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MIPS: kexec: add debug info about the new kexec'ed image 

Print details of the new kexec image loaded.

Based on the original code from
commit 221f2c770e ("arm64/kexec: Add pr_debug output")

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14614/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Marcin Nowakowski 2016-11-23 14:43:51 +01:00 committed by Ralf Baechle
parent a8f108d70c
commit 856b0f591e
1 changed files with 22 additions and 0 deletions
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22
arch/mips/kernel/machine_kexec.c
View File

@ -28,9 +28,31 @@ atomic_t kexec_ready_to_reboot = ATOMIC_INIT(0);
void (*_crash_smp_send_stop)(void) = NULL;
#endif
static void kexec_image_info(const struct kimage *kimage)
{
unsigned long i;
pr_debug("kexec kimage info:\n");
pr_debug(" type: %d\n", kimage->type);
pr_debug(" start: %lx\n", kimage->start);
pr_debug(" head: %lx\n", kimage->head);
pr_debug(" nr_segments: %lu\n", kimage->nr_segments);
for (i = 0; i < kimage->nr_segments; i++) {
pr_debug(" segment[%lu]: %016lx - %016lx, 0x%lx bytes, %lu pages\n",
i,
kimage->segment[i].mem,
kimage->segment[i].mem + kimage->segment[i].memsz,
(unsigned long)kimage->segment[i].memsz,
(unsigned long)kimage->segment[i].memsz / PAGE_SIZE);
}
}
int
machine_kexec_prepare(struct kimage *kimage)
{
kexec_image_info(kimage);
if (_machine_kexec_prepare)
return _machine_kexec_prepare(kimage);
return 0;