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Re: [PATCH v1 1/2] xen: introduce common macros for per-CPU sections defintion
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, oleksii.kurochko@xxxxxxxxx
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 23 Sep 2024 13:55:48 +0200
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 23 Sep 2024 11:55:43 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 23.09.2024 13:53, Andrew Cooper wrote:
> On 23/09/2024 12:48 pm, oleksii.kurochko@xxxxxxxxx wrote:
>> On Mon, 2024-09-23 at 12:56 +0200, Jan Beulich wrote:
>>> On 19.09.2024 17:59, Oleksii Kurochko wrote:
>>>> --- a/xen/arch/x86/xen.lds.S
>>>> +++ b/xen/arch/x86/xen.lds.S
>>>> @@ -321,14 +321,7 @@ SECTIONS
>>>> DECL_SECTION(.bss) {
>>>> __bss_start = .;
>>>> *(.bss.page_aligned*)
>>>> - . = ALIGN(PAGE_SIZE);
>>>> - __per_cpu_start = .;
>>>> - *(.bss.percpu.page_aligned)
>>>> - *(.bss.percpu)
>>>> - . = ALIGN(SMP_CACHE_BYTES);
>>>> - *(.bss.percpu.read_mostly)
>>>> - . = ALIGN(SMP_CACHE_BYTES);
>>>> - __per_cpu_data_end = .;
>>>> + PERCPU_SECTION
>>>> *(.bss .bss.*)
>>>> . = ALIGN(POINTER_ALIGN);
>>>> __bss_end = .;
>>> Like the _SEC in the other patch I question _SECTION here, albeit for
>>> a different
>>> reason: This is no separate output section, and it's more than one
>>> kind of input
>>> ones. Perhaps PERCPU_DATA? With that
>>> Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
>> Sure, I will drop _SECTION here too. Thanks.
>
> Can we call it PERCPU_BSS? Just to highlight the fact that it really is
> BSS, and not initialised DATA.
Fine with me.
Jan
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