Need help for arm64

[zhe.he@xxxxxxxxxxxxx (He Zhe)]

Hi,

I notice the function below in kexec/arch/arm64/crashdump-arm64.c. It looks it always causes "kexec -p" to return:
"Memory for crashkernel is not reserved
Please reserve memory by passing"crashkernel=X at Y" parameter to kernel
Then try to loading kdump kernel"

int is_crashkernel_mem_reserved(void)                                           
{                                                                               
        return 0;                                                               
}

Do we have plan to implement this?
Do we have workaround for arm64?

Thanks,
Zhe