kvm/svm/sev.c

80 	int ret, error = 0;
95 	ret = sev_guest_df_flush(&error);
99 	if (ret)
100 		pr_err("SEV: DF_FLUSH failed, ret=%d, error=%#x\n", ret, error);
102 	return ret;
156 	int ret;
163 	ret = sev_misc_cg_try_charge(sev);
164 	if (ret) {
167 		return ret;
180 		ret = -EBUSY;
194 	return ret;
261 	int ret;
291 	ret = sev_asid_new(sev);
292 	if (ret)
296 	ret = sev_platform_init(&init_args);
297 	if (ret)
316 	return ret;
364 	int ret;
369 	ret = sev_guest_activate(&activate, error);
371 	return ret;
377 	int ret;
383 	ret = sev_issue_cmd_external_user(f.file, id, data, error);
386 	return ret;
403 	int ret;
427 			ret = PTR_ERR(session_blob);
439 	ret = __sev_issue_cmd(argp->sev_fd, SEV_CMD_LAUNCH_START, &start, error);
440 	if (ret)
444 	ret = sev_bind_asid(kvm, start.handle, error);
445 	if (ret) {
454 		ret = -EFAULT;
465 	return ret;
478 	int ret;
514 		ret = -ENOMEM;
528 	return ERR_PTR(ret);
586 	int ret;
628 		ret = sev_issue_cmd(kvm, SEV_CMD_LAUNCH_UPDATE_DATA, &data, &argp->error);
629 		if (ret)
644 	return ret;
747 	int ret;
755 	ret = sev_es_sync_vmsa(svm);
756 	if (ret)
757 		return ret;
770 	ret = sev_issue_cmd(kvm, SEV_CMD_LAUNCH_UPDATE_VMSA, &vmsa, error);
771 	if (ret)
772 	  return ret;
789 	int ret;
795 		ret = mutex_lock_killable(&vcpu->mutex);
796 		if (ret)
797 			return ret;
799 		ret = __sev_launch_update_vmsa(kvm, vcpu, &argp->error);
802 		if (ret)
803 			return ret;
817 	int ret;
846 	ret = sev_issue_cmd(kvm, SEV_CMD_LAUNCH_MEASURE, &data, &argp->error);
854 	if (ret)
859 			ret = -EFAULT;
865 		ret = -EFAULT;
868 	return ret;
888 	int ret;
896 	ret = sev_issue_cmd(kvm, SEV_CMD_GUEST_STATUS, &data, &argp->error);
897 	if (ret)
898 		return ret;
905 		ret = -EFAULT;
907 	return ret;
950 	int ret, offset;
963 	ret = __sev_dbg_decrypt(kvm, paddr, dst_paddr, size, err);
964 	if (ret)
970 			ret = -EFAULT;
977 	return ret;
988 	int ret, len = size;
1015 			ret = -ENOMEM;
1019 		ret = __sev_dbg_decrypt(kvm, dst_paddr,
1021 		if (ret)
1036 				ret = -EFAULT;
1046 	ret = __sev_issue_dbg_cmd(kvm, paddr, dst_paddr, len, error, true);
1053 	return ret;
1064 	int ret;
1113 			ret = __sev_dbg_decrypt_user(kvm,
1119 			ret = __sev_dbg_encrypt_user(kvm,
1129 		if (ret)
1137 	return ret;
1148 	int ret, offset;
1171 		ret = -EINVAL;
1183 		ret = PTR_ERR(blob);
1192 		ret = PTR_ERR(hdr);
1199 	ret = sev_issue_cmd(kvm, SEV_CMD_LAUNCH_UPDATE_SECRET, &data, &argp->error);
1212 	return ret;
1223 	int ret;
1252 	ret = sev_issue_cmd(kvm, SEV_CMD_ATTESTATION_REPORT, &data, &argp->error);
1259 	if (ret)
1264 			ret = -EFAULT;
1270 		ret = -EFAULT;
1273 	return ret;
1283 	int ret;
1287 	ret = sev_issue_cmd(kvm, SEV_CMD_SEND_START, &data, &argp->error);
1292 		ret = -EFAULT;
1294 	return ret;
1304 	int ret;
1332 		ret = PTR_ERR(pdh_cert);
1339 		ret = PTR_ERR(plat_certs);
1346 		ret = PTR_ERR(amd_certs);
1362 	ret = sev_issue_cmd(kvm, SEV_CMD_SEND_START, &data, &argp->error);
1364 	if (!ret && copy_to_user(u64_to_user_ptr(params.session_uaddr),
1366 		ret = -EFAULT;
1374 		ret = -EFAULT;
1384 	return ret;
1394 	int ret;
1398 	ret = sev_issue_cmd(kvm, SEV_CMD_SEND_UPDATE_DATA, &data, &argp->error);
1405 		ret = -EFAULT;
1407 	return ret;
1418 	int ret, offset;
1447 	ret = -ENOMEM;
1468 	ret = sev_issue_cmd(kvm, SEV_CMD_SEND_UPDATE_DATA, &data, &argp->error);
1470 	if (ret)
1476 		ret = -EFAULT;
1483 		ret = -EFAULT;
1492 	return ret;
1527 	int ret;
1549 		ret = PTR_ERR(session_data);
1562 	ret = __sev_issue_cmd(argp->sev_fd, SEV_CMD_RECEIVE_START, &start,
1564 	if (ret)
1568 	ret = sev_bind_asid(kvm, start.handle, error);
1569 	if (ret) {
1577 		ret = -EFAULT;
1590 	return ret;
1601 	int ret, offset;
1626 		ret = PTR_ERR(trans);
1640 		ret = PTR_ERR(guest_page);
1657 	ret = sev_issue_cmd(kvm, SEV_CMD_RECEIVE_UPDATE_DATA, &data,
1667 	return ret;
1914 	int ret;
1920 		ret = -EBADF;
1925 	ret = sev_lock_two_vms(kvm, source_kvm);
1926 	if (ret)
1931 		ret = -EINVAL;
1940 		ret = sev_misc_cg_try_charge(dst_sev);
1941 		if (ret)
1946 	ret = sev_lock_vcpus_for_migration(kvm, SEV_MIGRATION_SOURCE);
1947 	if (ret)
1949 	ret = sev_lock_vcpus_for_migration(source_kvm, SEV_MIGRATION_TARGET);
1950 	if (ret)
1953 	ret = sev_check_source_vcpus(kvm, source_kvm);
1954 	if (ret)
1960 	ret = 0;
1976 	return ret;
2099 	int ret = 0;
2118 		ret = PTR_ERR(region->pages);
2139 	return ret;
2143 	return ret;
2174 	int ret;
2183 		ret = -ENOTTY;
2189 		ret = -EINVAL;
2207 	return ret;
2215 	int ret;
2221 		ret = -EBADF;
2226 	ret = sev_lock_two_vms(kvm, source_kvm);
2227 	if (ret)
2238 		ret = -EINVAL;
2261 	ret = 0;
2273 	return ret;
2924 	int ret = 1;
2948 		ret = svm_invoke_exit_handler(vcpu, SVM_EXIT_CPUID);
2949 		if (!ret) {
2977 		ret = kvm_emulate_ap_reset_hold(&svm->vcpu);
3022 					    control->ghcb_gpa, ret);
3024 	return ret;
3032 	int ret;
3060 	ret = sev_es_validate_vmgexit(svm);
3061 	if (ret)
3062 		return ret;
3070 		ret = setup_vmgexit_scratch(svm, true, control->exit_info_2);
3071 		if (ret)
3074 		ret = kvm_sev_es_mmio_read(vcpu,
3080 		ret = setup_vmgexit_scratch(svm, false, control->exit_info_2);
3081 		if (ret)
3084 		ret = kvm_sev_es_mmio_write(vcpu,
3093 		ret = 1;
3097 		ret = kvm_emulate_ap_reset_hold(vcpu);
3118 		ret = 1;
3124 		ret = 1;
3138 		ret = -EINVAL;
3141 		ret = svm_invoke_exit_handler(vcpu, exit_code);
3144 	return ret;