802 lines
22 KiB
Diff
802 lines
22 KiB
Diff
From: Geoff Levand <geoff@infradead.org>
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Date: Mon, 15 Jul 2013 23:32:36 +0000 (-0700)
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Subject: Add arm64 support
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X-Git-Url: https://git.linaro.org/gitweb?p=people%2Fgeoff%2Fkexec-tools.git;a=commitdiff_plain;h=fbf5ac6c2c70ec0f6da2b9ff563e573999752c01
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Add arm64 support
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Signed-off-by: Geoff Levand <geoff@infradead.org>
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Get patch from:
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https://fedorapeople.org/~hrw/aarch64/for-fedora/kexec-aarch64.patch
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Upstream-Status: Pending
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Signed-off-by: Kai Kang <kai.kang@windriver.com>
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---
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---
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configure.ac | 3
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kexec/Makefile | 1
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kexec/arch/arm64/Makefile | 13 +
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kexec/arch/arm64/crashdump-arm64.c | 305 ++++++++++++++++++++++++++++++++
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kexec/arch/arm64/include/arch/options.h | 26 ++
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kexec/arch/arm64/kexec-arm64.c | 177 ++++++++++++++++++
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kexec/arch/arm64/kexec-arm64.h | 20 ++
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kexec/arch/arm64/kexec-elf-arm64.c | 114 +++++++++++
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kexec/kexec-syscall.h | 9
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kexec/kexec.c | 2
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purgatory/arch/arm64/Makefile | 7
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11 files changed, 675 insertions(+), 2 deletions(-)
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Index: kexec-tools-2.0.10/configure.ac
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===================================================================
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--- kexec-tools-2.0.10.orig/configure.ac
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+++ kexec-tools-2.0.10/configure.ac
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@@ -36,6 +36,9 @@ case $target_cpu in
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ARCH="ppc64"
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SUBARCH="LE"
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;;
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+ aarch64* )
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+ ARCH="arm64"
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+ ;;
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arm* )
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ARCH="arm"
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;;
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Index: kexec-tools-2.0.10/kexec/Makefile
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===================================================================
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--- kexec-tools-2.0.10.orig/kexec/Makefile
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+++ kexec-tools-2.0.10/kexec/Makefile
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@@ -71,6 +71,7 @@ KEXEC_SRCS += $($(ARCH)_FS2DT)
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include $(srcdir)/kexec/arch/alpha/Makefile
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include $(srcdir)/kexec/arch/arm/Makefile
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+include $(srcdir)/kexec/arch/arm64/Makefile
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include $(srcdir)/kexec/arch/i386/Makefile
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include $(srcdir)/kexec/arch/ia64/Makefile
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include $(srcdir)/kexec/arch/m68k/Makefile
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Index: kexec-tools-2.0.10/kexec/arch/arm64/Makefile
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===================================================================
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--- /dev/null
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+++ kexec-tools-2.0.10/kexec/arch/arm64/Makefile
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@@ -0,0 +1,13 @@
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+
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+arm64_KEXEC_SRCS += \
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+ kexec/arch/arm64/kexec-arm64.c \
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+ kexec/arch/arm64/kexec-elf-arm64.c \
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+ kexec/arch/arm64/crashdump-arm64.c
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+
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+arm64_ARCH_REUSE_INITRD =
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+arm64_ADD_SEGMENT =
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+arm64_VIRT_TO_PHYS =
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+
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+dist += $(arm64_KEXEC_SRCS) \
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+ kexec/arch/arm64/Makefile \
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+ kexec/arch/arm64/kexec-arm64.h
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Index: kexec-tools-2.0.10/kexec/arch/arm64/crashdump-arm64.c
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===================================================================
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--- /dev/null
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+++ kexec-tools-2.0.10/kexec/arch/arm64/crashdump-arm64.c
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@@ -0,0 +1,305 @@
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+/*
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation (version 2 of the License).
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+ */
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+
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+#include "../../kexec.h"
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+#include "../../kexec-elf.h"
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+#include "../../crashdump.h"
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+
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+int is_crashkernel_mem_reserved(void)
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+{
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+ return 0;
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+}
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+
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+#if 0
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+/*
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+ * Used to save various memory ranges/regions needed for the captured
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+ * kernel to boot. (lime memmap= option in other archs)
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+ */
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+static struct memory_range crash_memory_ranges[CRASH_MAX_MEMORY_RANGES];
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+struct memory_ranges usablemem_rgns = {
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+ .size = 0,
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+ .ranges = crash_memory_ranges,
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+};
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+
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+/* memory range reserved for crashkernel */
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+static struct memory_range crash_reserved_mem;
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+
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+static struct crash_elf_info elf_info = {
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+ .class = ELFCLASS32,
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+ .data = ELFDATA2LSB,
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+ .machine = EM_ARM,
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+ .page_offset = PAGE_OFFSET,
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+};
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+
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+unsigned long phys_offset;
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+
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+/**
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+ * crash_range_callback() - callback called for each iomem region
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+ * @data: not used
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+ * @nr: not used
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+ * @str: name of the memory region
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+ * @base: start address of the memory region
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+ * @length: size of the memory region
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+ *
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+ * This function is called once for each memory region found in /proc/iomem. It
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+ * locates system RAM and crashkernel reserved memory and places these to
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+ * variables: @crash_memory_ranges and @crash_reserved_mem. Number of memory
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+ * regions is placed in @crash_memory_nr_ranges.
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+ */
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+static int crash_range_callback(void *UNUSED(data), int UNUSED(nr),
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+ char *str, unsigned long base,
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+ unsigned long length)
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+{
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+ struct memory_range *range;
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+
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+ if (usablemem_rgns.size >= CRASH_MAX_MEMORY_RANGES)
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+ return 1;
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+
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+ range = usablemem_rgns.ranges + usablemem_rgns.size;
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+
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+ if (strncmp(str, "System RAM\n", 11) == 0) {
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+ range->start = base;
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+ range->end = base + length - 1;
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+ range->type = RANGE_RAM;
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+ usablemem_rgns.size++;
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+ } else if (strncmp(str, "Crash kernel\n", 13) == 0) {
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+ crash_reserved_mem.start = base;
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+ crash_reserved_mem.end = base + length - 1;
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+ crash_reserved_mem.type = RANGE_RAM;
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+ }
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+
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+ return 0;
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+}
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+
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+/**
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+ * crash_exclude_range() - excludes memory region reserved for crashkernel
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+ *
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+ * Function locates where crashkernel reserved memory is and removes that region
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+ * from the available memory regions.
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+ */
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+static void crash_exclude_range(void)
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+{
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+ const struct memory_range *range = &crash_reserved_mem;
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+ int i;
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+
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+ for (i = 0; i < usablemem_rgns.size; i++) {
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+ struct memory_range *r = usablemem_rgns.ranges + i;
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+
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+ /*
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+ * We assume that crash area is fully contained in
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+ * some larger memory area.
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+ */
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+ if (r->start <= range->start && r->end >= range->end) {
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+ struct memory_range *new;
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+ /*
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+ * Let's split this area into 2 smaller ones and
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+ * remove excluded range from between. First create
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+ * new entry for the remaining area.
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+ */
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+ new = usablemem_rgns.ranges + usablemem_rgns.size;
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+ new->start = range->end + 1;
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+ new->end = r->end;
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+ usablemem_rgns.size++;
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+ /*
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+ * Next update this area to end before excluded range.
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+ */
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+ r->end = range->start - 1;
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+ break;
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+ }
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+ }
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+}
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+
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+static int range_cmp(const void *a1, const void *a2)
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+{
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+ const struct memory_range *r1 = a1;
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+ const struct memory_range *r2 = a2;
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+
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+ if (r1->start > r2->start)
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+ return 1;
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+ if (r1->start < r2->start)
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+ return -1;
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+
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+ return 0;
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+}
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+
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+/**
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+ * crash_get_memory_ranges() - read system physical memory
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+ *
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+ * Function reads through system physical memory and stores found memory regions
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+ * in @crash_memory_ranges. Number of memory regions found is placed in
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+ * @crash_memory_nr_ranges. Regions are sorted in ascending order.
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+ *
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+ * Returns %0 in case of success and %-1 otherwise (errno is set).
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+ */
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+static int crash_get_memory_ranges(void)
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+{
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+ /*
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+ * First read all memory regions that can be considered as
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+ * system memory including the crash area.
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+ */
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+ kexec_iomem_for_each_line(NULL, crash_range_callback, NULL);
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+
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+ if (usablemem_rgns.size < 1) {
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+ errno = EINVAL;
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+ return -1;
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+ }
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+
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+ /*
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+ * Exclude memory reserved for crashkernel (this may result a split memory
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+ * region).
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+ */
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+ crash_exclude_range();
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+
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+ /*
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+ * Make sure that the memory regions are sorted.
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+ */
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+ qsort(usablemem_rgns.ranges, usablemem_rgns.size,
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+ sizeof(*usablemem_rgns.ranges), range_cmp);
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+
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+ return 0;
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+}
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+
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+/**
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+ * cmdline_add_elfcorehdr() - adds elfcorehdr= to @cmdline
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+ * @cmdline: buffer where parameter is placed
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+ * @elfcorehdr: physical address of elfcorehdr
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+ *
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+ * Function appends 'elfcorehdr=start' at the end of the command line given in
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+ * @cmdline. Note that @cmdline must be at least %COMMAND_LINE_SIZE bytes long
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+ * (inclunding %NUL).
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+ */
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+static void cmdline_add_elfcorehdr(char *cmdline, unsigned long elfcorehdr)
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+{
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+ char buf[COMMAND_LINE_SIZE];
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+ int buflen;
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+
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+ buflen = snprintf(buf, sizeof(buf), "%s elfcorehdr=%#lx",
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+ cmdline, elfcorehdr);
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+ if (buflen < 0)
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+ die("Failed to construct elfcorehdr= command line parameter\n");
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+ if (buflen >= sizeof(buf))
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+ die("Command line overflow\n");
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+
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+ (void) strncpy(cmdline, buf, COMMAND_LINE_SIZE);
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+ cmdline[COMMAND_LINE_SIZE - 1] = '\0';
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+}
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+
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+/**
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+ * cmdline_add_mem() - adds mem= parameter to kernel command line
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+ * @cmdline: buffer where parameter is placed
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+ * @size: size of the kernel reserved memory (in bytes)
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+ *
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+ * This function appends 'mem=size' at the end of the command line given in
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+ * @cmdline. Note that @cmdline must be at least %COMMAND_LINE_SIZE bytes long
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+ * (including %NUL).
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+ */
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+static void cmdline_add_mem(char *cmdline, unsigned long size)
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+{
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+ char buf[COMMAND_LINE_SIZE];
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+ int buflen;
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+
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+ buflen = snprintf(buf, sizeof(buf), "%s mem=%ldK", cmdline, size >> 10);
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+ if (buflen < 0)
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+ die("Failed to construct mem= command line parameter\n");
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+ if (buflen >= sizeof(buf))
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+ die("Command line overflow\n");
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+
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+ (void) strncpy(cmdline, buf, COMMAND_LINE_SIZE);
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+ cmdline[COMMAND_LINE_SIZE - 1] = '\0';
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+}
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+
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+static unsigned long long range_size(const struct memory_range *r)
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+{
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+ return r->end - r->start + 1;
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+}
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+
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+static void dump_memory_ranges(void)
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+{
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+ int i;
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+
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+ if (!kexec_debug)
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+ return;
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+
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+ dbgprintf("crashkernel: [%#llx - %#llx] (%ldM)\n",
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+ crash_reserved_mem.start, crash_reserved_mem.end,
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+ (unsigned long)range_size(&crash_reserved_mem) >> 20);
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+
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+ for (i = 0; i < usablemem_rgns.size; i++) {
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+ struct memory_range *r = usablemem_rgns.ranges + i;
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+ dbgprintf("memory range: [%#llx - %#llx] (%ldM)\n",
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+ r->start, r->end, (unsigned long)range_size(r) >> 20);
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+ }
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+}
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+
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+/**
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+ * load_crashdump_segments() - loads additional segments needed for kdump
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+ * @info: kexec info structure
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+ * @mod_cmdline: kernel command line
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+ *
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+ * This function loads additional segments which are needed for the dump capture
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+ * kernel. It also updates kernel command line passed in @mod_cmdline to have
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+ * right parameters for the dump capture kernel.
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+ *
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+ * Return %0 in case of success and %-1 in case of error.
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+ */
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+int load_crashdump_segments(struct kexec_info *info, char *mod_cmdline)
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+{
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+ unsigned long elfcorehdr;
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+ unsigned long bufsz;
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+ void *buf;
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+ int err;
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+
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+ /*
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+ * First fetch all the memory (RAM) ranges that we are going to pass to
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+ * the crashdump kernel during panic.
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+ */
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+ err = crash_get_memory_ranges();
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+ if (err)
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+ return err;
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+
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+ /*
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+ * Now that we have memory regions sorted, we can use first memory
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+ * region as PHYS_OFFSET.
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+ */
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+ phys_offset = usablemem_rgns.ranges->start;
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+ dbgprintf("phys_offset: %#lx\n", phys_offset);
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+
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+ err = crash_create_elf32_headers(info, &elf_info,
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+ usablemem_rgns.ranges,
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+ usablemem_rgns.size, &buf, &bufsz,
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+ ELF_CORE_HEADER_ALIGN);
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+ if (err)
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+ return err;
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+
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+ /*
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+ * We allocate ELF core header from the end of the memory area reserved
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+ * for the crashkernel. We align the header to SECTION_SIZE (which is
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+ * 1MB) so that available memory passed in kernel command line will be
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+ * aligned to 1MB. This is because kernel create_mapping() wants memory
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+ * regions to be aligned to SECTION_SIZE.
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+ */
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+ elfcorehdr = add_buffer_phys_virt(info, buf, bufsz, bufsz, 1 << 20,
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+ crash_reserved_mem.start,
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+ crash_reserved_mem.end, -1, 0);
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+
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+ dbgprintf("elfcorehdr: %#lx\n", elfcorehdr);
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+ cmdline_add_elfcorehdr(mod_cmdline, elfcorehdr);
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+
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+ /*
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+ * Add 'mem=size' parameter to dump capture kernel command line. This
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+ * prevents the dump capture kernel from using any other memory regions
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+ * which belong to the primary kernel.
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+ */
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+ cmdline_add_mem(mod_cmdline, elfcorehdr - crash_reserved_mem.start);
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+
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+ dump_memory_ranges();
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+ dbgprintf("kernel command line: \"%s\"\n", mod_cmdline);
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+
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+ return 0;
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+}
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+
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+#endif
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+
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Index: kexec-tools-2.0.10/kexec/arch/arm64/include/arch/options.h
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===================================================================
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--- /dev/null
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+++ kexec-tools-2.0.10/kexec/arch/arm64/include/arch/options.h
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@@ -0,0 +1,26 @@
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+#ifndef KEXEC_ARCH_ARM64_OPTIONS_H
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+#define KEXEC_ARCH_ARM64_OPTIONS_H
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+
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+//#define OPT_ARCH_MAX ((OPT_MAX)+0)
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+
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+#define OPT_APPEND ((OPT_MAX)+0)
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+#define OPT_RAMDISK ((OPT_MAX)+1)
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+#define OPT_DTB ((OPT_MAX)+2)
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+
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+#define OPT_ARCH_MAX ((OPT_MAX)+3)
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+
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+
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+#define KEXEC_ARCH_OPTIONS \
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+ KEXEC_OPTIONS \
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+ { "append", 1, NULL, OPT_APPEND }, \
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+ { "command-line", 1, NULL, OPT_APPEND }, \
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+ { "dtb", 1, NULL, OPT_DTB }, \
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+ { "initrd", 1, NULL, OPT_RAMDISK }, \
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+ { "ramdisk", 1, NULL, OPT_RAMDISK }, \
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+
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+#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR /* Only accept long arch options. */
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+
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+#define KEXEC_ALL_OPTIONS KEXEC_ARCH_OPTIONS
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+#define KEXEC_ALL_OPT_STR KEXEC_ARCH_OPT_STR
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+
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+#endif /* KEXEC_ARCH_ARM64_OPTIONS_H */
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Index: kexec-tools-2.0.10/kexec/arch/arm64/kexec-arm64.c
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===================================================================
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--- /dev/null
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+++ kexec-tools-2.0.10/kexec/arch/arm64/kexec-arm64.c
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@@ -0,0 +1,177 @@
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+/*
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+ * ARM64 kexec support.
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+ */
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+
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+#define _GNU_SOURCE
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+
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+#include <errno.h>
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+#include <stddef.h>
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+
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+//#include <linux/kexec.h>
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+
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+#include "../../kexec.h"
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+#include "../../kexec-syscall.h"
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+#include "kexec-arm64.h"
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+
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+
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+void arch_usage(void)
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+{
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+ fprintf(stderr, "%s:%d: ->\n", __func__, __LINE__);
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+
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+ printf(
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+" --append=STRING Set the kernel command line to STRING.\n"
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+" --command-line=STRING Set the kernel command line to STRING.\n"
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+" --dtb=FILE Use FILE as the device tree blob.\n"
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+" --initrd=FILE Use FILE as the kernel initial ramdisk.\n"
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+" --ramdisk=FILE Use FILE as the kernel initial ramdisk.\n");
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+
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+ fprintf(stderr, "%s:%d: <-\n", __func__, __LINE__);
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+}
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+
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+int arch_process_options(int UNUSED(argc), char **UNUSED(argv))
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+{
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+ fprintf(stderr, "%s:%d: do\n", __func__, __LINE__);
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+ return 0;
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+}
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+
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+const struct arch_map_entry arches[] = {
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+ { "aarch64", KEXEC_ARCH_ARM64 },
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+ { NULL, 0 },
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+};
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+
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+void arch_update_purgatory(struct kexec_info *UNUSED(info))
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+{
|
|
+ fprintf(stderr, "%s:%d: do\n", __func__, __LINE__);
|
|
+}
|
|
+
|
|
+unsigned long virt_to_phys(unsigned long addr)
|
|
+{
|
|
+ fprintf(stderr, "%s:%d: %016lx -> %016lx\n", __func__, __LINE__, addr,
|
|
+ addr + 0x080000000UL);
|
|
+ return addr + 0x080000000UL;
|
|
+}
|
|
+
|
|
+void add_segment(struct kexec_info *info, const void *buf, size_t bufsz,
|
|
+ unsigned long base, size_t memsz)
|
|
+{
|
|
+ fprintf(stderr, "%s:%d: ->\n", __func__, __LINE__);
|
|
+ add_segment_phys_virt(info, buf, bufsz, base, memsz, 1);
|
|
+ fprintf(stderr, "%s:%d: <-\n", __func__, __LINE__);
|
|
+}
|
|
+
|
|
+static int get_memory_ranges_1(struct memory_range **range, int *ranges,
|
|
+ unsigned long kexec_flags)
|
|
+{
|
|
+ static struct memory_range memory_range[KEXEC_SEGMENT_MAX];
|
|
+ const char *iomem;
|
|
+ int range_count = 0;
|
|
+ char line[MAX_LINE];
|
|
+ FILE *fp;
|
|
+
|
|
+ iomem = proc_iomem();
|
|
+ fp = fopen(iomem, "r");
|
|
+
|
|
+ if (!fp) {
|
|
+ fprintf(stderr, "Cannot open %s: %s\n",
|
|
+ iomem, strerror(errno));
|
|
+ return -1;
|
|
+ }
|
|
+
|
|
+ dbgprintf("memory ranges:\n");
|
|
+
|
|
+ while(fgets(line, sizeof(line), fp) != 0) {
|
|
+ struct memory_range r;
|
|
+ char *str;
|
|
+ int consumed;
|
|
+
|
|
+ if (range_count >= KEXEC_SEGMENT_MAX)
|
|
+ break;
|
|
+
|
|
+ if (sscanf(line, "%Lx-%Lx : %n", &r.start, &r.end, &consumed)
|
|
+ != 2)
|
|
+ continue;
|
|
+
|
|
+ str = line + consumed;
|
|
+ r.end++;
|
|
+
|
|
+ if (memcmp(str, "System RAM\n", 11)) {
|
|
+ dbgprintf(" Skip: %016Lx - %016Lx : %s", r.start, r.end,
|
|
+ str);
|
|
+ continue;
|
|
+ }
|
|
+
|
|
+ r.type = RANGE_RAM;
|
|
+ memory_range[range_count] = r;
|
|
+ range_count++;
|
|
+
|
|
+ dbgprintf(" Add: %016Lx - %016Lx : %s", r.start, r.end, str);
|
|
+ }
|
|
+
|
|
+ fclose(fp);
|
|
+ *range = memory_range;
|
|
+ *ranges = range_count;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int get_memory_ranges_2(struct memory_range **range, int *ranges,
|
|
+ unsigned long UNUSED(kexec_flags))
|
|
+{
|
|
+ static struct memory_range memory_range[2];
|
|
+
|
|
+ memory_range[0].start = 0x080000000;
|
|
+ memory_range[0].end = 0x100000000;
|
|
+ memory_range[0].type = RANGE_RAM;
|
|
+
|
|
+ memory_range[1].start = 0x900000000;
|
|
+ memory_range[1].end = 0x880000000;
|
|
+ memory_range[1].type = RANGE_RAM;
|
|
+
|
|
+ *range = memory_range;
|
|
+ *ranges = sizeof(memory_range) / sizeof(memory_range[0]);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+int get_memory_ranges(struct memory_range **range, int *ranges,
|
|
+ unsigned long kexec_flags)
|
|
+{
|
|
+ /* FIXME: Should get this info from device tree. */
|
|
+
|
|
+ return get_memory_ranges_1(range, ranges, kexec_flags);
|
|
+}
|
|
+
|
|
+struct file_type file_type[] = {
|
|
+ { "elf-arm64", elf_arm64_probe, elf_arm64_load, elf_arm64_usage },
|
|
+};
|
|
+
|
|
+int file_types = sizeof(file_type) / sizeof(file_type[0]);
|
|
+
|
|
+int arch_compat_trampoline(struct kexec_info *info)
|
|
+{
|
|
+ fprintf(stderr, "%s:%d: do\n", __func__, __LINE__);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+void arch_reuse_initrd(void)
|
|
+{
|
|
+}
|
|
+
|
|
+int machine_verify_elf_rel(struct mem_ehdr *ehdr)
|
|
+{
|
|
+ (void)ehdr;
|
|
+
|
|
+ fprintf(stderr, "%s:%d: do\n", __func__, __LINE__);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type,
|
|
+ void *location, unsigned long address, unsigned long value)
|
|
+{
|
|
+ (void)ehdr;
|
|
+ (void)r_type;
|
|
+ (void)location;
|
|
+ (void)address;
|
|
+ (void)value;
|
|
+ fprintf(stderr, "%s:%d: do\n", __func__, __LINE__);
|
|
+}
|
|
Index: kexec-tools-2.0.10/kexec/arch/arm64/kexec-arm64.h
|
|
===================================================================
|
|
--- /dev/null
|
|
+++ kexec-tools-2.0.10/kexec/arch/arm64/kexec-arm64.h
|
|
@@ -0,0 +1,20 @@
|
|
+/*
|
|
+ * ARM64 kexec support.
|
|
+ */
|
|
+
|
|
+#if !defined(KEXEC_ARM64_H)
|
|
+#define KEXEC_ARM64_H
|
|
+
|
|
+/* #include <linux/kexec.h> FIXME: this is broken */
|
|
+#include <sys/types.h>
|
|
+
|
|
+#include "../../kexec.h"
|
|
+
|
|
+#define KEXEC_SEGMENT_MAX 16 /* FIXME: this should come from <linux/kexec.h> */
|
|
+
|
|
+int elf_arm64_probe(const char *buf, off_t len);
|
|
+int elf_arm64_load(int argc, char **argv, const char *buf, off_t len,
|
|
+ struct kexec_info *info);
|
|
+void elf_arm64_usage(void);
|
|
+
|
|
+#endif
|
|
\ No newline at end of file
|
|
Index: kexec-tools-2.0.10/kexec/arch/arm64/kexec-elf-arm64.c
|
|
===================================================================
|
|
--- /dev/null
|
|
+++ kexec-tools-2.0.10/kexec/arch/arm64/kexec-elf-arm64.c
|
|
@@ -0,0 +1,114 @@
|
|
+/*
|
|
+ * ARM64 kexec support.
|
|
+ */
|
|
+
|
|
+#define _GNU_SOURCE
|
|
+
|
|
+#include <elf.h>
|
|
+#include <getopt.h>
|
|
+
|
|
+#include "../../kexec-syscall.h"
|
|
+
|
|
+#include "kexec-arm64.h"
|
|
+#include "arch/options.h"
|
|
+
|
|
+#if !defined(EM_AARCH64)
|
|
+# define EM_AARCH64 183
|
|
+#endif
|
|
+
|
|
+int elf_arm64_probe(const char *buf, off_t len)
|
|
+{
|
|
+ int result;
|
|
+ struct mem_ehdr ehdr;
|
|
+
|
|
+ fprintf(stderr, "%s:%d: ->\n", __func__, __LINE__);
|
|
+
|
|
+ result = build_elf_exec_info(buf, len, &ehdr, 0);
|
|
+
|
|
+ if (result < 0) {
|
|
+ dbgprintf("Not an ELF executable\n");
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ if (ehdr.e_machine != EM_AARCH64) {
|
|
+ dbgprintf("Not an AARCH64 executable\n");
|
|
+ result = -1;
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ result = 0;
|
|
+
|
|
+out:
|
|
+ free_elf_info(&ehdr);
|
|
+ fprintf(stderr, "%s:%d: <-\n", __func__, __LINE__);
|
|
+ return result;
|
|
+}
|
|
+
|
|
+int elf_arm64_load(int argc, char **argv, const char *buf, off_t len,
|
|
+ struct kexec_info *info)
|
|
+{
|
|
+ static const struct option options[] = {
|
|
+ KEXEC_ARCH_OPTIONS
|
|
+ { 0 }
|
|
+ };
|
|
+ static const char short_options[] = KEXEC_OPT_STR "";
|
|
+ const char *command_line = NULL;
|
|
+ unsigned int command_line_len = 0;
|
|
+ const char *ramdisk = NULL;
|
|
+ const char *dtb = NULL;
|
|
+ int opt;
|
|
+ struct mem_ehdr ehdr;
|
|
+ int result;
|
|
+
|
|
+ fprintf(stderr, "%s:%d: ->\n", __func__, __LINE__);
|
|
+
|
|
+ while ((opt = getopt_long(argc, argv, short_options, options, 0))
|
|
+ != -1) {
|
|
+ switch (opt) {
|
|
+ default:
|
|
+ if (opt < OPT_MAX) /* Ignore core options */
|
|
+ break;
|
|
+ case OPT_APPEND:
|
|
+ command_line = optarg;
|
|
+ command_line_len = strlen(command_line) + 1;
|
|
+ break;
|
|
+ case OPT_RAMDISK:
|
|
+ ramdisk = optarg;
|
|
+ break;
|
|
+ case OPT_DTB:
|
|
+ dtb = optarg;
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ fprintf(stderr, "%s:%d: command_line: %s\n", __func__, __LINE__, command_line);
|
|
+ fprintf(stderr, "%s:%d: ramdisk: %s\n", __func__, __LINE__, ramdisk);
|
|
+ fprintf(stderr, "%s:%d: dtb: %s\n", __func__, __LINE__, dtb);
|
|
+
|
|
+ if (info->kexec_flags & KEXEC_ON_CRASH) {
|
|
+ fprintf(stderr, "kexec: kdump not yet supported on arm64\n");
|
|
+ return -1;
|
|
+ }
|
|
+
|
|
+ result = build_elf_exec_info(buf, len, &ehdr, 0);
|
|
+
|
|
+ if (result < 0) {
|
|
+ free_elf_info(&ehdr);
|
|
+ fprintf(stderr, "%s:%d: free_elf_info failed\n", __func__,
|
|
+ __LINE__);
|
|
+ return result;
|
|
+ }
|
|
+
|
|
+ elf_exec_build_load(info, &ehdr, buf, len, 0);
|
|
+
|
|
+ info->entry = (void*)0x80080000UL; // FIXME
|
|
+
|
|
+ fprintf(stderr, "%s:%d: <-\n", __func__, __LINE__);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+void elf_arm64_usage(void)
|
|
+{
|
|
+ fprintf(stderr, "%s:%d: ->\n", __func__, __LINE__);
|
|
+ fprintf(stderr, "%s:%d: <-\n", __func__, __LINE__);
|
|
+}
|
|
Index: kexec-tools-2.0.10/kexec/kexec-syscall.h
|
|
===================================================================
|
|
--- kexec-tools-2.0.10.orig/kexec/kexec-syscall.h
|
|
+++ kexec-tools-2.0.10/kexec/kexec-syscall.h
|
|
@@ -39,8 +39,8 @@
|
|
#ifdef __s390__
|
|
#define __NR_kexec_load 277
|
|
#endif
|
|
-#ifdef __arm__
|
|
-#define __NR_kexec_load __NR_SYSCALL_BASE + 347
|
|
+#if defined(__arm__) || defined(__arm64__)
|
|
+#define __NR_kexec_load __NR_SYSCALL_BASE + 347
|
|
#endif
|
|
#if defined(__mips__)
|
|
#define __NR_kexec_load 4311
|
|
@@ -108,6 +108,8 @@ static inline long kexec_file_load(int k
|
|
#define KEXEC_ARCH_PPC64 (21 << 16)
|
|
#define KEXEC_ARCH_IA_64 (50 << 16)
|
|
#define KEXEC_ARCH_ARM (40 << 16)
|
|
+#define KEXEC_ARCH_ARM64 (183 << 16)
|
|
+/* #define KEXEC_ARCH_AARCH64 (183 << 16) */
|
|
#define KEXEC_ARCH_S390 (22 << 16)
|
|
#define KEXEC_ARCH_SH (42 << 16)
|
|
#define KEXEC_ARCH_MIPS_LE (10 << 16)
|
|
@@ -153,5 +155,8 @@ static inline long kexec_file_load(int k
|
|
#ifdef __m68k__
|
|
#define KEXEC_ARCH_NATIVE KEXEC_ARCH_68K
|
|
#endif
|
|
+#if defined(__arm64__)
|
|
+#define KEXEC_ARCH_NATIVE KEXEC_ARCH_ARM64
|
|
+#endif
|
|
|
|
#endif /* KEXEC_SYSCALL_H */
|
|
Index: kexec-tools-2.0.10/kexec/kexec.c
|
|
===================================================================
|
|
--- kexec-tools-2.0.10.orig/kexec/kexec.c
|
|
+++ kexec-tools-2.0.10/kexec/kexec.c
|
|
@@ -664,6 +664,8 @@ static int my_load(const char *type, int
|
|
memset(&info, 0, sizeof(info));
|
|
info.kexec_flags = kexec_flags;
|
|
|
|
+ fprintf(stderr, "%s:%d: do\n", __func__, __LINE__);
|
|
+
|
|
result = 0;
|
|
if (argc - fileind <= 0) {
|
|
fprintf(stderr, "No kernel specified\n");
|
|
Index: kexec-tools-2.0.10/purgatory/arch/arm64/Makefile
|
|
===================================================================
|
|
--- /dev/null
|
|
+++ kexec-tools-2.0.10/purgatory/arch/arm64/Makefile
|
|
@@ -0,0 +1,7 @@
|
|
+#
|
|
+# Purgatory arm64
|
|
+#
|
|
+
|
|
+arm64_PURGATORY_SRCS =
|
|
+
|
|
+dist += purgatory/arch/arm64/Makefile $(arm64_PURGATORY_SRCS)
|