diff --git a/src/virglrenderer.c b/src/virglrenderer.c
index 959e5a8..29674b3 100644
--- a/src/virglrenderer.c
+++ b/src/virglrenderer.c
@@ -60,6 +60,7 @@ struct global_state {
    bool vrend_initialized;
    bool vkr_initialized;
    bool proxy_initialized;
+   bool external_winsys_initialized;
 };
 
 static struct global_state state;
@@ -610,7 +611,7 @@ void virgl_renderer_cleanup(UNUSED void *cookie)
    if (state.vrend_initialized)
       vrend_renderer_fini();
 
-   if (state.winsys_initialized)
+   if (state.winsys_initialized || state.external_winsys_initialized)
       vrend_winsys_cleanup();
 
    memset(&state, 0, sizeof(state));
@@ -679,6 +680,27 @@ int virgl_renderer_init(void *cookie, int flags, struct virgl_renderer_callbacks
       state.winsys_initialized = true;
    }
 
+   if (!state.winsys_initialized && !state.external_winsys_initialized &&
+       state.cbs && state.cbs->version >= 4 && state.cbs->get_egl_display) {
+      void *egl_display = NULL;
+
+      if (!cbs->create_gl_context || !cbs->destroy_gl_context ||
+          !cbs->make_current)
+         goto fail;
+
+      egl_display = state.cbs->get_egl_display(cookie);
+
+      if (!egl_display)
+         goto fail;
+
+      ret = vrend_winsys_init_external(egl_display);
+
+      if (ret)
+         goto fail;
+
+      state.external_winsys_initialized = true;
+   }
+
    if (!state.vrend_initialized && !(flags & VIRGL_RENDERER_NO_VIRGL)) {
       uint32_t renderer_flags = 0;
 
diff --git a/src/virglrenderer.h b/src/virglrenderer.h
index c6988af..cd3523a 100644
--- a/src/virglrenderer.h
+++ b/src/virglrenderer.h
@@ -46,7 +46,7 @@ struct virgl_renderer_gl_ctx_param {
 };
 
 #ifdef VIRGL_RENDERER_UNSTABLE_APIS
-#define VIRGL_RENDERER_CALLBACKS_VERSION 3
+#define VIRGL_RENDERER_CALLBACKS_VERSION 4
 #else
 #define VIRGL_RENDERER_CALLBACKS_VERSION 2
 #endif
@@ -55,18 +55,37 @@ struct virgl_renderer_callbacks {
    int version;
    void (*write_fence)(void *cookie, uint32_t fence);
 
-   /* interact with GL implementation */
+   /*
+    * The following 3 callbacks allows virglrenderer to
+    * use winsys from caller, instead of initializing it's own
+    * winsys (flag VIRGL_RENDERER_USE_EGL or VIRGL_RENDERER_USE_GLX).
+    */
+
+   /* create a GL/GLES context */
    virgl_renderer_gl_context (*create_gl_context)(void *cookie, int scanout_idx, struct virgl_renderer_gl_ctx_param *param);
+   /* destroy a GL/GLES context */
    void (*destroy_gl_context)(void *cookie, virgl_renderer_gl_context ctx);
+   /* make a context current */
    int (*make_current)(void *cookie, int scanout_idx, virgl_renderer_gl_context ctx);
 
-   int (*get_drm_fd)(void *cookie); /* v2, used with flags & VIRGL_RENDERER_USE_EGL */
+   /*
+    * v2, used with flags & VIRGL_RENDERER_USE_EGL
+    * Chose the drm fd, that will be used by virglrenderer
+    * for winsys initialization.
+    */
+   int (*get_drm_fd)(void *cookie);
 
 #ifdef VIRGL_RENDERER_UNSTABLE_APIS
    void (*write_context_fence)(void *cookie, uint32_t ctx_id, uint64_t queue_id, void *fence_cookie);
 
    /* version 0: a connected socket of type SOCK_SEQPACKET */
    int (*get_server_fd)(void *cookie, uint32_t version);
+
+   /*
+    * Get the EGLDisplay from caller. It requires create_gl_context,
+    * destroy_gl_context, make_current to be implemented by caller.
+    */
+   void *(*get_egl_display)(void *cookie);
 #endif
 };
 
diff --git a/src/vrend_winsys.c b/src/vrend_winsys.c
index 669af81..9371e81 100644
--- a/src/vrend_winsys.c
+++ b/src/vrend_winsys.c
@@ -33,7 +33,8 @@
 enum {
    CONTEXT_NONE,
    CONTEXT_EGL,
-   CONTEXT_GLX
+   CONTEXT_GLX,
+   CONTEXT_EGL_EXTERNAL
 };
 
 static int use_context = CONTEXT_NONE;
@@ -102,6 +103,10 @@ void vrend_winsys_cleanup(void)
          virgl_gbm_fini(gbm);
          gbm = NULL;
       }
+   } else if (use_context == CONTEXT_EGL_EXTERNAL) {
+      free(egl);
+      egl = NULL;
+      use_context = CONTEXT_NONE;
    }
 #endif
 #ifdef HAVE_EPOXY_GLX_H
@@ -113,6 +118,23 @@ void vrend_winsys_cleanup(void)
 #endif
 }
 
+int vrend_winsys_init_external(void *egl_display)
+{
+#ifdef HAVE_EPOXY_EGL_H
+      egl = virgl_egl_init_external(egl_display);
+      if (!egl)
+         return -1;
+
+      use_context = CONTEXT_EGL_EXTERNAL;
+#else
+   (void)egl_display;
+   vrend_printf( "EGL is not supported on this platform\n");
+   return -1;
+#endif
+
+   return 0;
+}
+
 virgl_renderer_gl_context vrend_winsys_create_context(struct virgl_gl_ctx_param *param)
 {
 #ifdef HAVE_EPOXY_EGL_H
diff --git a/src/vrend_winsys.h b/src/vrend_winsys.h
index 17507ff..5e60540 100644
--- a/src/vrend_winsys.h
+++ b/src/vrend_winsys.h
@@ -48,6 +48,8 @@ extern struct virgl_gbm *gbm;
 int vrend_winsys_init(uint32_t flags, int preferred_fd);
 void vrend_winsys_cleanup(void);
 
+int vrend_winsys_init_external(void *egl_display);
+
 virgl_renderer_gl_context vrend_winsys_create_context(struct virgl_gl_ctx_param *param);
 void vrend_winsys_destroy_context(virgl_renderer_gl_context ctx);
 int vrend_winsys_make_context_current(virgl_renderer_gl_context ctx);
diff --git a/src/vrend_winsys_egl.c b/src/vrend_winsys_egl.c
index 4dcc668..cda67e9 100644
--- a/src/vrend_winsys_egl.c
+++ b/src/vrend_winsys_egl.c
@@ -419,6 +419,34 @@ void virgl_egl_destroy(struct virgl_egl *egl)
    free(egl);
 }
 
+struct virgl_egl *virgl_egl_init_external(EGLDisplay egl_display)
+{
+   const char *extensions;
+   struct virgl_egl *egl;
+
+   egl = calloc(1, sizeof(struct virgl_egl));
+   if (!egl)
+      return NULL;
+
+   egl->egl_display = egl_display;
+
+   extensions = eglQueryString(egl->egl_display, EGL_EXTENSIONS);
+#ifdef VIRGL_EGL_DEBUG
+   vrend_printf( "EGL version: %s\n",
+           eglQueryString(egl->egl_display, EGL_VERSION));
+   vrend_printf( "EGL vendor: %s\n",
+           eglQueryString(egl->egl_display, EGL_VENDOR));
+   vrend_printf( "EGL extensions: %s\n", extensions);
+#endif
+
+   if (virgl_egl_init_extensions(egl, extensions)) {
+      free(egl);
+      return NULL;
+   }
+
+   return egl;
+}
+
 virgl_renderer_gl_context virgl_egl_create_context(struct virgl_egl *egl, struct virgl_gl_ctx_param *vparams)
 {
    EGLContext egl_ctx;
diff --git a/src/vrend_winsys_egl.h b/src/vrend_winsys_egl.h
index e8dcf85..0ef3e4e 100644
--- a/src/vrend_winsys_egl.h
+++ b/src/vrend_winsys_egl.h
@@ -37,6 +37,8 @@ struct virgl_egl *virgl_egl_init(struct virgl_gbm *gbm, bool surfaceless, bool g
 
 void virgl_egl_destroy(struct virgl_egl *egl);
 
+struct virgl_egl *virgl_egl_init_external(EGLDisplay egl_display);
+
 virgl_renderer_gl_context virgl_egl_create_context(struct virgl_egl *egl,
                                                    struct virgl_gl_ctx_param *vparams);