From: "H. Peter Anvin" <hpa@zytor.com>
To: Borislav Petkov <bp@alien8.de>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Thomas Renninger <trenn@suse.de>,
eric.piel@tremplin-utc.net, vojcek@tlen.pl, dsdt@gaugusch.at,
linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
x86@kernel.org, Lin Ming <ming.m.lin@intel.com>,
lenb@kernel.org, robert.moore@intel.com,
Al Viro <viro@zeniv.linux.org.uk>,
Harald Hoyer <harald@redhat.com>
Subject: Re: [PATCH] ACPI: Implement overriding of arbitrary ACPI tables via initrd
Date: Sun, 25 Mar 2012 16:29:39 -0700 [thread overview]
Message-ID: <4F6FAA63.2020107@zytor.com> (raw)
In-Reply-To: <20120325092533.GA13307@liondog.tnic>
On 03/25/2012 02:25 AM, Borislav Petkov wrote:
>
>> /*
>> * findcpio.c
>> *
>> * Find a specific cpio member; must precede any compressed content.
>
> Looks simple enough. Btw, there's some cpio handling already done in
> <init/initramfs.c> - probably reuse some of the code there...?
>
Quite possible, but then you will have to untangle the dependencies.
Keep in mind that it needs to be able to compile this in such a way that
you have no library dependencies and no fixed address references (so
that it can be invoked from the pre-paging code to get microcode updates
in as early as at all possible.) So code reuse is a bit tricky at least
for that specific use case. The ACPI code is less sensitive since it
comes a lot later.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2012-03-25 23:30 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-23 14:29 [PATCH] ACPI: Implement overriding of arbitrary ACPI tables via initrd Thomas Renninger
2012-03-23 15:51 ` Thomas Renninger
2012-03-23 20:05 ` H. Peter Anvin
2012-03-24 1:42 ` Thomas Renninger
2012-03-24 2:01 ` H. Peter Anvin
2012-03-24 3:02 ` Thomas Renninger
2012-03-24 4:40 ` H. Peter Anvin
2012-03-24 4:43 ` H. Peter Anvin
2012-03-24 4:50 ` Yinghai Lu
2012-03-24 4:58 ` H. Peter Anvin
2012-03-24 9:24 ` Borislav Petkov
2012-03-24 18:49 ` H. Peter Anvin
2012-03-25 8:54 ` Borislav Petkov
2012-03-26 1:36 ` H. Peter Anvin
2012-03-26 14:21 ` Konrad Rzeszutek Wilk
2012-03-26 0:45 ` Thomas Renninger
2012-03-26 1:25 ` H. Peter Anvin
2012-03-26 14:19 ` Thomas Renninger
2012-03-26 14:46 ` H. Peter Anvin
2012-03-26 14:51 ` Thomas Renninger
2012-03-27 4:15 ` H. Peter Anvin
2012-03-27 4:46 ` Peter Stuge
2012-03-27 6:18 ` H. Peter Anvin
2012-03-24 18:42 ` Konrad Rzeszutek Wilk
2012-03-24 19:15 ` H. Peter Anvin
2012-03-24 19:17 ` Konrad Rzeszutek Wilk
2012-03-24 19:44 ` H. Peter Anvin
2012-03-24 22:21 ` H. Peter Anvin
2012-03-24 22:44 ` H. Peter Anvin
2012-03-25 9:25 ` Borislav Petkov
2012-03-25 23:29 ` H. Peter Anvin [this message]
2012-03-25 4:17 ` H. Peter Anvin
2012-03-25 9:07 ` Borislav Petkov
2012-03-23 20:54 ` Yinghai Lu
2012-03-24 0:15 ` Yinghai Lu
2012-03-24 1:05 ` Yinghai Lu
2012-03-24 1:22 ` Thomas Renninger
2012-03-24 1:26 ` Thomas Renninger
2012-03-24 4:41 ` Yinghai Lu
2012-03-26 0:45 ` Thomas Renninger
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