xref: /illumos-gate/usr/src/uts/common/io/tpm/tpm_hcall.S (revision 1e56f352c1c208679012bca47d552e127f5b1072)
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/*
37 * hcall_tpm_get(uint64_t locality, uint64_t offset, uint64_t size,
38 *     uint64_t *value)
39 */
40	ENTRY(hcall_tpm_get)
41	mov	%o3, %g1
42	mov	HV_TPM_GET, %o5
43	ta	FAST_TRAP
44	stx	%o1, [%g1]
45	retl
46	nop
47	SET_SIZE(hcall_tpm_get)
48
49/*
50 * uint64_t
51 * hcall_tpm_put(uint64_t locality, uint64_t offset, uint64_t size,
52 *     uint64_t value)
53 */
54	ENTRY(hcall_tpm_put)
55	mov	HV_TPM_PUT, %o5
56	ta	FAST_TRAP
57	retl
58	nop
59	SET_SIZE(hcall_tpm_put)
60
61#endif /* defined(sun4v) */
62