1 files changed, 88 insertions, 0 deletions
diff --git a/tests/qtest/nvme-test.c b/tests/qtest/nvme-test.c
new file mode 100644
index 0000000000..ff0442150c
--- /dev/null
+++ b/tests/qtest/nvme-test.c
@@ -0,0 +1,88 @@
+/*
+ * QTest testcase for NVMe
+ *
+ * Copyright (c) 2014 SUSE LINUX Products GmbH
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/module.h"
+#include "qemu/units.h"
+#include "libqtest.h"
+#include "libqos/qgraph.h"
+#include "libqos/pci.h"
+
+typedef struct QNvme QNvme;
+
+struct QNvme {
+    QOSGraphObject obj;
+    QPCIDevice dev;
+};
+
+static void *nvme_get_driver(void *obj, const char *interface)
+{
+    QNvme *nvme = obj;
+
+    if (!g_strcmp0(interface, "pci-device")) {
+        return &nvme->dev;
+    }
+
+    fprintf(stderr, "%s not present in nvme\n", interface);
+    g_assert_not_reached();
+}
+
+static void *nvme_create(void *pci_bus, QGuestAllocator *alloc, void *addr)
+{
+    QNvme *nvme = g_new0(QNvme, 1);
+    QPCIBus *bus = pci_bus;
+
+    qpci_device_init(&nvme->dev, bus, addr);
+    nvme->obj.get_driver = nvme_get_driver;
+
+    return &nvme->obj;
+}
+
+/* This used to cause a NULL pointer dereference.  */
+static void nvmetest_oob_cmb_test(void *obj, void *data, QGuestAllocator *alloc)
+{
+    const int cmb_bar_size = 2 * MiB;
+    QNvme *nvme = obj;
+    QPCIDevice *pdev = &nvme->dev;
+    QPCIBar bar;
+
+    qpci_device_enable(pdev);
+    bar = qpci_iomap(pdev, 2, NULL);
+
+    qpci_io_writel(pdev, bar, 0, 0xccbbaa99);
+    g_assert_cmpint(qpci_io_readb(pdev, bar, 0), ==, 0x99);
+    g_assert_cmpint(qpci_io_readw(pdev, bar, 0), ==, 0xaa99);
+
+    /* Test partially out-of-bounds accesses.  */
+    qpci_io_writel(pdev, bar, cmb_bar_size - 1, 0x44332211);
+    g_assert_cmpint(qpci_io_readb(pdev, bar, cmb_bar_size - 1), ==, 0x11);
+    g_assert_cmpint(qpci_io_readw(pdev, bar, cmb_bar_size - 1), !=, 0x2211);
+    g_assert_cmpint(qpci_io_readl(pdev, bar, cmb_bar_size - 1), !=, 0x44332211);
+}
+
+static void nvme_register_nodes(void)
+{
+    QOSGraphEdgeOptions opts = {
+        .extra_device_opts = "addr=04.0,drive=drv0,serial=foo",
+        .before_cmd_line = "-drive id=drv0,if=none,file=null-co://,"
+                           "file.read-zeroes=on,format=raw",
+    };
+
+    add_qpci_address(&opts, &(QPCIAddress) { .devfn = QPCI_DEVFN(4, 0) });
+
+    qos_node_create_driver("nvme", nvme_create);
+    qos_node_consumes("nvme", "pci-bus", &opts);
+    qos_node_produces("nvme", "pci-device");
+
+    qos_add_test("oob-cmb-access", "nvme", nvmetest_oob_cmb_test, &(QOSGraphTestOptions) {
+        .edge.extra_device_opts = "cmb_size_mb=2"
+    });
+}
+
+libqos_init(nvme_register_nodes);