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-rw-r--r--hw/mac_nvram.c51
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);
}