From: Alex Williamson <alex.williamson@redhat.com>
Date: Mon, 25 Aug 2014 18:10:15 +0000 (-0600)
Subject: vfio: Enable NVIDIA 88000 region quirk regardless of VGA
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=fe08275db9b88ecf3a30c7540b894c25aec150c2;p=people%2Fliuw%2Flibxenctrl-split%2Fqemu-xen.git

vfio: Enable NVIDIA 88000 region quirk regardless of VGA

If we make use of OVMF for the BIOS then we can use GPUs without VGA
space access, but we still need this quirk.  Disassociate it from the
x-vga option and enable it on all NVIDIA VGA display class devices.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---

diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c
index 0617b70ea..40dcaa655 100644
--- a/hw/misc/vfio.c
+++ b/hw/misc/vfio.c
@@ -2194,9 +2194,13 @@ static void vfio_probe_nvidia_bar0_88000_quirk(VFIODevice *vdev, int nr)
 {
     PCIDevice *pdev = &vdev->pdev;
     VFIOQuirk *quirk;
+    uint16_t vendor, class;
 
-    if (!vdev->has_vga || nr != 0 ||
-        pci_get_word(pdev->config + PCI_VENDOR_ID) != PCI_VENDOR_ID_NVIDIA) {
+    vendor = pci_get_word(pdev->config + PCI_VENDOR_ID);
+    class = pci_get_word(pdev->config + PCI_CLASS_DEVICE);
+
+    if (nr != 0 || vendor != PCI_VENDOR_ID_NVIDIA ||
+        class != PCI_CLASS_DISPLAY_VGA) {
         return;
     }