[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] libxl videoram for cirrus graphics
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. - Added videoram setting for qemu upstream with cirrus (added in qemu 1.3). - Updated xl.cfg man. - Default and minimal videoram changed to 16 mb if stdvga is set and upstream qemu is being used. This is required by qemu 1.4 to avoid a xen memory error (qemu 1.3 doesn't complain about it, probably buggy). Signed-off-by: Fabio Fantoni <fabio.fantoni@xxxxxxxxxx> Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> Committed-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Wei. > Cheers, > Rob > > _______________________________________________ > 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
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