[Qemu-devel] [PATCH] exec: silence hugetlbfs warning under qtest

[marcandre.lureau@redhat.com]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

vhost-user-test prints a warning. A test should not need to run on
hugetlbfs, let's silence the warning under qtest. The
condition can't check on qtest_enabled() since vhost-user-test actually
doesn't use qtest accel. However, qtest_driver() can be used, if
qtest_init() is called early enough. For that reason, move chardev and
qtest initialization early.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 exec.c |  5 ++++-
 vl.c   | 28 ++++++++++++++--------------
 2 files changed, 18 insertions(+), 15 deletions(-)

diff --git a/exec.c b/exec.c
index b09f18b..acbd4a2 100644
--- a/exec.c
+++ b/exec.c
@@ -51,6 +51,7 @@
 #include "qemu/main-loop.h"
 #include "translate-all.h"
 #include "sysemu/replay.h"
+#include "sysemu/qtest.h"
 
 #include "exec/memory-internal.h"
 #include "exec/ram_addr.h"
@@ -1196,8 +1197,10 @@ static long gethugepagesize(const char *path, Error **errp)
         return 0;
     }
 
-    if (fs.f_type != HUGETLBFS_MAGIC)
+    if (!qtest_driver() &&
+        fs.f_type != HUGETLBFS_MAGIC) {
         fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path);
+    }
 
     return fs.f_bsize;
 }
diff --git a/vl.c b/vl.c
index 7d993a5..f9c661a 100644
--- a/vl.c
+++ b/vl.c
@@ -4288,14 +4288,23 @@ int main(int argc, char **argv, char **envp)
     page_size_init();
     socket_init();
 
-    if (qemu_opts_foreach(qemu_find_opts("object"),
-                          object_create,
-                          object_create_initial, NULL)) {
+    if (qemu_opts_foreach(qemu_find_opts("chardev"),
+                          chardev_init_func, NULL, NULL)) {
         exit(1);
     }
 
-    if (qemu_opts_foreach(qemu_find_opts("chardev"),
-                          chardev_init_func, NULL, NULL)) {
+    if (qtest_chrdev) {
+        Error *local_err = NULL;
+        qtest_init(qtest_chrdev, qtest_log, &local_err);
+        if (local_err) {
+            error_report_err(local_err);
+            exit(1);
+        }
+    }
+
+    if (qemu_opts_foreach(qemu_find_opts("object"),
+                          object_create,
+                          object_create_initial, NULL)) {
         exit(1);
     }
 
@@ -4325,15 +4334,6 @@ int main(int argc, char **argv, char **envp)
 
     configure_accelerator(current_machine);
 
-    if (qtest_chrdev) {
-        Error *local_err = NULL;
-        qtest_init(qtest_chrdev, qtest_log, &local_err);
-        if (local_err) {
-            error_report_err(local_err);
-            exit(1);
-        }
-    }
-
     machine_opts = qemu_get_machine_opts();
     kernel_filename = qemu_opt_get(machine_opts, "kernel");
     initrd_filename = qemu_opt_get(machine_opts, "initrd");
-- 
2.5.0