commit bdca04792cf955103a8bb5316e1f58cd50acd3f6
author Inseob Kim <inseob@google.com> Fri Jul 28 19:20:56 2023 +0900
committer Inseob Kim <inseob@google.com> Wed Aug 02 15:08:19 2023 +0900
tree ebbcb694688286c129420a133f5737b54a9b6dba
parent 6ef80977be32b8280118264c554e1a3fad30d384

Bind devices to VFIO with VirtualizationService

vfio_handler service is added, which is a minimal service for tasks
which should be done as root. It will interact to sysfs to bind
VFIO devices.

Bug: 287379025
Bug: 278008182
Test: adb shell /apex/com.android.virt/bin/vm run-microdroid \
      --devices /sys/bus/platform/devices/16d00000.eh --protected
Change-Id: Ia99f2be86c33b171297f76f7e30eacfc083aeaa0

apex/Android.bp

diff --git a/apex/Android.bp b/apex/Android.bp
index 7ef2c79..765372a 100644
--- a/apex/Android.bp
+++ b/apex/Android.bp
@@ -76,6 +76,7 @@
         arm64: {
             binaries: [
                 "crosvm",
+                "vfio_handler",
                 "virtmgr",
                 "virtualizationservice",
             ],
@@ -84,6 +85,7 @@
         x86_64: {
             binaries: [
                 "crosvm",
+                "vfio_handler",
                 "virtmgr",
                 "virtualizationservice",
             ],

apex/virtualizationservice.rc

diff --git a/apex/virtualizationservice.rc b/apex/virtualizationservice.rc
index 02b2081..be90904 100644
--- a/apex/virtualizationservice.rc
+++ b/apex/virtualizationservice.rc
@@ -19,3 +19,10 @@
     interface aidl android.system.virtualizationservice
     disabled
     oneshot
+
+service vfio_handler /apex/com.android.virt/bin/vfio_handler
+    user root
+    group root
+    interface aidl android.system.virtualizationservice_internal.IVfioHandler
+    disabled
+    oneshot