mirror of https://gitee.com/openkylin/qemu.git
Simple u-boot image loading support.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2472 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook
parent
35f1de3192
commit
1c7b3754f6
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@ -71,7 +71,9 @@ void arm_load_kernel(CPUState *env, int ram_size, const char *kernel_filename,
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int kernel_size;
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int initrd_size;
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int n;
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uint64_t entry;
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int is_linux = 0;
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uint64_t elf_entry;
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target_ulong entry;
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/* Load the kernel. */
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if (!kernel_filename) {
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@ -79,19 +81,27 @@ void arm_load_kernel(CPUState *env, int ram_size, const char *kernel_filename,
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exit(1);
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}
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kernel_size = load_elf(kernel_filename, 0, &entry);
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if (kernel_size >= 0) {
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/* An ELF image. Jump to the entry point. */
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/* Assume that raw images are linux kernels, and ELF images are not. */
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kernel_size = load_elf(kernel_filename, 0, &elf_entry);
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entry = elf_entry;
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if (kernel_size < 0) {
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kernel_size = load_uboot(kernel_filename, &entry, &is_linux);
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}
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if (kernel_size < 0) {
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kernel_size = load_image(kernel_filename,
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phys_ram_base + KERNEL_LOAD_ADDR);
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entry = KERNEL_LOAD_ADDR;
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is_linux = 1;
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}
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if (kernel_size < 0) {
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fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
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exit(1);
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}
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if (!is_linux) {
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/* Jump to the entry point. */
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env->regs[15] = entry & 0xfffffffe;
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env->thumb = entry & 1;
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} else {
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/* Raw binary image. Assume it is a Linux zImage. */
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kernel_size = load_image(kernel_filename,
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phys_ram_base + KERNEL_LOAD_ADDR);
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if (kernel_size < 0) {
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fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
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exit(1);
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}
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if (initrd_filename) {
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initrd_size = load_image(initrd_filename,
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phys_ram_base + INITRD_LOAD_ADDR);
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@ -106,7 +116,7 @@ void arm_load_kernel(CPUState *env, int ram_size, const char *kernel_filename,
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bootloader[1] |= board_id & 0xff;
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bootloader[2] |= (board_id >> 8) & 0xff;
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bootloader[5] = KERNEL_ARGS_ADDR;
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bootloader[6] = KERNEL_LOAD_ADDR;
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bootloader[6] = entry;
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for (n = 0; n < sizeof(bootloader) / 4; n++)
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stl_raw(phys_ram_base + (n * 4), bootloader[n]);
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set_kernel_args(ram_size, initrd_size, kernel_cmdline);
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78
loader.c
78
loader.c
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@ -23,6 +23,7 @@
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*/
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#include "vl.h"
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#include "disas.h"
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#include "uboot_image.h"
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/* return the size or -1 if error */
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int get_image_size(const char *filename)
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@ -241,3 +242,80 @@ int load_elf(const char *filename, int64_t virt_to_phys_addend,
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close(fd);
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return -1;
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}
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static void bswap_uboot_header(uboot_image_header_t *hdr)
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{
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#ifndef WORDS_BIGENDIAN
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bswap32s(&hdr->ih_magic);
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bswap32s(&hdr->ih_hcrc);
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bswap32s(&hdr->ih_time);
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bswap32s(&hdr->ih_size);
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bswap32s(&hdr->ih_load);
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bswap32s(&hdr->ih_ep);
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bswap32s(&hdr->ih_dcrc);
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#endif
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}
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/* Load a U-Boot image. */
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int load_uboot(const char *filename, target_ulong *ep, int *is_linux)
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{
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int fd;
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int size;
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uboot_image_header_t h;
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uboot_image_header_t *hdr = &h;
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uint8_t *data = NULL;
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fd = open(filename, O_RDONLY | O_BINARY);
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if (fd < 0)
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return -1;
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size = read(fd, hdr, sizeof(uboot_image_header_t));
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if (size < 0)
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goto fail;
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bswap_uboot_header(hdr);
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if (hdr->ih_magic != IH_MAGIC)
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goto fail;
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/* TODO: Implement Multi-File images. */
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if (hdr->ih_type == IH_TYPE_MULTI) {
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fprintf(stderr, "Unable to load multi-file u-boot images\n");
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goto fail;
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}
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/* TODO: Implement compressed images. */
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if (hdr->ih_comp != IH_COMP_NONE) {
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fprintf(stderr, "Unable to load compressed u-boot images\n");
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goto fail;
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}
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/* TODO: Check CPU type. */
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if (is_linux) {
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if (hdr->ih_type == IH_TYPE_KERNEL && hdr->ih_os == IH_OS_LINUX)
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*is_linux = 1;
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else
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*is_linux = 0;
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}
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*ep = hdr->ih_ep;
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data = qemu_malloc(hdr->ih_size);
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if (!data)
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goto fail;
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if (read(fd, data, hdr->ih_size) != hdr->ih_size) {
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fprintf(stderr, "Error reading file\n");
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goto fail;
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}
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cpu_physical_memory_write_rom(hdr->ih_load, data, hdr->ih_size);
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return hdr->ih_size;
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fail:
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if (data)
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qemu_free(data);
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close(fd);
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return -1;
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}
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@ -0,0 +1,160 @@
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/*
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* (C) Copyright 2000-2005
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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********************************************************************
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* NOTE: This header file defines an interface to U-Boot. Including
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* this (unmodified) header file in another file is considered normal
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* use of U-Boot, and does *not* fall under the heading of "derived
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* work".
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********************************************************************
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*/
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#ifndef __UBOOT_IMAGE_H__
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#define __UBOOT_IMAGE_H__
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/*
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* Operating System Codes
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*/
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#define IH_OS_INVALID 0 /* Invalid OS */
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#define IH_OS_OPENBSD 1 /* OpenBSD */
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#define IH_OS_NETBSD 2 /* NetBSD */
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#define IH_OS_FREEBSD 3 /* FreeBSD */
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#define IH_OS_4_4BSD 4 /* 4.4BSD */
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#define IH_OS_LINUX 5 /* Linux */
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#define IH_OS_SVR4 6 /* SVR4 */
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#define IH_OS_ESIX 7 /* Esix */
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#define IH_OS_SOLARIS 8 /* Solaris */
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#define IH_OS_IRIX 9 /* Irix */
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#define IH_OS_SCO 10 /* SCO */
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#define IH_OS_DELL 11 /* Dell */
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#define IH_OS_NCR 12 /* NCR */
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#define IH_OS_LYNXOS 13 /* LynxOS */
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#define IH_OS_VXWORKS 14 /* VxWorks */
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#define IH_OS_PSOS 15 /* pSOS */
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#define IH_OS_QNX 16 /* QNX */
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#define IH_OS_U_BOOT 17 /* Firmware */
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#define IH_OS_RTEMS 18 /* RTEMS */
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#define IH_OS_ARTOS 19 /* ARTOS */
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#define IH_OS_UNITY 20 /* Unity OS */
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/*
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* CPU Architecture Codes (supported by Linux)
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*/
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#define IH_CPU_INVALID 0 /* Invalid CPU */
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#define IH_CPU_ALPHA 1 /* Alpha */
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#define IH_CPU_ARM 2 /* ARM */
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#define IH_CPU_I386 3 /* Intel x86 */
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#define IH_CPU_IA64 4 /* IA64 */
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#define IH_CPU_MIPS 5 /* MIPS */
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#define IH_CPU_MIPS64 6 /* MIPS 64 Bit */
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#define IH_CPU_PPC 7 /* PowerPC */
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#define IH_CPU_S390 8 /* IBM S390 */
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#define IH_CPU_SH 9 /* SuperH */
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#define IH_CPU_SPARC 10 /* Sparc */
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#define IH_CPU_SPARC64 11 /* Sparc 64 Bit */
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#define IH_CPU_M68K 12 /* M68K */
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#define IH_CPU_NIOS 13 /* Nios-32 */
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#define IH_CPU_MICROBLAZE 14 /* MicroBlaze */
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#define IH_CPU_NIOS2 15 /* Nios-II */
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#define IH_CPU_BLACKFIN 16 /* Blackfin */
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#define IH_CPU_AVR32 17 /* AVR32 */
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/*
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* Image Types
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*
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* "Standalone Programs" are directly runnable in the environment
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* provided by U-Boot; it is expected that (if they behave
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* well) you can continue to work in U-Boot after return from
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* the Standalone Program.
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* "OS Kernel Images" are usually images of some Embedded OS which
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* will take over control completely. Usually these programs
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* will install their own set of exception handlers, device
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* drivers, set up the MMU, etc. - this means, that you cannot
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* expect to re-enter U-Boot except by resetting the CPU.
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* "RAMDisk Images" are more or less just data blocks, and their
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* parameters (address, size) are passed to an OS kernel that is
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* being started.
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* "Multi-File Images" contain several images, typically an OS
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* (Linux) kernel image and one or more data images like
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* RAMDisks. This construct is useful for instance when you want
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* to boot over the network using BOOTP etc., where the boot
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* server provides just a single image file, but you want to get
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* for instance an OS kernel and a RAMDisk image.
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*
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* "Multi-File Images" start with a list of image sizes, each
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* image size (in bytes) specified by an "uint32_t" in network
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* byte order. This list is terminated by an "(uint32_t)0".
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* Immediately after the terminating 0 follow the images, one by
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* one, all aligned on "uint32_t" boundaries (size rounded up to
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* a multiple of 4 bytes - except for the last file).
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*
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* "Firmware Images" are binary images containing firmware (like
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* U-Boot or FPGA images) which usually will be programmed to
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* flash memory.
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*
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* "Script files" are command sequences that will be executed by
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* U-Boot's command interpreter; this feature is especially
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* useful when you configure U-Boot to use a real shell (hush)
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* as command interpreter (=> Shell Scripts).
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*/
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#define IH_TYPE_INVALID 0 /* Invalid Image */
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#define IH_TYPE_STANDALONE 1 /* Standalone Program */
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#define IH_TYPE_KERNEL 2 /* OS Kernel Image */
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#define IH_TYPE_RAMDISK 3 /* RAMDisk Image */
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#define IH_TYPE_MULTI 4 /* Multi-File Image */
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#define IH_TYPE_FIRMWARE 5 /* Firmware Image */
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#define IH_TYPE_SCRIPT 6 /* Script file */
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#define IH_TYPE_FILESYSTEM 7 /* Filesystem Image (any type) */
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#define IH_TYPE_FLATDT 8 /* Binary Flat Device Tree Blob */
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/*
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* Compression Types
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*/
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#define IH_COMP_NONE 0 /* No Compression Used */
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#define IH_COMP_GZIP 1 /* gzip Compression Used */
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#define IH_COMP_BZIP2 2 /* bzip2 Compression Used */
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#define IH_MAGIC 0x27051956 /* Image Magic Number */
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#define IH_NMLEN 32 /* Image Name Length */
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/*
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* all data in network byte order (aka natural aka bigendian)
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*/
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typedef struct uboot_image_header {
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uint32_t ih_magic; /* Image Header Magic Number */
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uint32_t ih_hcrc; /* Image Header CRC Checksum */
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uint32_t ih_time; /* Image Creation Timestamp */
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uint32_t ih_size; /* Image Data Size */
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uint32_t ih_load; /* Data Load Address */
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uint32_t ih_ep; /* Entry Point Address */
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uint32_t ih_dcrc; /* Image Data CRC Checksum */
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uint8_t ih_os; /* Operating System */
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uint8_t ih_arch; /* CPU architecture */
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uint8_t ih_type; /* Image Type */
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uint8_t ih_comp; /* Compression Type */
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uint8_t ih_name[IH_NMLEN]; /* Image Name */
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} uboot_image_header_t;
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#endif /* __IMAGE_H__ */
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1
vl.h
1
vl.h
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@ -1155,6 +1155,7 @@ int get_image_size(const char *filename);
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int load_image(const char *filename, uint8_t *addr);
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int load_elf(const char *filename, int64_t virt_to_phys_addend, uint64_t *pentry);
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int load_aout(const char *filename, uint8_t *addr);
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int load_uboot(const char *filename, target_ulong *ep, int *is_linux);
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/* slavio_timer.c */
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void slavio_timer_init(uint32_t addr, int irq, int mode, unsigned int cpu);
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