linux-kernel - Re: [PATCH v2] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel

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Date:   Wed, 3 Apr 2019 18:14:29 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Dave Young <dyoung@...hat.com>
Cc:     "bhe@...hat.com" <bhe@...hat.com>,
        Chao Fan <fanc.fnst@...fujitsu.com>,
        Junichi Nomura <j-nomura@...jp.nec.com>,
        "kasong@...hat.com" <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 v2] x86/boot: Use efi_setup_data for searching RSDP on
 kexec-ed kernel

On Wed, Apr 03, 2019 at 04:26:34PM +0800, Dave Young wrote:
> Personally I would like to have a cmdline to bypass the early acpi code
> because early code is hard to debug, if we have something weird happens
> we can try to gate out these code, and then get some idea..

No, this early crap better work on all machines by default.

Also, Chao, are you telling me that you've only tested in a VM? Or
have you actually tested your code on an actual machine with memory
hotremove?

-- 
Regards/Gruss,
    Boris.

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