Re: [PATCH v2 1/2] kexec: __NR_kexec_file_load is set to undefined on LoongArch

Re: [PATCH v2 1/2] kexec: __NR_kexec_file_load is set to undefined on LoongArch

[Simon Horman]

On Sat, Mar 04, 2023 at 11:09:10AM +0800, Youling Tang wrote:
> The initial reason is that after the merger of 29fe5067ed07 ("kexec: make
> -a the default"), kexec cannot be used on LoongArch architectures. We need
> to add "-c" for normal use. The current kexec_file_load system call is not
> implemented in architectures such as LoongArch, so it needs to pass kexec_load.
> So we need to set __NR_kexec_file_load to undefined in unsupported architectures.
> This will return EFALLBACK via is_kexec_file_load_implemented, and then via
> kexec_load.
> 
> Signed-off-by: Youling Tang <tangyouling@loongson.cn>

Thanks, applied.

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Re: [PATCH v2 2/2] LoongArch: kdump: Set up kernel image segment

[Simon Horman]

On Sat, Mar 04, 2023 at 11:09:11AM +0800, Youling Tang wrote:
> On LoongArch, we can use the same kernel image as 1st kernel when
> 3f89765d622 ("LoongArch: kdump: Add single kernel image implementation")
> is merged, but we have to modify the entry point as well as segments
> addresses in the kernel elf header (or PE format vmlinux.efi) in order
> to load them into correct places.
> 
> Signed-off-by: Youling Tang <tangyouling@loongson.cn>

Thanks, applied.

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