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 "-machine q35,cxl=on " \ 12 "-device pxb-cxl,id=cxl.0,bus=pcie.0,bus_nr=52 " 13 14 #define QEMU_2PXB_CMD "-machine q35,cxl=on " \ 15 "-device pxb-cxl,id=cxl.0,bus=pcie.0,bus_nr=52 " \ 16 "-device pxb-cxl,id=cxl.1,bus=pcie.0,bus_nr=53 " 17 18 #define QEMU_RP "-device cxl-rp,id=rp0,bus=cxl.0,chassis=0,slot=0 " 19 20 /* Dual ports on first pxb */ 21 #define QEMU_2RP "-device cxl-rp,id=rp0,bus=cxl.0,chassis=0,slot=0 " \ 22 "-device cxl-rp,id=rp1,bus=cxl.0,chassis=0,slot=1 " 23 24 /* Dual ports on each of the pxb instances */ 25 #define QEMU_4RP "-device cxl-rp,id=rp0,bus=cxl.0,chassis=0,slot=0 " \ 26 "-device cxl-rp,id=rp1,bus=cxl.0,chassis=0,slot=1 " \ 27 "-device cxl-rp,id=rp2,bus=cxl.1,chassis=0,slot=2 " \ 28 "-device cxl-rp,id=rp3,bus=cxl.1,chassis=0,slot=3 " 29 30 #define QEMU_T3D "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \ 31 "-object memory-backend-file,id=lsa0,mem-path=%s,size=256M " \ 32 "-device cxl-type3,bus=rp0,memdev=cxl-mem0,lsa=lsa0,id=cxl-pmem0 " 33 34 #define QEMU_2T3D "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \ 35 "-object memory-backend-file,id=lsa0,mem-path=%s,size=256M " \ 36 "-device cxl-type3,bus=rp0,memdev=cxl-mem0,lsa=lsa0,id=cxl-pmem0 " \ 37 "-object memory-backend-file,id=cxl-mem1,mem-path=%s,size=256M " \ 38 "-object memory-backend-file,id=lsa1,mem-path=%s,size=256M " \ 39 "-device cxl-type3,bus=rp1,memdev=cxl-mem1,lsa=lsa1,id=cxl-pmem1 " 40 41 #define QEMU_4T3D "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \ 42 "-object memory-backend-file,id=lsa0,mem-path=%s,size=256M " \ 43 "-device cxl-type3,bus=rp0,memdev=cxl-mem0,lsa=lsa0,id=cxl-pmem0 " \ 44 "-object memory-backend-file,id=cxl-mem1,mem-path=%s,size=256M " \ 45 "-object memory-backend-file,id=lsa1,mem-path=%s,size=256M " \ 46 "-device cxl-type3,bus=rp1,memdev=cxl-mem1,lsa=lsa1,id=cxl-pmem1 " \ 47 "-object memory-backend-file,id=cxl-mem2,mem-path=%s,size=256M " \ 48 "-object memory-backend-file,id=lsa2,mem-path=%s,size=256M " \ 49 "-device cxl-type3,bus=rp2,memdev=cxl-mem2,lsa=lsa2,id=cxl-pmem2 " \ 50 "-object memory-backend-file,id=cxl-mem3,mem-path=%s,size=256M " \ 51 "-object memory-backend-file,id=lsa3,mem-path=%s,size=256M " \ 52 "-device cxl-type3,bus=rp3,memdev=cxl-mem3,lsa=lsa3,id=cxl-pmem3 " 53 54 static void cxl_basic_hb(void) 55 { 56 qtest_start("-machine q35,cxl=on"); 57 qtest_end(); 58 } 59 60 static void cxl_basic_pxb(void) 61 { 62 qtest_start("-machine q35,cxl=on -device pxb-cxl,bus=pcie.0"); 63 qtest_end(); 64 } 65 66 static void cxl_pxb_with_window(void) 67 { 68 qtest_start(QEMU_PXB_CMD); 69 qtest_end(); 70 } 71 72 static void cxl_2pxb_with_window(void) 73 { 74 qtest_start(QEMU_2PXB_CMD); 75 qtest_end(); 76 } 77 78 static void cxl_root_port(void) 79 { 80 qtest_start(QEMU_PXB_CMD QEMU_RP); 81 qtest_end(); 82 } 83 84 static void cxl_2root_port(void) 85 { 86 qtest_start(QEMU_PXB_CMD QEMU_2RP); 87 qtest_end(); 88 } 89 90 static void cxl_t3d(void) 91 { 92 g_autoptr(GString) cmdline = g_string_new(NULL); 93 char template[] = "/tmp/cxl-test-XXXXXX"; 94 const char *tmpfs; 95 96 tmpfs = mkdtemp(template); 97 98 g_string_printf(cmdline, QEMU_PXB_CMD QEMU_RP QEMU_T3D, tmpfs, tmpfs); 99 100 qtest_start(cmdline->str); 101 qtest_end(); 102 } 103 104 static void cxl_1pxb_2rp_2t3d(void) 105 { 106 g_autoptr(GString) cmdline = g_string_new(NULL); 107 char template[] = "/tmp/cxl-test-XXXXXX"; 108 const char *tmpfs; 109 110 tmpfs = mkdtemp(template); 111 112 g_string_printf(cmdline, QEMU_PXB_CMD QEMU_2RP QEMU_2T3D, 113 tmpfs, tmpfs, tmpfs, tmpfs); 114 115 qtest_start(cmdline->str); 116 qtest_end(); 117 } 118 119 static void cxl_2pxb_4rp_4t3d(void) 120 { 121 g_autoptr(GString) cmdline = g_string_new(NULL); 122 char template[] = "/tmp/cxl-test-XXXXXX"; 123 const char *tmpfs; 124 125 tmpfs = mkdtemp(template); 126 127 g_string_printf(cmdline, QEMU_2PXB_CMD QEMU_4RP QEMU_4T3D, 128 tmpfs, tmpfs, tmpfs, tmpfs, tmpfs, tmpfs, 129 tmpfs, tmpfs); 130 131 qtest_start(cmdline->str); 132 qtest_end(); 133 } 134 135 int main(int argc, char **argv) 136 { 137 g_test_init(&argc, &argv, NULL); 138 139 qtest_add_func("/pci/cxl/basic_hostbridge", cxl_basic_hb); 140 qtest_add_func("/pci/cxl/basic_pxb", cxl_basic_pxb); 141 qtest_add_func("/pci/cxl/pxb_with_window", cxl_pxb_with_window); 142 qtest_add_func("/pci/cxl/pxb_x2_with_window", cxl_2pxb_with_window); 143 qtest_add_func("/pci/cxl/rp", cxl_root_port); 144 qtest_add_func("/pci/cxl/rp_x2", cxl_2root_port); 145 qtest_add_func("/pci/cxl/type3_device", cxl_t3d); 146 qtest_add_func("/pci/cxl/rp_x2_type3_x2", cxl_1pxb_2rp_2t3d); 147 qtest_add_func("/pci/cxl/pxb_x2_root_port_x4_type3_x4", cxl_2pxb_4rp_4t3d); 148 return g_test_run(); 149 } 150