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Date: Tue, 26 Mar 2019 14:57:14 +0100
From: Borislav Petkov <bp@alien8.de>
Subject: Re: [PATCH v2] x86/boot: Use EFI setup data if provided
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To: Junichi Nomura <j-nomura@ce.jp.nec.com>
Cc: "fanc.fnst@cn.fujitsu.com" <fanc.fnst@cn.fujitsu.com>, "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 Mon, Mar 25, 2019 at 11:10:01PM +0000, Junichi Nomura wrote:
> efi_get_rsdp_addr() and kexec_get_rsdp_addr() could be implemented
> like this (sorry about the pseudo code):

This doesn't look like what I suggested:

> So efi_get_rsdp_addr() needs to be refactored in such a way so that at
> least the loop towards the end gets carved out into a separate function
> - __efi_get_rsdp_addr() or so - which gets config_tables, nr_tables and
> size as arguments and finds the RSDP address in the kexec-ed kernel.

You need to carve out the loop at the end and make it into a separate
__efi_get_rsdp_addr() function which gets the physical or the virtual
address.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

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