/* create_mp_tables - creates MP tables for the guest based upon config data */
void create_mp_tables(void)
{
void *mp_table_base;
char *p;
int vcpu_nr, i, length;
vcpu_nr = hvm_info->nr_vcpus;
printf("Creating MP tables ...\n");
/* Find the 'safe' place in ROMBIOS for the MP tables. */
mp_table_base = get_mp_table_start();
if ( mp_table_base == NULL )
{
printf("Couldn't find start point for MP tables\n");
return;
}
p = mp_table_base + sizeof(struct mp_config_table);
for ( i = 0; i < vcpu_nr; i++ )
{
fill_mp_proc_entry((struct mp_proc_entry *)p, i);
p += sizeof(struct mp_proc_entry);
}
fill_mp_bus_entry((struct mp_bus_entry *)p, BUS_ID_ISA, BUS_TYPE_STR_ISA);
p += sizeof(struct mp_bus_entry);
fill_mp_ioapic_entry((struct mp_ioapic_entry *)p);
p += sizeof(struct mp_ioapic_entry);
for ( i = 0; i < 16; i++ )
{
if ( i == 2 ) continue; /* skip the slave PIC connection */
fill_mp_io_intr_entry((struct mp_io_intr_entry *)p,
BUS_ID_ISA, i, IOAPIC_ID, (i == 0) ? 2 : i);
p += sizeof(struct mp_io_intr_entry);
}
length = p - (char *)mp_table_base;
/* find the next 16-byte boundary to place the mp floating pointer */
while ( (unsigned long)p & 0xF )
p++;
fill_mpfps((struct mp_floating_pointer_struct *)p,
(uint32_t)mp_table_base);
fill_mp_config_table((struct mp_config_table *)mp_table_base, length);
reset_bios_checksum();
}
static void rombios_create_mp_tables(void)
{
/* Find the 'safe' place in ROMBIOS for the MP tables. */
void *table = get_mp_table_start();
if ( table == NULL )
{
printf("Couldn't find start point for MP tables\n");
return;
}
create_mp_tables(table);
reset_bios_checksum();
}