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Date:   Mon, 14 Jan 2019 09:26:42 +0800
From:   Chao Fan <fanc.fnst@cn.fujitsu.com>
To:     Borislav Petkov <bp@alien8.de>
CC:     <linux-kernel@vger.kernel.org>, <x86@kernel.org>,
        <tglx@linutronix.de>, <mingo@redhat.com>, <hpa@zytor.com>,
        <keescook@chromium.org>, <bhe@redhat.com>, <msys.mizuma@gmail.com>,
        <indou.takao@jp.fujitsu.com>, <caoj.fnst@cn.fujitsu.com>
Subject: Re: [PATCH v15 3/6] x86/boot: Introduce efi_get_rsdp_addr() to find
 RSDP from EFI table
Message-ID: <20190114012641.GA30900@localhost.localdomain>
References: <20190107032243.25324-1-fanc.fnst@cn.fujitsu.com>
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 <20190110211523.GG17621@zn.tnic>
 <20190111012353.GD2216@localhost.localdomain>
 <20190111103225.GA4729@zn.tnic>
 <20190113094704.GC13263@localhost.localdomain>
 <20190113110544.GA7398@zn.tnic>
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On Sun, Jan 13, 2019 at 12:05:45PM +0100, Borislav Petkov wrote:
>On Sun, Jan 13, 2019 at 05:47:04PM +0800, Chao Fan wrote:
>> 'acpi_physical_address' could be define as u64 or u32.
>
>And when can acpi_physical_address be a u32?
>

According to the code, I saw:
#ifdef ACPI_ASL_COMPILER
#define ACPI_32BIT_PHYSICAL_ADDRESS
#endif

and then
#ifdef ACPI_32BIT_PHYSICAL_ADDRESS
typedef u32 acpi_physical_address;

As for ACPI_ASL_COMPILER, I saw iASL in documention, but can't find more
information in the code. If I miss something, please let me know.

Thanks,
Chao Fan

>-- 
>Regards/Gruss,
>    Boris.
>
>Good mailing practices for 400: avoid top-posting and trim the reply.
>
>