tests/qtest/fuzz-megasas-test.c

   1 /*
   2  * QTest fuzzer-generated testcase for megasas device
   3  *
   4  * Copyright (c) 2020 Li Qiang <liq3ea@gmail.com>
   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
  12 #include "libqtest.h"
  13
  14 /*
  15  * This used to trigger the assert in scsi_dma_complete
  16  * https://bugs.launchpad.net/qemu/+bug/1878263
  17  */
  18 static void test_lp1878263_megasas_zero_iov_cnt(void)
  19 {
  20     QTestState *s;
  21
  22     s = qtest_init("-nographic -monitor none -serial none "
  23                    "-M q35 -device megasas -device scsi-cd,drive=null0 "
  24                    "-blockdev driver=null-co,read-zeroes=on,node-name=null0");
  25     qtest_outl(s, 0xcf8, 0x80001818);
  26     qtest_outl(s, 0xcfc, 0xc101);
  27     qtest_outl(s, 0xcf8, 0x8000181c);
  28     qtest_outl(s, 0xcf8, 0x80001804);
  29     qtest_outw(s, 0xcfc, 0x7);
  30     qtest_outl(s, 0xcf8, 0x8000186a);
  31     qtest_writeb(s, 0x14, 0xfe);
  32     qtest_writeb(s, 0x0, 0x02);
  33     qtest_outb(s, 0xc1c0, 0x17);
  34     qtest_quit(s);
  35 }
  36
  37 /*
  38  * Overflow SGL buffer.
  39  * https://gitlab.com/qemu-project/qemu/-/issues/521
  40  */
  41 static void test_gitlab_issue521_megasas_sgl_ovf(void)
  42 {
  43     QTestState *s = qtest_init("-m 32M -machine q35 "
  44                                "-nodefaults -device megasas "
  45                                "-device scsi-cd,drive=null0 "
  46                                "-blockdev "
  47                                "driver=null-co,read-zeroes=on,node-name=null0");
  48     qtest_outl(s, 0xcf8, 0x80000818);
  49     qtest_outl(s, 0xcfc, 0xc000);
  50     qtest_outl(s, 0xcf8, 0x80000804);
  51     qtest_outw(s, 0xcfc, 0x05);
  52     qtest_bufwrite(s, 0x0, "\x01", 0x1);
  53     qtest_bufwrite(s, 0x7, "\x01", 0x1);
  54     qtest_bufwrite(s, 0x10, "\x02", 0x1);
  55     qtest_bufwrite(s, 0x16, "\x01", 0x1);
  56     qtest_bufwrite(s, 0x28, "\x01", 0x1);
  57     qtest_bufwrite(s, 0x33, "\x01", 0x1);
  58     qtest_outb(s, 0xc040, 0x0);
  59     qtest_outb(s, 0xc040, 0x20);
  60     qtest_outl(s, 0xc040, 0x20000000);
  61     qtest_outb(s, 0xc040, 0x20);
  62     qtest_quit(s);
  63 }
  64
  65 int main(int argc, char **argv)
  66 {
  67     g_test_init(&argc, &argv, NULL);
  68
  69     qtest_add_func("fuzz/test_lp1878263_megasas_zero_iov_cnt",
  70                    test_lp1878263_megasas_zero_iov_cnt);
  71     qtest_add_func("fuzz/gitlab_issue521_megasas_sgl_ovf",
  72                    test_gitlab_issue521_megasas_sgl_ovf);
  73
  74     return g_test_run();
  75 }