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/*
* 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);
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