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Re: [PATCH] x86/boot: Avoid usage of global in reloc.c


  • To: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Mon, 9 Sep 2024 12:18:14 +0200
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  • Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
  • Delivery-date: Mon, 09 Sep 2024 10:18:17 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 09.09.2024 12:04, Frediano Ziglio wrote:
> --- a/xen/arch/x86/boot/reloc.c
> +++ b/xen/arch/x86/boot/reloc.c
> @@ -72,11 +72,16 @@ struct vesa_mode_info {
>  #define get_mb2_data(tag, type, member)   (((const multiboot2_tag_##type##_t 
> *)(tag))->member)
>  #define get_mb2_string(tag, type, member) ((uint32_t)get_mb2_data(tag, type, 
> member))
>  
> -static uint32_t alloc;
> +typedef struct memctx {
> +    /* Simple bump allocator.  It starts from the base of the trampoline and
> +     * allocates downwards.
> +     */

Nit: Comment style.

As to some formal things: This is v2 aiui, yet not marked as such. There's
further "x86/boot: Optimise 32 bit C source code" in reply to this, when
both aren't marked as a series. There's a similar odd relationship between
two further patches you sent a few minutes later.

Jan



 


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