tests/qtest/cxl-test.c

   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
  78 static void cxl_basic_hb(void)
  79 {
  80     qtest_start("-machine q35,cxl=on");
  81     qtest_end();
  82 }
  83
  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
  90 static void cxl_pxb_with_window(void)
  91 {
  92     qtest_start(QEMU_PXB_CMD);
  93     qtest_end();
  94 }
  95
  96 static void cxl_2pxb_with_window(void)
  97 {
  98     qtest_start(QEMU_2PXB_CMD);
  99     qtest_end();
 100 }
 101
 102 static void cxl_root_port(void)
 103 {
 104     qtest_start(QEMU_PXB_CMD QEMU_RP);
 105     qtest_end();
 106 }
 107
 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
 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
 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
 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
 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
 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
 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
 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 }