kvm tools, setup: Create private directory
[linux-2.6/next.git] / arch / powerpc / platforms / pseries / kexec.c
blob54cf3a4aa16b31d58214655c1b69d209a7a335ac
1 /*
2 * Copyright 2006 Michael Ellerman, IBM Corporation
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
10 #include <linux/kernel.h>
11 #include <linux/interrupt.h>
13 #include <asm/machdep.h>
14 #include <asm/page.h>
15 #include <asm/firmware.h>
16 #include <asm/kexec.h>
17 #include <asm/mpic.h>
18 #include <asm/xics.h>
19 #include <asm/smp.h>
21 #include "pseries.h"
22 #include "plpar_wrappers.h"
24 static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
26 /* Don't risk a hypervisor call if we're crashing */
27 if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
28 unsigned long addr;
30 addr = __pa(get_slb_shadow());
31 if (unregister_slb_shadow(hard_smp_processor_id(), addr))
32 printk("SLB shadow buffer deregistration of "
33 "cpu %u (hw_cpu_id %d) failed\n",
34 smp_processor_id(),
35 hard_smp_processor_id());
37 addr = __pa(get_lppaca());
38 if (unregister_vpa(hard_smp_processor_id(), addr)) {
39 printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
40 "failed\n", smp_processor_id(),
41 hard_smp_processor_id());
46 static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary)
48 pseries_kexec_cpu_down(crash_shutdown, secondary);
49 mpic_teardown_this_cpu(secondary);
52 void __init setup_kexec_cpu_down_mpic(void)
54 ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_mpic;
57 static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
59 pseries_kexec_cpu_down(crash_shutdown, secondary);
60 xics_kexec_teardown_cpu(secondary);
63 void __init setup_kexec_cpu_down_xics(void)
65 ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_xics;