xref: /openbmc/qemu/tests/qtest/cxl-test.c (revision b197ea86)
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