diff options
Diffstat (limited to 'hw/mac_nvram.c')
-rw-r--r-- | hw/mac_nvram.c | 51 |
1 files changed, 31 insertions, 20 deletions
diff --git a/hw/mac_nvram.c b/hw/mac_nvram.c index 3787f54d65..773f2d8aec 100644 --- a/hw/mac_nvram.c +++ b/hw/mac_nvram.c @@ -23,6 +23,8 @@ * THE SOFTWARE. */ #include "hw.h" +#include "firmware_abi.h" +#include "sysemu.h" #include "ppc_mac.h" /* debug NVR */ @@ -122,26 +124,35 @@ void macio_nvram_map (void *opaque, target_phys_addr_t mem_base) cpu_register_physical_memory(mem_base, s->size, s->mem_index); } -static uint8_t nvram_chksum (const uint8_t *buf, int n) -{ - int sum, i; - sum = 0; - for(i = 0; i < n; i++) - sum += buf[i]; - return (sum & 0xff) + (sum >> 8); -} - -/* set a free Mac OS NVRAM partition */ +/* Set up a system OpenBIOS NVRAM partition */ void pmac_format_nvram_partition (MacIONVRAMState *nvr, int len) { - uint8_t *buf; - char partition_name[12] = "wwwwwwwwwwww"; - - buf = nvr->data; - buf[0] = 0x7f; /* free partition magic */ - buf[1] = 0; /* checksum */ - buf[2] = len >> 8; - buf[3] = len; - memcpy(buf + 4, partition_name, 12); - buf[1] = nvram_chksum(buf, 16); + unsigned int i; + uint32_t start = 0, end; + struct OpenBIOS_nvpart_v1 *part_header; + + // OpenBIOS nvram variables + // Variable partition + part_header = (struct OpenBIOS_nvpart_v1 *)nvr->data; + part_header->signature = OPENBIOS_PART_SYSTEM; + pstrcpy(part_header->name, sizeof(part_header->name), "system"); + + end = start + sizeof(struct OpenBIOS_nvpart_v1); + for (i = 0; i < nb_prom_envs; i++) + end = OpenBIOS_set_var(nvr->data, end, prom_envs[i]); + + // End marker + nvr->data[end++] = '\0'; + + end = start + ((end - start + 15) & ~15); + OpenBIOS_finish_partition(part_header, end - start); + + // free partition + start = end; + part_header = (struct OpenBIOS_nvpart_v1 *)&nvr->data[start]; + part_header->signature = OPENBIOS_PART_FREE; + pstrcpy(part_header->name, sizeof(part_header->name), "free"); + + end = len; + OpenBIOS_finish_partition(part_header, end - start); } |