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Re: [PATCH v1 3/3] xen/riscv: register Xen's load address as a boot module


  • To: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Tue, 1 Oct 2024 17:49:30 +0200
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  • Cc: Alistair Francis <alistair.francis@xxxxxxx>, Bob Eshleman <bobbyeshleman@xxxxxxxxx>, Connor Davis <connojdavis@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 01 Oct 2024 15:49:36 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 30.09.2024 17:08, Oleksii Kurochko wrote:
> @@ -26,6 +27,8 @@ unsigned char __initdata cpu0_boot_stack[STACK_SIZE]
>  void __init noreturn start_xen(unsigned long bootcpu_id,
>                                 paddr_t dtb_addr)
>  {
> +    struct bootmodule *xen_bootmodule;

With just the uses below this can be pointer-to-const. Question of course
is whether you already know of further uses.

> @@ -44,6 +47,13 @@ void __init noreturn start_xen(unsigned long bootcpu_id,
>                "Please check your bootloader.\n",
>                dtb_addr, BOOT_FDT_VIRT_SIZE);
>  
> +    /* Register Xen's load address as a boot module. */
> +    xen_bootmodule = add_boot_module(BOOTMOD_XEN,
> +                                     virt_to_maddr(_start),
> +                                     (paddr_t)(_end - _start), false);

There's no real need for the cast, is there? Plus if anything, it would be
more to size_t than to paddr_t.

Jan



 


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