[PATCH 09/11] x86/xen/enlighten: Add init and crash kexec/kdump hooks

From: Daniel Kiper
Date: Thu Sep 27 2012 - 14:23:57 EST


Add init and crash kexec/kdump hooks.

Signed-off-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
---
arch/x86/xen/enlighten.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 1fbe75a..5043d77 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -31,6 +31,7 @@
#include <linux/pci.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
+#include <linux/kexec.h>

#include <xen/xen.h>
#include <xen/interface/xen.h>
@@ -66,6 +67,7 @@
#include <asm/hypervisor.h>
#include <asm/mwait.h>
#include <asm/pci_x86.h>
+#include <asm/xen/kexec.h>

#ifdef CONFIG_ACPI
#include <linux/acpi.h>
@@ -1237,6 +1239,12 @@ static void xen_machine_power_off(void)

static void xen_crash_shutdown(struct pt_regs *regs)
{
+#ifdef CONFIG_KEXEC
+ if (kexec_crash_image) {
+ crash_save_cpu(regs, safe_smp_processor_id());
+ return;
+ }
+#endif
xen_reboot(SHUTDOWN_crash);
}

@@ -1315,6 +1323,10 @@ asmlinkage void __init xen_start_kernel(void)

xen_init_mmu_ops();

+#ifdef CONFIG_KEXEC
+ xen_init_kexec_ops();
+#endif
+
/* Prevent unwanted bits from being set in PTEs. */
__supported_pte_mask &= ~_PAGE_GLOBAL;
#if 0
--
1.5.6.5

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