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Date: Tue, 27 Oct 2015 21:08:47 +0000
From: Matt Fleming <matt@codeblueprint.co.uk>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>,
        Ingo Molnar <mingo.kernel.org@gmail.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        kamezawa.hiroyu@jp.fujitsu.com,
        "linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>
Subject: Re: [PATCH v2] efi: Fix warning of int-to-pointer-cast on x86 32-bit
 builds
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On Tue, 27 Oct, at 11:33:55AM, Ard Biesheuvel wrote:
> 
> Does UEFI even allow that? Even if it can describe memory over 4 GB,
> it uses a flat mapping so allocations done by the stub (which
> retrieves the memory map) should never reside at addresses over 4 GB.

Right, exactly. We're good with phys_addr_t.

From mboxrd@z Thu Jan  1 00:00:00 1970
From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
Subject: Re: [PATCH v2] efi: Fix warning of int-to-pointer-cast on x86 32-bit
 builds
Date: Tue, 27 Oct 2015 21:08:47 +0000
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Cc: Taku Izumi <izumi.taku-+CUm20s59erQFUHtdCDX3A@public.gmane.org>, Ingo Molnar <mingo.kernel.org-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org, "linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
List-Id: linux-efi@vger.kernel.org

On Tue, 27 Oct, at 11:33:55AM, Ard Biesheuvel wrote:
> 
> Does UEFI even allow that? Even if it can describe memory over 4 GB,
> it uses a flat mapping so allocations done by the stub (which
> retrieves the memory map) should never reside at addresses over 4 GB.

Right, exactly. We're good with phys_addr_t.