LXR qemu/tests/nvme-test.c

   1/*
   2 * QTest testcase for NVMe
   3 *
   4 * Copyright (c) 2014 SUSE LINUX Products GmbH
   5 *
   6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7 * See the COPYING file in the top-level directory.
   8 */
   9
  10#include "qemu/osdep.h"
  11#include "qemu/units.h"
  12#include "libqtest.h"
  13#include "libqos/libqos-pc.h"
  14
  15static QOSState *qnvme_start(const char *extra_opts)
  16{
  17    QOSState *qs;
  18    const char *arch = qtest_get_arch();
  19    const char *cmd = "-drive id=drv0,if=none,file=null-co://,format=raw "
  20                      "-device nvme,addr=0x4.0,serial=foo,drive=drv0 %s";
  21
  22    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
  23        qs = qtest_pc_boot(cmd, extra_opts ? : "");
  24        global_qtest = qs->qts;
  25        return qs;
  26    }
  27
  28    g_printerr("nvme tests are only available on x86\n");
  29    exit(EXIT_FAILURE);
  30}
  31
  32static void qnvme_stop(QOSState *qs)
  33{
  34    qtest_shutdown(qs);
  35}
  36
  37static void nop(void)
  38{
  39    QOSState *qs;
  40
  41    qs = qnvme_start(NULL);
  42    qnvme_stop(qs);
  43}
  44
  45static void nvmetest_cmb_test(void)
  46{
  47    const int cmb_bar_size = 2 * MiB;
  48    QOSState *qs;
  49    QPCIDevice *pdev;
  50    QPCIBar bar;
  51
  52    qs = qnvme_start("-global nvme.cmb_size_mb=2");
  53    pdev = qpci_device_find(qs->pcibus, QPCI_DEVFN(4,0));
  54    g_assert(pdev != NULL);
  55
  56    qpci_device_enable(pdev);
  57    bar = qpci_iomap(pdev, 2, NULL);
  58
  59    qpci_io_writel(pdev, bar, 0, 0xccbbaa99);
  60    g_assert_cmpint(qpci_io_readb(pdev, bar, 0), ==, 0x99);
  61    g_assert_cmpint(qpci_io_readw(pdev, bar, 0), ==, 0xaa99);
  62
  63    /* Test partially out-of-bounds accesses.  */
  64    qpci_io_writel(pdev, bar, cmb_bar_size - 1, 0x44332211);
  65    g_assert_cmpint(qpci_io_readb(pdev, bar, cmb_bar_size - 1), ==, 0x11);
  66    g_assert_cmpint(qpci_io_readw(pdev, bar, cmb_bar_size - 1), !=, 0x2211);
  67    g_assert_cmpint(qpci_io_readl(pdev, bar, cmb_bar_size - 1), !=, 0x44332211);
  68    g_free(pdev);
  69
  70    qnvme_stop(qs);
  71}
  72
  73int main(int argc, char **argv)
  74{
  75    g_test_init(&argc, &argv, NULL);
  76    qtest_add_func("/nvme/nop", nop);
  77    qtest_add_func("/nvme/cmb_test", nvmetest_cmb_test);
  78
  79    return g_test_run();
  80}
  81