linux-kernel - Re: Use PCI ROMs from EFI boot services

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Message-ID: <50BFED3C.1080601@zytor.com>
Date:	Wed, 05 Dec 2012 16:56:28 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-efi@...r.kernel.org, dwmw2@...radead.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: Use PCI ROMs from EFI boot services

On 12/05/2012 04:51 PM, Yinghai Lu wrote:
> 
> it moves boot_params from __initdata  to data.
> and just for using pointer to setup_data.
> 
> should add setup_data pointer instead. so will not waste (4096 - 8) bytes.
> 

That is not the only bit.  We already have covered how kexec could use
the whole structure, and really, how big a deal is a page of cache-cold
storage?

	-hpa


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