- if(new_low_table_end>0x467){
- unsigned mptable_size = new_low_table_end - low_table_end - SMP_FLOATING_TABLE_LEN;
- /* We can not put mptable here, we need to copy them to somewhere else*/
- if((rom_table_end+mptable_size)<0x100000) {
- /* We can copy mptable on rom_table, and leave low space for lbtable */
- printk_debug("move mptable to 0x%0x\n", rom_table_end);
- memcpy((unsigned char *)rom_table_end, (unsigned char *)(low_table_end+SMP_FLOATING_TABLE_LEN), mptable_size);
- memset((unsigned char *)low_table_end, '\0', mptable_size + SMP_FLOATING_TABLE_LEN);
- smp_write_floating_table_physaddr(low_table_end, rom_table_end);
- low_table_end += SMP_FLOATING_TABLE_LEN;
- rom_table_end += mptable_size;
- rom_table_end = (rom_table_end+1023) & ~1023;
- } else {
- /* We can need to put mptable low and from 0x500 */
- printk_debug("move mptable to 0x%0x\n", 0x500);
- memcpy((unsigned char *)0x500, (unsigned char *)(low_table_end+SMP_FLOATING_TABLE_LEN), mptable_size);
- memset((unsigned char *)low_table_end, '\0', 0x500-low_table_end);
- smp_write_floating_table_physaddr(low_table_end, 0x500);
- low_table_end = 0x500 + mptable_size;
- }
- }
-
- /* Don't write anything in the traditional x86 BIOS data segment */
+ if(new_low_table_end>0x467){
+ unsigned mptable_size;
+ unsigned mpc_start;
+ low_table_end += SMP_FLOATING_TABLE_LEN; /* keep the mpf in 1k low, so kernel can find it */
+ mptable_size = new_low_table_end - low_table_end;
+ /* We can not put mptable low, we need to copy them to somewhere else*/
+ if((rom_table_end+mptable_size)<0x100000) {
+ /* We can copy mptable on rom_table */
+ mpc_start = rom_table_end;
+ rom_table_end += mptable_size;
+ rom_table_end = (rom_table_end+1023) & ~1023;
+ } else {
+ /* We can need to put mptable before rom_table */
+ mpc_start = rom_table_start - mptable_size;
+ mpc_start &= ~1023;
+ rom_table_start = mpc_start;
+ }
+ printk_debug("move mptable from 0x%0x to 0x%0x, size 0x%0x\n", low_table_end, mpc_start, mptable_size);
+ memcpy((unsigned char *)mpc_start, (unsigned char *)low_table_end, mptable_size);
+ smp_write_floating_table_physaddr(low_table_end - SMP_FLOATING_TABLE_LEN, mpc_start);
+ memset((unsigned char *)low_table_end, '\0', mptable_size);
+ }
+#endif
+