diff options
| author | Youling Tang <tangyouling@loongson.cn> | 2022-09-28 10:28:23 +0800 |
|---|---|---|
| committer | Simon Horman <horms@kernel.org> | 2022-10-10 13:34:54 +0200 |
| commit | 1c8bf2dc0127b06f97a7973488c7f8cf9a5f7c19 (patch) | |
| tree | ba9628df718ee3459e066274c59aa0a032790c42 /include | |
| parent | dceb1d8926e609ccf8f00e92001226888529283b (diff) | |
LoongArch: Add kexec/kdump support
Add the 64-bit processing support of the LoongArch architecture. For the time
being, the quick restart function(kexec) is supported. That is, the "kexec -l"
and "kexec -e" commands can be used normally.
At the same time, the crash dump function also supports, "kexec -p" operation
can be successfully performed, and the vmcore file can be generated.
I tested this on LoongArch 3A5000 machine and works as expected,
kexec:
$ sudo kexec -l /boot/vmlinux --reuse-cmdline
$ sudo kexec -e
kdump:
$ sudo kexec -p /boot/vmlinux-kdump --reuse-cmdline --append="nr_cpus=1"
# echo c > /proc/sysrq_trigger
Signed-off-by: Youling Tang <tangyouling@loongson.cn>
Signed-off-by: Simon Horman <horms@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/elf.h | 1 | ||||
| -rw-r--r-- | include/image.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/include/elf.h b/include/elf.h index b7677a2..1c8d2cc 100644 --- a/include/elf.h +++ b/include/elf.h @@ -259,6 +259,7 @@ typedef struct #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ #define EM_AARCH64 183 /* ARM AARCH64 */ +#define EM_LOONGARCH 258 /* Loongson Loongarch*/ #define EM_NUM 184 /* If it is necessary to assign new unofficial EM_* values, please diff --git a/include/image.h b/include/image.h index 8e9d81e..7a4bccf 100644 --- a/include/image.h +++ b/include/image.h @@ -86,6 +86,7 @@ #define IH_ARCH_ARC 23 /* Synopsys DesignWare ARC */ #define IH_ARCH_X86_64 24 /* AMD x86_64, Intel and Via */ #define IH_ARCH_XTENSA 25 /* Xtensa */ +#define IH_ARCH_LOONGARCH 26 /* LoongArch Loongson */ /* * Image Types |