VGT_PVINFO_SIZE
drm_WARN_ON(&i915->drm, sizeof(struct vgt_if) != VGT_PVINFO_SIZE);
BUILD_BUG_ON(sizeof(struct vgt_if) != VGT_PVINFO_SIZE);
shared_area = pci_iomap_range(pdev, 0, VGT_PVINFO_PAGE, VGT_PVINFO_SIZE);
MMIO_F(_MMIO(VGT_PVINFO_PAGE), VGT_PVINFO_SIZE);