[IA64] kexec: Unregister MCA handler before kexec

[linux-2.6-block.git] / arch / ia64 / kernel / machine_kexec.c

diff --git a/arch/ia64/kernel/machine_kexec.c b/arch/ia64/kernel/machine_kexec.c
index 4f0f3b8c1ee2b14cdd6b498fae39bb94fc818f18..3d3aeef469476a85ed4d149608ebd891e72c5f6c 100644 (file)
--- a/arch/ia64/kernel/machine_kexec.c
+++ b/arch/ia64/kernel/machine_kexec.c
@@ -15,10 +15,17 @@
 #include <linux/cpu.h>
 #include <linux/irq.h>
 #include <linux/efi.h>
+#include <linux/numa.h>
+#include <linux/mmzone.h>
+
+#include <asm/numa.h>
 #include <asm/mmu_context.h>
 #include <asm/setup.h>
 #include <asm/delay.h>
 #include <asm/meminit.h>
+#include <asm/processor.h>
+#include <asm/sal.h>
+#include <asm/mca.h>
 
 typedef NORET_TYPE void (*relocate_new_kernel_t)(
                                        unsigned long indirection_page,
@@ -79,15 +86,27 @@ static void ia64_machine_kexec(struct unw_frame_info *info, void *arg)
        relocate_new_kernel_t rnk;
        void *pal_addr = efi_get_pal_addr();
        unsigned long code_addr = (unsigned long)page_address(image->control_code_page);
-       unsigned long vector;
        int ii;
+       u64 fp, gp;
+       ia64_fptr_t *init_handler = (ia64_fptr_t *)ia64_os_init_on_kdump;
 
        BUG_ON(!image);
        if (image->type == KEXEC_TYPE_CRASH) {
                crash_save_this_cpu();
                current->thread.ksp = (__u64)info->sw - 16;
+
+               /* Register noop init handler */
+               fp = ia64_tpa(init_handler->fp);
+               gp = ia64_tpa(ia64_getreg(_IA64_REG_GP));
+               ia64_sal_set_vectors(SAL_VECTOR_OS_INIT, fp, gp, 0, fp, gp, 0);
+       } else {
+               /* Unregister init handlers of current kernel */
+               ia64_sal_set_vectors(SAL_VECTOR_OS_INIT, 0, 0, 0, 0, 0, 0);
        }
 
+       /* Unregister mca handler - No more recovery on current kernel */
+       ia64_sal_set_vectors(SAL_VECTOR_OS_MCA, 0, 0, 0, 0, 0, 0);
+
        /* Interrupts aren't acceptable while we reboot */
        local_irq_disable();
 
@@ -107,11 +126,8 @@ static void ia64_machine_kexec(struct unw_frame_info *info, void *arg)
        /* unmask TPR and clear any pending interrupts */
        ia64_setreg(_IA64_REG_CR_TPR, 0);
        ia64_srlz_d();
-       vector = ia64_get_ivr();
-       while (vector != IA64_SPURIOUS_INT_VECTOR) {
+       while (ia64_get_ivr() != IA64_SPURIOUS_INT_VECTOR)
                ia64_eoi();
-               vector = ia64_get_ivr();
-       }
        platform_kernel_launch_event();
        rnk = (relocate_new_kernel_t)&code_addr;
        (*rnk)(image->head, image->start, ia64_boot_param,
@@ -125,3 +141,29 @@ void machine_kexec(struct kimage *image)
        unw_init_running(ia64_machine_kexec, image);
        for(;;);
 }
+
+void arch_crash_save_vmcoreinfo(void)
+{
+#if defined(CONFIG_DISCONTIGMEM) || defined(CONFIG_SPARSEMEM)
+       VMCOREINFO_SYMBOL(pgdat_list);
+       VMCOREINFO_LENGTH(pgdat_list, MAX_NUMNODES);
+#endif
+#ifdef CONFIG_NUMA
+       VMCOREINFO_SYMBOL(node_memblk);
+       VMCOREINFO_LENGTH(node_memblk, NR_NODE_MEMBLKS);
+       VMCOREINFO_STRUCT_SIZE(node_memblk_s);
+       VMCOREINFO_OFFSET(node_memblk_s, start_paddr);
+       VMCOREINFO_OFFSET(node_memblk_s, size);
+#endif
+#ifdef CONFIG_PGTABLE_3
+       VMCOREINFO_CONFIG(PGTABLE_3);
+#elif  CONFIG_PGTABLE_4
+       VMCOREINFO_CONFIG(PGTABLE_4);
+#endif
+}
+
+unsigned long paddr_vmcoreinfo_note(void)
+{
+       return ia64_tpa((unsigned long)(char *)&vmcoreinfo_note);
+}
+