qemu: add path to bin utilites

pkgs/applications/virtualization/qemu/default.nix

@@ -71,8 +71,10 @@ stdenv.mkDerivation rec {
 
   outputs = [ "out" "ga" ];
 
-  patches = [ ./no-etc-install.patch ]
-    ++ optional nixosTestRunner ./force-uid0-on-9p.patch
+  patches = [
+    ./no-etc-install.patch
+    ./fix-qemu-ga.patch
+  ] ++ optional nixosTestRunner ./force-uid0-on-9p.patch
     ++ optional pulseSupport ./fix-hda-recording.patch
     ++ optionals stdenv.hostPlatform.isMusl [
     (fetchpatch {

pkgs/applications/virtualization/qemu/fix-qemu-ga.patch

@@ -0,0 +1,22 @@
+diff --git a/qga/commands-posix.c b/qga/commands-posix.c
+index 0dc219d..9d020d3 100644
+--- a/qga/commands-posix.c
++++ b/qga/commands-posix.c
+@@ -102,6 +102,8 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
+         reopen_fd_to_null(1);
+         reopen_fd_to_null(2);
+
++        execle("/run/current-system/sw/bin/shutdown", "shutdown", "-h", shutdown_flag, "+0",
++               "hypervisor initiated shutdown", (char*)NULL, environ);
+         execle("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0",
+                "hypervisor initiated shutdown", (char*)NULL, environ);
+         _exit(EXIT_FAILURE);
+@@ -189,6 +191,8 @@ void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
+
+         /* Use '/sbin/hwclock -w' to set RTC from the system time,
+          * or '/sbin/hwclock -s' to set the system time from RTC. */
++        execle("/run/current-system/sw/bin/hwclock", "hwclock", has_time ? "-w" : "-s",
++               NULL, environ);
+         execle("/sbin/hwclock", "hwclock", has_time ? "-w" : "-s",
+                NULL, environ);
+         _exit(EXIT_FAILURE);