* Re: [PATCH v2 1/2] kexec: __NR_kexec_file_load is set to undefined on LoongArch [not found] <1677899351-31098-1-git-send-email-tangyouling@loongson.cn> @ 2023-03-08 12:50 ` Simon Horman [not found] ` <1677899351-31098-2-git-send-email-tangyouling@loongson.cn> 1 sibling, 0 replies; 2+ messages in thread From: Simon Horman @ 2023-03-08 12:50 UTC (permalink / raw) To: Youling Tang; +Cc: kexec, Philipp Rudo 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. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec ^ permalink raw reply [flat|nested] 2+ messages in thread
[parent not found: <1677899351-31098-2-git-send-email-tangyouling@loongson.cn>]
* Re: [PATCH v2 2/2] LoongArch: kdump: Set up kernel image segment [not found] ` <1677899351-31098-2-git-send-email-tangyouling@loongson.cn> @ 2023-03-08 12:51 ` Simon Horman 0 siblings, 0 replies; 2+ messages in thread From: Simon Horman @ 2023-03-08 12:51 UTC (permalink / raw) To: Youling Tang; +Cc: kexec, Philipp Rudo 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. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec ^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <1677899351-31098-1-git-send-email-tangyouling@loongson.cn>
2023-03-08 12:50 ` [PATCH v2 1/2] kexec: __NR_kexec_file_load is set to undefined on LoongArch Simon Horman
[not found] ` <1677899351-31098-2-git-send-email-tangyouling@loongson.cn>
2023-03-08 12:51 ` [PATCH v2 2/2] LoongArch: kdump: Set up kernel image segment Simon Horman
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