diff options
Diffstat (limited to 'qemu/roms/openbios/libopenbios/linuxbios_info.c')
-rw-r--r-- | qemu/roms/openbios/libopenbios/linuxbios_info.c | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/qemu/roms/openbios/libopenbios/linuxbios_info.c b/qemu/roms/openbios/libopenbios/linuxbios_info.c deleted file mode 100644 index bef996cf0..000000000 --- a/qemu/roms/openbios/libopenbios/linuxbios_info.c +++ /dev/null @@ -1,130 +0,0 @@ -/* Adapted from Etherboot 5.1.8 */ - -#include "config.h" -#include "sysinclude.h" -#include "asm/types.h" -#include "asm/io.h" -#include "linuxbios.h" -#include "libopenbios/ipchecksum.h" -#include "libopenbios/sys_info.h" - -#ifdef CONFIG_DEBUG_BOOT -#define debug printk -#else -#define debug(x...) -#endif - -#define for_each_lbrec(head, rec) \ - for(rec = (struct lb_record *)(((char *)head) + sizeof(*head)); \ - (((char *)rec) < (((char *)head) + sizeof(*head) + head->table_bytes)) && \ - (rec->size >= 1) && \ - ((((char *)rec) + rec->size) <= (((char *)head) + sizeof(*head) + head->table_bytes)); \ - rec = (struct lb_record *)(((char *)rec) + rec->size)) - -static void convert_memmap(struct lb_memory *lbmem, struct sys_info *info) -{ - int lbcount; - int i; - - lbcount = lbmem->size / sizeof(struct lb_memory_range); - info->memrange = malloc(lbcount * sizeof(struct memrange)); - info->n_memranges = 0; - for (i = 0; i < lbcount; i++) { - debug("%#016llx %#016llx %d\n", - (long long)lbmem->map[i].start, (long long)lbmem->map[i].size, - (int) lbmem->map[i].type); - if (lbmem->map[i].type != LB_MEM_RAM) - continue; - info->memrange[info->n_memranges].base = lbmem->map[i].start; - info->memrange[info->n_memranges].size = lbmem->map[i].size; - info->n_memranges++; - } -} - -static int read_lbtable(struct lb_header *head, struct sys_info *info) -{ - int retval = 0; - - /* Read linuxbios tables... */ - struct lb_record *rec; - - for_each_lbrec(head, rec) { - switch(rec->tag) { - case LB_TAG_MEMORY: - convert_memmap((struct lb_memory *) rec, info); - retval = 1; - break; - }; - } - return retval; -} - -static unsigned long count_lb_records(void *start, unsigned long length) -{ - struct lb_record *rec; - void *end; - unsigned long count; - count = 0; - end = ((char *)start) + length; - for(rec = start; ((void *)rec < end) && - ((signed long)rec->size <= - ((signed long)end - (signed long)rec)); - rec = (void *)(((char *)rec) + rec->size)) { - count++; - } - return count; -} - -static int find_lb_table(void *start, void *end, struct lb_header **result) -{ - unsigned char *ptr; - /* For now be stupid.... */ - for(ptr = start; (void *)ptr < end; ptr += 16) { - struct lb_header *head = (struct lb_header *)ptr; - if ( (head->signature[0] != 'L') || - (head->signature[1] != 'B') || - (head->signature[2] != 'I') || - (head->signature[3] != 'O')) { - continue; - } - if (head->header_bytes != sizeof(*head)) - continue; - debug("Found canidate at: %p\n", head); - if (ipchksum((uint16_t *)head, sizeof(*head)) != 0) - continue; - debug("header checksum o.k.\n"); - if (ipchksum((uint16_t *)(ptr + sizeof(*head)), head->table_bytes) != - head->table_checksum) { - continue; - } - debug("table checksum o.k.\n"); - if (count_lb_records(ptr + sizeof(*head), head->table_bytes) != - head->table_entries) { - continue; - } - debug("record count o.k.\n"); - *result = head; - return 1; - }; - return 0; -} - -void collect_linuxbios_info(struct sys_info *info) -{ - struct lb_header *lb_table; - int found; - debug("Searching for LinuxBIOS tables...\n"); - found = 0; - if (!found) { - found = find_lb_table(phys_to_virt(0x00000), phys_to_virt(0x01000), &lb_table); - } - if (!found) { - found = find_lb_table(phys_to_virt(0xf0000), phys_to_virt(0x100000), &lb_table); - } - if (!found) - return; - - debug("Found LinuxBIOS table at: %p\n", lb_table); - info->firmware = "LinuxBIOS"; - read_lbtable(lb_table, info); -} |