Commit c2843e93 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

virtio-vga: adapt to page-per-vq=off 



Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Message-id: 1473319012-27560-1-git-send-email-kraxel@redhat.com
parent 597966d1

hw/display/virtio-vga.c

+11 −0
Original line number Diff line number Diff line
@@ -122,6 +122,17 @@ static void virtio_vga_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 
     */

    vpci_dev->modern_mem_bar = 2;

    vpci_dev->msix_bar = 4;



    if (!(vpci_dev->flags & VIRTIO_PCI_FLAG_PAGE_PER_VQ)) {

        /*

         * with page-per-vq=off there is no padding space we can use

         * for the stdvga registers.  Make the common and isr regions

         * smaller then.

         */

        vpci_dev->common.size /= 2;

        vpci_dev->isr.size /= 2;

    }



    offset = memory_region_size(&vpci_dev->modern_bar);

    offset -= vpci_dev->notify.size;

    vpci_dev->notify.offset = offset;