[src/trunk]: src/sys/arch/arm/acpi Only attach to usable processors

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/9cab2540305c
branches:  trunk
changeset: 445182:9cab2540305c
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Tue Oct 16 16:18:15 2018 +0000

description:
Only attach to usable processors

diffstat:

 sys/arch/arm/acpi/cpu_acpi.c |  12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

diffs (34 lines):

diff -r 4942ee6f1f12 -r 9cab2540305c sys/arch/arm/acpi/cpu_acpi.c
--- a/sys/arch/arm/acpi/cpu_acpi.c      Tue Oct 16 13:18:25 2018 +0000
+++ b/sys/arch/arm/acpi/cpu_acpi.c      Tue Oct 16 16:18:15 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: cpu_acpi.c,v 1.1 2018/10/12 22:20:04 jmcneill Exp $ */
+/* $NetBSD: cpu_acpi.c,v 1.2 2018/10/16 16:18:15 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu_acpi.c,v 1.1 2018/10/12 22:20:04 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu_acpi.c,v 1.2 2018/10/16 16:18:15 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -63,8 +63,14 @@
 cpu_acpi_match(device_t parent, cfdata_t cf, void *aux)
 {
        ACPI_SUBTABLE_HEADER *hdrp = aux;
+       ACPI_MADT_GENERIC_INTERRUPT *gicc;
 
-       return hdrp->Type == ACPI_MADT_TYPE_GENERIC_INTERRUPT;
+       if (hdrp->Type != ACPI_MADT_TYPE_GENERIC_INTERRUPT)
+               return 0;
+
+       gicc = (ACPI_MADT_GENERIC_INTERRUPT *)hdrp;
+
+       return (gicc->Flags & ACPI_MADT_ENABLED) != 0;
 }
 
 static void