Brian Swetland
71b934bd5b
- bootloader, kernel, userboot, and devmgr now support FLAG_EXTRA for container headers as well as item headers - bootloader generates new style headers for prepended bootdata items when it detects a new style container header - mkbootfs generates large container headers when generating bootdata images with crc32 enabled - bootloader version bumped to 0.6.0 to mark the point of compatibility needed for kernels once we throw the switch to use new headers exclusively Change-Id: Ifcb78d62f882ddd869da8d73ffe774a0f7937bc0
90 linhas
2.1 KiB
ArmAsm
90 linhas
2.1 KiB
ArmAsm
// Copyright 2016 The Fuchsia Authors
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// Copyright (c) 2016 Google, Inc.
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//
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file or at
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// https://opensource.org/licenses/MIT
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#include <asm.h>
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#include <arch/x86/asm.h>
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/* The magic number for the Multiboot header. */
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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/* The flags for the Multiboot header. */
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#define MULTIBOOT_HEADER_FLAGS 0x00010002
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#include <magenta/boot/bootdata.h>
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.section .text.boot0, "ax", @progbits
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LOCAL_DATA(_setup_start)
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#if ENABLE_NEW_BOOTDATA
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/* bootdata file header */
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.int BOOTDATA_CONTAINER
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.int PHYS(__data_end) - PHYS_LOAD_ADDRESS - 32
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.int BOOTDATA_MAGIC
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.int BOOTDATA_FLAG_EXTRA
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.int 0
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.int 0
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.int BOOTITEM_MAGIC
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.int BOOTITEM_NO_CRC32
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/* bootdata kernel header */
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.int BOOTDATA_KERNEL
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.int PHYS(__data_end) - PHYS_LOAD_ADDRESS - 64
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.int 0
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.int BOOTDATA_FLAG_EXTRA
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.int 0
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.int 0
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.int BOOTITEM_MAGIC
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.int BOOTITEM_NO_CRC32
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#else
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/* bootdata file header */
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.int BOOTDATA_CONTAINER
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.int PHYS(__data_end) - PHYS_LOAD_ADDRESS - 16
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.int BOOTDATA_MAGIC
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.int 0
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/* bootdata kernel header */
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.int BOOTDATA_KERNEL
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.int PHYS(__data_end) - PHYS_LOAD_ADDRESS - 32
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.int 0
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.int 0
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#endif
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.quad PHYS(_entry64)
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.quad 0
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.align 8
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LOCAL_DATA(_multiboot_header)
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/* magic */
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.int MULTIBOOT_HEADER_MAGIC
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LOCAL_DATA(_multiboot_flags)
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/* flags */
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.int MULTIBOOT_HEADER_FLAGS
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LOCAL_DATA(_multiboot_checksum)
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/* checksum */
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.int -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)
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LOCAL_DATA(_multiboot_header_addr)
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/* header_addr */
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.int PHYS_LOAD_ADDRESS - PHYS_HEADER_LOAD_OFFSET + (_multiboot_header - _setup_start)
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LOCAL_DATA(_multiboot_load_addr)
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/* load_addr */
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.int PHYS_LOAD_ADDRESS - PHYS_HEADER_LOAD_OFFSET
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LOCAL_DATA(_multiboot_load_end_addr)
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/* load_end_addr */
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.int PHYS(__data_end)
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LOCAL_DATA(_multiboot_bss_end_addr)
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/* bss_end_addr */
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.int PHYS(__bss_end)
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LOCAL_DATA(_multiboot_entry)
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/* entry_addr */
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.int PHYS(_multiboot_start)
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