Change in coreboot[master]: cpu/x86/mp_init.c: Print out the microcode revision of APs

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/49840 )

Change subject: cpu/x86/mp_init.c: Print out the microcode revision of APs
......................................................................

cpu/x86/mp_init.c: Print out the microcode revision of APs

It is useful to know if MCU have been applied successfully.

On the start of MP init lines similar to:
"AP: slot 1 apic_id 1, MCU rev: 0x0700001d" will be printed.
The example is taken from the log of an ocp/deltalake.

Change-Id: Ia0a6428b41d07f87943f3aa7736b8cb457fdd15a
Signed-off-by: Arthur Heymans 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49840
Reviewed-by: Patrick Rudolph 
Reviewed-by: Angel Pons 
Tested-by: build bot (Jenkins) 
---
M src/cpu/x86/mp_init.c
1 file changed, 6 insertions(+), 2 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Patrick Rudolph: Looks good to me, approved
  Angel Pons: Looks good to me, approved

diff --git a/src/cpu/x86/mp_init.c b/src/cpu/x86/mp_init.c
index c691c48..cca6093 100644
--- a/src/cpu/x86/mp_init.c
+++ b/src/cpu/x86/mp_init.c
@@ -196,8 +196,12 @@
    /* Fix up APIC id with reality. */
    info->cpu->path.apic.apic_id = lapicid();

-	printk(BIOS_INFO, "AP: slot %d apic_id %x.\n", cpu,
-		info->cpu->path.apic.apic_id);
+	if (cpu_is_intel())
+		printk(BIOS_INFO, "AP: slot %d apic_id %x, MCU rev: 0x%08x\n", cpu,
+		       info->cpu->path.apic.apic_id, get_current_microcode_rev());
+	else
+		printk(BIOS_INFO, "AP: slot %d apic_id %x\n", cpu,
+		       info->cpu->path.apic.apic_id);

/* Walk the flight plan */
    ap_do_flight_plan();