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[Xen-devel][PATCH] Dynamic modes support for xenfb (0 of 2)


  • To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Pat Campbell <plc@xxxxxxxxxx>
  • Date: Tue, 25 Mar 2008 14:10:07 -0600
  • Delivery-date: Tue, 25 Mar 2008 13:13:23 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Patches 1of2 and 2of2 adds dynamic frame buffer resolution
support to the PV xenfb frame buffer driver and the PV xenfb
VNC server.

Don't know if you still need an API Changelog entry, included
it here just in case.

---------------------------------------------------------------
API Changelog entry:

 PV framebuffer dynamic resolution facility:

  Guest may send XENFB_TYPE_RESIZE if feature-resize = 1 in
  xenstore of the backend VNC server. VNC server code sets
  feature-resize if it can handle the resize request.

  VM kernel module parameter array, xenfb.video, is used to set
  the amount of frame buffer memory in MB allocated and the
  initial width and height.
 
  IE:  extra="xenfb.video=3,1024,768 "
   
  New xenstore virtual machine specific VNC attributes:
    videoram: Sets the maximum allowable frame buffer allocation
              size in MB.  Protects against a hostile frontend
              trying to run dom0 out of memory. Not set by defualt
 
  IE:  vfb=['type=vnc,vncunused=1,videoram=3']

 


---------------------------------------------------------------

Signed-off-by: Pat Campbell <plc@xxxxxxxxxx>



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