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      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 2007 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 /*
     29  * Hypervisor calls called by ncp driver.
     30  */
     31 
     32 #include <sys/asm_linkage.h>
     33 #include <sys/hypervisor_api.h>
     34 #include <sys/n2rng.h>
     35 
     36 #if defined(lint) || defined(__lint)
     37 
     38 /*ARGSUSED*/
     39 uint64_t
     40 hv_rng_get_diag_control()
     41 { return (0); }
     42 
     43 /*ARGSUSED*/
     44 uint64_t
     45 hv_rng_ctl_read(uint64_t ctlregsptr_ra, uint64_t *rstate, uint64_t *tdelta)
     46 { return (0); }
     47 
     48 /*ARGSUSED*/
     49 uint64_t
     50 hv_rng_ctl_read_v2(uint64_t ctlregsptr_ra, uint64_t rngid, uint64_t *rstate,
     51 		uint64_t *tdelta, uint64_t *wdelta, uint64_t *wstate)
     52 { return (0); }
     53 
     54 /*ARGSUSED*/
     55 uint64_t
     56 hv_rng_ctl_write(uint64_t ctlregsptr_ra, uint64_t nstate, uint64_t wtimeout,
     57 		uint64_t *tdelta)
     58 { return (0); }
     59 
     60 /*ARGSUSED*/
     61 uint64_t
     62 hv_rng_ctl_write_v2(uint64_t ctlregsptr_ra, uint64_t nstate, uint64_t wtimeout,
     63 		uint64_t rngid)
     64 { return (0); }
     65 
     66 /*ARGSUSED*/
     67 uint64_t
     68 hv_rng_data_read_diag(uint64_t buffer_ra, uint64_t sz, uint64_t *tdelta)
     69 { return (0); }
     70 
     71 /*ARGSUSED*/
     72 uint64_t
     73 hv_rng_data_read_diag_v2(uint64_t buffer_ra, uint64_t sz, uint64_t rngid,
     74 		uint64_t *tdelta)
     75 { return (0); }
     76 
     77 /*ARGSUSED*/
     78 uint64_t
     79 hv_rng_data_read(uint64_t buffer_ra, uint64_t *tdelta)
     80 { return (0); }
     81 
     82 #else	/* lint || __lint */
     83 
     84 	/*
     85 	 * hv_rng_get_diag_control()
     86 	 */
     87 	ENTRY(hv_rng_get_diag_control)
     88 	mov	HV_RNG_GET_DIAG_CONTROL, %o5
     89 	ta	FAST_TRAP
     90 	retl
     91 	nop
     92 	SET_SIZE(hv_rng_get_diag_control)
     93 
     94 	/*
     95 	 * hv_rng_ctl_read(uint64_t ctlregsptr_ra, uint64_t *rstate,
     96 	 *         uint64_t *tdelta)
     97 	 */
     98 	ENTRY(hv_rng_ctl_read)
     99 	mov	%o1, %o3
    100 	mov	%o2, %o4
    101 	mov	HV_RNG_CTL_READ, %o5
    102 	ta	FAST_TRAP
    103 	stx	%o1, [%o3]
    104 	retl
    105 	stx	%o2, [%o4]
    106 	SET_SIZE(hv_rng_ctl_read)
    107 
    108 	/*
    109 	 * hv_rng_ctl_read_v2(uint64_t ctlregsptr_ra, uint64_t rngid,
    110 	 *         uint64_t *rstate, uint64_t *tdelta, uint64_t *wdelta,
    111 	 *         uint64_t *wstatus)
    112 	 */
    113 	ENTRY(hv_rng_ctl_read_v2)
    114         save    %sp, -SA(MINFRAME64), %sp
    115         mov     %i0, %o0
    116         mov     %i1, %o1
    117         mov     HV_RNG_CTL_READ, %o5
    118         ta      FAST_TRAP
    119         mov     %o0, %i0        ! trap status
    120         stx     %o1, [%i2]      ! save status
    121         stx     %o2, [%i3]      ! save delta
    122         stx     %o3, [%i4]      ! save watchdog
    123         stx     %o4, [%i5]      ! save write status
    124         ret
    125         restore
    126 	SET_SIZE(hv_rng_ctl_read_v2)
    127 
    128 	/*
    129 	 * hv_rng_ctl_write(uint64_t ctlregsptr_ra, uint64_t nstate,
    130 	 *         uint64_t wtimeout, uint64_t *tdelta)
    131 	 */
    132 	ENTRY(hv_rng_ctl_write)
    133 	mov	%o3, %o4
    134 	mov	HV_RNG_CTL_WRITE, %o5
    135 	ta	FAST_TRAP
    136 	retl
    137 	stx	%o1, [%o4]
    138 	SET_SIZE(hv_rng_ctl_write)
    139 
    140 	/*
    141 	 * hv_rng_ctl_write_v2(uint64_t ctlregsptr_ra, uint64_t nstate,
    142 	 *         uint64_t wtimeout, uint64_t rngid)
    143 	 */
    144 	ENTRY(hv_rng_ctl_write_v2)
    145 	mov	HV_RNG_CTL_WRITE, %o5
    146 	ta	FAST_TRAP
    147 	retl
    148 	nop
    149 	SET_SIZE(hv_rng_ctl_write_v2)
    150 
    151 	/*
    152 	 * hv_rng_data_read_diag(uint64_t buffer_ra, uint64_t sz,
    153 	 *         uint64_t *tdelta)
    154 	 */
    155 	ENTRY(hv_rng_data_read_diag)
    156 	mov	%o2, %o4
    157 	mov	HV_RNG_DATA_READ_DIAG, %o5
    158 	ta	FAST_TRAP
    159 	retl
    160 	stx	%o1, [%o4]
    161 	SET_SIZE(hv_rng_data_read_diag)
    162 
    163 	/*
    164 	 * hv_rng_data_read_diag_v2(uint64_t buffer_ra, uint64_t sz,
    165 	 *         uint64_t rngid, uint64_t *tdelta)
    166 	 */
    167 	ENTRY(hv_rng_data_read_diag_v2)
    168 	mov	%o3, %o4
    169 	mov	HV_RNG_DATA_READ_DIAG, %o5
    170 	ta	FAST_TRAP
    171 	retl
    172 	stx	%o1, [%o4]
    173 	SET_SIZE(hv_rng_data_read_diag_v2)
    174 
    175 	/*
    176 	 * hv_rng_data_read(uint64_t buffer_ra, uint64_t *tdelta)
    177 	 */
    178 	ENTRY(hv_rng_data_read)
    179 	mov	%o1, %o4
    180 	mov	HV_RNG_DATA_READ, %o5
    181 	ta	FAST_TRAP
    182 	retl
    183 	stx	%o1, [%o4]
    184 	SET_SIZE(hv_rng_data_read)
    185 
    186 #endif	/* lint || __lint */
    187