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From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
To: Ard Biesheuvel <ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	"linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
	Russell King - ARM Linux
	<linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
	Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
	Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
	"x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org"
	<x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	Leif Lindholm
	<leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH 6/8] efi/arm*: libstub: wire up GOP handling into the ARM UEFI stub
Date: Thu, 10 Mar 2016 14:30:39 +0000	[thread overview]
Message-ID: <20160310143039.GF15775@codeblueprint.co.uk> (raw)
In-Reply-To: <CAKv+Gu8hTSbZVgGj6epquwf6kkSJV+imAFvNobowFVtB5AUe2Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On Thu, 10 Mar, at 03:36:24PM, Ard Biesheuvel wrote:
> 
> Thank you. I am perfectly happy exercising some more caution here,
> though, considering that our past experiences involving reshuffling
> stub code for x86 were not a huge success (and broke Linus's laptop,
> among others')
> 
> I was very careful not to introduce cross-object data symbol
> references (which were the culprit before), and I tested both i386 and
> x86_64 to the extent feasible to me, but we'd need to confirm that
> those things are still fully correct before queuing this.

I agree 100% with Ard. It's far too late in the development cycle to
be introducing cross-architecture changes, and in particular, changes
to the code driving the early boot console.

I haven't reviewed the patches yet, but this is all v4.7 material.

  parent reply	other threads:[~2016-03-10 14:30 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-10  5:40 [PATCH 0/8] EFI framebuffer support for ARM and arm64 Ard Biesheuvel
     [not found] ` <1457588408-19309-1-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-03-10  5:40   ` [PATCH 1/8] efi: make install_configuration_table() boot service usable Ard Biesheuvel
     [not found]     ` <1457588408-19309-2-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-03-18 10:59       ` Matt Fleming
     [not found]         ` <20160318105939.GO2619-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-03-18 11:02           ` Ard Biesheuvel
2016-03-10  5:40   ` [PATCH 2/8] efi: libstub: move Graphics Output Protocol handling to generic code Ard Biesheuvel
     [not found]     ` <1457588408-19309-3-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-03-18 11:25       ` Matt Fleming
2016-03-10  5:40   ` [PATCH 3/8] efi/x86: libstub: move to generic GOP code Ard Biesheuvel
2016-03-10  5:40   ` [PATCH 4/8] efi/x86: efifb: move DMI based quirks handling out of generic code Ard Biesheuvel
     [not found]     ` <1457588408-19309-5-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-03-18 10:50       ` Matt Fleming
     [not found]         ` <20160318105007.GM2619-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-03-21 13:42           ` Peter Jones
2016-03-10  5:40   ` [PATCH 5/8] efi: efifb: use builtin_platform_driver and drop unused includes Ard Biesheuvel
     [not found]     ` <1457588408-19309-6-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-03-18 10:52       ` Matt Fleming
2016-03-21 13:43       ` Peter Jones
2016-03-10  5:40   ` [PATCH 6/8] efi/arm*: libstub: wire up GOP handling into the ARM UEFI stub Ard Biesheuvel
     [not found]     ` <1457588408-19309-7-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-03-10  8:25       ` Ingo Molnar
     [not found]         ` <20160310082522.GB8618-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-03-10  8:36           ` Ard Biesheuvel
     [not found]             ` <CAKv+Gu8hTSbZVgGj6epquwf6kkSJV+imAFvNobowFVtB5AUe2Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-10  9:03               ` Ingo Molnar
     [not found]                 ` <20160310090345.GA19834-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-03-10  9:14                   ` Ard Biesheuvel
     [not found]                     ` <CAKv+Gu_rtQjWJ-=Nf-dEYEHVB5dwKMA_Mv2rVujBz9t=3qnUrA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-10  9:25                       ` Ingo Molnar
     [not found]                         ` <20160310092552.GA19588-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-03-10 10:25                           ` Ard Biesheuvel
     [not found]                             ` <CAKv+Gu9ephpDq_KE_xxV+dXSit+VgBxqgXyAeKt4eXpb5KRJnw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-10 14:49                               ` Matt Fleming
2016-03-10 14:30               ` Matt Fleming [this message]
2016-03-18 11:37       ` Matt Fleming
2016-03-10  5:40   ` [PATCH 7/8] efi/arm*: efifb: expose efifb platform device if GOP is available Ard Biesheuvel
2016-03-10  5:40   ` [PATCH 8/8] efi/arm: populate screen_info based on data provided by the UEFI stub Ard Biesheuvel
     [not found]     ` <1457588408-19309-9-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-03-18 11:53       ` Matt Fleming
     [not found]         ` <20160318115313.GR2619-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-03-18 11:57           ` Ard Biesheuvel

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