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: Cliff Wickman <cpw@sgi.com> Cc: rja@sgi.com LKML-Reference: <E1Q5Iuo-00013b-UK@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -24,6 +24,7 @@
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#include <linux/pci.h>
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#include <linux/kdebug.h>
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#include <linux/delay.h>
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#include <linux/crash_dump.h>
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#include <asm/uv/uv_mmrs.h>
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#include <asm/uv/uv_hub.h>
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@ -35,6 +36,7 @@
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#include <asm/ipi.h>
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#include <asm/smp.h>
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#include <asm/x86_init.h>
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#include <asm/emergency-restart.h>
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DEFINE_PER_CPU(int, x2apic_extra_bits);
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@ -811,4 +813,11 @@ void __init uv_system_init(void)
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/* register Legacy VGA I/O redirection handler */
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pci_register_set_vga_state(uv_set_vga_state);
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/*
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* For a kdump kernel the reset must be BOOT_ACPI, not BOOT_EFI, as
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* EFI is not enabled in the kdump kernel.
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*/
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if (is_kdump_kernel())
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reboot_type = BOOT_ACPI;
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}
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