From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
To: Ard Biesheuvel <ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
sai.praneeth.prakhya-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org
Subject: Re: [PATCH 1/5] ARM: efi: apply strict permissons for UEFI Runtime Services regions
Date: Wed, 2 Mar 2016 11:49:01 +0000 [thread overview]
Message-ID: <20160302114901.GC2649@codeblueprint.co.uk> (raw)
In-Reply-To: <1456151158-25849-2-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
On Mon, 22 Feb, at 03:25:54PM, Ard Biesheuvel wrote:
> Recent UEFI versions expose permission attributes for runtime services
> memory regions, either in the UEFI memory map or in the separate memory
> attributes table. This allows the kernel to map these regions with
> stricter permissions, rather than the RWX permissions that are used by
> default. So wire this up in our mapping routine.
>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> ---
> arch/arm/include/asm/efi.h | 1 +
> arch/arm/kernel/efi.c | 41 ++++++++++++++++++++
> 2 files changed, 42 insertions(+)
Looks fine from an EFI perspective, but it would be nice for somebody
else with ARM knowledge to ACK it.
WARNING: multiple messages have this Message-ID (diff)
From: matt@codeblueprint.co.uk (Matt Fleming)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/5] ARM: efi: apply strict permissons for UEFI Runtime Services regions
Date: Wed, 2 Mar 2016 11:49:01 +0000 [thread overview]
Message-ID: <20160302114901.GC2649@codeblueprint.co.uk> (raw)
In-Reply-To: <1456151158-25849-2-git-send-email-ard.biesheuvel@linaro.org>
On Mon, 22 Feb, at 03:25:54PM, Ard Biesheuvel wrote:
> Recent UEFI versions expose permission attributes for runtime services
> memory regions, either in the UEFI memory map or in the separate memory
> attributes table. This allows the kernel to map these regions with
> stricter permissions, rather than the RWX permissions that are used by
> default. So wire this up in our mapping routine.
>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> ---
> arch/arm/include/asm/efi.h | 1 +
> arch/arm/kernel/efi.c | 41 ++++++++++++++++++++
> 2 files changed, 42 insertions(+)
Looks fine from an EFI perspective, but it would be nice for somebody
else with ARM knowledge to ACK it.
next prev parent reply other threads:[~2016-03-02 11:49 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-22 14:25 [PATCH 0/5] memory attribute table support Ard Biesheuvel
2016-02-22 14:25 ` Ard Biesheuvel
[not found] ` <1456151158-25849-1-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-02-22 14:25 ` [PATCH 1/5] ARM: efi: apply strict permissons for UEFI Runtime Services regions Ard Biesheuvel
2016-02-22 14:25 ` Ard Biesheuvel
[not found] ` <1456151158-25849-2-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-03-02 11:49 ` Matt Fleming [this message]
2016-03-02 11:49 ` Matt Fleming
[not found] ` <20160302114901.GC2649-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-03-02 13:07 ` Ard Biesheuvel
2016-03-02 13:07 ` Ard Biesheuvel
[not found] ` <CAKv+Gu81V9TjhjikmQd=4ahWeqry8U1w5Fa+BTcY+S=2xYJmrA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-02 13:14 ` Matt Fleming
2016-03-02 13:14 ` Matt Fleming
2016-02-22 14:25 ` [PATCH 2/5] arm64: " Ard Biesheuvel
2016-02-22 14:25 ` Ard Biesheuvel
[not found] ` <1456151158-25849-3-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-03-02 12:10 ` Matt Fleming
2016-03-02 12:10 ` Matt Fleming
[not found] ` <20160302121036.GD2649-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-03-02 13:09 ` Ard Biesheuvel
2016-03-02 13:09 ` Ard Biesheuvel
2016-02-22 14:25 ` [PATCH 3/5] efi: add support for the EFI_MEMORY_ATTRIBUTES_TABLE config table Ard Biesheuvel
2016-02-22 14:25 ` Ard Biesheuvel
[not found] ` <1456151158-25849-4-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-02-22 14:29 ` [PATCH 4/5] efi: implement generic support for the Memory Attributes table Ard Biesheuvel
2016-02-22 14:29 ` Ard Biesheuvel
[not found] ` <1456151355-25943-1-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-02-22 14:29 ` [PATCH 5/5] arm*: efi: take the Memory Attributes table into account Ard Biesheuvel
2016-02-22 14:29 ` Ard Biesheuvel
2016-03-02 13:10 ` [PATCH 4/5] efi: implement generic support for the Memory Attributes table Matt Fleming
2016-03-02 13:10 ` Matt Fleming
2016-03-02 12:22 ` [PATCH 3/5] efi: add support for the EFI_MEMORY_ATTRIBUTES_TABLE config table Matt Fleming
2016-03-02 12:22 ` Matt Fleming
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