#11311 HIGH 11.3.0: Secure boot makes Linux audio unusable on XO-1

Zarro Boogs per Child bugtracker at laptop.org
Fri Oct 7 16:22:07 EDT 2011

#11311: Secure boot makes Linux audio unusable on XO-1
           Reporter:  greenfeld            |       Owner:  wmb at firmworks.com
               Type:  defect               |      Status:  new              
           Priority:  high                 |   Milestone:  11.3.0           
          Component:  ofw - open firmware  |     Version:  not specified    
         Resolution:                       |    Keywords:                   
        Next_action:  add to release       |    Verified:  0                
Deployment_affected:                       |   Blockedby:                   
           Blocking:                       |  
Changes (by wmb at firmworks.com):

  * next_action:  diagnose => add to release


 Okay, so there is an elephant in the closet.

 The Geode chipset doesn't really have PCI config registers.  They are
 emulated in firmware via a System Management Interrupt (which is not
 always used) and in Linux by spoofing PCI configuration cycles.

 Fixing that Linux emulation is too risky, so we will just leave the device
 turned on.  Fixed by svn 2585

Ticket URL: <http://dev.laptop.org/ticket/11311#comment:7>
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