From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
To: Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
"H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Cc: "Jonathan (Zhixiong) Zhang"
<zjzhang-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Matt Fleming
<matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Ard Biesheuvel
<ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH 7/8] arm64: apei: implement arch_apei_get_mem_attributes()
Date: Fri, 7 Aug 2015 10:50:09 +0100 [thread overview]
Message-ID: <20150807095009.GC2625@codeblueprint.co.uk> (raw)
In-Reply-To: <1438936621-5215-7-git-send-email-matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
On Fri, 07 Aug, at 09:37:00AM, Matt Fleming wrote:
> From: "Jonathan (Zhixiong) Zhang" <zjzhang-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
>
> Table 8 of UEFI 2.5 section 2.3.6.1 defines mappings from EFI
> memory types to MAIR attribute encodings for arm64.
>
> If the physical address has memory attributes defined by EFI
> memmap as EFI_MEMORY_[UC|WC|WT], return approprate page protection
> type according to the UEFI spec. Otherwise, return PAGE_KERNEL.
>
> Reviewed-by: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>
> Acked-by: Hanjun Guo <hanjun.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> Signed-off-by: Jonathan (Zhixiong) Zhang <zjzhang-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
> Signed-off-by: Matt Fleming <matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> ---
> arch/arm64/include/asm/acpi.h | 27 +++++++++++++++++++++++++++
> 1 file changed, 27 insertions(+)
>
Ard Biesheuvel has brought up a concern with this patch and it's
currently under discussion here,
https://lkml.kernel.org/r/CAKv+Gu8+g3dTaNzXjSD=5GxproaHM+Eu1hLmRWp7cVrQimzbHQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org
--
Matt Fleming, Intel Open Source Technology Center
next prev parent reply other threads:[~2015-08-07 9:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-06 20:32 [GIT PULL] EFI changes for v4.3 Matt Fleming
[not found] ` <1438936621-5215-7-git-send-email-matt@codeblueprint.co.uk>
[not found] ` <1438936621-5215-7-git-send-email-matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2015-08-07 9:50 ` Matt Fleming [this message]
2015-08-08 8:39 ` [PATCH 7/8] arm64: apei: implement arch_apei_get_mem_attributes() Ingo Molnar
[not found] ` <1438936621-5215-4-git-send-email-matt@codeblueprint.co.uk>
[not found] ` <1438936621-5215-4-git-send-email-matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2015-08-07 17:43 ` [PATCH 4/8] efi: x86: rearrange efi_mem_attributes() Zhang, Jonathan Zhixiong
2015-08-07 18:46 ` Matt Fleming
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