Commit 818987e9 authored by Cliff Wickman's avatar Cliff Wickman Committed by Ingo Molnar

x86, UV: Fix kdump reboot

After a crash dump on an SGI Altix UV system the crash kernel
fails to cause a reboot.  EFI mode is disabled in the kdump
kernel, so only the reboot_type of BOOT_ACPI works.
Signed-off-by: default avatarCliff Wickman <cpw@sgi.com>
Cc: rja@sgi.com
LKML-Reference: <E1Q5Iuo-00013b-UK@eag09.americas.sgi.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent cb6c8520
...@@ -24,6 +24,7 @@ ...@@ -24,6 +24,7 @@
#include <linux/pci.h> #include <linux/pci.h>
#include <linux/kdebug.h> #include <linux/kdebug.h>
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/crash_dump.h>
#include <asm/uv/uv_mmrs.h> #include <asm/uv/uv_mmrs.h>
#include <asm/uv/uv_hub.h> #include <asm/uv/uv_hub.h>
...@@ -35,6 +36,7 @@ ...@@ -35,6 +36,7 @@
#include <asm/ipi.h> #include <asm/ipi.h>
#include <asm/smp.h> #include <asm/smp.h>
#include <asm/x86_init.h> #include <asm/x86_init.h>
#include <asm/emergency-restart.h>
DEFINE_PER_CPU(int, x2apic_extra_bits); DEFINE_PER_CPU(int, x2apic_extra_bits);
...@@ -811,4 +813,11 @@ void __init uv_system_init(void) ...@@ -811,4 +813,11 @@ void __init uv_system_init(void)
/* register Legacy VGA I/O redirection handler */ /* register Legacy VGA I/O redirection handler */
pci_register_set_vga_state(uv_set_vga_state); pci_register_set_vga_state(uv_set_vga_state);
/*
* For a kdump kernel the reset must be BOOT_ACPI, not BOOT_EFI, as
* EFI is not enabled in the kdump kernel.
*/
if (is_kdump_kernel())
reboot_type = BOOT_ACPI;
} }
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