Re: [Xen-devel] [RFC] support console resolutions better than 80x25

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 3 Aug 2006, at 15:07, Jan Beulich wrote:

> Sure, once I know the code is generally acceptable this can be done 
> (till
> now I simply didn't bother).
> As you've seen I omitted the font source files (almost identical 
> clones of
> the respective linux files) - would you want these in a separate 
> directory
> then, too?
Yes, I think all vga stuff can go in its own subdirectory.

> >  * Are the vga files you add pulled from some other project (svgalib)?
> > If so, are they heavily modified or is it plausible for us to track 
> > and
> > port changes from that other project?
> Taken from Linux, but heavily modified.
Fair enough. I suppose this code is unlikely to change much.

> >  * Maybe add a feature or version field to the console_info structure
> > so we can extend it in future.
> Can do. But I considered using the size of the structure sufficient, as
> that basically enforces (with a little discipline) adding to the end 
> of the
> structure.
Ok, makes sense.

To make the code clearer we can put {store,console}_{mfn,evtchn} inside 
a union something like:
union {
    struct {
        store, console info
    } normal;
    struct {
        vga offset, length
    } init;
 } domain;

Changes the API a bit, but not the ABI.

 -- Keir


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