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1 /*
2 * qtest I440FX test case
3 *
4 * Copyright IBM, Corp. 2012-2013
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
11 */
12
13 #include "libqos/pci.h"
14 #include "libqos/pci-pc.h"
15 #include "libqtest.h"
16
17 #include "hw/pci/pci_regs.h"
18
19 #include <glib.h>
20 #include <string.h>
21
22 #define BROKEN 1
23
24 #define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
25
26 typedef struct TestData
27 {
28 int num_cpus;
29 QPCIBus *bus;
30 } TestData;
31
32 static void test_i440fx_defaults(gconstpointer opaque)
33 {
34 const TestData *s = opaque;
35 QPCIDevice *dev;
36 uint32_t value;
37
38 dev = qpci_device_find(s->bus, QPCI_DEVFN(0, 0));
39 g_assert(dev != NULL);
40
41 /* 3.2.2 */
42 g_assert_cmpint(qpci_config_readw(dev, PCI_VENDOR_ID), ==, 0x8086);
43 /* 3.2.3 */
44 g_assert_cmpint(qpci_config_readw(dev, PCI_DEVICE_ID), ==, 0x1237);
45 #ifndef BROKEN
46 /* 3.2.4 */
47 g_assert_cmpint(qpci_config_readw(dev, PCI_COMMAND), ==, 0x0006);
48 /* 3.2.5 */
49 g_assert_cmpint(qpci_config_readw(dev, PCI_STATUS), ==, 0x0280);
50 #endif
51 /* 3.2.7 */
52 g_assert_cmpint(qpci_config_readb(dev, PCI_CLASS_PROG), ==, 0x00);
53 g_assert_cmpint(qpci_config_readw(dev, PCI_CLASS_DEVICE), ==, 0x0600);
54 /* 3.2.8 */
55 g_assert_cmpint(qpci_config_readb(dev, PCI_LATENCY_TIMER), ==, 0x00);
56 /* 3.2.9 */
57 g_assert_cmpint(qpci_config_readb(dev, PCI_HEADER_TYPE), ==, 0x00);
58 /* 3.2.10 */
59 g_assert_cmpint(qpci_config_readb(dev, PCI_BIST), ==, 0x00);
60
61 /* 3.2.11 */
62 value = qpci_config_readw(dev, 0x50); /* PMCCFG */
63 if (s->num_cpus == 1) { /* WPE */
64 g_assert(!(value & (1 << 15)));
65 } else {
66 g_assert((value & (1 << 15)));
67 }
68
69 g_assert(!(value & (1 << 6))); /* EPTE */
70
71 /* 3.2.12 */
72 g_assert_cmpint(qpci_config_readb(dev, 0x52), ==, 0x00); /* DETURBO */
73 /* 3.2.13 */
74 #ifndef BROKEN
75 g_assert_cmpint(qpci_config_readb(dev, 0x53), ==, 0x80); /* DBC */
76 #endif
77 /* 3.2.14 */
78 g_assert_cmpint(qpci_config_readb(dev, 0x54), ==, 0x00); /* AXC */
79 /* 3.2.15 */
80 g_assert_cmpint(qpci_config_readw(dev, 0x55), ==, 0x0000); /* DRT */
81 #ifndef BROKEN
82 /* 3.2.16 */
83 g_assert_cmpint(qpci_config_readb(dev, 0x57), ==, 0x01); /* DRAMC */
84 /* 3.2.17 */
85 g_assert_cmpint(qpci_config_readb(dev, 0x58), ==, 0x10); /* DRAMT */
86 #endif
87 /* 3.2.18 */
88 g_assert_cmpint(qpci_config_readb(dev, 0x59), ==, 0x00); /* PAM0 */
89 g_assert_cmpint(qpci_config_readb(dev, 0x5A), ==, 0x00); /* PAM1 */
90 g_assert_cmpint(qpci_config_readb(dev, 0x5B), ==, 0x00); /* PAM2 */
91 g_assert_cmpint(qpci_config_readb(dev, 0x5C), ==, 0x00); /* PAM3 */
92 g_assert_cmpint(qpci_config_readb(dev, 0x5D), ==, 0x00); /* PAM4 */
93 g_assert_cmpint(qpci_config_readb(dev, 0x5E), ==, 0x00); /* PAM5 */
94 g_assert_cmpint(qpci_config_readb(dev, 0x5F), ==, 0x00); /* PAM6 */
95 #ifndef BROKEN
96 /* 3.2.19 */
97 g_assert_cmpint(qpci_config_readb(dev, 0x60), ==, 0x01); /* DRB0 */
98 g_assert_cmpint(qpci_config_readb(dev, 0x61), ==, 0x01); /* DRB1 */
99 g_assert_cmpint(qpci_config_readb(dev, 0x62), ==, 0x01); /* DRB2 */
100 g_assert_cmpint(qpci_config_readb(dev, 0x63), ==, 0x01); /* DRB3 */
101 g_assert_cmpint(qpci_config_readb(dev, 0x64), ==, 0x01); /* DRB4 */
102 g_assert_cmpint(qpci_config_readb(dev, 0x65), ==, 0x01); /* DRB5 */
103 g_assert_cmpint(qpci_config_readb(dev, 0x66), ==, 0x01); /* DRB6 */
104 g_assert_cmpint(qpci_config_readb(dev, 0x67), ==, 0x01); /* DRB7 */
105 #endif
106 /* 3.2.20 */
107 g_assert_cmpint(qpci_config_readb(dev, 0x68), ==, 0x00); /* FDHC */
108 /* 3.2.21 */
109 g_assert_cmpint(qpci_config_readb(dev, 0x70), ==, 0x00); /* MTT */
110 #ifndef BROKEN
111 /* 3.2.22 */
112 g_assert_cmpint(qpci_config_readb(dev, 0x71), ==, 0x10); /* CLT */
113 #endif
114 /* 3.2.23 */
115 g_assert_cmpint(qpci_config_readb(dev, 0x72), ==, 0x02); /* SMRAM */
116 /* 3.2.24 */
117 g_assert_cmpint(qpci_config_readb(dev, 0x90), ==, 0x00); /* ERRCMD */
118 /* 3.2.25 */
119 g_assert_cmpint(qpci_config_readb(dev, 0x91), ==, 0x00); /* ERRSTS */
120 /* 3.2.26 */
121 g_assert_cmpint(qpci_config_readb(dev, 0x93), ==, 0x00); /* TRC */
122 }
123
124 #define PAM_RE 1
125 #define PAM_WE 2
126
127 static void pam_set(QPCIDevice *dev, int index, int flags)
128 {
129 int regno = 0x59 + (index / 2);
130 uint8_t reg;
131
132 reg = qpci_config_readb(dev, regno);
133 if (index & 1) {
134 reg = (reg & 0x0F) | (flags << 4);
135 } else {
136 reg = (reg & 0xF0) | flags;
137 }
138 qpci_config_writeb(dev, regno, reg);
139 }
140
141 static gboolean verify_area(uint32_t start, uint32_t end, uint8_t value)
142 {
143 uint32_t size = end - start + 1;
144 gboolean ret = TRUE;
145 uint8_t *data;
146 int i;
147
148 data = g_malloc0(size);
149 memread(start, data, size);
150
151 g_test_message("verify_area: data[0] = 0x%x", data[0]);
152
153 for (i = 0; i < size; i++) {
154 if (data[i] != value) {
155 ret = FALSE;
156 break;
157 }
158 }
159
160 g_free(data);
161
162 return ret;
163 }
164
165 static void write_area(uint32_t start, uint32_t end, uint8_t value)
166 {
167 uint32_t size = end - start + 1;
168 uint8_t *data;
169
170 data = g_malloc0(size);
171 memset(data, value, size);
172 memwrite(start, data, size);
173
174 g_free(data);
175 }
176
177 static void test_i440fx_pam(gconstpointer opaque)
178 {
179 const TestData *s = opaque;
180 QPCIDevice *dev;
181 int i;
182 static struct {
183 uint32_t start;
184 uint32_t end;
185 } pam_area[] = {
186 { 0, 0 }, /* Reserved */
187 { 0xF0000, 0xFFFFF }, /* BIOS Area */
188 { 0xC0000, 0xC3FFF }, /* Option ROM */
189 { 0xC4000, 0xC7FFF }, /* Option ROM */
190 { 0xC8000, 0xCBFFF }, /* Option ROM */
191 { 0xCC000, 0xCFFFF }, /* Option ROM */
192 { 0xD0000, 0xD3FFF }, /* Option ROM */
193 { 0xD4000, 0xD7FFF }, /* Option ROM */
194 { 0xD8000, 0xDBFFF }, /* Option ROM */
195 { 0xDC000, 0xDFFFF }, /* Option ROM */
196 { 0xE0000, 0xE3FFF }, /* BIOS Extension */
197 { 0xE4000, 0xE7FFF }, /* BIOS Extension */
198 { 0xE8000, 0xEBFFF }, /* BIOS Extension */
199 { 0xEC000, 0xEFFFF }, /* BIOS Extension */
200 };
201
202 dev = qpci_device_find(s->bus, QPCI_DEVFN(0, 0));
203 g_assert(dev != NULL);
204
205 for (i = 0; i < ARRAY_SIZE(pam_area); i++) {
206 if (pam_area[i].start == pam_area[i].end) {
207 continue;
208 }
209
210 g_test_message("Checking area 0x%05x..0x%05x",
211 pam_area[i].start, pam_area[i].end);
212 /* Switch to RE for the area */
213 pam_set(dev, i, PAM_RE);
214 /* Verify the RAM is all zeros */
215 g_assert(verify_area(pam_area[i].start, pam_area[i].end, 0));
216
217 /* Switch to WE for the area */
218 pam_set(dev, i, PAM_RE | PAM_WE);
219 /* Write out a non-zero mask to the full area */
220 write_area(pam_area[i].start, pam_area[i].end, 0x42);
221
222 #ifndef BROKEN
223 /* QEMU only supports a limited form of PAM */
224
225 /* Switch to !RE for the area */
226 pam_set(dev, i, PAM_WE);
227 /* Verify the area is not our mask */
228 g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x42));
229 #endif
230
231 /* Verify the area is our new mask */
232 g_assert(verify_area(pam_area[i].start, pam_area[i].end, 0x42));
233
234 /* Write out a new mask */
235 write_area(pam_area[i].start, pam_area[i].end, 0x82);
236
237 #ifndef BROKEN
238 /* QEMU only supports a limited form of PAM */
239
240 /* Verify the area is not our mask */
241 g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x82));
242
243 /* Switch to RE for the area */
244 pam_set(dev, i, PAM_RE | PAM_WE);
245 #endif
246 /* Verify the area is our new mask */
247 g_assert(verify_area(pam_area[i].start, pam_area[i].end, 0x82));
248
249 /* Reset area */
250 pam_set(dev, i, 0);
251
252 /* Verify the area is not our new mask */
253 g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x82));
254 }
255 }
256
257 int main(int argc, char **argv)
258 {
259 QTestState *s;
260 TestData data;
261 char *cmdline;
262 int ret;
263
264 g_test_init(&argc, &argv, NULL);
265
266 data.num_cpus = 1;
267
268 cmdline = g_strdup_printf("-smp %d", data.num_cpus);
269 s = qtest_start(cmdline);
270 g_free(cmdline);
271
272 data.bus = qpci_init_pc();
273
274 g_test_add_data_func("/i440fx/defaults", &data, test_i440fx_defaults);
275 g_test_add_data_func("/i440fx/pam", &data, test_i440fx_pam);
276
277
278 ret = g_test_run();
279
280 if (s) {
281 qtest_quit(s);
282 }
283
284 return ret;
285 }