linux-kernel - Re: EFI and multiboot2 devlopment work for Xen

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Message-ID: <52669C2C.90509@gmail.com>
Date:	Tue, 22 Oct 2013 17:39:24 +0200
From:	Vladimir 'φ-coder/phcoder' Serbinenko 
	<phcoder@...il.com>
To:	The development of GNU GRUB <grub-devel@....org>
CC:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Ian Campbell <ian.campbell@...rix.com>, keir@....org,
	david.woodhouse@...el.com, stefano.stabellini@...citrix.com,
	Daniel Kiper <daniel.kiper@...cle.com>,
	linux-kernel@...r.kernel.org, xen-devel@...ts.xen.org,
	Jan Beulich <JBeulich@...e.com>, ross.philipson@...rix.com,
	boris.ostrovsky@...cle.com, richard.l.maliszewski@...el.com
Subject: Re: EFI and multiboot2 devlopment work for Xen

On 22.10.2013 16:51, Konrad Rzeszutek Wilk wrote:
> If you use 'linux' module, it will call ExitBootService.
> If you use 'multiboot' module, it will call ExitBootService too.
> 
> So if you don't want to the module to call 'grub_efi_finish_boot_services'
> you need to use 'linuxefi' :-)
That's a very limited logic. Commands can be modified and protocols can
be extended.
There was only one e-mail explaining the needs and I answered with
proposing possible solutions yet the 2 e-mails in question were
completely ignored.
What's the need behind not calling ExitBootService? This is a point
which was never really explained to me. EFI specification specifically
tells to call ExitBootService.


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