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Re: [PATCH v3 gnumach] smp: Rearrange IPI sending mechanism
From: |
Damien Zammit |
Subject: |
Re: [PATCH v3 gnumach] smp: Rearrange IPI sending mechanism |
Date: |
Fri, 23 Feb 2024 13:36:31 +0000 |
Hi Almu,
On 2/24/24 12:24 AM, Almudena Garcia wrote:
> I set the code as this way because it's the standard of Intel's guides.
>
> The guide explain that although most machines turn on the cpu with an unique
> SIPI, some machines could require a second SIPI. Even some older machines
> could need a INIT IPI before the SIPI.
>
> It's the reason because i wrote the code aa this way, following the advice on
> of Intel's guides.
This is not the code for INIT IPI or STARTUP IPI.
This is just for raising a fixed, no-shorthand, physical IPI to wake up a
different cpu.
Please read what I changed in detail.
If you have reason to believe de-asserting a fixed IPI is a good idea,
then we can keep the existing code.
Thanks,
Damien