From c62a0c7ce34ed99a7c45199b9fddeafaba73f3bf Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 11 Mar 2019 11:14:40 -0600 Subject: vfio/display: add xres + yres properties This allows configure the display resolution which the vgpu should use. The information will be passed to the guest using EDID, so the mdev driver must support the vfio edid region for this to work. Signed-off-by: Gerd Hoffmann Reviewed-by: Liam Merwick Signed-off-by: Alex Williamson --- hw/vfio/pci.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'hw/vfio/pci.c') diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index dd12f36..504019c 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3068,6 +3068,16 @@ static void vfio_realize(PCIDevice *pdev, Error **errp) error_setg(errp, "ramfb=on requires display=on"); goto out_teardown; } + if (vdev->display_xres || vdev->display_yres) { + if (vdev->dpy == NULL) { + error_setg(errp, "xres and yres properties require display=on"); + goto out_teardown; + } + if (vdev->dpy->edid_regs == NULL) { + error_setg(errp, "xres and yres properties need edid support"); + goto out_teardown; + } + } vfio_register_err_notifier(vdev); vfio_register_req_notifier(vdev); @@ -3182,6 +3192,8 @@ static Property vfio_pci_dev_properties[] = { DEFINE_PROP_STRING("sysfsdev", VFIOPCIDevice, vbasedev.sysfsdev), DEFINE_PROP_ON_OFF_AUTO("display", VFIOPCIDevice, display, ON_OFF_AUTO_OFF), + DEFINE_PROP_UINT32("xres", VFIOPCIDevice, display_xres, 0), + DEFINE_PROP_UINT32("yres", VFIOPCIDevice, display_yres, 0), DEFINE_PROP_UINT32("x-intx-mmap-timeout-ms", VFIOPCIDevice, intx.mmap_timeout, 1100), DEFINE_PROP_BIT("x-vga", VFIOPCIDevice, features, -- cgit v1.1