Use correct home for realm

src/vm/config.rs

@@ -157,6 +157,10 @@ impl VmConfig {
         self.realm_name.as_ref().map(|s| s.as_str())
     }
 
+    pub fn is_realm(&self) -> bool {
+        self.realm_name.is_some()
+    }
+
     pub fn is_wayland_enabled(&self) -> bool {
         if !self.wayland {
             return false;

src/vm/mod.rs

@@ -87,7 +87,7 @@ impl Vm {
 
         let homedir = config.homedir();
         devices::VirtioP9::create(virtio, "home", homedir, false, false)?;
-        if homedir != "/home/user" {
+        if homedir != "/home/user" && !config.is_realm() {
             cmdline.push_set_val("phinit.home", homedir);
         }