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 for kexec@lists.infradead.org; Fri, 29 Mar 2019 09:37:32 +0000
From: Junichi Nomura <j-nomura@ce.jp.nec.com>
Subject: Re: [PATCH v2] x86/boot: Use EFI setup data if provided
Date: Fri, 29 Mar 2019 09:37:00 +0000
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To: Borislav Petkov <bp@alien8.de>, Chao Fan <fanc.fnst@cn.fujitsu.com>
Cc: "kasong@redhat.com" <kasong@redhat.com>, "bhe@redhat.com" <bhe@redhat.com>, "x86@kernel.org" <x86@kernel.org>, "kexec@lists.infradead.org" <kexec@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Dave Young <dyoung@redhat.com>

On 3/29/19 6:16 PM, Borislav Petkov wrote:
> On Fri, Mar 29, 2019 at 05:05:50PM +0800, Chao Fan wrote:
>> But in my code, I am not sure which version will be found firstly, so I
>> write this logical, if ACPI20 found, return directly, then consider ACPI 1.0.
> 
> Thanks.
> 
> Junichi, please add a shorter version of that as a comment to the code,
> above the function name so that it is clear why we're preferring the 2.0
> version.

Sure, I'll add this above __efi_get_rsdp_addr().

/*
 * Search EFI system tables for RSDP.  If both ACPI_20_TABLE_GUID and
 * ACPI_TABLE_GUID are found, take the former, which has more features.
 */

-- 
Jun'ichi Nomura, NEC Corporation / NEC Solution Innovators, Ltd.
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