Commit 62cda5e5 authored by Qiang Ma's avatar Qiang Ma Committed by Huacai Chen
Browse files

LoongArch: kexec: Print out debugging message if required 



When specifying '-d' for kexec_file_load interface, loaded locations of
kernel/initrd/cmdline etc can be printed out to help debug.

Commit eb7622d9 ("kexec_file, riscv: print out debugging message if
required") fixes the same issue on RISC-V.

So, remove kexec_image_info() because the content has been printed out
in generic code.

And on Loongson-3A5000, the printed messages look like below:

 kexec_file: kernel: 00000000d9aad283 kernel_size: 0x2e77f30
 kexec_file(EFI): No LoongArch PE image header.
 kexec_file: Loaded initrd at 0x80000000 bufsz=0x1637cd0 memsz=0x1638000
 kexec_file(ELF): Loaded kernel at 0x9c20000 bufsz=0x27f1800 memsz=0x2950000
 kexec_file: nr_segments = 2
 kexec_file: segment[0]: buf=0x00000000cc3e6c33 bufsz=0x27f1800 mem=0x9c20000 memsz=0x2950000
 kexec_file: segment[1]: buf=0x00000000bb75a541 bufsz=0x1637cd0 mem=0x80000000 memsz=0x1638000
 kexec_file: kexec_file_load: type:0, start:0xb15d000 head:0x18db60002 flags:0x8

Signed-off-by: default avatarQiang Ma <maqianga@uniontech.com>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent df16b895

arch/loongarch/kernel/machine_kexec.c

+0 −22
Original line number Diff line number Diff line
@@ -39,34 +39,12 @@ static unsigned long systable_ptr; 
static unsigned long start_addr;

static unsigned long first_ind_entry;



static void kexec_image_info(const struct kimage *kimage)

{

	unsigned long i;



	pr_debug("kexec kimage info:\n");

	pr_debug("\ttype:        %d\n", kimage->type);

	pr_debug("\tstart:       %lx\n", kimage->start);

	pr_debug("\thead:        %lx\n", kimage->head);

	pr_debug("\tnr_segments: %lu\n", kimage->nr_segments);



	for (i = 0; i < kimage->nr_segments; i++) {

		pr_debug("\t    segment[%lu]: %016lx - %016lx", i,

			kimage->segment[i].mem,

			kimage->segment[i].mem + kimage->segment[i].memsz);

		pr_debug("\t\t0x%lx bytes, %lu pages\n",

			(unsigned long)kimage->segment[i].memsz,

			(unsigned long)kimage->segment[i].memsz /  PAGE_SIZE);

	}

}



int machine_kexec_prepare(struct kimage *kimage)

{

	int i;

	char *bootloader = "kexec";

	void *cmdline_ptr = (void *)KEXEC_CMDLINE_ADDR;



	kexec_image_info(kimage);



	kimage->arch.efi_boot = fw_arg0;

	kimage->arch.systable_ptr = fw_arg2;