projects / OpenSPARC-T2-SAM / blame
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1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== | |
| 3 | * | |
| 4 | * Hypervisor Software File: mmu_common.s | |
| 5 | * | |
| 6 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 7 | * | |
| 8 | * - Do no alter or remove copyright notices | |
| 9 | * | |
| 10 | * - Redistribution and use of this software in source and binary forms, with | |
| 11 | * or without modification, are permitted provided that the following | |
| 12 | * conditions are met: | |
| 13 | * | |
| 14 | * - Redistribution of source code must retain the above copyright notice, | |
| 15 | * this list of conditions and the following disclaimer. | |
| 16 | * | |
| 17 | * - Redistribution in binary form must reproduce the above copyright notice, | |
| 18 | * this list of conditions and the following disclaimer in the | |
| 19 | * documentation and/or other materials provided with the distribution. | |
| 20 | * | |
| 21 | * Neither the name of Sun Microsystems, Inc. or the names of contributors | |
| 22 | * may be used to endorse or promote products derived from this software | |
| 23 | * without specific prior written permission. | |
| 24 | * | |
| 25 | * This software is provided "AS IS," without a warranty of any kind. | |
| 26 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, | |
| 27 | * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A | |
| 28 | * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN | |
| 29 | * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR | |
| 30 | * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
| 31 | * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN | |
| 32 | * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR | |
| 33 | * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE | |
| 34 | * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, | |
| 35 | * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF | |
| 36 | * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
| 37 | * | |
| 38 | * You acknowledge that this software is not designed, licensed or | |
| 39 | * intended for use in the design, construction, operation or maintenance of | |
| 40 | * any nuclear facility. | |
| 41 | * | |
| 42 | * ========== Copyright Header End ============================================ | |
| 43 | */ | |
| 44 | /* | |
| 45 | * Copyright 2007 Sun Microsystems, Inc. All rights reserved. | |
| 46 | * Use is subject to license terms. | |
| 47 | */ | |
| 48 | ||
| 49 | .ident "@(#)mmu_common.s 1.2 07/05/03 SMI" | |
| 50 | ||
| 51 | /* | |
| 52 | * Niagara-family MMU common routines | |
| 53 | */ | |
| 54 | ||
| 55 | #include <sys/asm_linkage.h> | |
| 56 | #include <hprivregs.h> | |
| 57 | #include <asi.h> | |
| 58 | #include <traps.h> | |
| 59 | #include <mmu.h> | |
| 60 | #include <sun4v/traps.h> | |
| 61 | #include <sun4v/mmu.h> | |
| 62 | ||
| 63 | #include <guest.h> | |
| 64 | #include <offsets.h> | |
| 65 | #include <debug.h> | |
| 66 | #include <util.h> | |
| 67 | ||
| 68 | /* | |
| 69 | * revec_dax - revector the current trap to the guest's DAX handler | |
| 70 | * | |
| 71 | * %g1 - fault type | |
| 72 | * %g2 - fault addr | |
| 73 | * %g3 - fault ctx | |
| 74 | */ | |
| 75 | ENTRY_NP(revec_dax) | |
| 76 | VCPU_STRUCT(%g4) | |
| 77 | ldx [%g4 + CPU_MMU_AREA], %g4 | |
| 78 | brz,pn %g4, watchdog_guest | |
| 79 | nop | |
| 80 | stx %g1, [%g4 + MMU_FAULT_AREA_DFT] | |
| 81 | stx %g2, [%g4 + MMU_FAULT_AREA_DADDR] | |
| 82 | stx %g3, [%g4 + MMU_FAULT_AREA_DCTX] | |
| 83 | REVECTOR(TT_DAX) | |
| 84 | SET_SIZE(revec_dax) | |
| 85 | ||
| 86 | /* | |
| 87 | * revec_iax - revector the current trap to the guest's IAX handler | |
| 88 | * | |
| 89 | * %g1 - fault type | |
| 90 | * %g2 - fault addr | |
| 91 | * %g3 - fault ctx | |
| 92 | */ | |
| 93 | ENTRY_NP(revec_iax) | |
| 94 | VCPU_STRUCT(%g4) | |
| 95 | ldx [%g4 + CPU_MMU_AREA], %g4 | |
| 96 | brz,pn %g4, watchdog_guest | |
| 97 | nop | |
| 98 | stx %g1, [%g4 + MMU_FAULT_AREA_IFT] | |
| 99 | stx %g2, [%g4 + MMU_FAULT_AREA_IADDR] | |
| 100 | stx %g3, [%g4 + MMU_FAULT_AREA_ICTX] | |
| 101 | REVECTOR(TT_IAX) | |
| 102 | SET_SIZE(revec_iax) |