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

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Message-ID: <20121206001819.GA30527@srcf.ucam.org>
Date:	Thu, 6 Dec 2012 00:18:19 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, linux-efi@...r.kernel.org,
	mfleming@...el.com, dwmw2@...radead.org,
	"H. Peter Anvin" <hpa@...or.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: Use PCI ROMs from EFI boot services

On Wed, Dec 05, 2012 at 04:15:56PM -0800, Yinghai Lu wrote:

> at the same time we should export setup_data into /sys, so kexec could
> append this pointer to command of
> second kernel, just like kexec append acpi_rsdp.
> That should address DavidW's concern.

Why should the kernel export data to userspace just so that that data 
can be passed back into the kernel?

-- 
Matthew Garrett | mjg59@...f.ucam.org
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