1 /*
2 * QTest testcase for CXL
3 *
4 * This work is licensed under the terms of the GNU GPL, version 2 or later.
5 * See the COPYING file in the top-level directory.
6 */
7
8 #include "qemu/osdep.h"
9 #include "libqtest-single.h"
10
11 #define QEMU_PXB_CMD \
12 "-machine q35,cxl=on " \
13 "-device pxb-cxl,id=cxl.0,bus=pcie.0,bus_nr=52 " \
14 "-M cxl-fmw.0.targets.0=cxl.0,cxl-fmw.0.size=4G "
15
16 #define QEMU_2PXB_CMD \
17 "-machine q35,cxl=on " \
18 "-device pxb-cxl,id=cxl.0,bus=pcie.0,bus_nr=52 " \
19 "-device pxb-cxl,id=cxl.1,bus=pcie.0,bus_nr=53 " \
20 "-M cxl-fmw.0.targets.0=cxl.0,cxl-fmw.0.targets.1=cxl.1,cxl-fmw.0.size=4G "
21
22 #define QEMU_RP \
23 "-device cxl-rp,id=rp0,bus=cxl.0,chassis=0,slot=0 "
24
25 /* Dual ports on first pxb */
26 #define QEMU_2RP \
27 "-device cxl-rp,id=rp0,bus=cxl.0,chassis=0,slot=0 " \
28 "-device cxl-rp,id=rp1,bus=cxl.0,chassis=0,slot=1 "
29
30 /* Dual ports on each of the pxb instances */
31 #define QEMU_4RP \
32 "-device cxl-rp,id=rp0,bus=cxl.0,chassis=0,slot=0 " \
33 "-device cxl-rp,id=rp1,bus=cxl.0,chassis=0,slot=1 " \
34 "-device cxl-rp,id=rp2,bus=cxl.1,chassis=0,slot=2 " \
35 "-device cxl-rp,id=rp3,bus=cxl.1,chassis=0,slot=3 "
36
37 #define QEMU_T3D_DEPRECATED \
38 "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \
39 "-object memory-backend-file,id=lsa0,mem-path=%s,size=256M " \
40 "-device cxl-type3,bus=rp0,memdev=cxl-mem0,lsa=lsa0,id=cxl-pmem0 "
41
42 #define QEMU_T3D_PMEM \
43 "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \
44 "-object memory-backend-file,id=lsa0,mem-path=%s,size=256M " \
45 "-device cxl-type3,bus=rp0,persistent-memdev=cxl-mem0,lsa=lsa0,id=pmem0 "
46
47 #define QEMU_T3D_VMEM \
48 "-object memory-backend-ram,id=cxl-mem0,size=256M " \
49 "-device cxl-type3,bus=rp0,volatile-memdev=cxl-mem0,id=mem0 "
50
51 #define QEMU_T3D_VMEM_LSA \
52 "-object memory-backend-ram,id=cxl-mem0,size=256M " \
53 "-object memory-backend-file,id=lsa0,mem-path=%s,size=256M " \
54 "-device cxl-type3,bus=rp0,volatile-memdev=cxl-mem0,lsa=lsa0,id=mem0 "
55
56 #define QEMU_2T3D \
57 "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \
58 "-object memory-backend-file,id=lsa0,mem-path=%s,size=256M " \
59 "-device cxl-type3,bus=rp0,persistent-memdev=cxl-mem0,lsa=lsa0,id=pmem0 " \
60 "-object memory-backend-file,id=cxl-mem1,mem-path=%s,size=256M " \
61 "-object memory-backend-file,id=lsa1,mem-path=%s,size=256M " \
62 "-device cxl-type3,bus=rp1,persistent-memdev=cxl-mem1,lsa=lsa1,id=pmem1 "
63
64 #define QEMU_4T3D \
65 "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \
66 "-object memory-backend-file,id=lsa0,mem-path=%s,size=256M " \
67 "-device cxl-type3,bus=rp0,persistent-memdev=cxl-mem0,lsa=lsa0,id=pmem0 " \
68 "-object memory-backend-file,id=cxl-mem1,mem-path=%s,size=256M " \
69 "-object memory-backend-file,id=lsa1,mem-path=%s,size=256M " \
70 "-device cxl-type3,bus=rp1,persistent-memdev=cxl-mem1,lsa=lsa1,id=pmem1 " \
71 "-object memory-backend-file,id=cxl-mem2,mem-path=%s,size=256M " \
72 "-object memory-backend-file,id=lsa2,mem-path=%s,size=256M " \
73 "-device cxl-type3,bus=rp2,persistent-memdev=cxl-mem2,lsa=lsa2,id=pmem2 " \
74 "-object memory-backend-file,id=cxl-mem3,mem-path=%s,size=256M " \
75 "-object memory-backend-file,id=lsa3,mem-path=%s,size=256M " \
76 "-device cxl-type3,bus=rp3,persistent-memdev=cxl-mem3,lsa=lsa3,id=pmem3 "
77
cxl_basic_hb(void)78 static void cxl_basic_hb(void)
79 {
80 qtest_start("-machine q35,cxl=on");
81 qtest_end();
82 }
83
cxl_basic_pxb(void)84 static void cxl_basic_pxb(void)
85 {
86 qtest_start("-machine q35,cxl=on -device pxb-cxl,bus=pcie.0");
87 qtest_end();
88 }
89
cxl_pxb_with_window(void)90 static void cxl_pxb_with_window(void)
91 {
92 qtest_start(QEMU_PXB_CMD);
93 qtest_end();
94 }
95
cxl_2pxb_with_window(void)96 static void cxl_2pxb_with_window(void)
97 {
98 qtest_start(QEMU_2PXB_CMD);
99 qtest_end();
100 }
101
cxl_root_port(void)102 static void cxl_root_port(void)
103 {
104 qtest_start(QEMU_PXB_CMD QEMU_RP);
105 qtest_end();
106 }
107
cxl_2root_port(void)108 static void cxl_2root_port(void)
109 {
110 qtest_start(QEMU_PXB_CMD QEMU_2RP);
111 qtest_end();
112 }
113
114 #ifdef CONFIG_POSIX
cxl_t3d_deprecated(void)115 static void cxl_t3d_deprecated(void)
116 {
117 g_autoptr(GString) cmdline = g_string_new(NULL);
118 g_autofree const char *tmpfs = NULL;
119
120 tmpfs = g_dir_make_tmp("cxl-test-XXXXXX", NULL);
121
122 g_string_printf(cmdline, QEMU_PXB_CMD QEMU_RP QEMU_T3D_DEPRECATED,
123 tmpfs, tmpfs);
124
125 qtest_start(cmdline->str);
126 qtest_end();
127 rmdir(tmpfs);
128 }
129
cxl_t3d_persistent(void)130 static void cxl_t3d_persistent(void)
131 {
132 g_autoptr(GString) cmdline = g_string_new(NULL);
133 g_autofree const char *tmpfs = NULL;
134
135 tmpfs = g_dir_make_tmp("cxl-test-XXXXXX", NULL);
136
137 g_string_printf(cmdline, QEMU_PXB_CMD QEMU_RP QEMU_T3D_PMEM,
138 tmpfs, tmpfs);
139
140 qtest_start(cmdline->str);
141 qtest_end();
142 rmdir(tmpfs);
143 }
144
cxl_t3d_volatile(void)145 static void cxl_t3d_volatile(void)
146 {
147 g_autoptr(GString) cmdline = g_string_new(NULL);
148
149 g_string_printf(cmdline, QEMU_PXB_CMD QEMU_RP QEMU_T3D_VMEM);
150
151 qtest_start(cmdline->str);
152 qtest_end();
153 }
154
cxl_t3d_volatile_lsa(void)155 static void cxl_t3d_volatile_lsa(void)
156 {
157 g_autoptr(GString) cmdline = g_string_new(NULL);
158 g_autofree const char *tmpfs = NULL;
159
160 tmpfs = g_dir_make_tmp("cxl-test-XXXXXX", NULL);
161
162 g_string_printf(cmdline, QEMU_PXB_CMD QEMU_RP QEMU_T3D_VMEM_LSA,
163 tmpfs);
164
165 qtest_start(cmdline->str);
166 qtest_end();
167 rmdir(tmpfs);
168 }
169
cxl_1pxb_2rp_2t3d(void)170 static void cxl_1pxb_2rp_2t3d(void)
171 {
172 g_autoptr(GString) cmdline = g_string_new(NULL);
173 g_autofree const char *tmpfs = NULL;
174
175 tmpfs = g_dir_make_tmp("cxl-test-XXXXXX", NULL);
176
177 g_string_printf(cmdline, QEMU_PXB_CMD QEMU_2RP QEMU_2T3D,
178 tmpfs, tmpfs, tmpfs, tmpfs);
179
180 qtest_start(cmdline->str);
181 qtest_end();
182 rmdir(tmpfs);
183 }
184
cxl_2pxb_4rp_4t3d(void)185 static void cxl_2pxb_4rp_4t3d(void)
186 {
187 g_autoptr(GString) cmdline = g_string_new(NULL);
188 g_autofree const char *tmpfs = NULL;
189
190 tmpfs = g_dir_make_tmp("cxl-test-XXXXXX", NULL);
191
192 g_string_printf(cmdline, QEMU_2PXB_CMD QEMU_4RP QEMU_4T3D,
193 tmpfs, tmpfs, tmpfs, tmpfs, tmpfs, tmpfs,
194 tmpfs, tmpfs);
195
196 qtest_start(cmdline->str);
197 qtest_end();
198 rmdir(tmpfs);
199 }
200 #endif /* CONFIG_POSIX */
201
main(int argc,char ** argv)202 int main(int argc, char **argv)
203 {
204 g_test_init(&argc, &argv, NULL);
205
206 qtest_add_func("/pci/cxl/basic_hostbridge", cxl_basic_hb);
207 qtest_add_func("/pci/cxl/basic_pxb", cxl_basic_pxb);
208 qtest_add_func("/pci/cxl/pxb_with_window", cxl_pxb_with_window);
209 qtest_add_func("/pci/cxl/pxb_x2_with_window", cxl_2pxb_with_window);
210 qtest_add_func("/pci/cxl/rp", cxl_root_port);
211 qtest_add_func("/pci/cxl/rp_x2", cxl_2root_port);
212 #ifdef CONFIG_POSIX
213 qtest_add_func("/pci/cxl/type3_device", cxl_t3d_deprecated);
214 qtest_add_func("/pci/cxl/type3_device_pmem", cxl_t3d_persistent);
215 qtest_add_func("/pci/cxl/type3_device_vmem", cxl_t3d_volatile);
216 qtest_add_func("/pci/cxl/type3_device_vmem_lsa", cxl_t3d_volatile_lsa);
217 qtest_add_func("/pci/cxl/rp_x2_type3_x2", cxl_1pxb_2rp_2t3d);
218 qtest_add_func("/pci/cxl/pxb_x2_root_port_x4_type3_x4", cxl_2pxb_4rp_4t3d);
219 #endif
220 return g_test_run();
221 }
222