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/*
* QTest fuzzer-generated testcase for megasas device
*
* Copyright (c) 2020 Li Qiang <liq3ea@gmail.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "libqtest.h"
/*
* This used to trigger the assert in scsi_dma_complete
* https://bugs.launchpad.net/qemu/+bug/1878263
*/
static void test_lp1878263_megasas_zero_iov_cnt(void)
{
QTestState *s;
s = qtest_init("-nographic -monitor none -serial none "
"-M q35 -device megasas -device scsi-cd,drive=null0 "
"-blockdev driver=null-co,read-zeroes=on,node-name=null0");
qtest_outl(s, 0xcf8, 0x80001818);
qtest_outl(s, 0xcfc, 0xc101);
qtest_outl(s, 0xcf8, 0x8000181c);
qtest_outl(s, 0xcf8, 0x80001804);
qtest_outw(s, 0xcfc, 0x7);
qtest_outl(s, 0xcf8, 0x8000186a);
qtest_writeb(s, 0x14, 0xfe);
qtest_writeb(s, 0x0, 0x02);
qtest_outb(s, 0xc1c0, 0x17);
qtest_quit(s);
}
/*
* Overflow SGL buffer.
* https://gitlab.com/qemu-project/qemu/-/issues/521
*/
static void test_gitlab_issue521_megasas_sgl_ovf(void)
{
QTestState *s = qtest_init("-display none -m 32M -machine q35 "
"-nodefaults -device megasas "
"-device scsi-cd,drive=null0 "
"-blockdev "
"driver=null-co,read-zeroes=on,node-name=null0");
qtest_outl(s, 0xcf8, 0x80000818);
qtest_outl(s, 0xcfc, 0xc000);
qtest_outl(s, 0xcf8, 0x80000804);
qtest_outw(s, 0xcfc, 0x05);
qtest_bufwrite(s, 0x0, "\x01", 0x1);
qtest_bufwrite(s, 0x7, "\x01", 0x1);
qtest_bufwrite(s, 0x10, "\x02", 0x1);
qtest_bufwrite(s, 0x16, "\x01", 0x1);
qtest_bufwrite(s, 0x28, "\x01", 0x1);
qtest_bufwrite(s, 0x33, "\x01", 0x1);
qtest_outb(s, 0xc040, 0x0);
qtest_outb(s, 0xc040, 0x20);
qtest_outl(s, 0xc040, 0x20000000);
qtest_outb(s, 0xc040, 0x20);
qtest_quit(s);
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
qtest_add_func("fuzz/test_lp1878263_megasas_zero_iov_cnt",
test_lp1878263_megasas_zero_iov_cnt);
qtest_add_func("fuzz/gitlab_issue521_megasas_sgl_ovf",
test_gitlab_issue521_megasas_sgl_ovf);
return g_test_run();
}
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