[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] libxl videoram for cirrus graphics
On Tue, 2013-09-17 at 19:51 +0200, Fabio Fantoni wrote: > With upstream qemu >1.4 videoram must be atleast 8 mb with cirrus and > 16 mb with stdvga or domUs will be unable to start (critical xen > memory error). So we should make it 4mb for qemu-trad and 8 for qemu-xen? > > All details should be on topic about my patch of some months ago. Do you happen to have a link? > > > > 2013/9/17 Ian Campbell <ian.campbell@xxxxxxxxxx> > On Tue, 2013-09-17 at 14:24 +0100, Wei Liu wrote: > > On Tue, Sep 17, 2013 at 12:54:57PM +0000, Rob Hoes wrote: > > > Hi, > > > > > > The videoram setting in xl config files is documented as > follows: > > > > > > " > > > videoram=MBYTES > > > > > > Sets the amount of RAM which the emulated video card > will contain, which in turn limits the resolutions and bit > depths which will be available. The default amount of video > ram for stdvga is 8MB which is sufficient for e.g. 1600x1200 > at 32bpp and videoram option is currently working only when > using the qemu-xen-traditional device-model. > > > > > > When using the emulated Cirrus graphics card > (vga="cirrus") the amount of video ram is fixed at 4MB which > is sufficient for 1024x768 at 32 bpp and videoram option is > currently working only when using the upstream qemu-xen > device-model. > > > " > > > > > > XenServer also uses a default of 4MB video ram for cirrus > graphics. > > > > > > However, when I use xl to create a VM with cirrus > graphics, I get 8MB of video RAM by default. Moreover, setting > it to videoram=4 in the config file leads to complaints from > libxl: > > > > > > > libxl_create.c:228:libxl__domain_build_info_setdefault: > videoram must be at least 8 mb > > > > > > Is there a bug in the logic in libxl_create.c? > > > > > > > I think the document needs to be updated. > > > > commit 2e814a017155b885e4d4b5a88dc05e7367a9722a > > Author: Fabio Fantoni <fabio.fantoni@xxxxxxxxxx> > > Date: Fri Feb 15 13:32:27 2013 +0000 > > > > tools/libxl: Improve videoram setting > > > > - If videoram setting is less than 8 mb shows error and > exit. > > > I wonder why this is the case. Fabvio do you remmeberwhere > this number > 8M came from for Cirrus? > > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxx > http://lists.xen.org/xen-devel > > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |