[S] Change in coreboot[master]: cpu/x86/mp_init.c: Set a bogus initial lapic_id

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/69108 )

Change subject: cpu/x86/mp_init.c: Set a bogus initial lapic_id
......................................................................

cpu/x86/mp_init.c: Set a bogus initial lapic_id

This makes it easier to catch errors later if the ap_init code fails to
properly set things up.

Change-Id: I938faf042bfa4fe1fc39e78ab740c9b210bc105c
Signed-off-by: Arthur Heymans 
---
M src/cpu/x86/mp_init.c
1 file changed, 18 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/08/69108/1

diff --git a/src/cpu/x86/mp_init.c b/src/cpu/x86/mp_init.c
index 8003ac5..d698634 100644
--- a/src/cpu/x86/mp_init.c
+++ b/src/cpu/x86/mp_init.c
@@ -374,9 +374,11 @@
    	/* Build the CPU device path */
    	cpu_path.type = DEVICE_PATH_APIC;

-		/* Assuming linear APIC space allocation. AP will set its own
-		   APIC id in the ap_init() path above. */
-		cpu_path.apic.apic_id = info->cpu->path.apic.apic_id + i;
+		/*
+		 * Set a bogus apic_id.
+		 * AP will set its own APIC id in the ap_init() path above.
+		 */
+		cpu_path.apic.apic_id = UINT32_MAX;

/* Allocate the new CPU device structure */
    	new = alloc_find_dev(cpu_bus, &cpu_path);