BSP is not added to the mask of valid target CPUs for interrupts

in set_apic_interrupt_ids(). Besides, set_apic_interrupts_ids() is not
called in the !SMP case too.
Fix this by:
- Adding the BSP as an interrupt target directly in cpu_startup().
- Remove an obsolete optimization where the BSP are skipped in
  set_apic_interrupt_ids().

Reported by:	jh
Reviewed by:	jhb
MFC after:	3 days
X-MFC:		r233961
Pointy hat to:	me

1 files changed, 0 insertions, 4 deletions

diff --git a/sys/amd64/amd64/mp_machdep.c b/sys/amd64/amd64/mp_machdep.c
index 043d5af..cf36d9e 100644
--- a/sys/amd64/amd64/mp_machdep.c
+++ b/sys/amd64/amd64/mp_machdep.c
@@ -785,8 +785,6 @@ init_secondary(void)
  * We tell the I/O APIC code about all the CPUs we want to receive
  * interrupts.  If we don't want certain CPUs to receive IRQs we
  * can simply not tell the I/O APIC code about them in this function.
- * We also do not tell it about the BSP since it tells itself about
- * the BSP internally to work with UP kernels and on UP machines.
  */
 static void
 set_interrupt_apic_ids(void)
@@ -797,8 +795,6 @@ set_interrupt_apic_ids(void)
 		apic_id = cpu_apic_ids[i];
 		if (apic_id == -1)
 			continue;
-		if (cpu_info[apic_id].cpu_bsp)
-			continue;
 		if (cpu_info[apic_id].cpu_disabled)
 			continue;