Use broadcast SIPI to startup siblings
The current code for initializing AP cpus has several shortcomings:
- it assumes APIC IDs are sequential
- it uses only the BSP for determining the AP count, which is bad if
there's more than one physical CPU, and CPUs are of different type
Note that the new code call cpu->ops->init() in parallel, and therefore
some CPU code needs to be changed to address that. One example are old
Intel HT enabled CPUs which can't do microcode update in parallel.
Change-Id: Ic48a1ebab6a7c52aa76765f497268af09fa38c25
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/1139
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
diff --git a/src/include/device/path.h b/src/include/device/path.h
index 63e9538..018fb93 100644
--- a/src/include/device/path.h
+++ b/src/include/device/path.h
@@ -40,6 +40,7 @@
unsigned apic_id;
unsigned node_id;
unsigned core_id;
+ unsigned index;
};
struct apic_cluster_path