Hi, Ruoyao On 09/22/2022 06:00 PM, Xi Ruoyao wrote:
On Thu, 2022-09-15 at 10:53 +0800, Youling Tang wrote:+int machine_kexec_prepare(struct kimage *kimage) +{ + int i; + void *dtb = (void *)KEXEC_BLOB_ADDR; + + kexec_image_info(kimage); + + /* Find the Flattened Device Tree */ + for (i = 0; i < kimage->nr_segments; i++) { + if (!fdt_check_header(kimage->segment[i].buf)) {Hi Youling, When I build Huacai's tree (https://github.com/loongson/linux/commits/loongarch-next), there is a strange error linking vmlinux: ld: arch/loongarch/kernel/machine_kexec.o: in function `machine_kexec_prepare': /home/xry111/git-repos/linux/arch/loongarch/kernel/machine_kexec.c:70: undefined reference to `fdt_check_header' Not sure why...
This is because of the problem after efistub removes the fdt modification, I will reimplement kexec/kdump. This build error can be avoided by turning off CONFIG_KEXEC temporarily, tomorrow I will submit a new kexec/kdump implementation. Thanks, Youling.
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