From: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
To: Greg KH
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
Bryan O'Donoghue
<bryan.odonoghue.lkml-SyKdqv6vbfZdzvEItQ6vdLNAH6kLmebB@public.gmane.org>
Cc: matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org,
matthew.garrett-05XSO3Yj/JvQT0dZR+AlfA@public.gmane.org,
linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
darren.hart-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
josh-iaAMLnmF4UmaiuxdJuQwMA@public.gmane.org,
mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org
Subject: Re: [PATCH] Remove warning in efi_enter_virtual_mode V2
Date: Thu, 18 Apr 2013 23:00:27 -0700 [thread overview]
Message-ID: <bb2db2a1-835f-47d0-830d-0dd3785343a9@email.android.com> (raw)
In-Reply-To: <20130419055813.GA16443-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
The only real use for command line options is to be able to get users to test something during troubleshooting.
Greg KH <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org> wrote:
>On Wed, Apr 17, 2013 at 11:05:41PM +0100, Bryan O'Donoghue wrote:
>> Some EFI BIOS stores BGRT data in the wrong place and some EFI based
>> BIOS also requires mapping of boot code/data when doing
>> efi_enter_virtual_mode.
>>
>> Current code in efi_enter_virtual_mode maps both EFI_RUNTIME_MEMORY
>and
>> BIOS boot code/data.
>>
>> This patch gives the option to switch off that behavior - if your
>BIOS
>> has neither BGRT - nor bugs that require mapping of EFI boot
>code/data
>
>No, never add new boot options, no users, or distros, know to set them.
>Isn't there some way we can dynamically determine this instead?
>
>thanks,
>
>greg k-h
--
Sent from my mobile phone. Please excuse brevity and lack of formatting.
WARNING: multiple messages have this Message-ID (diff)
From: "H. Peter Anvin" <hpa@zytor.com>
To: Greg KH <gregkh@linuxfoundation.org>,
"Bryan O'Donoghue" <bryan.odonoghue.lkml@nexus-software.ie>
Cc: matt@console-pimps.org, matthew.garrett@nebula.com,
linux-efi@vger.kernel.org, x86@kernel.org,
linux-kernel@vger.kernel.org, darren.hart@intel.com,
josh@joshtriplett.org, mingo@kernel.org, tglx@linutronix.de
Subject: Re: [PATCH] Remove warning in efi_enter_virtual_mode V2
Date: Thu, 18 Apr 2013 23:00:27 -0700 [thread overview]
Message-ID: <bb2db2a1-835f-47d0-830d-0dd3785343a9@email.android.com> (raw)
In-Reply-To: <20130419055813.GA16443@kroah.com>
The only real use for command line options is to be able to get users to test something during troubleshooting.
Greg KH <gregkh@linuxfoundation.org> wrote:
>On Wed, Apr 17, 2013 at 11:05:41PM +0100, Bryan O'Donoghue wrote:
>> Some EFI BIOS stores BGRT data in the wrong place and some EFI based
>> BIOS also requires mapping of boot code/data when doing
>> efi_enter_virtual_mode.
>>
>> Current code in efi_enter_virtual_mode maps both EFI_RUNTIME_MEMORY
>and
>> BIOS boot code/data.
>>
>> This patch gives the option to switch off that behavior - if your
>BIOS
>> has neither BGRT - nor bugs that require mapping of EFI boot
>code/data
>
>No, never add new boot options, no users, or distros, know to set them.
>Isn't there some way we can dynamically determine this instead?
>
>thanks,
>
>greg k-h
--
Sent from my mobile phone. Please excuse brevity and lack of formatting.
next prev parent reply other threads:[~2013-04-19 6:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-17 22:05 [PATCH] Remove warning in efi_enter_virtual_mode V2 Bryan O'Donoghue
2013-04-17 22:05 ` Bryan O'Donoghue
[not found] ` <1366236341-22615-1-git-send-email-bryan.odonoghue.lkml-SyKdqv6vbfZdzvEItQ6vdLNAH6kLmebB@public.gmane.org>
2013-04-19 5:58 ` Greg KH
2013-04-19 5:58 ` Greg KH
[not found] ` <20130419055813.GA16443-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2013-04-19 6:00 ` H. Peter Anvin [this message]
2013-04-19 6:00 ` H. Peter Anvin
[not found] ` <bb2db2a1-835f-47d0-830d-0dd3785343a9-2ueSQiBKiTY7tOexoI0I+QC/G2K4zDHf@public.gmane.org>
2013-04-19 6:11 ` Greg KH
2013-04-19 6:11 ` Greg KH
[not found] ` <20130419061146.GA16775-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2013-04-19 6:17 ` H. Peter Anvin
2013-04-19 6:17 ` H. Peter Anvin
2013-04-19 11:15 ` Bryan O'Donoghue
2013-04-19 11:15 ` Bryan O'Donoghue
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