On Sat, Sep 01, 2018 at 01:11:15AM -0400, Wei Huang wrote:
> +.section .text
> +
> + .globl _start
> +
> +_start:
> + /* disable MMU to use phys mem address */
> + mrs x0, sctlr_el1
> + bic x0, x0, #(1<<0)
> + msr sctlr_el1, x0
> + isb
> +
> + /* traverse test memory region */
> + mov x0, #ARM_TEST_MEM_START
> + mov x1, #ARM_TEST_MEM_END
I don't think there's any reason to require the start and
end addresses to be hard coded. We should be able to get
the start address with
#define KERNEL_OFFSET 0x80000
adr x0, _start
add x0, x0, #(1024 * 1024 - KERNEL_OFFSET)
and the end address with
add x1, x0, #(99 * 1024 * 1024)
Thanks,
drew
