linux-kernel - Re: [PATCH v3 0/5] ARM Error Source Table V2 Support

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Message-ID: <20250219203039.GQZ7Y_b2xE6GZo5pQv@fat_crate.local>
Date: Wed, 19 Feb 2025 21:30:39 +0100
From: Borislav Petkov <bp@...en8.de>
To: Ruidong Tian <tianruidong@...ux.alibaba.com>
Cc: catalin.marinas@....com, will@...nel.org, lpieralisi@...nel.org,
	guohanjun@...wei.com, sudeep.holla@....com,
	xueshuai@...ux.alibaba.com, baolin.wang@...ux.alibaba.com,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, rafael@...nel.org,
	lenb@...nel.org, tony.luck@...el.com, yazen.ghannam@....com
Subject: Re: [PATCH v3 0/5] ARM Error Source Table V2 Support

On Wed, Jan 15, 2025 at 04:42:23PM +0800, Ruidong Tian wrote:
> AEST provides a mechanism for hardware to directly notify Kernel to
> handle RAS errors through interrupts, which is also known as Kernel-first
> mode.

Kernel first? Srsly? No? Oh.

https://www.youtube.com/watch?v=pFjSDM6D500

So what, folks realized finally that firmware-first is simply a stinking pile,
after a decade or so.

> AEST's Advantage
> ========================
> 
> 1. AEST uses EL1 interrupts to report CE/DE, making it more lightweight
>    than GHES (the Firmware First solution on Arm).

ROTFL.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette