Difference between revisions of "Xen ARM with Virtualization Extensions/Vexpress"

From Xen
(Updated for new hypervisor path)
Line 1: Line 1:
* If you are trying to run Xen on a Versatile Express Cortex A15 machine, you might want to copy xen.bin (the Xen binary output) and the Linux Dom0 zImage to the SOFTWARE directory and add the two following stanzas to your ''images.txt'' file:
+
* If you are trying to run Xen on a Versatile Express Cortex A15 machine, you might want to copy xen (the Xen binary output, <tt>xen.git/xen/xen</tt>) and the Linux Dom0 zImage to the SOFTWARE directory and add the two following stanzas to your ''images.txt'' file:
   
 
NOR3UPDATE: AUTO ;IMAGE UPDATE:NONE/AUTO/FORCE
 
NOR3UPDATE: AUTO ;IMAGE UPDATE:NONE/AUTO/FORCE
 
NOR3ADDRESS: 0c000000 ;Image Flash Address
 
NOR3ADDRESS: 0c000000 ;Image Flash Address
NOR3FILE: \SOFTWARE\Xen\xen.bin ;Image File Name
+
NOR3FILE: \SOFTWARE\Xen\xen ;Image File Name
 
NOR3LOAD: 80200000 ;Image Load Address
 
NOR3LOAD: 80200000 ;Image Load Address
 
NOR3ENTRY: 80200000 ;Image Entry Point
 
NOR3ENTRY: 80200000 ;Image Entry Point
Line 12: Line 12:
 
NOR4LOAD: 80008000 ;Image Load Address
 
NOR4LOAD: 80008000 ;Image Load Address
 
NOR4ENTRY: 80008000 ;Image Entry Point
 
NOR4ENTRY: 80008000 ;Image Entry Point
  +
  +
Note that before commit [http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=47d1a51480ad0f602d747e460d619436c907deea 47d1a51] (xen: arm: make zImage the default target which we install) it was necessary to use <tt>xen.git/xen/xen.bin</tt> for NOR3FILE instead of <tt>xen.git/xen/xen</tt>.
   
 
* We recommend disabling the A7 cpus by editing the ''board.txt'' file under the SITE directory corresponding to your Cortex A15 daughterboard:
 
* We recommend disabling the A7 cpus by editing the ''board.txt'' file under the SITE directory corresponding to your Cortex A15 daughterboard:

Revision as of 14:41, 19 July 2013

  • If you are trying to run Xen on a Versatile Express Cortex A15 machine, you might want to copy xen (the Xen binary output, xen.git/xen/xen) and the Linux Dom0 zImage to the SOFTWARE directory and add the two following stanzas to your images.txt file:
NOR3UPDATE: AUTO                    ;IMAGE UPDATE:NONE/AUTO/FORCE
NOR3ADDRESS: 0c000000               ;Image Flash Address
NOR3FILE: \SOFTWARE\Xen\xen         ;Image File Name
NOR3LOAD: 80200000                  ;Image Load Address
NOR3ENTRY: 80200000                 ;Image Entry Point

NOR4UPDATE: AUTO                    ;IMAGE UPDATE:NONE/AUTO/FORCE
NOR4ADDRESS: 000c0000               ;Image Flash Address
NOR4FILE: \SOFTWARE\Xen\zImage      ;Image File Name
NOR4LOAD: 80008000                  ;Image Load Address
NOR4ENTRY: 80008000                 ;Image Entry Point

Note that before commit 47d1a51 (xen: arm: make zImage the default target which we install) it was necessary to use xen.git/xen/xen.bin for NOR3FILE instead of xen.git/xen/xen.

  • We recommend disabling the A7 cpus by editing the board.txt file under the SITE directory corresponding to your Cortex A15 daughterboard:
;SCC: 0x018 0x1FFFFFFF           ;Reset control (CA7s running, CA15s running) - uncomment this for normal operation
;SCC: 0x018 0x1FFFF000           ;Reset control - (CA7s running, CA15s reset) - uncomment this to hold A15 cluster in reset
SCC: 0x018 0x00001FFF            ;Reset control - (CA7s reset, CA15s running) - uncomment this to hold A7 cluster in 
  • The address of the Dom0 kernel in Flash at the moment is not configurable, it is defined as KERNEL_FLASH_ADDRESS in Xen. On a Versatile Express machine this address can be determined by executing flash list images from the boot manager. You'll have to manually change it.
  • In order to make your Dom0 boot sequence faster, you might want to consider passing init=/bin/bash to your kernel and then manually executing a minimal init script like this.