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authorJiang, Yunhong <yunhong.jiang@intel.com>2017-05-23 17:55:06 +0000
committerGerrit Code Review <gerrit@opnfv.org>2017-05-23 17:55:06 +0000
commit0f6296e038b5c299654d596026e7bee5aa723e56 (patch)
treea51b545d58c8128abfd6caa9ca43d32343011f62 /qemu/hw/core/loader.c
parentc4d68bc45aa6aa8b7fe39bce206cb17c2cb2d365 (diff)
parentbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (diff)
Merge "Adding qemu as a submodule of KVMFORNFV"
Diffstat (limited to 'qemu/hw/core/loader.c')
-rw-r--r--qemu/hw/core/loader.c1190
1 files changed, 0 insertions, 1190 deletions
diff --git a/qemu/hw/core/loader.c b/qemu/hw/core/loader.c
deleted file mode 100644
index c0499571c..000000000
--- a/qemu/hw/core/loader.c
+++ /dev/null
@@ -1,1190 +0,0 @@
-/*
- * QEMU Executable loader
- *
- * Copyright (c) 2006 Fabrice Bellard
- *
- * 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- * Gunzip functionality in this file is derived from u-boot:
- *
- * (C) Copyright 2008 Semihalf
- *
- * (C) Copyright 2000-2005
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * This program 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 2 of
- * the License, or (at your option) any later version.
- *
- * This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "hw/hw.h"
-#include "disas/disas.h"
-#include "monitor/monitor.h"
-#include "sysemu/sysemu.h"
-#include "uboot_image.h"
-#include "hw/loader.h"
-#include "hw/nvram/fw_cfg.h"
-#include "exec/memory.h"
-#include "exec/address-spaces.h"
-#include "hw/boards.h"
-#include "qemu/cutils.h"
-
-#include <zlib.h>
-
-static int roms_loaded;
-
-/* return the size or -1 if error */
-int get_image_size(const char *filename)
-{
- int fd, size;
- fd = open(filename, O_RDONLY | O_BINARY);
- if (fd < 0)
- return -1;
- size = lseek(fd, 0, SEEK_END);
- close(fd);
- return size;
-}
-
-/* return the size or -1 if error */
-/* deprecated, because caller does not specify buffer size! */
-int load_image(const char *filename, uint8_t *addr)
-{
- int fd, size;
- fd = open(filename, O_RDONLY | O_BINARY);
- if (fd < 0)
- return -1;
- size = lseek(fd, 0, SEEK_END);
- if (size == -1) {
- fprintf(stderr, "file %-20s: get size error: %s\n",
- filename, strerror(errno));
- close(fd);
- return -1;
- }
-
- lseek(fd, 0, SEEK_SET);
- if (read(fd, addr, size) != size) {
- close(fd);
- return -1;
- }
- close(fd);
- return size;
-}
-
-/* return the size or -1 if error */
-ssize_t load_image_size(const char *filename, void *addr, size_t size)
-{
- int fd;
- ssize_t actsize;
-
- fd = open(filename, O_RDONLY | O_BINARY);
- if (fd < 0) {
- return -1;
- }
-
- actsize = read(fd, addr, size);
- if (actsize < 0) {
- close(fd);
- return -1;
- }
- close(fd);
-
- return actsize;
-}
-
-/* read()-like version */
-ssize_t read_targphys(const char *name,
- int fd, hwaddr dst_addr, size_t nbytes)
-{
- uint8_t *buf;
- ssize_t did;
-
- buf = g_malloc(nbytes);
- did = read(fd, buf, nbytes);
- if (did > 0)
- rom_add_blob_fixed("read", buf, did, dst_addr);
- g_free(buf);
- return did;
-}
-
-/* return the size or -1 if error */
-int load_image_targphys(const char *filename,
- hwaddr addr, uint64_t max_sz)
-{
- int size;
-
- size = get_image_size(filename);
- if (size > max_sz) {
- return -1;
- }
- if (size > 0) {
- rom_add_file_fixed(filename, addr, -1);
- }
- return size;
-}
-
-int load_image_mr(const char *filename, MemoryRegion *mr)
-{
- int size;
-
- if (!memory_access_is_direct(mr, false)) {
- /* Can only load an image into RAM or ROM */
- return -1;
- }
-
- size = get_image_size(filename);
-
- if (size > memory_region_size(mr)) {
- return -1;
- }
- if (size > 0) {
- if (rom_add_file_mr(filename, mr, -1) < 0) {
- return -1;
- }
- }
- return size;
-}
-
-void pstrcpy_targphys(const char *name, hwaddr dest, int buf_size,
- const char *source)
-{
- const char *nulp;
- char *ptr;
-
- if (buf_size <= 0) return;
- nulp = memchr(source, 0, buf_size);
- if (nulp) {
- rom_add_blob_fixed(name, source, (nulp - source) + 1, dest);
- } else {
- rom_add_blob_fixed(name, source, buf_size, dest);
- ptr = rom_ptr(dest + buf_size - 1);
- *ptr = 0;
- }
-}
-
-/* A.OUT loader */
-
-struct exec
-{
- uint32_t a_info; /* Use macros N_MAGIC, etc for access */
- uint32_t a_text; /* length of text, in bytes */
- uint32_t a_data; /* length of data, in bytes */
- uint32_t a_bss; /* length of uninitialized data area, in bytes */
- uint32_t a_syms; /* length of symbol table data in file, in bytes */
- uint32_t a_entry; /* start address */
- uint32_t a_trsize; /* length of relocation info for text, in bytes */
- uint32_t a_drsize; /* length of relocation info for data, in bytes */
-};
-
-static void bswap_ahdr(struct exec *e)
-{
- bswap32s(&e->a_info);
- bswap32s(&e->a_text);
- bswap32s(&e->a_data);
- bswap32s(&e->a_bss);
- bswap32s(&e->a_syms);
- bswap32s(&e->a_entry);
- bswap32s(&e->a_trsize);
- bswap32s(&e->a_drsize);
-}
-
-#define N_MAGIC(exec) ((exec).a_info & 0xffff)
-#define OMAGIC 0407
-#define NMAGIC 0410
-#define ZMAGIC 0413
-#define QMAGIC 0314
-#define _N_HDROFF(x) (1024 - sizeof (struct exec))
-#define N_TXTOFF(x) \
- (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \
- (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec)))
-#define N_TXTADDR(x, target_page_size) (N_MAGIC(x) == QMAGIC ? target_page_size : 0)
-#define _N_SEGMENT_ROUND(x, target_page_size) (((x) + target_page_size - 1) & ~(target_page_size - 1))
-
-#define _N_TXTENDADDR(x, target_page_size) (N_TXTADDR(x, target_page_size)+(x).a_text)
-
-#define N_DATADDR(x, target_page_size) \
- (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x, target_page_size)) \
- : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x, target_page_size), target_page_size)))
-
-
-int load_aout(const char *filename, hwaddr addr, int max_sz,
- int bswap_needed, hwaddr target_page_size)
-{
- int fd;
- ssize_t size, ret;
- struct exec e;
- uint32_t magic;
-
- fd = open(filename, O_RDONLY | O_BINARY);
- if (fd < 0)
- return -1;
-
- size = read(fd, &e, sizeof(e));
- if (size < 0)
- goto fail;
-
- if (bswap_needed) {
- bswap_ahdr(&e);
- }
-
- magic = N_MAGIC(e);
- switch (magic) {
- case ZMAGIC:
- case QMAGIC:
- case OMAGIC:
- if (e.a_text + e.a_data > max_sz)
- goto fail;
- lseek(fd, N_TXTOFF(e), SEEK_SET);
- size = read_targphys(filename, fd, addr, e.a_text + e.a_data);
- if (size < 0)
- goto fail;
- break;
- case NMAGIC:
- if (N_DATADDR(e, target_page_size) + e.a_data > max_sz)
- goto fail;
- lseek(fd, N_TXTOFF(e), SEEK_SET);
- size = read_targphys(filename, fd, addr, e.a_text);
- if (size < 0)
- goto fail;
- ret = read_targphys(filename, fd, addr + N_DATADDR(e, target_page_size),
- e.a_data);
- if (ret < 0)
- goto fail;
- size += ret;
- break;
- default:
- goto fail;
- }
- close(fd);
- return size;
- fail:
- close(fd);
- return -1;
-}
-
-/* ELF loader */
-
-static void *load_at(int fd, off_t offset, size_t size)
-{
- void *ptr;
- if (lseek(fd, offset, SEEK_SET) < 0)
- return NULL;
- ptr = g_malloc(size);
- if (read(fd, ptr, size) != size) {
- g_free(ptr);
- return NULL;
- }
- return ptr;
-}
-
-#ifdef ELF_CLASS
-#undef ELF_CLASS
-#endif
-
-#define ELF_CLASS ELFCLASS32
-#include "elf.h"
-
-#define SZ 32
-#define elf_word uint32_t
-#define elf_sword int32_t
-#define bswapSZs bswap32s
-#include "hw/elf_ops.h"
-
-#undef elfhdr
-#undef elf_phdr
-#undef elf_shdr
-#undef elf_sym
-#undef elf_rela
-#undef elf_note
-#undef elf_word
-#undef elf_sword
-#undef bswapSZs
-#undef SZ
-#define elfhdr elf64_hdr
-#define elf_phdr elf64_phdr
-#define elf_note elf64_note
-#define elf_shdr elf64_shdr
-#define elf_sym elf64_sym
-#define elf_rela elf64_rela
-#define elf_word uint64_t
-#define elf_sword int64_t
-#define bswapSZs bswap64s
-#define SZ 64
-#include "hw/elf_ops.h"
-
-const char *load_elf_strerror(int error)
-{
- switch (error) {
- case 0:
- return "No error";
- case ELF_LOAD_FAILED:
- return "Failed to load ELF";
- case ELF_LOAD_NOT_ELF:
- return "The image is not ELF";
- case ELF_LOAD_WRONG_ARCH:
- return "The image is from incompatible architecture";
- case ELF_LOAD_WRONG_ENDIAN:
- return "The image has incorrect endianness";
- default:
- return "Unknown error";
- }
-}
-
-void load_elf_hdr(const char *filename, void *hdr, bool *is64, Error **errp)
-{
- int fd;
- uint8_t e_ident_local[EI_NIDENT];
- uint8_t *e_ident;
- size_t hdr_size, off;
- bool is64l;
-
- if (!hdr) {
- hdr = e_ident_local;
- }
- e_ident = hdr;
-
- fd = open(filename, O_RDONLY | O_BINARY);
- if (fd < 0) {
- error_setg_errno(errp, errno, "Failed to open file: %s", filename);
- return;
- }
- if (read(fd, hdr, EI_NIDENT) != EI_NIDENT) {
- error_setg_errno(errp, errno, "Failed to read file: %s", filename);
- goto fail;
- }
- if (e_ident[0] != ELFMAG0 ||
- e_ident[1] != ELFMAG1 ||
- e_ident[2] != ELFMAG2 ||
- e_ident[3] != ELFMAG3) {
- error_setg(errp, "Bad ELF magic");
- goto fail;
- }
-
- is64l = e_ident[EI_CLASS] == ELFCLASS64;
- hdr_size = is64l ? sizeof(Elf64_Ehdr) : sizeof(Elf32_Ehdr);
- if (is64) {
- *is64 = is64l;
- }
-
- off = EI_NIDENT;
- while (hdr != e_ident_local && off < hdr_size) {
- size_t br = read(fd, hdr + off, hdr_size - off);
- switch (br) {
- case 0:
- error_setg(errp, "File too short: %s", filename);
- goto fail;
- case -1:
- error_setg_errno(errp, errno, "Failed to read file: %s",
- filename);
- goto fail;
- }
- off += br;
- }
-
-fail:
- close(fd);
-}
-
-/* return < 0 if error, otherwise the number of bytes loaded in memory */
-int load_elf(const char *filename, uint64_t (*translate_fn)(void *, uint64_t),
- void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
- uint64_t *highaddr, int big_endian, int elf_machine,
- int clear_lsb, int data_swab)
-{
- int fd, data_order, target_data_order, must_swab, ret = ELF_LOAD_FAILED;
- uint8_t e_ident[EI_NIDENT];
-
- fd = open(filename, O_RDONLY | O_BINARY);
- if (fd < 0) {
- perror(filename);
- return -1;
- }
- if (read(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident))
- goto fail;
- if (e_ident[0] != ELFMAG0 ||
- e_ident[1] != ELFMAG1 ||
- e_ident[2] != ELFMAG2 ||
- e_ident[3] != ELFMAG3) {
- ret = ELF_LOAD_NOT_ELF;
- goto fail;
- }
-#ifdef HOST_WORDS_BIGENDIAN
- data_order = ELFDATA2MSB;
-#else
- data_order = ELFDATA2LSB;
-#endif
- must_swab = data_order != e_ident[EI_DATA];
- if (big_endian) {
- target_data_order = ELFDATA2MSB;
- } else {
- target_data_order = ELFDATA2LSB;
- }
-
- if (target_data_order != e_ident[EI_DATA]) {
- ret = ELF_LOAD_WRONG_ENDIAN;
- goto fail;
- }
-
- lseek(fd, 0, SEEK_SET);
- if (e_ident[EI_CLASS] == ELFCLASS64) {
- ret = load_elf64(filename, fd, translate_fn, translate_opaque, must_swab,
- pentry, lowaddr, highaddr, elf_machine, clear_lsb,
- data_swab);
- } else {
- ret = load_elf32(filename, fd, translate_fn, translate_opaque, must_swab,
- pentry, lowaddr, highaddr, elf_machine, clear_lsb,
- data_swab);
- }
-
- fail:
- close(fd);
- return ret;
-}
-
-static void bswap_uboot_header(uboot_image_header_t *hdr)
-{
-#ifndef HOST_WORDS_BIGENDIAN
- bswap32s(&hdr->ih_magic);
- bswap32s(&hdr->ih_hcrc);
- bswap32s(&hdr->ih_time);
- bswap32s(&hdr->ih_size);
- bswap32s(&hdr->ih_load);
- bswap32s(&hdr->ih_ep);
- bswap32s(&hdr->ih_dcrc);
-#endif
-}
-
-
-#define ZALLOC_ALIGNMENT 16
-
-static void *zalloc(void *x, unsigned items, unsigned size)
-{
- void *p;
-
- size *= items;
- size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
-
- p = g_malloc(size);
-
- return (p);
-}
-
-static void zfree(void *x, void *addr)
-{
- g_free(addr);
-}
-
-
-#define HEAD_CRC 2
-#define EXTRA_FIELD 4
-#define ORIG_NAME 8
-#define COMMENT 0x10
-#define RESERVED 0xe0
-
-#define DEFLATED 8
-
-/* This is the usual maximum in uboot, so if a uImage overflows this, it would
- * overflow on real hardware too. */
-#define UBOOT_MAX_GUNZIP_BYTES (64 << 20)
-
-static ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src,
- size_t srclen)
-{
- z_stream s;
- ssize_t dstbytes;
- int r, i, flags;
-
- /* skip header */
- i = 10;
- flags = src[3];
- if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
- puts ("Error: Bad gzipped data\n");
- return -1;
- }
- if ((flags & EXTRA_FIELD) != 0)
- i = 12 + src[10] + (src[11] << 8);
- if ((flags & ORIG_NAME) != 0)
- while (src[i++] != 0)
- ;
- if ((flags & COMMENT) != 0)
- while (src[i++] != 0)
- ;
- if ((flags & HEAD_CRC) != 0)
- i += 2;
- if (i >= srclen) {
- puts ("Error: gunzip out of data in header\n");
- return -1;
- }
-
- s.zalloc = zalloc;
- s.zfree = zfree;
-
- r = inflateInit2(&s, -MAX_WBITS);
- if (r != Z_OK) {
- printf ("Error: inflateInit2() returned %d\n", r);
- return (-1);
- }
- s.next_in = src + i;
- s.avail_in = srclen - i;
- s.next_out = dst;
- s.avail_out = dstlen;
- r = inflate(&s, Z_FINISH);
- if (r != Z_OK && r != Z_STREAM_END) {
- printf ("Error: inflate() returned %d\n", r);
- return -1;
- }
- dstbytes = s.next_out - (unsigned char *) dst;
- inflateEnd(&s);
-
- return dstbytes;
-}
-
-/* Load a U-Boot image. */
-static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr,
- int *is_linux, uint8_t image_type,
- uint64_t (*translate_fn)(void *, uint64_t),
- void *translate_opaque)
-{
- int fd;
- int size;
- hwaddr address;
- uboot_image_header_t h;
- uboot_image_header_t *hdr = &h;
- uint8_t *data = NULL;
- int ret = -1;
- int do_uncompress = 0;
-
- fd = open(filename, O_RDONLY | O_BINARY);
- if (fd < 0)
- return -1;
-
- size = read(fd, hdr, sizeof(uboot_image_header_t));
- if (size < 0)
- goto out;
-
- bswap_uboot_header(hdr);
-
- if (hdr->ih_magic != IH_MAGIC)
- goto out;
-
- if (hdr->ih_type != image_type) {
- fprintf(stderr, "Wrong image type %d, expected %d\n", hdr->ih_type,
- image_type);
- goto out;
- }
-
- /* TODO: Implement other image types. */
- switch (hdr->ih_type) {
- case IH_TYPE_KERNEL:
- address = hdr->ih_load;
- if (translate_fn) {
- address = translate_fn(translate_opaque, address);
- }
- if (loadaddr) {
- *loadaddr = hdr->ih_load;
- }
-
- switch (hdr->ih_comp) {
- case IH_COMP_NONE:
- break;
- case IH_COMP_GZIP:
- do_uncompress = 1;
- break;
- default:
- fprintf(stderr,
- "Unable to load u-boot images with compression type %d\n",
- hdr->ih_comp);
- goto out;
- }
-
- if (ep) {
- *ep = hdr->ih_ep;
- }
-
- /* TODO: Check CPU type. */
- if (is_linux) {
- if (hdr->ih_os == IH_OS_LINUX) {
- *is_linux = 1;
- } else {
- *is_linux = 0;
- }
- }
-
- break;
- case IH_TYPE_RAMDISK:
- address = *loadaddr;
- break;
- default:
- fprintf(stderr, "Unsupported u-boot image type %d\n", hdr->ih_type);
- goto out;
- }
-
- data = g_malloc(hdr->ih_size);
-
- if (read(fd, data, hdr->ih_size) != hdr->ih_size) {
- fprintf(stderr, "Error reading file\n");
- goto out;
- }
-
- if (do_uncompress) {
- uint8_t *compressed_data;
- size_t max_bytes;
- ssize_t bytes;
-
- compressed_data = data;
- max_bytes = UBOOT_MAX_GUNZIP_BYTES;
- data = g_malloc(max_bytes);
-
- bytes = gunzip(data, max_bytes, compressed_data, hdr->ih_size);
- g_free(compressed_data);
- if (bytes < 0) {
- fprintf(stderr, "Unable to decompress gzipped image!\n");
- goto out;
- }
- hdr->ih_size = bytes;
- }
-
- rom_add_blob_fixed(filename, data, hdr->ih_size, address);
-
- ret = hdr->ih_size;
-
-out:
- g_free(data);
- close(fd);
- return ret;
-}
-
-int load_uimage(const char *filename, hwaddr *ep, hwaddr *loadaddr,
- int *is_linux,
- uint64_t (*translate_fn)(void *, uint64_t),
- void *translate_opaque)
-{
- return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL,
- translate_fn, translate_opaque);
-}
-
-/* Load a ramdisk. */
-int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz)
-{
- return load_uboot_image(filename, NULL, &addr, NULL, IH_TYPE_RAMDISK,
- NULL, NULL);
-}
-
-/* Load a gzip-compressed kernel to a dynamically allocated buffer. */
-int load_image_gzipped_buffer(const char *filename, uint64_t max_sz,
- uint8_t **buffer)
-{
- uint8_t *compressed_data = NULL;
- uint8_t *data = NULL;
- gsize len;
- ssize_t bytes;
- int ret = -1;
-
- if (!g_file_get_contents(filename, (char **) &compressed_data, &len,
- NULL)) {
- goto out;
- }
-
- /* Is it a gzip-compressed file? */
- if (len < 2 ||
- compressed_data[0] != 0x1f ||
- compressed_data[1] != 0x8b) {
- goto out;
- }
-
- if (max_sz > LOAD_IMAGE_MAX_GUNZIP_BYTES) {
- max_sz = LOAD_IMAGE_MAX_GUNZIP_BYTES;
- }
-
- data = g_malloc(max_sz);
- bytes = gunzip(data, max_sz, compressed_data, len);
- if (bytes < 0) {
- fprintf(stderr, "%s: unable to decompress gzipped kernel file\n",
- filename);
- goto out;
- }
-
- /* trim to actual size and return to caller */
- *buffer = g_realloc(data, bytes);
- ret = bytes;
- /* ownership has been transferred to caller */
- data = NULL;
-
- out:
- g_free(compressed_data);
- g_free(data);
- return ret;
-}
-
-/* Load a gzip-compressed kernel. */
-int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz)
-{
- int bytes;
- uint8_t *data;
-
- bytes = load_image_gzipped_buffer(filename, max_sz, &data);
- if (bytes != -1) {
- rom_add_blob_fixed(filename, data, bytes, addr);
- g_free(data);
- }
- return bytes;
-}
-
-/*
- * Functions for reboot-persistent memory regions.
- * - used for vga bios and option roms.
- * - also linux kernel (-kernel / -initrd).
- */
-
-typedef struct Rom Rom;
-
-struct Rom {
- char *name;
- char *path;
-
- /* datasize is the amount of memory allocated in "data". If datasize is less
- * than romsize, it means that the area from datasize to romsize is filled
- * with zeros.
- */
- size_t romsize;
- size_t datasize;
-
- uint8_t *data;
- MemoryRegion *mr;
- int isrom;
- char *fw_dir;
- char *fw_file;
-
- hwaddr addr;
- QTAILQ_ENTRY(Rom) next;
-};
-
-static FWCfgState *fw_cfg;
-static QTAILQ_HEAD(, Rom) roms = QTAILQ_HEAD_INITIALIZER(roms);
-
-static void rom_insert(Rom *rom)
-{
- Rom *item;
-
- if (roms_loaded) {
- hw_error ("ROM images must be loaded at startup\n");
- }
-
- /* list is ordered by load address */
- QTAILQ_FOREACH(item, &roms, next) {
- if (rom->addr >= item->addr)
- continue;
- QTAILQ_INSERT_BEFORE(item, rom, next);
- return;
- }
- QTAILQ_INSERT_TAIL(&roms, rom, next);
-}
-
-static void fw_cfg_resized(const char *id, uint64_t length, void *host)
-{
- if (fw_cfg) {
- fw_cfg_modify_file(fw_cfg, id + strlen("/rom@"), host, length);
- }
-}
-
-static void *rom_set_mr(Rom *rom, Object *owner, const char *name)
-{
- void *data;
-
- rom->mr = g_malloc(sizeof(*rom->mr));
- memory_region_init_resizeable_ram(rom->mr, owner, name,
- rom->datasize, rom->romsize,
- fw_cfg_resized,
- &error_fatal);
- memory_region_set_readonly(rom->mr, true);
- vmstate_register_ram_global(rom->mr);
-
- data = memory_region_get_ram_ptr(rom->mr);
- memcpy(data, rom->data, rom->datasize);
-
- return data;
-}
-
-int rom_add_file(const char *file, const char *fw_dir,
- hwaddr addr, int32_t bootindex,
- bool option_rom, MemoryRegion *mr)
-{
- MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
- Rom *rom;
- int rc, fd = -1;
- char devpath[100];
-
- rom = g_malloc0(sizeof(*rom));
- rom->name = g_strdup(file);
- rom->path = qemu_find_file(QEMU_FILE_TYPE_BIOS, rom->name);
- if (rom->path == NULL) {
- rom->path = g_strdup(file);
- }
-
- fd = open(rom->path, O_RDONLY | O_BINARY);
- if (fd == -1) {
- fprintf(stderr, "Could not open option rom '%s': %s\n",
- rom->path, strerror(errno));
- goto err;
- }
-
- if (fw_dir) {
- rom->fw_dir = g_strdup(fw_dir);
- rom->fw_file = g_strdup(file);
- }
- rom->addr = addr;
- rom->romsize = lseek(fd, 0, SEEK_END);
- if (rom->romsize == -1) {
- fprintf(stderr, "rom: file %-20s: get size error: %s\n",
- rom->name, strerror(errno));
- goto err;
- }
-
- rom->datasize = rom->romsize;
- rom->data = g_malloc0(rom->datasize);
- lseek(fd, 0, SEEK_SET);
- rc = read(fd, rom->data, rom->datasize);
- if (rc != rom->datasize) {
- fprintf(stderr, "rom: file %-20s: read error: rc=%d (expected %zd)\n",
- rom->name, rc, rom->datasize);
- goto err;
- }
- close(fd);
- rom_insert(rom);
- if (rom->fw_file && fw_cfg) {
- const char *basename;
- char fw_file_name[FW_CFG_MAX_FILE_PATH];
- void *data;
-
- basename = strrchr(rom->fw_file, '/');
- if (basename) {
- basename++;
- } else {
- basename = rom->fw_file;
- }
- snprintf(fw_file_name, sizeof(fw_file_name), "%s/%s", rom->fw_dir,
- basename);
- snprintf(devpath, sizeof(devpath), "/rom@%s", fw_file_name);
-
- if ((!option_rom || mc->option_rom_has_mr) && mc->rom_file_has_mr) {
- data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
- } else {
- data = rom->data;
- }
-
- fw_cfg_add_file(fw_cfg, fw_file_name, data, rom->romsize);
- } else {
- if (mr) {
- rom->mr = mr;
- snprintf(devpath, sizeof(devpath), "/rom@%s", file);
- } else {
- snprintf(devpath, sizeof(devpath), "/rom@" TARGET_FMT_plx, addr);
- }
- }
-
- add_boot_device_path(bootindex, NULL, devpath);
- return 0;
-
-err:
- if (fd != -1)
- close(fd);
- g_free(rom->data);
- g_free(rom->path);
- g_free(rom->name);
- g_free(rom);
- return -1;
-}
-
-MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
- size_t max_len, hwaddr addr, const char *fw_file_name,
- FWCfgReadCallback fw_callback, void *callback_opaque)
-{
- MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
- Rom *rom;
- MemoryRegion *mr = NULL;
-
- rom = g_malloc0(sizeof(*rom));
- rom->name = g_strdup(name);
- rom->addr = addr;
- rom->romsize = max_len ? max_len : len;
- rom->datasize = len;
- rom->data = g_malloc0(rom->datasize);
- memcpy(rom->data, blob, len);
- rom_insert(rom);
- if (fw_file_name && fw_cfg) {
- char devpath[100];
- void *data;
-
- snprintf(devpath, sizeof(devpath), "/rom@%s", fw_file_name);
-
- if (mc->rom_file_has_mr) {
- data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
- mr = rom->mr;
- } else {
- data = rom->data;
- }
-
- fw_cfg_add_file_callback(fw_cfg, fw_file_name,
- fw_callback, callback_opaque,
- data, rom->datasize);
- }
- return mr;
-}
-
-/* This function is specific for elf program because we don't need to allocate
- * all the rom. We just allocate the first part and the rest is just zeros. This
- * is why romsize and datasize are different. Also, this function seize the
- * memory ownership of "data", so we don't have to allocate and copy the buffer.
- */
-int rom_add_elf_program(const char *name, void *data, size_t datasize,
- size_t romsize, hwaddr addr)
-{
- Rom *rom;
-
- rom = g_malloc0(sizeof(*rom));
- rom->name = g_strdup(name);
- rom->addr = addr;
- rom->datasize = datasize;
- rom->romsize = romsize;
- rom->data = data;
- rom_insert(rom);
- return 0;
-}
-
-int rom_add_vga(const char *file)
-{
- return rom_add_file(file, "vgaroms", 0, -1, true, NULL);
-}
-
-int rom_add_option(const char *file, int32_t bootindex)
-{
- return rom_add_file(file, "genroms", 0, bootindex, true, NULL);
-}
-
-static void rom_reset(void *unused)
-{
- Rom *rom;
-
- QTAILQ_FOREACH(rom, &roms, next) {
- if (rom->fw_file) {
- continue;
- }
- if (rom->data == NULL) {
- continue;
- }
- if (rom->mr) {
- void *host = memory_region_get_ram_ptr(rom->mr);
- memcpy(host, rom->data, rom->datasize);
- } else {
- cpu_physical_memory_write_rom(&address_space_memory,
- rom->addr, rom->data, rom->datasize);
- }
- if (rom->isrom) {
- /* rom needs to be written only once */
- g_free(rom->data);
- rom->data = NULL;
- }
- /*
- * The rom loader is really on the same level as firmware in the guest
- * shadowing a ROM into RAM. Such a shadowing mechanism needs to ensure
- * that the instruction cache for that new region is clear, so that the
- * CPU definitely fetches its instructions from the just written data.
- */
- cpu_flush_icache_range(rom->addr, rom->datasize);
- }
-}
-
-int rom_check_and_register_reset(void)
-{
- hwaddr addr = 0;
- MemoryRegionSection section;
- Rom *rom;
-
- QTAILQ_FOREACH(rom, &roms, next) {
- if (rom->fw_file) {
- continue;
- }
- if (addr > rom->addr) {
- fprintf(stderr, "rom: requested regions overlap "
- "(rom %s. free=0x" TARGET_FMT_plx
- ", addr=0x" TARGET_FMT_plx ")\n",
- rom->name, addr, rom->addr);
- return -1;
- }
- addr = rom->addr;
- addr += rom->romsize;
- section = memory_region_find(get_system_memory(), rom->addr, 1);
- rom->isrom = int128_nz(section.size) && memory_region_is_rom(section.mr);
- memory_region_unref(section.mr);
- }
- qemu_register_reset(rom_reset, NULL);
- roms_loaded = 1;
- return 0;
-}
-
-void rom_set_fw(FWCfgState *f)
-{
- fw_cfg = f;
-}
-
-void rom_set_order_override(int order)
-{
- if (!fw_cfg)
- return;
- fw_cfg_set_order_override(fw_cfg, order);
-}
-
-void rom_reset_order_override(void)
-{
- if (!fw_cfg)
- return;
- fw_cfg_reset_order_override(fw_cfg);
-}
-
-static Rom *find_rom(hwaddr addr)
-{
- Rom *rom;
-
- QTAILQ_FOREACH(rom, &roms, next) {
- if (rom->fw_file) {
- continue;
- }
- if (rom->mr) {
- continue;
- }
- if (rom->addr > addr) {
- continue;
- }
- if (rom->addr + rom->romsize < addr) {
- continue;
- }
- return rom;
- }
- return NULL;
-}
-
-/*
- * Copies memory from registered ROMs to dest. Any memory that is contained in
- * a ROM between addr and addr + size is copied. Note that this can involve
- * multiple ROMs, which need not start at addr and need not end at addr + size.
- */
-int rom_copy(uint8_t *dest, hwaddr addr, size_t size)
-{
- hwaddr end = addr + size;
- uint8_t *s, *d = dest;
- size_t l = 0;
- Rom *rom;
-
- QTAILQ_FOREACH(rom, &roms, next) {
- if (rom->fw_file) {
- continue;
- }
- if (rom->mr) {
- continue;
- }
- if (rom->addr + rom->romsize < addr) {
- continue;
- }
- if (rom->addr > end) {
- break;
- }
-
- d = dest + (rom->addr - addr);
- s = rom->data;
- l = rom->datasize;
-
- if ((d + l) > (dest + size)) {
- l = dest - d;
- }
-
- if (l > 0) {
- memcpy(d, s, l);
- }
-
- if (rom->romsize > rom->datasize) {
- /* If datasize is less than romsize, it means that we didn't
- * allocate all the ROM because the trailing data are only zeros.
- */
-
- d += l;
- l = rom->romsize - rom->datasize;
-
- if ((d + l) > (dest + size)) {
- /* Rom size doesn't fit in the destination area. Adjust to avoid
- * overflow.
- */
- l = dest - d;
- }
-
- if (l > 0) {
- memset(d, 0x0, l);
- }
- }
- }
-
- return (d + l) - dest;
-}
-
-void *rom_ptr(hwaddr addr)
-{
- Rom *rom;
-
- rom = find_rom(addr);
- if (!rom || !rom->data)
- return NULL;
- return rom->data + (addr - rom->addr);
-}
-
-void hmp_info_roms(Monitor *mon, const QDict *qdict)
-{
- Rom *rom;
-
- QTAILQ_FOREACH(rom, &roms, next) {
- if (rom->mr) {
- monitor_printf(mon, "%s"
- " size=0x%06zx name=\"%s\"\n",
- memory_region_name(rom->mr),
- rom->romsize,
- rom->name);
- } else if (!rom->fw_file) {
- monitor_printf(mon, "addr=" TARGET_FMT_plx
- " size=0x%06zx mem=%s name=\"%s\"\n",
- rom->addr, rom->romsize,
- rom->isrom ? "rom" : "ram",
- rom->name);
- } else {
- monitor_printf(mon, "fw=%s/%s"
- " size=0x%06zx name=\"%s\"\n",
- rom->fw_dir,
- rom->fw_file,
- rom->romsize,
- rom->name);
- }
- }
-}