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
  15 static 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
  32 static void qnvme_stop(QOSState *qs)
  33 {
  34     qtest_shutdown(qs);
  35 }
  36
  37 static void nop(void)
  38 {
  39     QOSState *qs;
  40
  41     qs = qnvme_start(NULL);
  42     qnvme_stop(qs);
  43 }
  44
  45 static 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
  73 int 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 }