linux-kernel - Re: [PATCH 00/11] efi: Permanent runtime EFI memmap support

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Message-ID: <20160630143431.GA2818@dhcp-128-65.nay.redhat.com>
Date:	Thu, 30 Jun 2016 10:34:31 -0400
From:	Dave Young <dyoung@...hat.com>
To:	Matt Fleming <matt@...eblueprint.co.uk>
Cc:	Ard Biesheuvel <ard.biesheuvel@...aro.org>,
	linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
	Andy Lutomirski <luto@...capital.net>,
	Borislav Petkov <bp@...en8.de>,
	Josh Boyer <jwboyer@...oraproject.org>,
	Josh Triplett <josh@...htriplett.org>,
	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Leif Lindholm <leif.lindholm@...aro.org>,
	Mark Rutland <mark.rutland@....com>,
	Môshe van der Sterre <me@...he.nl>,
	Peter Jones <pjones@...hat.com>,
	Taku Izumi <izumi.taku@...fujitsu.com>,
	Tony Luck <tony.luck@...el.com>,
	Xishi Qiu <qiuxishi@...wei.com>
Subject: Re: [PATCH 00/11] efi: Permanent runtime EFI memmap support

Hi, Matt

On 06/23/16 at 12:34pm, Matt Fleming wrote:
> This series adds support for keeping the EFI memory map around at
> runtime for x86 (ARM and arm64 already have this support).
> 
> Additionally, drivers can now reserve EFI boot services regions such
> that they are not released back to the kernel during
> efi_free_boot_services().
> 
> With these two features it becomes possible to pass things like the
> EFI System Resource Table data structures across kexec reboot.
> 
> This series also includes a whole bunch of refactoring and cleanups to
> move code out of arch or driver-specific files into generic places.
> 
> I've given these patches some light testing, but it would be good if
> others could provide more given that this series touches so many
> different code paths.

Tested kexec/kdump and the bgrt reservation with kexec and kexec_file
system call. But due to a crypto issue I can not test signature
verification of kexec_file, but I think that is a separate problem.

For these parts:
Tested-by: Dave Young <dyoung@...hat.com>

Thanks
Dave