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authorAKASHI Takahiro <takahiro.akashi@linaro.org>2019-12-16 05:12:47 +0300
committerWill Deacon <will@kernel.org>2020-01-08 20:05:23 +0300
commit3751e728cef2908c15974a5ae44627fd41ef3362 (patch)
tree3c30004b8d4f48e3f9bd6f3c07f0de537b5fd437 /arch/arm64/kernel/kexec_image.c
parentc273a2bd8aa81b72e48736c3aa51f7ffeae39925 (diff)
downloadlinux-3751e728cef2908c15974a5ae44627fd41ef3362.tar.xz
arm64: kexec_file: add crash dump support
Enabling crash dump (kdump) includes * prepare contents of ELF header of a core dump file, /proc/vmcore, using crash_prepare_elf64_headers(), and * add two device tree properties, "linux,usable-memory-range" and "linux,elfcorehdr", which represent respectively a memory range to be used by crash dump kernel and the header's location Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Reviewed-by: James Morse <james.morse@arm.com> Tested-and-reviewed-by: Bhupesh Sharma <bhsharma@redhat.com> Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel/kexec_image.c')
-rw-r--r--arch/arm64/kernel/kexec_image.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm64/kernel/kexec_image.c b/arch/arm64/kernel/kexec_image.c
index 29a9428486a5..af9987c154ca 100644
--- a/arch/arm64/kernel/kexec_image.c
+++ b/arch/arm64/kernel/kexec_image.c
@@ -47,10 +47,6 @@ static void *image_load(struct kimage *image,
struct kexec_segment *kernel_segment;
int ret;
- /* We don't support crash kernels yet. */
- if (image->type == KEXEC_TYPE_CRASH)
- return ERR_PTR(-EOPNOTSUPP);
-
/*
* We require a kernel with an unambiguous Image header. Per
* Documentation/arm64/booting.rst, this is the case when image_size