linux-kernel - Re: [PATCH 2/2] acpi, apei: use appropriate pgprot

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Date:	Thu, 13 Aug 2015 10:19:17 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Matt Fleming <matt@...eblueprint.co.uk>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Jonathan (Zhixiong) Zhang" <zjzhang@...eaurora.org>,
	linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
	Matt Fleming <matt.fleming@...el.com>,
	Borislav Petkov <bp@...e.de>
Subject: Re: [PATCH 2/2] acpi, apei: use appropriate pgprot_t to map GHES
 memory


* Matt Fleming <matt@...eblueprint.co.uk> wrote:

> From: "Jonathan (Zhixiong) Zhang" <zjzhang@...eaurora.org>
> 
> With ACPI APEI firmware first handling, generic hardware error
> record is updated by firmware in GHES memory region. On an arm64
> platform, firmware updates GHES memory region with uncached
> access attribute, and then Linux reads stale data from cache.

So this paragraph does not parse for me ...

If it tries to explain a bug it falls very short of doing a proper job of that.

Thanks,

	Ingo
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