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Re: [PATCH v1 1/2] xen: introduce common macros for per-CPU sections defintion
- To: oleksii.kurochko@xxxxxxxxx, Jan Beulich <jbeulich@xxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Mon, 23 Sep 2024 12:53:50 +0100
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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 11:54:00 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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.
~Andrew
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