diff options
Diffstat (limited to 'src/cpu/amd/family_10h-family_15h/init_cpus.c')
| -rw-r--r-- | src/cpu/amd/family_10h-family_15h/init_cpus.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/cpu/amd/family_10h-family_15h/init_cpus.c b/src/cpu/amd/family_10h-family_15h/init_cpus.c index 1794072a64..5a676015ee 100644 --- a/src/cpu/amd/family_10h-family_15h/init_cpus.c +++ b/src/cpu/amd/family_10h-family_15h/init_cpus.c @@ -127,13 +127,17 @@ uint32_t get_boot_apic_id(uint8_t node, uint32_t core) { } } else { if (fam15h) { - ap_apicid = (node * (siblings + 1)) + core; + ap_apicid = 0; + ap_apicid |= (node & 0x7) << 4; /* Node ID */ + ap_apicid |= core & 0xf; /* Core ID */ } else { ap_apicid = node * (nb_cfg_54 ? (siblings + 1) : 1) + core * (nb_cfg_54 ? 1 : 64); } } + printk(BIOS_DEBUG, "%s: using %d as APIC ID for node %d, core %d\n", __func__, ap_apicid, node, core); + return ap_apicid; } |