1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/promif.h> 29 #include <sys/promimpl.h> 30 #include <sys/hypervisor_api.h> 31 32 /* 33 * This interface allows the client to negotiate a major/minor 34 * version number for the specified sun4v API group. 35 */ 36 uint64_t 37 prom_set_sun4v_api_version(uint64_t api_group, uint64_t major, uint64_t minor, 38 uint64_t *supported_minor) 39 { 40 cell_t ci[8]; 41 42 if (prom_test("SUNW,set-sun4v-api-version") != 0) 43 return (H_EBADTRAP); 44 45 ci[0] = p1275_ptr2cell("SUNW,set-sun4v-api-version"); /* Service */ 46 ci[1] = (cell_t)3; /* #argument cells */ 47 ci[2] = (cell_t)2; /* #result cells */ 48 ci[3] = (cell_t)api_group; /* Arg1: api_group */ 49 ci[4] = (cell_t)major; /* Arg2: major */ 50 ci[5] = (cell_t)minor; /* Arg3: minor */ 51 ci[6] = (cell_t)-1; /* Res1: status */ 52 ci[7] = (cell_t)-1; /* Res2: Supported minor */ 53 54 promif_preprom(); 55 (void) p1275_cif_handler(&ci); 56 promif_postprom(); 57 58 *supported_minor = (uint64_t)(ci[7]); 59 return ((uint64_t)(ci[6])); 60 } 61 62 /* 63 * This interface allows the client to get the currently negotiated 64 * major/minor version number associated with the specified sun4v 65 * API group. 66 */ 67 uint64_t 68 prom_get_sun4v_api_version(uint64_t api_group, uint64_t *major, uint64_t *minor) 69 { 70 cell_t ci[7]; 71 72 if (prom_test("SUNW,get-sun4v-api-version") != 0) 73 return (H_EBADTRAP); 74 75 ci[0] = p1275_ptr2cell("SUNW,get-sun4v-api-version"); /* Service */ 76 ci[1] = (cell_t)1; /* #argument cells */ 77 ci[2] = (cell_t)3; /* #result cells */ 78 ci[3] = (cell_t)api_group; /* Arg1: api_group */ 79 ci[4] = (cell_t)-1; /* Res1: status */ 80 ci[5] = (cell_t)-1; /* Res2: major number */ 81 ci[6] = (cell_t)-1; /* Res3: minor number */ 82 83 promif_preprom(); 84 (void) p1275_cif_handler(&ci); 85 promif_postprom(); 86 87 *major = (uint64_t)(ci[5]); 88 *minor = (uint64_t)(ci[6]); 89 return ((uint64_t)(ci[4])); 90 } 91