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[src/trunk]: src/sys/arch/i386 Add multiboot 2 support to x86 bootloaders
details: https://anonhg.NetBSD.org/src/rev/8e976a32f12a
branches: trunk
changeset: 459467:8e976a32f12a
user: manu <manu%NetBSD.org@localhost>
date: Fri Sep 13 02:19:45 2019 +0000
description:
Add multiboot 2 support to x86 bootloaders
multiboot 2 is required to boot Xen on an EFI system.
This also require a kernel patch for properly discovering
the ACPI RSDP, which is available after 20190912, in
src/sys/arch/x86/acpi/acpi_machdep.c 1.26-1.28
There are a few missing bit in this multiboot 2 implementation
(which are unused by Xen):
- Header tags Address, Freambuffer, and Relocatable are ignored
- Tags APM and Network are not provided
- Tags ACPI old and ACP new are only provided for ACPI boot
- Tag boot device does not provides the subpart (BSD disklabel partition)
Notes:
- multiboot2 is disabled in dosboot, otherwise the binary
gets too big and build fails.
- in src/sys/arch/i386/stand/efiboot, consinit() is renamed
as efi_consinit() to avoid prototype conflicts in src/sys/sys/systm.h
diffstat:
sys/arch/i386/include/Makefile | 4 +-
sys/arch/i386/include/multiboot2.h | 417 +++++
sys/arch/i386/stand/boot/Makefile.boot | 5 +-
sys/arch/i386/stand/dosboot/Makefile | 5 +-
sys/arch/i386/stand/efiboot/Makefile.efiboot | 3 +-
sys/arch/i386/stand/efiboot/boot.c | 4 +-
sys/arch/i386/stand/efiboot/bootia32/Makefile | 6 +-
sys/arch/i386/stand/efiboot/bootia32/efibootia32.c | 23 +-
sys/arch/i386/stand/efiboot/bootia32/multiboot32.S | 27 +
sys/arch/i386/stand/efiboot/bootx64/Makefile | 4 +-
sys/arch/i386/stand/efiboot/bootx64/efibootx64.c | 26 +-
sys/arch/i386/stand/efiboot/bootx64/multiboot64.S | 29 +
sys/arch/i386/stand/efiboot/efiboot.c | 16 +-
sys/arch/i386/stand/efiboot/efiboot.h | 7 +-
sys/arch/i386/stand/efiboot/eficons.c | 6 +-
sys/arch/i386/stand/efiboot/efimemory.c | 36 +-
sys/arch/i386/stand/lib/Makefile | 3 +-
sys/arch/i386/stand/lib/biosdisk.c | 16 +-
sys/arch/i386/stand/lib/biosdisk.h | 5 +-
sys/arch/i386/stand/lib/bootinfo_memmap.c | 14 +-
sys/arch/i386/stand/lib/exec.c | 102 +-
sys/arch/i386/stand/lib/exec_multiboot1.c | 159 +
sys/arch/i386/stand/lib/exec_multiboot2.c | 1643 ++++++++++++++++++++
sys/arch/i386/stand/lib/libi386.h | 26 +-
sys/arch/i386/stand/lib/multiboot.S | 10 +-
sys/arch/i386/stand/lib/pread.c | 7 +-
sys/arch/i386/stand/netboot/Makefile.netboot | 3 +-
sys/arch/i386/stand/pxeboot/Makefile | 5 +-
28 files changed, 2481 insertions(+), 130 deletions(-)
diffs (truncated from 3159 to 300 lines):
diff -r 53c889496abb -r 8e976a32f12a sys/arch/i386/include/Makefile
--- a/sys/arch/i386/include/Makefile Fri Sep 13 01:34:19 2019 +0000
+++ b/sys/arch/i386/include/Makefile Fri Sep 13 02:19:45 2019 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.49 2018/07/12 10:46:44 maxv Exp $
+# $NetBSD: Makefile,v 1.50 2019/09/13 02:19:45 manu Exp $
INCSDIR= /usr/include/i386
@@ -15,7 +15,7 @@
joystick.h \
kcore.h \
limits.h lock.h \
- math.h mcontext.h mutex.h mtrr.h multiboot.h \
+ math.h mcontext.h mutex.h mtrr.h multiboot.h multiboot2.h \
param.h pcb.h pio.h pmap.h proc.h profile.h psl.h \
pte.h ptrace.h \
reg.h rwlock.h \
diff -r 53c889496abb -r 8e976a32f12a sys/arch/i386/include/multiboot2.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/i386/include/multiboot2.h Fri Sep 13 02:19:45 2019 +0000
@@ -0,0 +1,417 @@
+/* multiboot2.h - Multiboot 2 header file. */
+/* Copyright (C) 1999,2003,2007,2008,2009,2010 Free Software Foundation, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL ANY
+ * DEVELOPER OR DISTRIBUTOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+ * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef MULTIBOOT_HEADER
+#define MULTIBOOT_HEADER 1
+
+/* How many bytes from the start of the file we search for the header. */
+#define MULTIBOOT_SEARCH 32768
+#define MULTIBOOT_HEADER_ALIGN 8
+
+/* The magic field should contain this. */
+#define MULTIBOOT2_HEADER_MAGIC 0xe85250d6
+
+/* This should be in %eax. */
+#define MULTIBOOT2_BOOTLOADER_MAGIC 0x36d76289
+
+/* Alignment of multiboot modules. */
+#define MULTIBOOT_MOD_ALIGN 0x00001000
+
+/* Alignment of the multiboot info structure. */
+#define MULTIBOOT_INFO_ALIGN 0x00000008
+
+/* Flags set in the 'flags' member of the multiboot header. */
+
+#define MULTIBOOT_TAG_ALIGN 8
+#define MULTIBOOT_TAG_TYPE_END 0
+#define MULTIBOOT_TAG_TYPE_CMDLINE 1
+#define MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME 2
+#define MULTIBOOT_TAG_TYPE_MODULE 3
+#define MULTIBOOT_TAG_TYPE_BASIC_MEMINFO 4
+#define MULTIBOOT_TAG_TYPE_BOOTDEV 5
+#define MULTIBOOT_TAG_TYPE_MMAP 6
+#define MULTIBOOT_TAG_TYPE_VBE 7
+#define MULTIBOOT_TAG_TYPE_FRAMEBUFFER 8
+#define MULTIBOOT_TAG_TYPE_ELF_SECTIONS 9
+#define MULTIBOOT_TAG_TYPE_APM 10
+#define MULTIBOOT_TAG_TYPE_EFI32 11
+#define MULTIBOOT_TAG_TYPE_EFI64 12
+#define MULTIBOOT_TAG_TYPE_SMBIOS 13
+#define MULTIBOOT_TAG_TYPE_ACPI_OLD 14
+#define MULTIBOOT_TAG_TYPE_ACPI_NEW 15
+#define MULTIBOOT_TAG_TYPE_NETWORK 16
+#define MULTIBOOT_TAG_TYPE_EFI_MMAP 17
+#define MULTIBOOT_TAG_TYPE_EFI_BS 18
+#define MULTIBOOT_TAG_TYPE_EFI32_IH 19
+#define MULTIBOOT_TAG_TYPE_EFI64_IH 20
+#define MULTIBOOT_TAG_TYPE_LOAD_BASE_ADDR 21
+
+#define MULTIBOOT_HEADER_TAG_END 0
+#define MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST 1
+#define MULTIBOOT_HEADER_TAG_ADDRESS 2
+#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS 3
+#define MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS 4
+#define MULTIBOOT_HEADER_TAG_FRAMEBUFFER 5
+#define MULTIBOOT_HEADER_TAG_MODULE_ALIGN 6
+#define MULTIBOOT_HEADER_TAG_EFI_BS 7
+#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI32 8
+#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI64 9
+#define MULTIBOOT_HEADER_TAG_RELOCATABLE 10
+
+#define MULTIBOOT_ARCHITECTURE_I386 0
+#define MULTIBOOT_ARCHITECTURE_MIPS32 4
+#define MULTIBOOT_HEADER_TAG_OPTIONAL 1
+
+#define MULTIBOOT_LOAD_PREFERENCE_NONE 0
+#define MULTIBOOT_LOAD_PREFERENCE_LOW 1
+#define MULTIBOOT_LOAD_PREFERENCE_HIGH 2
+
+#define MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED 1
+#define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2
+
+#ifndef ASM_FILE
+
+typedef unsigned char multiboot_uint8_t;
+typedef unsigned short multiboot_uint16_t;
+typedef unsigned int multiboot_uint32_t;
+typedef unsigned long long multiboot_uint64_t;
+
+struct multiboot_header
+{
+ /* Must be MULTIBOOT_MAGIC - see above. */
+ multiboot_uint32_t magic;
+
+ /* ISA */
+ multiboot_uint32_t architecture;
+
+ /* Total header length. */
+ multiboot_uint32_t header_length;
+
+ /* The above fields plus this one must equal 0 mod 2^32. */
+ multiboot_uint32_t checksum;
+};
+
+struct multiboot_header_tag
+{
+ multiboot_uint16_t type;
+ multiboot_uint16_t flags;
+ multiboot_uint32_t size;
+};
+
+struct multiboot_header_tag_information_request
+{
+ multiboot_uint16_t type;
+ multiboot_uint16_t flags;
+ multiboot_uint32_t size;
+ multiboot_uint32_t requests[0];
+};
+
+struct multiboot_header_tag_address
+{
+ multiboot_uint16_t type;
+ multiboot_uint16_t flags;
+ multiboot_uint32_t size;
+ multiboot_uint32_t header_addr;
+ multiboot_uint32_t load_addr;
+ multiboot_uint32_t load_end_addr;
+ multiboot_uint32_t bss_end_addr;
+};
+
+struct multiboot_header_tag_entry_address
+{
+ multiboot_uint16_t type;
+ multiboot_uint16_t flags;
+ multiboot_uint32_t size;
+ multiboot_uint32_t entry_addr;
+};
+
+struct multiboot_header_tag_console_flags
+{
+ multiboot_uint16_t type;
+ multiboot_uint16_t flags;
+ multiboot_uint32_t size;
+ multiboot_uint32_t console_flags;
+};
+
+struct multiboot_header_tag_framebuffer
+{
+ multiboot_uint16_t type;
+ multiboot_uint16_t flags;
+ multiboot_uint32_t size;
+ multiboot_uint32_t width;
+ multiboot_uint32_t height;
+ multiboot_uint32_t depth;
+};
+
+struct multiboot_header_tag_module_align
+{
+ multiboot_uint16_t type;
+ multiboot_uint16_t flags;
+ multiboot_uint32_t size;
+};
+
+struct multiboot_header_tag_relocatable
+{
+ multiboot_uint16_t type;
+ multiboot_uint16_t flags;
+ multiboot_uint32_t size;
+ multiboot_uint32_t min_addr;
+ multiboot_uint32_t max_addr;
+ multiboot_uint32_t align;
+ multiboot_uint32_t preference;
+};
+
+struct multiboot_color
+{
+ multiboot_uint8_t red;
+ multiboot_uint8_t green;
+ multiboot_uint8_t blue;
+};
+
+struct multiboot_mmap_entry
+{
+ multiboot_uint64_t addr;
+ multiboot_uint64_t len;
+#define MULTIBOOT_MEMORY_AVAILABLE 1
+#define MULTIBOOT_MEMORY_RESERVED 2
+#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3
+#define MULTIBOOT_MEMORY_NVS 4
+#define MULTIBOOT_MEMORY_BADRAM 5
+ multiboot_uint32_t type;
+ multiboot_uint32_t zero;
+};
+typedef struct multiboot_mmap_entry multiboot_memory_map_t;
+
+struct multiboot_tag
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
+};
+
+struct multiboot_tag_string
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
+ char string[0];
+};
+
+struct multiboot_tag_module
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
+ multiboot_uint32_t mod_start;
+ multiboot_uint32_t mod_end;
+ char cmdline[0];
+};
+
+struct multiboot_tag_basic_meminfo
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
+ multiboot_uint32_t mem_lower;
+ multiboot_uint32_t mem_upper;
+};
+
+struct multiboot_tag_bootdev
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
+ multiboot_uint32_t biosdev;
+ multiboot_uint32_t slice;
+ multiboot_uint32_t part;
+};
+
+struct multiboot_tag_mmap
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
+ multiboot_uint32_t entry_size;
+ multiboot_uint32_t entry_version;
+ struct multiboot_mmap_entry entries[0];
+};
+
+struct multiboot_vbe_info_block
+{
+ multiboot_uint8_t external_specification[512];
+};
+
+struct multiboot_vbe_mode_info_block
+{
+ multiboot_uint8_t external_specification[256];
+};
+
+struct multiboot_tag_vbe
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
+
+ multiboot_uint16_t vbe_mode;
+ multiboot_uint16_t vbe_interface_seg;
+ multiboot_uint16_t vbe_interface_off;
+ multiboot_uint16_t vbe_interface_len;
+
+ struct multiboot_vbe_info_block vbe_control_info;
+ struct multiboot_vbe_mode_info_block vbe_mode_info;
+};
+
+struct multiboot_tag_framebuffer_common
+{
+ multiboot_uint32_t type;
+ multiboot_uint32_t size;
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