewise. * include/multiboot2.h: Replace with latest version from the draft in /branches/multiboot2. * conf/i386-coreboot.rmk (multiboot_mod_SOURCES): Remove `loader/i386/multiboot_helper.S', `loader/i386/pc/multiboot2.c' and `loader/multiboot2.c'. (pkglib_MODULES): Add `multiboot2.mod'. (multiboot2_mod_SOURCES): New variable. (multiboot2_mod_LDFLAGS): Likewise. (multiboot2_mod_CFLAGS): Likewise. Define `GRUB_USE_MULTIBOOT2'. * conf/i386-pc.rmk: Likewise. * conf/powerpc-ieee1275.rmk (pkglib_MODULES): Remove `multiboot.mod'. (multiboot_mod_SOURCES): Remove variable. (multiboot_mod_LDFLAGS): Likewise. (multiboot_mod_CFLAGS): Likewise. * include/grub/multiboot.h [GRUB_USE_MULTIBOOT2]: Include `<multiboot2.h>' instead of `<multiboot.h>'. [GRUB_USE_MULTIBOOT2] (MULTIBOOT_BOOTLOADER_MAGIC) (MULTIBOOT_HEADER_MAGIC): New macros. * loader/multiboot_loader.c (module_version_status): Remove variable. (find_multi_boot2_header): Remove function. (grub_cmd_multiboot_loader): Remove Multiboot 2 / Multiboot 1 selection logic. Always check for the Multiboot version we're compiling for. (grub_cmd_module_loader): Likewise. [GRUB_USE_MULTIBOOT2] (GRUB_MOD_INIT(multiboot)): Register `multiboot2' command instead of `multiboot'.
This commit is contained in:
Robert Millan
parent
5d2c52b8ca
commit
bc8b32b3ec
10 changed files with 266 additions and 823 deletions
40
ChangeLog
40
ChangeLog
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@ -1,3 +1,43 @@
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2010-01-07 Robert Millan <rmh.grub@aybabtu.com>
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Reset Multiboot 2 support. New loader implements the draft in
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/branches/multiboot2 and shares as much code as possible with the
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production Multiboot 1 implementation.
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* loader/ieee1275/multiboot2.c: Remove file. Update all users.
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* loader/multiboot2.c: Likewise.
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* loader/i386/multiboot_helper.S: Likewise.
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* include/multiboot2.h: Replace with latest version from the draft
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in /branches/multiboot2.
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* conf/i386-coreboot.rmk (multiboot_mod_SOURCES): Remove
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`loader/i386/multiboot_helper.S', `loader/i386/pc/multiboot2.c'
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and `loader/multiboot2.c'.
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(pkglib_MODULES): Add `multiboot2.mod'.
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(multiboot2_mod_SOURCES): New variable.
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(multiboot2_mod_LDFLAGS): Likewise.
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(multiboot2_mod_CFLAGS): Likewise. Define `GRUB_USE_MULTIBOOT2'.
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* conf/i386-pc.rmk: Likewise.
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* conf/powerpc-ieee1275.rmk (pkglib_MODULES): Remove `multiboot.mod'.
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(multiboot_mod_SOURCES): Remove variable.
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(multiboot_mod_LDFLAGS): Likewise.
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(multiboot_mod_CFLAGS): Likewise.
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* include/grub/multiboot.h [GRUB_USE_MULTIBOOT2]: Include
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`<multiboot2.h>' instead of `<multiboot.h>'.
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[GRUB_USE_MULTIBOOT2] (MULTIBOOT_BOOTLOADER_MAGIC)
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(MULTIBOOT_HEADER_MAGIC): New macros.
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* loader/multiboot_loader.c (module_version_status): Remove variable.
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(find_multi_boot2_header): Remove function.
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(grub_cmd_multiboot_loader): Remove Multiboot 2 / Multiboot 1 selection
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logic. Always check for the Multiboot version we're compiling for.
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(grub_cmd_module_loader): Likewise.
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[GRUB_USE_MULTIBOOT2] (GRUB_MOD_INIT(multiboot)): Register `multiboot2'
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command instead of `multiboot'.
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2010-01-07 Robert Millan <rmh.grub@aybabtu.com>
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2010-01-07 Robert Millan <rmh.grub@aybabtu.com>
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* include/multiboot.h (MULTIBOOT_UNSUPPORTED): Moved from here ...
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* include/multiboot.h (MULTIBOOT_UNSUPPORTED): Moved from here ...
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@ -102,7 +102,7 @@ bin_SCRIPTS += grub-mkrescue
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grub_mkrescue_SOURCES = util/grub-mkrescue.in
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grub_mkrescue_SOURCES = util/grub-mkrescue.in
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# Modules.
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# Modules.
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pkglib_MODULES = linux.mod multiboot.mod \
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pkglib_MODULES = linux.mod \
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aout.mod play.mod serial.mod \
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aout.mod play.mod serial.mod \
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memdisk.mod pci.mod lspci.mod reboot.mod \
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memdisk.mod pci.mod lspci.mod reboot.mod \
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halt.mod datetime.mod date.mod datehook.mod \
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halt.mod datetime.mod date.mod datehook.mod \
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@ -140,16 +140,20 @@ serial_mod_SOURCES = term/i386/pc/serial.c
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serial_mod_CFLAGS = $(COMMON_CFLAGS)
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serial_mod_CFLAGS = $(COMMON_CFLAGS)
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serial_mod_LDFLAGS = $(COMMON_LDFLAGS)
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serial_mod_LDFLAGS = $(COMMON_LDFLAGS)
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# For multiboot.mod.
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pkglib_MODULES += multiboot.mod
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multiboot_mod_SOURCES = loader/i386/multiboot.c \
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multiboot_mod_SOURCES = loader/i386/multiboot.c \
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loader/i386/multiboot_helper.S \
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loader/i386/pc/multiboot2.c \
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loader/multiboot2.c \
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loader/multiboot_loader.c
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loader/multiboot_loader.c
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multiboot_mod_CFLAGS = $(COMMON_CFLAGS)
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multiboot_mod_CFLAGS = $(COMMON_CFLAGS)
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multiboot_mod_LDFLAGS = $(COMMON_LDFLAGS)
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multiboot_mod_LDFLAGS = $(COMMON_LDFLAGS)
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multiboot_mod_ASFLAGS = $(COMMON_ASFLAGS)
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multiboot_mod_ASFLAGS = $(COMMON_ASFLAGS)
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pkglib_MODULES += multiboot2.mod
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multiboot2_mod_SOURCES = loader/i386/multiboot.c \
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loader/multiboot_loader.c
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multiboot2_mod_CFLAGS = $(COMMON_CFLAGS) -DGRUB_USE_MULTIBOOT2
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multiboot2_mod_LDFLAGS = $(COMMON_LDFLAGS)
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multiboot2_mod_ASFLAGS = $(COMMON_ASFLAGS)
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# For aout.mod.
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# For aout.mod.
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aout_mod_SOURCES = loader/aout.c
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aout_mod_SOURCES = loader/aout.c
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aout_mod_CFLAGS = $(COMMON_CFLAGS)
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aout_mod_CFLAGS = $(COMMON_CFLAGS)
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@ -116,7 +116,7 @@ bin_SCRIPTS += grub-mkrescue
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grub_mkrescue_SOURCES = util/grub-mkrescue.in
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grub_mkrescue_SOURCES = util/grub-mkrescue.in
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pkglib_MODULES = biosdisk.mod chain.mod \
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pkglib_MODULES = biosdisk.mod chain.mod \
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multiboot.mod reboot.mod halt.mod \
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reboot.mod halt.mod \
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vbe.mod vbetest.mod vbeinfo.mod play.mod serial.mod \
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vbe.mod vbetest.mod vbeinfo.mod play.mod serial.mod \
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vga.mod memdisk.mod pci.mod lspci.mod \
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vga.mod memdisk.mod pci.mod lspci.mod \
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aout.mod bsd.mod pxe.mod pxecmd.mod datetime.mod date.mod \
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aout.mod bsd.mod pxe.mod pxecmd.mod datetime.mod date.mod \
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@ -201,16 +201,20 @@ serial_mod_SOURCES = term/i386/pc/serial.c
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serial_mod_CFLAGS = $(COMMON_CFLAGS)
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serial_mod_CFLAGS = $(COMMON_CFLAGS)
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serial_mod_LDFLAGS = $(COMMON_LDFLAGS)
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serial_mod_LDFLAGS = $(COMMON_LDFLAGS)
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# For multiboot.mod.
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pkglib_MODULES += multiboot.mod
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multiboot_mod_SOURCES = loader/i386/multiboot.c \
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multiboot_mod_SOURCES = loader/i386/multiboot.c \
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loader/i386/multiboot_helper.S \
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loader/i386/pc/multiboot2.c \
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loader/multiboot2.c \
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loader/multiboot_loader.c
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loader/multiboot_loader.c
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multiboot_mod_CFLAGS = $(COMMON_CFLAGS)
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multiboot_mod_CFLAGS = $(COMMON_CFLAGS)
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multiboot_mod_LDFLAGS = $(COMMON_LDFLAGS)
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multiboot_mod_LDFLAGS = $(COMMON_LDFLAGS)
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multiboot_mod_ASFLAGS = $(COMMON_ASFLAGS)
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multiboot_mod_ASFLAGS = $(COMMON_ASFLAGS)
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pkglib_MODULES += multiboot2.mod
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multiboot2_mod_SOURCES = loader/i386/multiboot.c \
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loader/multiboot_loader.c
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multiboot2_mod_CFLAGS = $(COMMON_CFLAGS) -DGRUB_USE_MULTIBOOT2
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multiboot2_mod_LDFLAGS = $(COMMON_LDFLAGS)
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multiboot2_mod_ASFLAGS = $(COMMON_ASFLAGS)
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# For vbe.mod.
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# For vbe.mod.
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vbe_mod_SOURCES = video/i386/pc/vbe.c
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vbe_mod_SOURCES = video/i386/pc/vbe.c
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vbe_mod_CFLAGS = $(COMMON_CFLAGS)
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vbe_mod_CFLAGS = $(COMMON_CFLAGS)
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@ -61,7 +61,6 @@ pkglib_MODULES = halt.mod \
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linux.mod \
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linux.mod \
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reboot.mod \
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reboot.mod \
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suspend.mod \
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suspend.mod \
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multiboot.mod \
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memdisk.mod \
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memdisk.mod \
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lsmmap.mod
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lsmmap.mod
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@ -91,13 +90,6 @@ halt_mod_SOURCES = commands/halt.c
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halt_mod_CFLAGS = $(COMMON_CFLAGS)
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halt_mod_CFLAGS = $(COMMON_CFLAGS)
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halt_mod_LDFLAGS = $(COMMON_LDFLAGS)
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halt_mod_LDFLAGS = $(COMMON_LDFLAGS)
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# For multiboot.mod
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multiboot_mod_SOURCES = loader/ieee1275/multiboot2.c \
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loader/multiboot2.c \
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loader/multiboot_loader.c
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multiboot_mod_CFLAGS = $(COMMON_CFLAGS)
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multiboot_mod_LDFLAGS = $(COMMON_LDFLAGS)
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# For memdisk.mod.
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# For memdisk.mod.
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memdisk_mod_SOURCES = disk/memdisk.c
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memdisk_mod_SOURCES = disk/memdisk.c
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memdisk_mod_CFLAGS = $(COMMON_CFLAGS)
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memdisk_mod_CFLAGS = $(COMMON_CFLAGS)
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@ -1,7 +1,7 @@
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/* multiboot.h - multiboot header file with grub definitions. */
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/* multiboot.h - multiboot header file with grub definitions. */
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/*
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/*
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* GRUB -- GRand Unified Bootloader
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003,2007,2008 Free Software Foundation, Inc.
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* Copyright (C) 2003,2007,2008,2010 Free Software Foundation, Inc.
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*
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*
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* GRUB is free software: you can redistribute it and/or modify
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* it under the terms of the GNU General Public License as published by
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@ -20,7 +20,14 @@
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#ifndef GRUB_MULTIBOOT_HEADER
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#ifndef GRUB_MULTIBOOT_HEADER
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#define GRUB_MULTIBOOT_HEADER 1
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#define GRUB_MULTIBOOT_HEADER 1
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#ifdef GRUB_USE_MULTIBOOT2
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#include <multiboot2.h>
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/* Same thing as far as our loader is concerned. */
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#define MULTIBOOT_BOOTLOADER_MAGIC MULTIBOOT2_BOOTLOADER_MAGIC
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#define MULTIBOOT_HEADER_MAGIC MULTIBOOT2_HEADER_MAGIC
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#else
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#include <multiboot.h>
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#include <multiboot.h>
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#endif
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void grub_multiboot (int argc, char *argv[]);
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void grub_multiboot (int argc, char *argv[]);
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void grub_module (int argc, char *argv[]);
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void grub_module (int argc, char *argv[]);
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@ -1,110 +1,220 @@
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/* multiboot2.h - multiboot 2 header file. */
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/* multiboot2.h - Multiboot 2 header file. */
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/*
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/* Copyright (C) 1999,2003,2007,2008,2009,2010 Free Software Foundation, Inc.
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2007,2009 Free Software Foundation, Inc.
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*
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*
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* GRUB is free software: you can redistribute it and/or modify
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* it under the terms of the GNU General Public License as published by
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* of this software and associated documentation files (the "Software"), to
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* the Free Software Foundation, either version 3 of the License, or
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* deal in the Software without restriction, including without limitation the
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* (at your option) any later version.
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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*
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* GRUB is distributed in the hope that it will be useful,
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* The above copyright notice and this permission notice shall be included in
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* all copies or substantial portions of the Software.
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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* You should have received a copy of the GNU General Public License
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL ANY
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* DEVELOPER OR DISTRIBUTOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
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* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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*/
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#ifndef MULTIBOOT2_HEADER
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#ifndef MULTIBOOT_HEADER
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#define MULTIBOOT2_HEADER 1
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#define MULTIBOOT_HEADER 1
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/* How many bytes from the start of the file we search for the header. */
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/* How many bytes from the start of the file we search for the header. */
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#define MULTIBOOT2_HEADER_SEARCH 8192
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#define MULTIBOOT_SEARCH 8192
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/* The magic field should contain this. */
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/* The magic field should contain this. */
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#define MULTIBOOT2_HEADER_MAGIC 0xe85250d6
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#define MULTIBOOT2_HEADER_MAGIC 0xe85250d6
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/* Passed from the bootloader to the kernel. */
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/* This should be in %eax. */
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#define MULTIBOOT2_BOOTLOADER_MAGIC 0x36d76289
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#define MULTIBOOT2_BOOTLOADER_MAGIC 0x36d76289
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/* Alignment of multiboot modules. */
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/* Alignment of multiboot modules. */
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#define MULTIBOOT2_MOD_ALIGN 0x00001000
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#define MULTIBOOT_MOD_ALIGN 0x00001000
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/* Alignment of the multiboot info structure. */
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#define MULTIBOOT_INFO_ALIGN 0x00000004
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/* Flags set in the 'flags' member of the multiboot header. */
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/* Align all boot modules on i386 page (4KB) boundaries. */
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#define MULTIBOOT_PAGE_ALIGN 0x00000001
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/* Must pass memory information to OS. */
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#define MULTIBOOT_MEMORY_INFO 0x00000002
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/* Must pass video information to OS. */
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#define MULTIBOOT_VIDEO_MODE 0x00000004
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/* This flag indicates the use of the address fields in the header. */
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#define MULTIBOOT_AOUT_KLUDGE 0x00010000
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/* Flags to be set in the 'flags' member of the multiboot info structure. */
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/* is there basic lower/upper memory information? */
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#define MULTIBOOT_INFO_MEMORY 0x00000001
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/* is there a boot device set? */
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#define MULTIBOOT_INFO_BOOTDEV 0x00000002
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/* is the command-line defined? */
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#define MULTIBOOT_INFO_CMDLINE 0x00000004
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/* are there modules to do something with? */
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#define MULTIBOOT_INFO_MODS 0x00000008
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/* These next two are mutually exclusive */
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/* is there a symbol table loaded? */
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#define MULTIBOOT_INFO_AOUT_SYMS 0x00000010
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/* is there an ELF section header table? */
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#define MULTIBOOT_INFO_ELF_SHDR 0X00000020
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/* is there a full memory map? */
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#define MULTIBOOT_INFO_MEM_MAP 0x00000040
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/* Is there drive info? */
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#define MULTIBOOT_INFO_DRIVE_INFO 0x00000080
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/* Is there a config table? */
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#define MULTIBOOT_INFO_CONFIG_TABLE 0x00000100
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/* Is there a boot loader name? */
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#define MULTIBOOT_INFO_BOOT_LOADER_NAME 0x00000200
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/* Is there a APM table? */
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#define MULTIBOOT_INFO_APM_TABLE 0x00000400
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/* Is there video information? */
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#define MULTIBOOT_INFO_VIDEO_INFO 0x00000800
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#ifndef ASM_FILE
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#ifndef ASM_FILE
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#ifndef __WORDSIZE
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typedef unsigned short multiboot_uint16_t;
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#include <stdint.h>
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typedef unsigned int multiboot_uint32_t;
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#endif
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typedef unsigned long long multiboot_uint64_t;
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/* XXX not portable? */
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struct multiboot_header
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#if __WORDSIZE == 64
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typedef uint64_t multiboot2_word;
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#else
|
|
||||||
typedef uint32_t multiboot2_word;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
struct multiboot2_header
|
|
||||||
{
|
{
|
||||||
uint32_t magic;
|
/* Must be MULTIBOOT_MAGIC - see above. */
|
||||||
uint32_t flags;
|
multiboot_uint32_t magic;
|
||||||
|
|
||||||
|
/* Feature flags. */
|
||||||
|
multiboot_uint32_t flags;
|
||||||
|
|
||||||
|
/* The above fields plus this one must equal 0 mod 2^32. */
|
||||||
|
multiboot_uint32_t checksum;
|
||||||
|
|
||||||
|
/* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */
|
||||||
|
multiboot_uint32_t header_addr;
|
||||||
|
multiboot_uint32_t load_addr;
|
||||||
|
multiboot_uint32_t load_end_addr;
|
||||||
|
multiboot_uint32_t bss_end_addr;
|
||||||
|
multiboot_uint32_t entry_addr;
|
||||||
|
|
||||||
|
/* These are only valid if MULTIBOOT_VIDEO_MODE is set. */
|
||||||
|
multiboot_uint32_t mode_type;
|
||||||
|
multiboot_uint32_t width;
|
||||||
|
multiboot_uint32_t height;
|
||||||
|
multiboot_uint32_t depth;
|
||||||
};
|
};
|
||||||
|
|
||||||
struct multiboot2_tag_header
|
/* The symbol table for a.out. */
|
||||||
|
struct multiboot_aout_symbol_table
|
||||||
{
|
{
|
||||||
uint32_t key;
|
multiboot_uint32_t tabsize;
|
||||||
uint32_t len;
|
multiboot_uint32_t strsize;
|
||||||
|
multiboot_uint32_t addr;
|
||||||
|
multiboot_uint32_t reserved;
|
||||||
};
|
};
|
||||||
|
typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
|
||||||
|
|
||||||
#define MULTIBOOT2_TAG_RESERVED1 0
|
/* The section header table for ELF. */
|
||||||
#define MULTIBOOT2_TAG_RESERVED2 (~0)
|
struct multiboot_elf_section_header_table
|
||||||
|
|
||||||
#define MULTIBOOT2_TAG_START 1
|
|
||||||
struct multiboot2_tag_start
|
|
||||||
{
|
{
|
||||||
struct multiboot2_tag_header header;
|
multiboot_uint32_t num;
|
||||||
multiboot2_word size; /* Total size of all multiboot tags. */
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t addr;
|
||||||
|
multiboot_uint32_t shndx;
|
||||||
};
|
};
|
||||||
|
typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t;
|
||||||
|
|
||||||
#define MULTIBOOT2_TAG_NAME 2
|
struct multiboot_info
|
||||||
struct multiboot2_tag_name
|
|
||||||
{
|
{
|
||||||
struct multiboot2_tag_header header;
|
/* Multiboot info version number */
|
||||||
char name[1];
|
multiboot_uint32_t flags;
|
||||||
};
|
|
||||||
|
|
||||||
#define MULTIBOOT2_TAG_MODULE 3
|
/* Available memory from BIOS */
|
||||||
struct multiboot2_tag_module
|
multiboot_uint32_t mem_lower;
|
||||||
{
|
multiboot_uint32_t mem_upper;
|
||||||
struct multiboot2_tag_header header;
|
|
||||||
multiboot2_word addr;
|
|
||||||
multiboot2_word size;
|
|
||||||
char type[36];
|
|
||||||
char cmdline[1];
|
|
||||||
};
|
|
||||||
|
|
||||||
#define MULTIBOOT2_TAG_MEMORY 4
|
/* "root" partition */
|
||||||
struct multiboot2_tag_memory
|
multiboot_uint32_t boot_device;
|
||||||
{
|
|
||||||
struct multiboot2_tag_header header;
|
|
||||||
multiboot2_word addr;
|
|
||||||
multiboot2_word size;
|
|
||||||
multiboot2_word type;
|
|
||||||
};
|
|
||||||
|
|
||||||
#define MULTIBOOT2_TAG_UNUSED 5
|
/* Kernel command line */
|
||||||
struct multiboot2_tag_unused
|
multiboot_uint32_t cmdline;
|
||||||
{
|
|
||||||
struct multiboot2_tag_header header;
|
|
||||||
};
|
|
||||||
|
|
||||||
#define MULTIBOOT2_TAG_END 0xffff
|
/* Boot-Module list */
|
||||||
struct multiboot2_tag_end
|
multiboot_uint32_t mods_count;
|
||||||
{
|
multiboot_uint32_t mods_addr;
|
||||||
struct multiboot2_tag_header header;
|
|
||||||
|
union
|
||||||
|
{
|
||||||
|
multiboot_aout_symbol_table_t aout_sym;
|
||||||
|
multiboot_elf_section_header_table_t elf_sec;
|
||||||
|
} u;
|
||||||
|
|
||||||
|
/* Memory Mapping buffer */
|
||||||
|
multiboot_uint32_t mmap_length;
|
||||||
|
multiboot_uint32_t mmap_addr;
|
||||||
|
|
||||||
|
/* Drive Info buffer */
|
||||||
|
multiboot_uint32_t drives_length;
|
||||||
|
multiboot_uint32_t drives_addr;
|
||||||
|
|
||||||
|
/* ROM configuration table */
|
||||||
|
multiboot_uint32_t config_table;
|
||||||
|
|
||||||
|
/* Boot Loader Name */
|
||||||
|
multiboot_uint32_t boot_loader_name;
|
||||||
|
|
||||||
|
/* APM table */
|
||||||
|
multiboot_uint32_t apm_table;
|
||||||
|
|
||||||
|
/* Video */
|
||||||
|
multiboot_uint32_t vbe_control_info;
|
||||||
|
multiboot_uint32_t vbe_mode_info;
|
||||||
|
multiboot_uint16_t vbe_mode;
|
||||||
|
multiboot_uint16_t vbe_interface_seg;
|
||||||
|
multiboot_uint16_t vbe_interface_off;
|
||||||
|
multiboot_uint16_t vbe_interface_len;
|
||||||
};
|
};
|
||||||
|
typedef struct multiboot_info multiboot_info_t;
|
||||||
|
|
||||||
|
struct multiboot_mmap_entry
|
||||||
|
{
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint64_t addr;
|
||||||
|
multiboot_uint64_t len;
|
||||||
|
#define MULTIBOOT_MEMORY_AVAILABLE 1
|
||||||
|
#define MULTIBOOT_MEMORY_RESERVED 2
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
} __attribute__((packed));
|
||||||
|
typedef struct multiboot_mmap_entry multiboot_memory_map_t;
|
||||||
|
|
||||||
|
struct multiboot_mod_list
|
||||||
|
{
|
||||||
|
/* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */
|
||||||
|
multiboot_uint32_t mod_start;
|
||||||
|
multiboot_uint32_t mod_end;
|
||||||
|
|
||||||
|
/* Module command line */
|
||||||
|
multiboot_uint32_t cmdline;
|
||||||
|
|
||||||
|
/* padding to take it to 16 bytes (must be zero) */
|
||||||
|
multiboot_uint32_t pad;
|
||||||
|
};
|
||||||
|
typedef struct multiboot_mod_list multiboot_module_t;
|
||||||
|
|
||||||
#endif /* ! ASM_FILE */
|
#endif /* ! ASM_FILE */
|
||||||
|
|
||||||
#endif /* ! MULTIBOOT2_HEADER */
|
#endif /* ! MULTIBOOT_HEADER */
|
||||||
|
|
|
||||||
|
|
@ -1,43 +0,0 @@
|
||||||
/*
|
|
||||||
* GRUB -- GRand Unified Bootloader
|
|
||||||
* Copyright (C) 1999,2000,2001,2002,2003,2005,2006,2007,2008,2009 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/symbol.h>
|
|
||||||
#include <multiboot.h>
|
|
||||||
#include <multiboot2.h>
|
|
||||||
|
|
||||||
.p2align 2 /* force 4-byte alignment */
|
|
||||||
|
|
||||||
/*
|
|
||||||
* This starts the multiboot 2 kernel.
|
|
||||||
*/
|
|
||||||
|
|
||||||
FUNCTION(grub_multiboot2_real_boot)
|
|
||||||
/* Push the entry address on the stack. */
|
|
||||||
pushl %eax
|
|
||||||
/* Move the address of the multiboot information structure to ebx. */
|
|
||||||
movl %edx,%ebx
|
|
||||||
|
|
||||||
/* Interrupts should be disabled. */
|
|
||||||
cli
|
|
||||||
|
|
||||||
/* Move the magic value into eax and jump to the kernel. */
|
|
||||||
movl $MULTIBOOT2_BOOTLOADER_MAGIC,%eax
|
|
||||||
popl %ecx
|
|
||||||
|
|
||||||
cld
|
|
||||||
jmp *%ecx
|
|
||||||
|
|
@ -1,147 +0,0 @@
|
||||||
/* multiboot.c - boot a multiboot 2 OS image. */
|
|
||||||
/*
|
|
||||||
* GRUB -- GRand Unified Bootloader
|
|
||||||
* Copyright (C) 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 <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <grub/loader.h>
|
|
||||||
#include <grub/ieee1275/ieee1275.h>
|
|
||||||
#include <grub/multiboot2.h>
|
|
||||||
#include <multiboot2.h>
|
|
||||||
#include <grub/err.h>
|
|
||||||
#include <grub/elf.h>
|
|
||||||
#include <grub/misc.h>
|
|
||||||
#include <grub/mm.h>
|
|
||||||
#include <grub/machine/kernel.h>
|
|
||||||
#include <grub/machine/loader.h>
|
|
||||||
#ifdef __i386__
|
|
||||||
#include <grub/cpu/multiboot.h>
|
|
||||||
#endif
|
|
||||||
|
|
||||||
typedef void (*kernel_entry_t) (unsigned long, void *, int (void *),
|
|
||||||
unsigned long, unsigned long);
|
|
||||||
|
|
||||||
/* Claim the memory occupied by the multiboot kernel. */
|
|
||||||
grub_err_t
|
|
||||||
grub_mb2_arch_elf32_hook (Elf32_Phdr *phdr,
|
|
||||||
grub_addr_t *addr __attribute__((unused)),
|
|
||||||
int *do_load)
|
|
||||||
{
|
|
||||||
int rc;
|
|
||||||
|
|
||||||
if (phdr->p_type != PT_LOAD)
|
|
||||||
{
|
|
||||||
*do_load = 0;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
*do_load = 1;
|
|
||||||
|
|
||||||
rc = grub_claimmap (phdr->p_paddr, phdr->p_memsz);
|
|
||||||
if (rc)
|
|
||||||
return grub_error(GRUB_ERR_OUT_OF_MEMORY, "couldn't claim %x - %x",
|
|
||||||
phdr->p_paddr, phdr->p_paddr + phdr->p_memsz);
|
|
||||||
|
|
||||||
grub_dprintf ("loader", "Loading segment at 0x%x - 0x%x\n", phdr->p_paddr,
|
|
||||||
phdr->p_paddr + phdr->p_memsz);
|
|
||||||
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Claim the memory occupied by the multiboot kernel. */
|
|
||||||
grub_err_t
|
|
||||||
grub_mb2_arch_elf64_hook (Elf64_Phdr *phdr,
|
|
||||||
grub_addr_t *addr __attribute__((unused)),
|
|
||||||
int *do_load)
|
|
||||||
{
|
|
||||||
int rc;
|
|
||||||
|
|
||||||
if (phdr->p_type != PT_LOAD)
|
|
||||||
{
|
|
||||||
*do_load = 0;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
*do_load = 1;
|
|
||||||
|
|
||||||
rc = grub_claimmap (phdr->p_paddr, phdr->p_memsz);
|
|
||||||
if (rc)
|
|
||||||
return grub_error(GRUB_ERR_OUT_OF_MEMORY, "couldn't claim 0x%lx - 0x%lx",
|
|
||||||
phdr->p_paddr, phdr->p_paddr + phdr->p_memsz);
|
|
||||||
|
|
||||||
grub_dprintf ("loader", "Loading segment at 0x%lx - 0x%lx\n",
|
|
||||||
(unsigned long) phdr->p_paddr,
|
|
||||||
(unsigned long) (phdr->p_paddr + phdr->p_memsz));
|
|
||||||
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
grub_err_t
|
|
||||||
grub_mb2_arch_module_alloc (grub_size_t size, grub_addr_t *addr)
|
|
||||||
{
|
|
||||||
int rc;
|
|
||||||
|
|
||||||
/* XXX Will need to map on some firmwares. */
|
|
||||||
rc = grub_ieee1275_claim (0, size, MULTIBOOT2_MOD_ALIGN, addr);
|
|
||||||
if (rc)
|
|
||||||
return grub_error (GRUB_ERR_OUT_OF_MEMORY,
|
|
||||||
"firmware couldn't allocate memory (size 0x%lx)", size);
|
|
||||||
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
grub_err_t
|
|
||||||
grub_mb2_arch_module_free (grub_addr_t addr, grub_size_t size)
|
|
||||||
{
|
|
||||||
grub_ieee1275_release (addr, size);
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
grub_err_t
|
|
||||||
grub_mb2_tags_arch_create (void)
|
|
||||||
{
|
|
||||||
/* Nothing special. */
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Release the memory we claimed from Open Firmware above. */
|
|
||||||
void
|
|
||||||
grub_mb2_arch_unload (struct multiboot2_tag_header *tags)
|
|
||||||
{
|
|
||||||
struct multiboot2_tag_header *tag;
|
|
||||||
|
|
||||||
/* Free all module memory in the tag list. */
|
|
||||||
for_each_tag (tag, tags)
|
|
||||||
{
|
|
||||||
if (tag->key == MULTIBOOT2_TAG_MODULE)
|
|
||||||
{
|
|
||||||
struct multiboot2_tag_module *module =
|
|
||||||
(struct multiboot2_tag_module *) tag;
|
|
||||||
grub_ieee1275_release (module->addr, module->size);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
void
|
|
||||||
grub_mb2_arch_boot (grub_addr_t entry_addr, void *tags)
|
|
||||||
{
|
|
||||||
#if defined(__powerpc__)
|
|
||||||
kernel_entry_t entry = (kernel_entry_t) entry_addr;
|
|
||||||
entry (MULTIBOOT2_BOOTLOADER_MAGIC, tags, grub_ieee1275_entry_fn, 0, 0);
|
|
||||||
#elif defined(__i386__)
|
|
||||||
grub_multiboot2_real_boot (entry_addr, tags);
|
|
||||||
#else
|
|
||||||
#error
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
|
|
@ -1,461 +0,0 @@
|
||||||
/* multiboot2.c - boot a multiboot 2 OS image. */
|
|
||||||
/*
|
|
||||||
* GRUB -- GRand Unified Bootloader
|
|
||||||
* Copyright (C) 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 <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <grub/loader.h>
|
|
||||||
#include <grub/machine/loader.h>
|
|
||||||
#include <grub/multiboot2.h>
|
|
||||||
#include <multiboot2.h>
|
|
||||||
#include <grub/elfload.h>
|
|
||||||
#include <grub/file.h>
|
|
||||||
#include <grub/err.h>
|
|
||||||
#include <grub/dl.h>
|
|
||||||
#include <grub/mm.h>
|
|
||||||
#include <grub/misc.h>
|
|
||||||
#include <grub/gzio.h>
|
|
||||||
|
|
||||||
static grub_addr_t entry;
|
|
||||||
extern grub_dl_t my_mod;
|
|
||||||
|
|
||||||
static char *grub_mb2_tags;
|
|
||||||
static char *grub_mb2_tags_pos;
|
|
||||||
static grub_size_t grub_mb2_tags_len;
|
|
||||||
static int grub_mb2_tags_count;
|
|
||||||
|
|
||||||
static void
|
|
||||||
grub_mb2_tags_free (void)
|
|
||||||
{
|
|
||||||
grub_dprintf ("loader", "Freeing all tags...\n");
|
|
||||||
grub_free (grub_mb2_tags);
|
|
||||||
grub_mb2_tags = 0;
|
|
||||||
grub_mb2_tags_pos = 0;
|
|
||||||
grub_mb2_tags_len = 0;
|
|
||||||
grub_mb2_tags_count = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
grub_err_t
|
|
||||||
grub_mb2_tag_alloc (grub_addr_t *addr, int key, grub_size_t len)
|
|
||||||
{
|
|
||||||
struct multiboot2_tag_header *tag;
|
|
||||||
grub_size_t used;
|
|
||||||
grub_size_t needed;
|
|
||||||
|
|
||||||
grub_dprintf ("loader", "Allocating tag: key 0x%x, size 0x%lx.\n",
|
|
||||||
key, (unsigned long) len);
|
|
||||||
|
|
||||||
used = grub_mb2_tags_pos - grub_mb2_tags;
|
|
||||||
len = ALIGN_UP (len, sizeof (multiboot2_word));
|
|
||||||
|
|
||||||
needed = used + len;
|
|
||||||
|
|
||||||
if (needed > grub_mb2_tags_len)
|
|
||||||
{
|
|
||||||
/* Allocate new buffer. */
|
|
||||||
grub_size_t newsize = needed * 2;
|
|
||||||
char *newarea;
|
|
||||||
|
|
||||||
grub_dprintf ("loader", "Reallocating tag buffer (new size 0x%lx).\n",
|
|
||||||
(unsigned long) newsize);
|
|
||||||
|
|
||||||
newarea = grub_malloc (newsize);
|
|
||||||
if (! newarea)
|
|
||||||
return grub_errno;
|
|
||||||
grub_memcpy (newarea, grub_mb2_tags, grub_mb2_tags_len);
|
|
||||||
grub_free (grub_mb2_tags);
|
|
||||||
|
|
||||||
grub_mb2_tags_len = newsize;
|
|
||||||
grub_mb2_tags = newarea;
|
|
||||||
grub_mb2_tags_pos = newarea + used;
|
|
||||||
}
|
|
||||||
|
|
||||||
tag = (struct multiboot2_tag_header *) grub_mb2_tags_pos;
|
|
||||||
grub_mb2_tags_pos += len;
|
|
||||||
|
|
||||||
tag->key = key;
|
|
||||||
tag->len = len;
|
|
||||||
|
|
||||||
if (addr)
|
|
||||||
*addr = (grub_addr_t) tag;
|
|
||||||
|
|
||||||
grub_mb2_tags_count++;
|
|
||||||
|
|
||||||
grub_dprintf ("loader", "Allocated tag %u at %p.\n", grub_mb2_tags_count, tag);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static grub_err_t
|
|
||||||
grub_mb2_tag_start_create (void)
|
|
||||||
{
|
|
||||||
return grub_mb2_tag_alloc (0, MULTIBOOT2_TAG_START,
|
|
||||||
sizeof (struct multiboot2_tag_start));
|
|
||||||
}
|
|
||||||
|
|
||||||
static grub_err_t
|
|
||||||
grub_mb2_tag_name_create (void)
|
|
||||||
{
|
|
||||||
struct multiboot2_tag_name *name;
|
|
||||||
grub_addr_t name_addr;
|
|
||||||
grub_err_t err;
|
|
||||||
const char *grub_version = PACKAGE_STRING;
|
|
||||||
|
|
||||||
err = grub_mb2_tag_alloc (&name_addr, MULTIBOOT2_TAG_NAME,
|
|
||||||
sizeof (struct multiboot2_tag_name) +
|
|
||||||
sizeof (grub_version) + 1);
|
|
||||||
if (err)
|
|
||||||
return err;
|
|
||||||
|
|
||||||
name = (struct multiboot2_tag_name *) name_addr;
|
|
||||||
grub_strcpy (name->name, grub_version);
|
|
||||||
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
typedef grub_err_t (*tag_create_t) (void);
|
|
||||||
static tag_create_t grub_mb2_tag_creators[] = {
|
|
||||||
grub_mb2_tag_start_create,
|
|
||||||
grub_mb2_tag_name_create,
|
|
||||||
grub_mb2_tags_arch_create,
|
|
||||||
0,
|
|
||||||
};
|
|
||||||
|
|
||||||
static grub_err_t
|
|
||||||
grub_mb2_tags_create (void)
|
|
||||||
{
|
|
||||||
tag_create_t *creator;
|
|
||||||
grub_err_t err;
|
|
||||||
|
|
||||||
for (creator = grub_mb2_tag_creators; *creator != 0; creator++)
|
|
||||||
{
|
|
||||||
err = (*creator) ();
|
|
||||||
if (err)
|
|
||||||
goto error;
|
|
||||||
}
|
|
||||||
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
|
|
||||||
error:
|
|
||||||
grub_error_push ();
|
|
||||||
grub_mb2_tags_free ();
|
|
||||||
grub_error_pop ();
|
|
||||||
return err;
|
|
||||||
}
|
|
||||||
|
|
||||||
static grub_err_t
|
|
||||||
grub_mb2_tags_finish (void)
|
|
||||||
{
|
|
||||||
struct multiboot2_tag_start *start;
|
|
||||||
grub_err_t err;
|
|
||||||
|
|
||||||
/* Create the `end' tag. */
|
|
||||||
err = grub_mb2_tag_alloc (0, MULTIBOOT2_TAG_END,
|
|
||||||
sizeof (struct multiboot2_tag_end));
|
|
||||||
if (err)
|
|
||||||
goto error;
|
|
||||||
|
|
||||||
/* We created the `start' tag first. Update it now. */
|
|
||||||
start = (struct multiboot2_tag_start *) grub_mb2_tags;
|
|
||||||
start->size = grub_mb2_tags_pos - grub_mb2_tags;
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
|
|
||||||
error:
|
|
||||||
grub_error_push ();
|
|
||||||
grub_mb2_tags_free ();
|
|
||||||
grub_error_pop ();
|
|
||||||
return err;
|
|
||||||
}
|
|
||||||
|
|
||||||
static grub_err_t
|
|
||||||
grub_mb2_boot (void)
|
|
||||||
{
|
|
||||||
grub_mb2_tags_finish ();
|
|
||||||
|
|
||||||
grub_dprintf ("loader", "Tags at %p\n", grub_mb2_tags);
|
|
||||||
grub_mb2_arch_boot (entry, grub_mb2_tags);
|
|
||||||
|
|
||||||
/* Not reached. */
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
static grub_err_t
|
|
||||||
grub_mb2_unload (void)
|
|
||||||
{
|
|
||||||
struct multiboot2_tag_header *tag;
|
|
||||||
struct multiboot2_tag_header *tags =
|
|
||||||
(struct multiboot2_tag_header *) grub_mb2_tags;
|
|
||||||
|
|
||||||
/* Free all module memory in the tag list. */
|
|
||||||
for_each_tag (tag, tags)
|
|
||||||
{
|
|
||||||
if (tag->key == MULTIBOOT2_TAG_MODULE)
|
|
||||||
{
|
|
||||||
struct multiboot2_tag_module *module =
|
|
||||||
(struct multiboot2_tag_module *) tag;
|
|
||||||
grub_free ((void *) module->addr);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Allow architecture to un-reserve memory. */
|
|
||||||
grub_mb2_arch_unload (tags);
|
|
||||||
|
|
||||||
/* Free the tags themselves. */
|
|
||||||
grub_mb2_tags_free ();
|
|
||||||
|
|
||||||
grub_dl_unref (my_mod);
|
|
||||||
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
static grub_err_t
|
|
||||||
grub_mb2_load_other (grub_file_t file __attribute__ ((unused)),
|
|
||||||
void *buffer __attribute__ ((unused)))
|
|
||||||
{
|
|
||||||
/* XXX Create module tag here. */
|
|
||||||
return grub_error (GRUB_ERR_UNKNOWN_OS, "currently only ELF is supported");
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Create the tag containing the cmdline and the address of the module data. */
|
|
||||||
static grub_err_t
|
|
||||||
grub_mb2_tag_module_create (grub_addr_t modaddr, grub_size_t modsize,
|
|
||||||
char *type, int key, int argc, char *argv[])
|
|
||||||
{
|
|
||||||
struct multiboot2_tag_module *module;
|
|
||||||
grub_ssize_t argslen = 0;
|
|
||||||
grub_err_t err;
|
|
||||||
char *p;
|
|
||||||
grub_addr_t module_addr;
|
|
||||||
int i;
|
|
||||||
|
|
||||||
/* Allocate enough space for the arguments and spaces between them. */
|
|
||||||
for (i = 0; i < argc; i++)
|
|
||||||
argslen += grub_strlen (argv[i]) + 1;
|
|
||||||
|
|
||||||
/* Note: includes implicit 1-byte cmdline. */
|
|
||||||
err = grub_mb2_tag_alloc (&module_addr, key,
|
|
||||||
sizeof (struct multiboot2_tag_module) + argslen);
|
|
||||||
if (err)
|
|
||||||
return grub_errno;
|
|
||||||
|
|
||||||
module = (struct multiboot2_tag_module *) module_addr;
|
|
||||||
module->addr = modaddr;
|
|
||||||
module->size = modsize;
|
|
||||||
grub_strcpy(module->type, type);
|
|
||||||
|
|
||||||
/* Fill in the command line. */
|
|
||||||
p = module->cmdline;
|
|
||||||
for (i = 0; i < argc; i++)
|
|
||||||
{
|
|
||||||
p = grub_stpcpy (p, argv[i]);
|
|
||||||
*p++ = ' ';
|
|
||||||
}
|
|
||||||
module->cmdline[argslen] = '\0';
|
|
||||||
|
|
||||||
return GRUB_ERR_NONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Load ELF32 or ELF64. */
|
|
||||||
static grub_err_t
|
|
||||||
grub_mb2_load_elf (grub_elf_t elf, int argc, char *argv[])
|
|
||||||
{
|
|
||||||
grub_addr_t kern_base;
|
|
||||||
grub_size_t kern_size;
|
|
||||||
grub_err_t err;
|
|
||||||
|
|
||||||
if (grub_elf_is_elf32 (elf))
|
|
||||||
{
|
|
||||||
entry = elf->ehdr.ehdr32.e_entry;
|
|
||||||
err = grub_elf32_load (elf, grub_mb2_arch_elf32_hook, &kern_base,
|
|
||||||
&kern_size);
|
|
||||||
}
|
|
||||||
else if (grub_elf_is_elf64 (elf))
|
|
||||||
{
|
|
||||||
entry = elf->ehdr.ehdr64.e_entry;
|
|
||||||
err = grub_elf64_load (elf, grub_mb2_arch_elf64_hook, &kern_base,
|
|
||||||
&kern_size);
|
|
||||||
}
|
|
||||||
else
|
|
||||||
err = grub_error (GRUB_ERR_UNKNOWN_OS, "unknown ELF class");
|
|
||||||
|
|
||||||
if (err)
|
|
||||||
goto fail;
|
|
||||||
|
|
||||||
grub_dprintf ("loader", "Entry point is 0x%lx.\n", (unsigned long) entry);
|
|
||||||
|
|
||||||
grub_mb2_tag_module_create (kern_base, kern_size, "kernel",
|
|
||||||
MULTIBOOT2_TAG_MODULE, argc, argv);
|
|
||||||
|
|
||||||
fail:
|
|
||||||
return err;
|
|
||||||
}
|
|
||||||
|
|
||||||
void
|
|
||||||
grub_multiboot2 (int argc, char *argv[])
|
|
||||||
{
|
|
||||||
char *buffer;
|
|
||||||
grub_file_t file = 0;
|
|
||||||
grub_elf_t elf = 0;
|
|
||||||
struct multiboot2_header *header = 0;
|
|
||||||
char *p;
|
|
||||||
grub_ssize_t len;
|
|
||||||
grub_err_t err;
|
|
||||||
int header_found = 0;
|
|
||||||
|
|
||||||
grub_loader_unset ();
|
|
||||||
|
|
||||||
if (argc == 0)
|
|
||||||
{
|
|
||||||
grub_error (GRUB_ERR_BAD_ARGUMENT, "no kernel specified");
|
|
||||||
goto fail;
|
|
||||||
}
|
|
||||||
|
|
||||||
file = grub_gzfile_open (argv[0], 1);
|
|
||||||
if (! file)
|
|
||||||
{
|
|
||||||
grub_error (GRUB_ERR_BAD_ARGUMENT, "couldn't open file");
|
|
||||||
goto fail;
|
|
||||||
}
|
|
||||||
|
|
||||||
buffer = grub_malloc (MULTIBOOT2_HEADER_SEARCH);
|
|
||||||
if (! buffer)
|
|
||||||
return;
|
|
||||||
|
|
||||||
len = grub_file_read (file, buffer, MULTIBOOT2_HEADER_SEARCH);
|
|
||||||
if (len < 32)
|
|
||||||
{
|
|
||||||
grub_error (GRUB_ERR_BAD_OS, "file too small");
|
|
||||||
goto fail;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Look for the multiboot header in the buffer. The header should
|
|
||||||
be at least 8 bytes and aligned on a 8-byte boundary. */
|
|
||||||
for (p = buffer; p <= buffer + len - 8; p += 8)
|
|
||||||
{
|
|
||||||
header = (struct multiboot2_header *) p;
|
|
||||||
if (header->magic == MULTIBOOT2_HEADER_MAGIC)
|
|
||||||
{
|
|
||||||
header_found = 1;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (! header_found)
|
|
||||||
grub_dprintf ("loader", "No multiboot 2 header found.\n");
|
|
||||||
|
|
||||||
|
|
||||||
/* Create the basic tags. */
|
|
||||||
grub_dprintf ("loader", "Creating multiboot 2 tags\n");
|
|
||||||
grub_mb2_tags_create ();
|
|
||||||
|
|
||||||
/* Load the kernel and create its tag. */
|
|
||||||
elf = grub_elf_file (file);
|
|
||||||
if (elf)
|
|
||||||
{
|
|
||||||
grub_dprintf ("loader", "Loading ELF multiboot 2 file.\n");
|
|
||||||
err = grub_mb2_load_elf (elf, argc-1, &argv[1]);
|
|
||||||
grub_elf_close (elf);
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
grub_errno = 0;
|
|
||||||
grub_dprintf ("loader", "Loading non-ELF multiboot 2 file.\n");
|
|
||||||
|
|
||||||
if (header)
|
|
||||||
err = grub_mb2_load_other (file, header);
|
|
||||||
else
|
|
||||||
err = grub_error (GRUB_ERR_BAD_OS,
|
|
||||||
"need multiboot 2 header to load non-ELF files");
|
|
||||||
grub_file_close (file);
|
|
||||||
}
|
|
||||||
|
|
||||||
grub_free (buffer);
|
|
||||||
|
|
||||||
if (err)
|
|
||||||
goto fail;
|
|
||||||
|
|
||||||
/* Good to go. */
|
|
||||||
grub_loader_set (grub_mb2_boot, grub_mb2_unload, 1);
|
|
||||||
return;
|
|
||||||
|
|
||||||
fail:
|
|
||||||
grub_mb2_tags_free ();
|
|
||||||
grub_dl_unref (my_mod);
|
|
||||||
}
|
|
||||||
|
|
||||||
void
|
|
||||||
grub_module2 (int argc, char *argv[])
|
|
||||||
{
|
|
||||||
grub_file_t file;
|
|
||||||
grub_addr_t modaddr = 0;
|
|
||||||
grub_ssize_t modsize = 0;
|
|
||||||
grub_err_t err;
|
|
||||||
|
|
||||||
if (argc == 0)
|
|
||||||
{
|
|
||||||
grub_error (GRUB_ERR_BAD_ARGUMENT, "no module specified");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (argc == 1)
|
|
||||||
{
|
|
||||||
grub_error (GRUB_ERR_BAD_ARGUMENT, "no module type specified");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (entry == 0)
|
|
||||||
{
|
|
||||||
grub_error (GRUB_ERR_BAD_ARGUMENT,
|
|
||||||
"you need to load the multiboot kernel first");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Load module data. */
|
|
||||||
file = grub_gzfile_open (argv[0], 1);
|
|
||||||
if (! file)
|
|
||||||
goto out;
|
|
||||||
|
|
||||||
modsize = grub_file_size (file);
|
|
||||||
err = grub_mb2_arch_module_alloc (modsize, &modaddr);
|
|
||||||
if (err)
|
|
||||||
goto out;
|
|
||||||
|
|
||||||
grub_dprintf ("loader", "Loading module at 0x%x - 0x%x\n", modaddr,
|
|
||||||
modaddr + modsize);
|
|
||||||
if (grub_file_read (file, (void *) modaddr, modsize) != modsize)
|
|
||||||
{
|
|
||||||
grub_error (GRUB_ERR_FILE_READ_ERROR, "couldn't read file");
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Create the module tag. */
|
|
||||||
err = grub_mb2_tag_module_create (modaddr, modsize,
|
|
||||||
argv[1], MULTIBOOT2_TAG_MODULE,
|
|
||||||
argc-2, &argv[2]);
|
|
||||||
if (err)
|
|
||||||
goto out;
|
|
||||||
|
|
||||||
out:
|
|
||||||
grub_error_push ();
|
|
||||||
|
|
||||||
if (file)
|
|
||||||
grub_file_close (file);
|
|
||||||
|
|
||||||
if (modaddr)
|
|
||||||
grub_mb2_arch_module_free (modaddr, modsize);
|
|
||||||
|
|
||||||
grub_error_pop ();
|
|
||||||
}
|
|
||||||
|
|
@ -1,7 +1,7 @@
|
||||||
/* multiboot_loader.c - boot multiboot 1 or 2 OS image */
|
/* multiboot_loader.c - boot multiboot kernel image */
|
||||||
/*
|
/*
|
||||||
* GRUB -- GRand Unified Bootloader
|
* GRUB -- GRand Unified Bootloader
|
||||||
* Copyright (C) 2007,2008,2009 Free Software Foundation, Inc.
|
* Copyright (C) 2007,2008,2009,2010 Free Software Foundation, Inc.
|
||||||
*
|
*
|
||||||
* GRUB is free software: you can redistribute it and/or modify
|
* GRUB is free software: you can redistribute it and/or modify
|
||||||
* it under the terms of the GNU General Public License as published by
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
|
@ -18,8 +18,6 @@
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#include <grub/multiboot.h>
|
#include <grub/multiboot.h>
|
||||||
#include <grub/multiboot2.h>
|
|
||||||
#include <multiboot2.h>
|
|
||||||
#include <grub/elf.h>
|
#include <grub/elf.h>
|
||||||
#include <grub/file.h>
|
#include <grub/file.h>
|
||||||
#include <grub/err.h>
|
#include <grub/err.h>
|
||||||
|
|
@ -31,15 +29,6 @@
|
||||||
|
|
||||||
grub_dl_t my_mod;
|
grub_dl_t my_mod;
|
||||||
|
|
||||||
/* This tracks which version of multiboot to use when using
|
|
||||||
* the module command. By default use multiboot version 1.
|
|
||||||
* values:
|
|
||||||
* 1 - Multiboot version 1
|
|
||||||
* 2 - Multiboot version 2
|
|
||||||
*/
|
|
||||||
|
|
||||||
static unsigned int module_version_status = 1;
|
|
||||||
|
|
||||||
static int
|
static int
|
||||||
find_multi_boot1_header (grub_file_t file)
|
find_multi_boot1_header (grub_file_t file)
|
||||||
{
|
{
|
||||||
|
|
@ -69,34 +58,6 @@ find_multi_boot1_header (grub_file_t file)
|
||||||
return found_status;
|
return found_status;
|
||||||
}
|
}
|
||||||
|
|
||||||
static int
|
|
||||||
find_multi_boot2_header (grub_file_t file)
|
|
||||||
{
|
|
||||||
struct multiboot_header *header;
|
|
||||||
char buffer[MULTIBOOT_SEARCH];
|
|
||||||
int found_status = 0;
|
|
||||||
grub_ssize_t len;
|
|
||||||
|
|
||||||
len = grub_file_read (file, buffer, MULTIBOOT_SEARCH);
|
|
||||||
if (len < 32)
|
|
||||||
return found_status;
|
|
||||||
|
|
||||||
/* Look for the multiboot header in the buffer. The header should
|
|
||||||
be at least 8 bytes and aligned on a 8-byte boundary. */
|
|
||||||
for (header = (struct multiboot_header *) buffer;
|
|
||||||
((char *) header <= buffer + len - 8) || (header = 0);
|
|
||||||
header = (struct multiboot_header *) ((char *) header + 8))
|
|
||||||
{
|
|
||||||
if (header->magic == MULTIBOOT2_HEADER_MAGIC)
|
|
||||||
{
|
|
||||||
found_status = 1;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return found_status;
|
|
||||||
}
|
|
||||||
|
|
||||||
static grub_err_t
|
static grub_err_t
|
||||||
grub_cmd_multiboot_loader (grub_command_t cmd __attribute__ ((unused)),
|
grub_cmd_multiboot_loader (grub_command_t cmd __attribute__ ((unused)),
|
||||||
int argc, char *argv[])
|
int argc, char *argv[])
|
||||||
|
|
@ -122,8 +83,6 @@ grub_cmd_multiboot_loader (grub_command_t cmd __attribute__ ((unused)),
|
||||||
/* find which header is in the file */
|
/* find which header is in the file */
|
||||||
if (find_multi_boot1_header (file))
|
if (find_multi_boot1_header (file))
|
||||||
header_multi_ver_found = 1;
|
header_multi_ver_found = 1;
|
||||||
else if (find_multi_boot2_header (file))
|
|
||||||
header_multi_ver_found = 2;
|
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
grub_error (GRUB_ERR_BAD_OS, "multiboot header not found");
|
grub_error (GRUB_ERR_BAD_OS, "multiboot header not found");
|
||||||
|
|
@ -136,25 +95,9 @@ grub_cmd_multiboot_loader (grub_command_t cmd __attribute__ ((unused)),
|
||||||
|
|
||||||
/* Launch multi boot with header */
|
/* Launch multi boot with header */
|
||||||
|
|
||||||
/* XXX Find a better way to identify this.
|
|
||||||
This is for i386-pc */
|
|
||||||
#if defined(GRUB_MACHINE_PCBIOS) || defined(GRUB_MACHINE_COREBOOT) || \
|
|
||||||
defined(GRUB_MACHINE_QEMU)
|
|
||||||
if (header_multi_ver_found == 1)
|
|
||||||
{
|
|
||||||
grub_dprintf ("multiboot_loader",
|
grub_dprintf ("multiboot_loader",
|
||||||
"Launching multiboot 1 grub_multiboot() function\n");
|
"Launching multiboot 1 grub_multiboot() function\n");
|
||||||
grub_multiboot (argc, argv);
|
grub_multiboot (argc, argv);
|
||||||
module_version_status = 1;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
if (header_multi_ver_found == 0 || header_multi_ver_found == 2)
|
|
||||||
{
|
|
||||||
grub_dprintf ("multiboot_loader",
|
|
||||||
"Launching multiboot 2 grub_multiboot2() function\n");
|
|
||||||
grub_multiboot2 (argc, argv);
|
|
||||||
module_version_status = 2;
|
|
||||||
}
|
|
||||||
|
|
||||||
return grub_errno;
|
return grub_errno;
|
||||||
|
|
||||||
|
|
@ -172,21 +115,9 @@ grub_cmd_module_loader (grub_command_t cmd __attribute__ ((unused)),
|
||||||
int argc, char *argv[])
|
int argc, char *argv[])
|
||||||
{
|
{
|
||||||
|
|
||||||
#if defined(GRUB_MACHINE_PCBIOS) || defined(GRUB_MACHINE_COREBOOT) || \
|
|
||||||
defined(GRUB_MACHINE_QEMU)
|
|
||||||
if (module_version_status == 1)
|
|
||||||
{
|
|
||||||
grub_dprintf("multiboot_loader",
|
grub_dprintf("multiboot_loader",
|
||||||
"Launching multiboot 1 grub_module() function\n");
|
"Launching multiboot 1 grub_module() function\n");
|
||||||
grub_module (argc, argv);
|
grub_module (argc, argv);
|
||||||
}
|
|
||||||
#endif
|
|
||||||
if (module_version_status == 2)
|
|
||||||
{
|
|
||||||
grub_dprintf("multiboot_loader",
|
|
||||||
"Launching multiboot 2 grub_module2() function\n");
|
|
||||||
grub_module2 (argc, argv);
|
|
||||||
}
|
|
||||||
|
|
||||||
return grub_errno;
|
return grub_errno;
|
||||||
}
|
}
|
||||||
|
|
@ -196,8 +127,14 @@ static grub_command_t cmd_multiboot, cmd_module;
|
||||||
GRUB_MOD_INIT(multiboot)
|
GRUB_MOD_INIT(multiboot)
|
||||||
{
|
{
|
||||||
cmd_multiboot =
|
cmd_multiboot =
|
||||||
|
#ifdef GRUB_USE_MULTIBOOT2
|
||||||
|
grub_register_command ("multiboot2", grub_cmd_multiboot_loader,
|
||||||
|
0, "Load a multiboot 2 kernel.");
|
||||||
|
#else
|
||||||
grub_register_command ("multiboot", grub_cmd_multiboot_loader,
|
grub_register_command ("multiboot", grub_cmd_multiboot_loader,
|
||||||
0, "Load a multiboot kernel.");
|
0, "Load a multiboot kernel.");
|
||||||
|
#endif
|
||||||
|
|
||||||
cmd_module =
|
cmd_module =
|
||||||
grub_register_command ("module", grub_cmd_module_loader,
|
grub_register_command ("module", grub_cmd_module_loader,
|
||||||
0, "Load a multiboot module.");
|
0, "Load a multiboot module.");
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue