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 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 /*
  28  * Hypervisor calls used by tpm driver
  29  */
  30 
  31 #include <sys/asm_linkage.h>
  32 
  33 #if defined(sun4v)
  34 #include <sys/hypervisor_api.h>
  35 
  36 #if defined(lint) || defined(__lint)
  37 
  38 /*ARGSUSED*/
  39 uint64_t
  40 hcall_tpm_get(uint64_t locality, uint64_t offset, uint64_t size,
  41     uint64_t *value)
  42 {
  43         return (0);
  44 }
  45 
  46 /*ARGSUSED*/
  47 uint64_t
  48 hcall_tpm_put(uint64_t locality, uint64_t offset, uint64_t size,
  49     uint64_t value)
  50 {
  51         return (0);
  52 }
  53 
  54 #else  /* lint || __lint */
  55 
  56 /*
  57  * hcall_tpm_get(uint64_t locality, uint64_t offset, uint64_t size,
  58  *     uint64_t *value)
  59  */
  60         ENTRY(hcall_tpm_get)
  61         mov     %o3, %g1
  62         mov     HV_TPM_GET, %o5
  63         ta      FAST_TRAP
  64         stx     %o1, [%g1]
  65         retl
  66         nop
  67         SET_SIZE(hcall_tpm_get)
  68 
  69 /*
  70  * uint64_t
  71  * hcall_tpm_put(uint64_t locality, uint64_t offset, uint64_t size,
  72  *     uint64_t value)
  73  */
  74         ENTRY(hcall_tpm_put)
  75         mov     HV_TPM_PUT, %o5
  76         ta      FAST_TRAP
  77         retl
  78         nop
  79         SET_SIZE(hcall_tpm_put)
  80 
  81 #endif /* lint || __lint */
  82 
  83 #endif /* defined(sun4v) */