[S] Change in coreboot[master]: cpu/mp_init.c: Only enable CPUs once they execute code

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/68892 )

Change subject: cpu/mp_init.c: Only enable CPUs once they execute code
......................................................................

cpu/mp_init.c: Only enable CPUs once they execute code

On some systems the BSP cannot know how many CPUs are present in the
system. A typical use case is a multi socket system. Setting the enable
flag only on CPUs that actually exist makes it more flexible.

Change-Id: I6c8042b4d6127239175924f996f735bf9c83c6e8
Signed-off-by: Arthur Heymans 
---
M src/cpu/x86/mp_init.c
1 file changed, 16 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/92/68892/1

diff --git a/src/cpu/x86/mp_init.c b/src/cpu/x86/mp_init.c
index 2f16db6..12f0bf6 100644
--- a/src/cpu/x86/mp_init.c
+++ b/src/cpu/x86/mp_init.c
@@ -195,6 +195,7 @@
    /* Fix up APIC id with reality. */
    dev->path.apic.apic_id = lapicid();
    dev->path.apic.initial_lapicid = initial_lapicid();
+	dev->enabled = 1;

if (cpu_is_intel())
    	printk(BIOS_INFO, "AP: slot %zu apic_id %x, MCU rev: 0x%08x\n", info->index,
@@ -373,7 +374,7 @@
    	/* Assuming linear APIC space allocation. AP will set its own
    	   APIC id in the ap_init() path above. */
    	struct device *new = add_cpu_device(cpu_bus, info->cpu->path.apic.apic_id + i,
-						    1);
+						    0);
    	if (new == NULL) {
    		printk(BIOS_CRIT, "Could not allocate CPU device\n");
    		max_cpus--;