1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Automatically generated functions to read TDX global metadata. 4 * 5 * This file doesn't compile on its own as it lacks of inclusion 6 * of SEAMCALL wrapper primitive which reads global metadata. 7 * Include this file to other C file instead. 8 */ 9 10 static int get_tdx_sys_info_features(struct tdx_sys_info_features *sysinfo_features) 11 { 12 int ret = 0; 13 u64 val; 14 15 if (!ret && !(ret = read_sys_metadata_field(0x0A00000300000008, &val))) 16 sysinfo_features->tdx_features0 = val; 17 18 return ret; 19 } 20 21 static int get_tdx_sys_info_tdmr(struct tdx_sys_info_tdmr *sysinfo_tdmr) 22 { 23 int ret = 0; 24 u64 val; 25 26 if (!ret && !(ret = read_sys_metadata_field(0x9100000100000008, &val))) 27 sysinfo_tdmr->max_tdmrs = val; 28 if (!ret && !(ret = read_sys_metadata_field(0x9100000100000009, &val))) 29 sysinfo_tdmr->max_reserved_per_tdmr = val; 30 if (!ret && !(ret = read_sys_metadata_field(0x9100000100000010, &val))) 31 sysinfo_tdmr->pamt_4k_entry_size = val; 32 if (!ret && !(ret = read_sys_metadata_field(0x9100000100000011, &val))) 33 sysinfo_tdmr->pamt_2m_entry_size = val; 34 if (!ret && !(ret = read_sys_metadata_field(0x9100000100000012, &val))) 35 sysinfo_tdmr->pamt_1g_entry_size = val; 36 37 return ret; 38 } 39 40 static int get_tdx_sys_info_td_ctrl(struct tdx_sys_info_td_ctrl *sysinfo_td_ctrl) 41 { 42 int ret = 0; 43 u64 val; 44 45 if (!ret && !(ret = read_sys_metadata_field(0x9800000100000000, &val))) 46 sysinfo_td_ctrl->tdr_base_size = val; 47 if (!ret && !(ret = read_sys_metadata_field(0x9800000100000100, &val))) 48 sysinfo_td_ctrl->tdcs_base_size = val; 49 if (!ret && !(ret = read_sys_metadata_field(0x9800000100000200, &val))) 50 sysinfo_td_ctrl->tdvps_base_size = val; 51 52 return ret; 53 } 54 55 static int get_tdx_sys_info_td_conf(struct tdx_sys_info_td_conf *sysinfo_td_conf) 56 { 57 int ret = 0; 58 u64 val; 59 int i, j; 60 61 if (!ret && !(ret = read_sys_metadata_field(0x1900000300000000, &val))) 62 sysinfo_td_conf->attributes_fixed0 = val; 63 if (!ret && !(ret = read_sys_metadata_field(0x1900000300000001, &val))) 64 sysinfo_td_conf->attributes_fixed1 = val; 65 if (!ret && !(ret = read_sys_metadata_field(0x1900000300000002, &val))) 66 sysinfo_td_conf->xfam_fixed0 = val; 67 if (!ret && !(ret = read_sys_metadata_field(0x1900000300000003, &val))) 68 sysinfo_td_conf->xfam_fixed1 = val; 69 if (!ret && !(ret = read_sys_metadata_field(0x9900000100000004, &val))) 70 sysinfo_td_conf->num_cpuid_config = val; 71 if (!ret && !(ret = read_sys_metadata_field(0x9900000100000008, &val))) 72 sysinfo_td_conf->max_vcpus_per_td = val; 73 if (sysinfo_td_conf->num_cpuid_config > ARRAY_SIZE(sysinfo_td_conf->cpuid_config_leaves)) 74 return -EINVAL; 75 for (i = 0; i < sysinfo_td_conf->num_cpuid_config; i++) 76 if (!ret && !(ret = read_sys_metadata_field(0x9900000300000400 + i, &val))) 77 sysinfo_td_conf->cpuid_config_leaves[i] = val; 78 if (sysinfo_td_conf->num_cpuid_config > ARRAY_SIZE(sysinfo_td_conf->cpuid_config_values)) 79 return -EINVAL; 80 for (i = 0; i < sysinfo_td_conf->num_cpuid_config; i++) 81 for (j = 0; j < 2; j++) 82 if (!ret && !(ret = read_sys_metadata_field(0x9900000300000500 + i * 2 + j, &val))) 83 sysinfo_td_conf->cpuid_config_values[i][j] = val; 84 85 return ret; 86 } 87 88 static int get_tdx_sys_info(struct tdx_sys_info *sysinfo) 89 { 90 int ret = 0; 91 92 ret = ret ?: get_tdx_sys_info_features(&sysinfo->features); 93 ret = ret ?: get_tdx_sys_info_tdmr(&sysinfo->tdmr); 94 ret = ret ?: get_tdx_sys_info_td_ctrl(&sysinfo->td_ctrl); 95 ret = ret ?: get_tdx_sys_info_td_conf(&sysinfo->td_conf); 96 97 return ret; 98 } 99