diff options
Diffstat (limited to 'qemu/roms/openbios/arch/sparc64/multiboot.c')
| -rw-r--r-- | qemu/roms/openbios/arch/sparc64/multiboot.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/qemu/roms/openbios/arch/sparc64/multiboot.c b/qemu/roms/openbios/arch/sparc64/multiboot.c deleted file mode 100644 index 8514ca0a4..000000000 --- a/qemu/roms/openbios/arch/sparc64/multiboot.c +++ /dev/null @@ -1,125 +0,0 @@ -/* Support for Multiboot */ - -#include "config.h" -#include "asm/io.h" -#include "libopenbios/sys_info.h" -#include "multiboot.h" - -#define printf printk -#ifdef CONFIG_DEBUG_BOOT -#define debug printk -#else -#define debug(x...) -#endif - -struct mbheader { - unsigned int magic, flags, checksum; -}; -const struct mbheader multiboot_header - __attribute__((section (".hdr"))) = -{ - MULTIBOOT_HEADER_MAGIC, - MULTIBOOT_HEADER_FLAGS, - -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS) -}; - -/* Multiboot information structure, provided by loader to us */ - -struct multiboot_mmap { - unsigned entry_size; - unsigned base_lo, base_hi; - unsigned size_lo, size_hi; - unsigned type; -}; - -#define MULTIBOOT_MEM_VALID 0x01 -#define MULTIBOOT_BOOT_DEV_VALID 0x02 -#define MULTIBOOT_CMDLINE_VALID 0x04 -#define MULTIBOOT_MODS_VALID 0x08 -#define MULTIBOOT_AOUT_SYMS_VALID 0x10 -#define MULTIBOOT_ELF_SYMS_VALID 0x20 -#define MULTIBOOT_MMAP_VALID 0x40 - -void collect_multiboot_info(struct sys_info *info); -void collect_multiboot_info(struct sys_info *info) -{ - struct multiboot_info *mbinfo; - struct multiboot_mmap *mbmem; - unsigned mbcount, mbaddr; - unsigned int i; - struct memrange *mmap; - int mmap_count; - module_t *mod; - - if (info->boot_type != 0x2BADB002) - return; - - debug("Using Multiboot information at %#lx\n", info->boot_data); - - mbinfo = phys_to_virt(info->boot_data); - - if (mbinfo->mods_count != 1) { - printf("Multiboot: no dictionary\n"); - return; - } - - mod = (module_t *) mbinfo->mods_addr; - info->dict_start=(unsigned long *)mod->mod_start; - info->dict_end=(unsigned long *)mod->mod_end; - - if (mbinfo->flags & MULTIBOOT_MMAP_VALID) { - /* convert mmap records */ - mbmem = phys_to_virt(mbinfo->mmap_addr); - mbcount = mbinfo->mmap_length / (mbmem->entry_size + 4); - mmap = malloc(mbcount * sizeof(struct memrange)); - mmap_count = 0; - mbaddr = mbinfo->mmap_addr; - for (i = 0; i < mbcount; i++) { - mbmem = phys_to_virt(mbaddr); - debug("%08x%08x %08x%08x (%d)\n", - mbmem->base_hi, - mbmem->base_lo, - mbmem->size_hi, - mbmem->size_lo, - mbmem->type); - if (mbmem->type == 1) { /* Only normal RAM */ - mmap[mmap_count].base = mbmem->base_lo - + (((unsigned long long) mbmem->base_hi) << 32); - mmap[mmap_count].size = mbmem->size_lo - + (((unsigned long long) mbmem->size_hi) << 32); - mmap_count++; - } - mbaddr += mbmem->entry_size + 4; - if (mbaddr >= mbinfo->mmap_addr + mbinfo->mmap_length) - break; - } - /* simple sanity check - there should be at least 2 RAM segments - * (base 640k and extended) */ - if (mmap_count >= 2) - goto got_it; - - printf("Multiboot mmap is broken\n"); - free(mmap); - /* fall back to mem_lower/mem_upper */ - } - - if (mbinfo->flags & MULTIBOOT_MEM_VALID) { - /* use mem_lower and mem_upper */ - mmap_count = 2; - mmap = malloc(2 * sizeof(*mmap)); - mmap[0].base = 0; - mmap[0].size = mbinfo->mem_lower << 10; - mmap[1].base = 1 << 20; /* 1MB */ - mmap[1].size = mbinfo->mem_upper << 10; - goto got_it; - } - - printf("Can't get memory information from Multiboot\n"); - return; - -got_it: - info->memrange = mmap; - info->n_memranges = mmap_count; - - return; -} |