tests/megasas-test.c

   1 /*
   2  * QTest testcase for LSI MegaRAID
   3  *
   4  * Copyright (c) 2017 Red Hat Inc.
   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 "libqtest.h"
  12 #include "qemu/bswap.h"
  13 #include "libqos/libqos-pc.h"
  14 #include "libqos/libqos-spapr.h"
  15
  16 static QOSState *qmegasas_start(const char *extra_opts)
  17 {
  18     QOSState *qs;
  19     const char *arch = qtest_get_arch();
  20     const char *cmd = "-drive id=hd0,if=none,file=null-co://,format=raw "
  21                       "-device megasas,id=scsi0,addr=04.0 "
  22                       "-device scsi-hd,bus=scsi0.0,drive=hd0 %s";
  23
  24     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
  25         qs = qtest_pc_boot(cmd, extra_opts ? : "");
  26         global_qtest = qs->qts;
  27         return qs;
  28     }
  29
  30     g_printerr("virtio-scsi tests are only available on x86 or ppc64\n");
  31     exit(EXIT_FAILURE);
  32 }
  33
  34 static void qmegasas_stop(QOSState *qs)
  35 {
  36     qtest_shutdown(qs);
  37 }
  38
  39 /* Tests only initialization so far. TODO: Replace with functional tests */
  40 static void pci_nop(void)
  41 {
  42     QOSState *qs;
  43
  44     qs = qmegasas_start(NULL);
  45     qmegasas_stop(qs);
  46 }
  47
  48 /* This used to cause a NULL pointer dereference.  */
  49 static void megasas_pd_get_info_fuzz(void)
  50 {
  51     QPCIDevice *dev;
  52     QOSState *qs;
  53     QPCIBar bar;
  54     uint32_t context[256];
  55     uint64_t context_pa;
  56     int i;
  57
  58     qs = qmegasas_start(NULL);
  59     dev = qpci_device_find(qs->pcibus, QPCI_DEVFN(4,0));
  60     g_assert(dev != NULL);
  61
  62     qpci_device_enable(dev);
  63     bar = qpci_iomap(dev, 0, NULL);
  64
  65     memset(context, 0, sizeof(context));
  66     context[0] = cpu_to_le32(0x05050505);
  67     context[1] = cpu_to_le32(0x01010101);
  68     for (i = 2; i < ARRAY_SIZE(context); i++) {
  69         context[i] = cpu_to_le32(0x41414141);
  70     }
  71     context[6] = cpu_to_le32(0x02020000);
  72     context[7] = cpu_to_le32(0);
  73
  74     context_pa = qmalloc(qs, sizeof(context));
  75     memwrite(context_pa, context, sizeof(context));
  76     qpci_io_writel(dev, bar, 0x40, context_pa);
  77
  78     g_free(dev);
  79     qmegasas_stop(qs);
  80 }
  81
  82 int main(int argc, char **argv)
  83 {
  84     g_test_init(&argc, &argv, NULL);
  85     qtest_add_func("/megasas/pci/nop", pci_nop);
  86     qtest_add_func("/megasas/dcmd/pd-get-info/fuzz", megasas_pd_get_info_fuzz);
  87
  88     return g_test_run();
  89 }