Hi, > Absolutely, it's pretty common to mix regions in a BAR. > For example, we have virtio kick (ioeventfd backed, > handled in kernel) in same BAR as common and device > specific configuration. > We did the same thing you are now doing with the > virtio BAR, and now we have to maintain two code > bases, virtio pci config was designed to be future proof > so why not use it? It's not about virtio at all. It's about vga compatibility, so we have a simple framebuffer as boot display. Only used when virtio is *not* enabled. > This is mostly just making sure we don't paint ourselves into a corner. It's a simple memory bar. vga cards have that since pci was invented (standalone ones, chipset graphics aside), and there havn't been fundamental changes ... cheers, Gerd -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
