On Tue, 2014-09-23 at 14:30 +0200, Gerd Hoffmann wrote: > Hi, (Adding Mike)
> Series applies on top of the vga patches posted yesterday. > It adds a mmio register to the pci stdvga cards allowing > to switch framebuffer endiannness. Ben's patches 1+2 prepare > for runtime-swicthable endianness and patch #3 actually > implements the new register. It has been placed in a new > range to avoid conflicts in case the bochs dispi interface > will be extended in the future. The separate range also > makes it easier to turn off on old machine types. Thanks. I'll try to produce patches for offb and bochsdrmfb to adjust endianness & test some time this week or next week. Now the remaining point of contention is the "auto switch" functionality which, sadly, is needed for existing LE guests to work properly. I understand the reticence, on the other hand, our "pseries" machine is really a paravirtualized environment where qemu implements the hypervisor hcall interface, so in that context, it does make some sense that the "hypervisor" affects some HW configuration/state on endian switch (which is such an hcall). The problem is how to do that in a reasonably clean way from an implementation perspective. The patch at https://github.com/ozbenh/qemu/commit/778c92cebcd12fdafd2050dc4d7ca2521c462e46 is one attempt to do it, for whatever it's worth, but I'm open to alternatives. Cheers, Ben.
