drm/i915/gvt: enable IOMMU for gvt

gvt driver has a check which doesn't allow to use gvt when host
gpu iommu is enabled. This check can be removed after enable the
iommu support in gvt

Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
index 9a636a2c20774e8a0021604b24799c62f251d35e..3b9d59e457ba7dbf2a1baffff7cd4f4c9aa75f3f 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/gvt.c
+++ b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -75,13 +75,6 @@ int intel_gvt_init_host(void)
        if (xen_domain() && !xen_initial_domain())
                return -ENODEV;
 
-#ifdef CONFIG_INTEL_IOMMU
-       if (intel_iommu_gfx_mapped) {
-               gvt_err("Hardware IOMMU compatibility not yet supported, try to boot with intel_iommu=igfx_off\n");
-               return -ENODEV;
-       }
-#endif
-
        /* Try to load MPT modules for hypervisors */
        if (xen_initial_domain()) {
                /* In Xen dom0 */