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/*
* QTest testcase for LSI MegaRAID
*
* Copyright (c) 2017 Red Hat Inc.
*
* 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"
#include "qemu/bswap.h"
#include "libqos/qgraph.h"
#include "libqos/pci.h"
typedef struct QMegasas QMegasas;
struct QMegasas {
QOSGraphObject obj;
QPCIDevice dev;
};
static void *megasas_get_driver(void *obj, const char *interface)
{
QMegasas *megasas = obj;
if (!g_strcmp0(interface, "pci-device")) {
return &megasas->dev;
}
fprintf(stderr, "%s not present in megasas\n", interface);
g_assert_not_reached();
}
static void *megasas_create(void *pci_bus, QGuestAllocator *alloc, void *addr)
{
QMegasas *megasas = g_new0(QMegasas, 1);
QPCIBus *bus = pci_bus;
qpci_device_init(&megasas->dev, bus, addr);
megasas->obj.get_driver = megasas_get_driver;
return &megasas->obj;
}
/* This used to cause a NULL pointer dereference. */
static void megasas_pd_get_info_fuzz(void *obj, void *data, QGuestAllocator *alloc)
{
QMegasas *megasas = obj;
QPCIDevice *dev = &megasas->dev;
QPCIBar bar;
uint32_t context[256];
uint64_t context_pa;
int i;
qpci_device_enable(dev);
bar = qpci_iomap(dev, 0, NULL);
memset(context, 0, sizeof(context));
context[0] = cpu_to_le32(0x05050505);
context[1] = cpu_to_le32(0x01010101);
for (i = 2; i < ARRAY_SIZE(context); i++) {
context[i] = cpu_to_le32(0x41414141);
}
context[6] = cpu_to_le32(0x02020000);
context[7] = cpu_to_le32(0);
context_pa = guest_alloc(alloc, sizeof(context));
qtest_memwrite(dev->bus->qts, context_pa, context, sizeof(context));
qpci_io_writel(dev, bar, 0x40, context_pa);
}
static void megasas_register_nodes(void)
{
QOSGraphEdgeOptions opts = {
.extra_device_opts = "addr=04.0,id=scsi0",
.before_cmd_line = "-drive id=drv0,if=none,file=null-co://,format=raw",
.after_cmd_line = "-device scsi-hd,bus=scsi0.0,drive=drv0",
};
add_qpci_address(&opts, &(QPCIAddress) { .devfn = QPCI_DEVFN(4, 0) });
qos_node_create_driver("megasas", megasas_create);
qos_node_consumes("megasas", "pci-bus", &opts);
qos_node_produces("megasas", "pci-device");
qos_add_test("dcmd/pd-get-info/fuzz", "megasas", megasas_pd_get_info_fuzz, NULL);
}
libqos_init(megasas_register_nodes);
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