From 5090aa71604765135100b7b55e201837dd389e13 Mon Sep 17 00:00:00 2001
From: Gurchetan Singh <gurchetansingh@google.com>
Date: Mon, 16 Jun 2025 07:42:56 -0700
Subject: [PATCH] gfxstream: fix opening virtgpu DRM

Somebody needs to modify Cuttlefish's SELinux rules to
account for the syscalls used by drmGetDevices2().

Reviewed-by: Marcin Radomski <dextero@google.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35580>
---
 .../guest/platform/linux/LinuxVirtGpuDevice.cpp       | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/gfxstream/guest/platform/linux/LinuxVirtGpuDevice.cpp b/src/gfxstream/guest/platform/linux/LinuxVirtGpuDevice.cpp
index d1084821517..9b55eada0e9 100644
--- a/src/gfxstream/guest/platform/linux/LinuxVirtGpuDevice.cpp
+++ b/src/gfxstream/guest/platform/linux/LinuxVirtGpuDevice.cpp
@@ -164,12 +164,21 @@ int32_t LinuxVirtGpuDevice::init(int32_t descriptor) {
 #endif
 
     if (descriptor < 0) {
+#if DETECT_OS_ANDROID
+        // Somebody needs to modify CF's SELinux rules to account for the syscalls used by
+        // drmGetDevices2().
+        mDeviceHandle = static_cast<int64_t>(drmOpenRender(128));
+        if (mDeviceHandle < 0) {
+            mesa_loge("Failed to open rendernode: %s", strerror(errno));
+            return -EINVAL;
+        }
+#else
         ret = openDevice();
         if (ret < 0) {
             mesa_logd("no virtio_gpu devices found");
             return ret;
         }
-
+#endif
     } else {
         mDeviceHandle = dup(descriptor);
         if (mDeviceHandle < 0) {