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.
10 #include <linux/kernel.h>
11 #include <linux/interrupt.h>
13 #include <asm/machdep.h>
15 #include <asm/firmware.h>
16 #include <asm/kexec.h>
19 #include <asm/plpar_wrappers.h>
23 void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
25 /* Don't risk a hypervisor call if we're crashing */
26 if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
28 int cpu = smp_processor_id();
29 int hwcpu = hard_smp_processor_id();
31 if (get_lppaca()->dtl_enable_mask) {
32 ret = unregister_dtl(hwcpu);
34 pr_err("WARNING: DTL deregistration for cpu "
35 "%d (hw %d) failed with %d\n",
40 ret = unregister_slb_shadow(hwcpu);
42 pr_err("WARNING: SLB shadow buffer deregistration "
43 "for cpu %d (hw %d) failed with %d\n",
47 ret = unregister_vpa(hwcpu);
49 pr_err("WARNING: VPA deregistration for cpu %d "
50 "(hw %d) failed with %d\n", cpu, hwcpu, ret);
54 xics_kexec_teardown_cpu(secondary);