From: "H. Peter Anvin" <hpa@zytor.com>
To: Dave Young <dyoung@redhat.com>
Cc: mjg59@srcf.ucam.org, linux-efi@vger.kernel.org,
Toshi Kani <toshi.kani@hp.com>, Greg KH <greg@kroah.com>,
x86@kernel.org, kexec@lists.infradead.org,
James.Bottomley@HansenPartnership.com, horms@verge.net.au,
bp@alien8.de, ebiederm@xmission.com,
Ingo Molnar <mingo@kernel.org>,
vgoyal@redhat.com
Subject: Re: [patch 1/3 v2] Add function get_bootparam
Date: Sun, 17 Nov 2013 21:36:26 -0800 [thread overview]
Message-ID: <5e236f94-9337-4cdd-a726-295391e4d305@email.android.com> (raw)
In-Reply-To: <20131118052949.GA14532@dhcp-16-126.nay.redhat.com>
In other words, we didn't catch that one in time. Oh well.
Dave Young <dyoung@redhat.com> wrote:
>On 11/17/13 at 07:29pm, H. Peter Anvin wrote:
>> On 11/17/2013 06:22 PM, Dave Young wrote:
>> > On 11/13/13 at 08:50am, Dave Young wrote:
>> >> On 11/12/13 at 06:51pm, Greg KH wrote:
>> >>> On Tue, Nov 12, 2013 at 01:37:25AM -0800, H. Peter Anvin wrote:
>> >>>> On 11/12/2013 12:30 AM, Greg KH wrote:
>> >>>>>
>> >>>>> And these binary data blobs are a "standard" somewhere, and
>will not
>> >>>>> change per kernel version change?
>> >>>>>
>> >>>>> If so, that structure is fine with me.
>> >>>>>
>> >>>>
>> >>>> Correct. The structure is documented in
>Documentation/x86/boot.txt, and
>> >>>> has been largely invariant (but extended) since the beginning of
>Linux.
>> >>>> It has sometimes taken some serious work to keep it that way.
>> >>>
>> >>> Ok, then use the binary sysfs file interface for these blobs, and
>> >>> everyone will be happy.
>> >>
>> >> Since we got an agreement I will move them to sysfs in next
>version.
>> >
>> > I have created one patch for the sysfs part this weekend, bug I'm
>hesitating to
>> > remove the debugfs part because currently there's already user, I
>tend to
>> > keep them in debugfs for now.
>> >
>> > What do you think, Peter?
>> >
>>
>> Yes, it makes sense to keep them for compatibility, at least for now.
>> What is the specific user that already exists?
>
>kexec-tools is using it to setup hardware_subarch..
>
>--
>Thanks
>Dave
--
Sent from my mobile phone. Please pardon brevity and lack of formatting.
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next prev parent reply other threads:[~2013-11-18 5:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-05 8:29 [patch 0/3 v2] kexec-tools: efi runtime support dyoung
2013-11-05 8:29 ` [patch 1/3 v2] Add function get_bootparam dyoung
2013-11-12 1:27 ` Toshi Kani
2013-11-12 2:14 ` Dave Young
2013-11-12 3:20 ` H. Peter Anvin
2013-11-12 3:53 ` Ingo Molnar
[not found] ` <aa0ccca4-b27b-41b6-8adb-3c969eb29bf7@email.android.com>
2013-11-12 14:26 ` Vivek Goyal
2013-11-12 7:58 ` Greg KH
2013-11-12 8:08 ` Dave Young
2013-11-12 8:30 ` Greg KH
2013-11-12 8:50 ` Dave Young
2013-11-12 9:37 ` H. Peter Anvin
2013-11-12 9:51 ` Greg KH
2013-11-13 0:50 ` Dave Young
2013-11-18 2:22 ` Dave Young
2013-11-18 3:29 ` H. Peter Anvin
2013-11-18 5:29 ` Dave Young
2013-11-18 5:36 ` H. Peter Anvin [this message]
2013-11-05 8:29 ` [patch 2/3 v2] Add efi_info in x86 setup header dyoung
2013-11-05 8:29 ` [patch 3/3 v2] Passing efi related data via setup_data dyoung
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