| 1 | /* $Id: alloc-r0drv-solaris.c 32674 2010-09-21 16:51:50Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Memory Allocation, Ring-0 Driver, Solaris.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.alldomusa.eu.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*******************************************************************************
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| 29 | * Header Files *
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| 30 | *******************************************************************************/
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| 31 | #include "../the-solaris-kernel.h"
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| 32 | #include "internal/iprt.h"
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| 33 | #include <iprt/mem.h>
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| 34 |
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| 35 | #include <iprt/assert.h>
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| 36 | #include <iprt/log.h>
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| 37 | #include <iprt/param.h>
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| 38 | #include <iprt/thread.h>
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| 39 | #include "r0drv/alloc-r0drv.h"
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| 40 |
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| 41 |
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| 42 |
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| 43 | /**
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| 44 | * OS specific allocation function.
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| 45 | */
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| 46 | PRTMEMHDR rtR0MemAlloc(size_t cb, uint32_t fFlags)
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| 47 | {
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| 48 | size_t cbAllocated = cb;
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| 49 | PRTMEMHDR pHdr;
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| 50 |
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| 51 | #ifdef RT_ARCH_AMD64
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| 52 | if (fFlags & RTMEMHDR_FLAG_EXEC)
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| 53 | {
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| 54 | AssertReturn(!(fFlags & RTMEMHDR_FLAG_ANY_CTX), NULL);
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| 55 | cbAllocated = RT_ALIGN_Z(cb + sizeof(*pHdr), PAGE_SIZE) - sizeof(*pHdr);
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| 56 | pHdr = (PRTMEMHDR)vbi_text_alloc(cbAllocated + sizeof(*pHdr));
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| 57 | }
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| 58 | else
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| 59 | #endif
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| 60 | {
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| 61 | unsigned fKmFlags = fFlags & RTMEMHDR_FLAG_ALLOC_ANY_CTX ? KM_NOSLEEP : KM_SLEEP;
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| 62 | if (fFlags & RTMEMHDR_FLAG_ZEROED)
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| 63 | pHdr = (PRTMEMHDR)kmem_zalloc(cb + sizeof(*pHdr), fKmFlags);
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| 64 | else
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| 65 | pHdr = (PRTMEMHDR)kmem_alloc(cb + sizeof(*pHdr), fKmFlags);
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| 66 | }
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| 67 | if (pHdr)
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| 68 | {
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| 69 | pHdr->u32Magic = RTMEMHDR_MAGIC;
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| 70 | pHdr->fFlags = fFlags;
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| 71 | pHdr->cb = cbAllocated;
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| 72 | pHdr->cbReq = cb;
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| 73 | }
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| 74 | else
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| 75 | LogRel(("rtMemAlloc(%u, %#x) failed\n", (unsigned)cb + sizeof(*pHdr), fFlags));
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| 76 | return pHdr;
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| 77 | }
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| 78 |
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| 79 |
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| 80 | /**
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| 81 | * OS specific free function.
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| 82 | */
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| 83 | void rtR0MemFree(PRTMEMHDR pHdr)
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| 84 | {
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| 85 | pHdr->u32Magic += 1;
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| 86 | #ifdef RT_ARCH_AMD64
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| 87 | if (pHdr->fFlags & RTMEMHDR_FLAG_EXEC)
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| 88 | vbi_text_free(pHdr, pHdr->cb + sizeof(*pHdr));
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| 89 | else
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| 90 | #endif
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| 91 | kmem_free(pHdr, pHdr->cb + sizeof(*pHdr));
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| 92 | }
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| 93 |
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| 94 |
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| 95 | RTR0DECL(void *) RTMemContAlloc(PRTCCPHYS pPhys, size_t cb)
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| 96 | {
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| 97 | AssertPtrReturn(pPhys, NULL);
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| 98 | AssertReturn(cb > 0, NULL);
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| 99 | RT_ASSERT_PREEMPTIBLE();
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| 100 |
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| 101 | /* Allocate physically contiguous (< 4GB) page-aligned memory. */
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| 102 | uint64_t physAddr = _4G -1;
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| 103 | caddr_t virtAddr = vbi_contig_alloc(&physAddr, cb);
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| 104 | if (virtAddr == NULL)
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| 105 | {
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| 106 | LogRel(("vbi_contig_alloc failed to allocate %u bytes\n", cb));
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| 107 | return NULL;
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| 108 | }
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| 109 |
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| 110 | Assert(physAddr < _4G);
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| 111 | *pPhys = physAddr;
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| 112 | return virtAddr;
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| 113 | }
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| 114 |
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| 115 |
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| 116 | RTR0DECL(void) RTMemContFree(void *pv, size_t cb)
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| 117 | {
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| 118 | RT_ASSERT_PREEMPTIBLE();
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| 119 | if (pv)
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| 120 | vbi_contig_free(pv, cb);
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| 121 | }
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| 122 |
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