diff --git a/hw/vfio/igd.c b/hw/vfio/igd.c
index 4e93af1f8d..828222cad1 100644
--- a/hw/vfio/igd.c
+++ b/hw/vfio/igd.c
@@ -488,8 +488,10 @@ static const MemoryRegionOps vfio_igd_quirk_mirror_##name = {           \
     .endianness = DEVICE_LITTLE_ENDIAN,                                 \
 };
 
+VFIO_IGD_QUIRK_MIRROR_REG(IGD_GMCH, ggc)
 VFIO_IGD_QUIRK_MIRROR_REG(IGD_BDSM_GEN11, bdsm)
 
+#define IGD_GGC_MMIO_OFFSET     0x108040
 #define IGD_BDSM_MMIO_OFFSET    0x1080C0
 
 void vfio_probe_igd_bar0_quirk(VFIOPCIDevice *vdev, int nr)
@@ -518,14 +520,21 @@ void vfio_probe_igd_bar0_quirk(VFIOPCIDevice *vdev, int nr)
         return;
     }
 
-    quirk = vfio_quirk_alloc(1);
+    quirk = vfio_quirk_alloc(2);
     quirk->data = vdev;
 
     memory_region_init_io(&quirk->mem[0], OBJECT(vdev),
+                          &vfio_igd_quirk_mirror_ggc, vdev,
+                          "vfio-igd-ggc-quirk", 2);
+    memory_region_add_subregion_overlap(vdev->bars[0].region.mem,
+                                        IGD_GGC_MMIO_OFFSET, &quirk->mem[0],
+                                        1);
+
+    memory_region_init_io(&quirk->mem[1], OBJECT(vdev),
                           &vfio_igd_quirk_mirror_bdsm, vdev,
                           "vfio-igd-bdsm-quirk", 8);
     memory_region_add_subregion_overlap(vdev->bars[0].region.mem,
-                                        IGD_BDSM_MMIO_OFFSET, &quirk->mem[0],
+                                        IGD_BDSM_MMIO_OFFSET, &quirk->mem[1],
                                         1);
 
     QLIST_INSERT_HEAD(&vdev->bars[nr].quirks, quirk, next);