linux-kernel - Re: [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel

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Message-ID: <20190417103140.GB388@localhost.localdomain>
Date:   Wed, 17 Apr 2019 18:31:40 +0800
From:   Chao Fan <fanc.fnst@...fujitsu.com>
To:     Borislav Petkov <bp@...en8.de>
CC:     Dave Young <dyoung@...hat.com>,
        Junichi Nomura <j-nomura@...jp.nec.com>,
        Baoquan He <bhe@...hat.com>, Kairui Song <kasong@...hat.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "kexec@...ts.infradead.org" <kexec@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on
 kexec-ed kernel

On Wed, Apr 17, 2019 at 10:54:34AM +0200, Borislav Petkov wrote:
>On Wed, Apr 17, 2019 at 03:02:50PM +0800, Dave Young wrote:
>> How about move it after console_init,
>
>Sounds ok to me. That's still before KASLR gets setup and should work
>for Chao's movable regions too.

Yes, when debugging, I also put it after console_init().

Thanks,
Chao Fan

>
>> and at the same time skip efi_get_rsdp_addr in case kexec?
>
>If kexec_get_rsdp_addr() gets a correct address, efi_get_rsdp_addr()
>will be skipped.
>
>-- 
>Regards/Gruss,
>    Boris.
>
>Good mailing practices for 400: avoid top-posting and trim the reply.
>
>