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-rw-r--r--src/cpu/amd/family_10h-family_15h/init_cpus.c22
1 files changed, 16 insertions, 6 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 2ddbc43ee6..b8e11e4ccc 100644
--- a/src/cpu/amd/family_10h-family_15h/init_cpus.c
+++ b/src/cpu/amd/family_10h-family_15h/init_cpus.c
@@ -147,6 +147,9 @@ static void for_each_ap(uint32_t bsp_apicid, uint32_t core_range, int8_t node,
// here assume the OS don't change our apicid
u32 ap_apicid;
+ u8 nvram;
+ bool multicore;
+
u32 nodes;
u32 disable_siblings;
u32 cores_found;
@@ -155,12 +158,13 @@ static void for_each_ap(uint32_t bsp_apicid, uint32_t core_range, int8_t node,
/* get_nodes define in ht_wrapper.c */
nodes = get_nodes();
- if (!IS_ENABLED(CONFIG_LOGICAL_CPUS) ||
- read_option(multi_core, 0) != 0) { // 0 means multi core
+ multicore = true;
+ if (get_option(&nvram, "multi_core") == CB_SUCCESS)
+ multicore = !!nvram;
+
+ disable_siblings = 0;
+ if (!IS_ENABLED(CONFIG_LOGICAL_CPUS) || !multicore)
disable_siblings = 1;
- } else {
- disable_siblings = 0;
- }
for (i = 0; i < nodes; i++) {
if ((node >= 0) && (i != node))
@@ -635,11 +639,17 @@ static void setup_remote_node(u8 node)
//it is running on core0 of node0
void start_other_cores(uint32_t bsp_apicid)
{
+ u8 nvram;
u32 nodes;
u32 nodeid;
+ bool multicore;
// disable multi_core
- if (read_option(multi_core, 0) != 0) {
+ multicore = true;
+ if (get_option(&nvram, "multi_core") == CB_SUCCESS)
+ multicore = !!nvram;
+
+ if (!multicore) {
printk(BIOS_DEBUG, "Skip additional core init\n");
return;
}