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In LoongArch, when using the --reuse-cmdline option to reuse the current
command line, it may lead to redundancy (like kexec, initrd command line
arguments). In order to avoid the possible impact of initrd removal on other
architectures, remove_parameter will be called in a specific architecture
for processing.
Signed-off-by: Youling Tang <tangyouling@loongson.cn>
Signed-off-by: Simon Horman <horms@kernel.org>
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The LoongArch kernel will mainly use the vmlinux.efi image in PE format,
so add it support.
I tested this on LoongArch 3A5000 machine and works as expected,
kexec:
$ sudo kexec -l /boot/vmlinux.efi --reuse-cmdline
$ sudo kexec -e
kdump:
$ sudo kexec -p /boot/vmlinux-kdump.efi --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>
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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>
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