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Message-Id: <20090608052934.8214DDA837@void.codelabs.ru>
Date: Mon,  8 Jun 2009 09:29:34 +0400 (MSD)
From: Eygene Ryabinkin <rea-fbsd@codelabs.ru>
Reply-To: Eygene Ryabinkin <rea-fbsd@codelabs.ru>
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: [patch] teach acpidump to disassemble arbitrary memory locations
X-Send-Pr-Version: 3.113
X-GNATS-Notify:

>Number:         135349
>Category:       bin
>Synopsis:       [patch] teach acpidump(8) to disassemble arbitrary memory locations
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    sbruno
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jun 08 05:30:05 UTC 2009
>Closed-Date:    Thu Apr 04 15:31:20 UTC 2013
>Last-Modified:  Thu Apr 04 15:31:20 UTC 2013
>Originator:     Eygene Ryabinkin
>Release:        FreeBSD 8-CURRENT amd64
>Organization:
Code Labs
>Environment:

System:	FreeBSD 8-CURRENT amd64

>Description:

It is not uncommon when some chunks of the AML code are loaded by DSDT
from the memory locations that aren't part of the DSDT itself, but one
wants to see what's inside.  It can be achieved with 'dd' and 'iasl',
but it is better to implement this machinery inside acpidump to ease the
life of both users and develepers that needs to see the full picture
of the ACPI stuff from foreign machines.

>How-To-Repeat:

Look at 'man 8 acpidump' and search for anything resembling arbitrary
memory locations disassembly.

>Fix:

Here's the patch for 8-CURRENT that enables the functionality, described
above.  Patch for 7-STABLE will be a bit different, I'll backport it if
MFC will be relevant to this issue (and the issue itself will be
classified as relevant ;)).

--- acpidump-disassemble-specified-memory-locations.diff begins here ---
begin 644 acpidump-disassemble-specified-memory-locations.diff
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`
end
--- acpidump-disassemble-specified-memory-locations.diff ends here ---
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-acpi 
Responsible-Changed-By: vwe 
Responsible-Changed-When: Tue Jun 16 21:33:35 UTC 2009 
Responsible-Changed-Why:  

Over to maintainer(s). 

http://www.freebsd.org/cgi/query-pr.cgi?pr=135349 
Responsible-Changed-From-To: freebsd-acpi->sbruno 
Responsible-Changed-By: sbruno 
Responsible-Changed-When: Thu Sep 27 19:57:24 UTC 2012 
Responsible-Changed-Why:  
Can you update this patch set against -current and add in mem range checks 
and header validation?  The current state of this patch could cause bad things 
to happen without them if the ACPI DSDT is not correct. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=135349 
State-Changed-From-To: open->closed 
State-Changed-By: sbruno 
State-Changed-When: Thu Apr 4 15:29:42 UTC 2013 
State-Changed-Why:  
This patch is rejected due to security implication of no bounds 
or range checking.  Nor does this patch do header validation prior 
to displays. 

We'd really like a 2nd version of this patch that had these features  
so we could include it. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=135349 
>Unformatted:
