| 1 | \ ========== Copyright Header Begin ========================================== |
| 2 | \ |
| 3 | \ Hypervisor Software File: reentry-table.fth |
| 4 | \ |
| 5 | \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 6 | \ |
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| 9 | \ - Redistribution and use of this software in source and binary forms, with |
| 10 | \ or without modification, are permitted provided that the following |
| 11 | \ conditions are met: |
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| 13 | \ - Redistribution of source code must retain the above copyright notice, |
| 14 | \ this list of conditions and the following disclaimer. |
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| 16 | \ - Redistribution in binary form must reproduce the above copyright notice, |
| 17 | \ this list of conditions and the following disclaimer in the |
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| 21 | \ may be used to endorse or promote products derived from this software |
| 22 | \ without specific prior written permission. |
| 23 | \ |
| 24 | \ This software is provided "AS IS," without a warranty of any kind. |
| 25 | \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, |
| 26 | \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A |
| 27 | \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN |
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| 38 | \ intended for use in the design, construction, operation or maintenance of |
| 39 | \ any nuclear facility. |
| 40 | \ |
| 41 | \ ========== Copyright Header End ============================================ |
| 42 | id: @(#)reentry-table.fth 1.8 06/02/16 |
| 43 | purpose: |
| 44 | copyright: Copyright 2006 Sun Microsystems, Inc. All Rights Reserved |
| 45 | copyright: Use is subject to license terms. |
| 46 | |
| 47 | headerless |
| 48 | |
| 49 | \ the Reentry Eligibility Table is an array of 8 byte words |
| 50 | \ indexed by CPU ID. This table needs to be created at |
| 51 | \ compile time since POST expects the OBP dictionary entry be |
| 52 | \ locked in I-TLB. See FWARC/2000/022 for details. |
| 53 | max-mondo-target# /x * constant /reentry-flag-table |
| 54 | /x (align) here /reentry-flag-table allot |
| 55 | dup /reentry-flag-table erase |
| 56 | origin- ROMbase + constant reentry-flag-table |
| 57 | |
| 58 | \ mark the given CPU as eligible for reset reentry |
| 59 | : enable-reentry ( mid -- ) |
| 60 | dup 0 max-mondo-target# within if ( mid ) |
| 61 | /x * reentry-flag-table + true swap x! ( ) |
| 62 | else ( mid ) |
| 63 | drop ( ) |
| 64 | then ( ) |
| 65 | ; |
| 66 | |
| 67 | \ mark the given CPU as ineligible for reset reentry |
| 68 | : disable-reentry ( mid -- ) |
| 69 | dup 0 max-mondo-target# within if ( mid ) |
| 70 | /x * reentry-flag-table + false swap x! ( ) |
| 71 | else ( mid ) |
| 72 | drop ( ) |
| 73 | then ( ) |
| 74 | ; |
| 75 | |
| 76 | stand-init: Enable Reset Reentry Table |
| 77 | \ slave CPUs will enable reentry for themselves |
| 78 | mid@ enable-reentry |
| 79 | reentry-flag-table ROMbase ! |
| 80 | ; |