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