| 1 | /* $Id: alloc-r0drv-solaris.c 4071 2007-08-07 17:07:59Z vboxsync $ */
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| 2 | /** @file
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| 3 | * innotek Portable Runtime - 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 innotek GmbH
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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.virtualbox.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 as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 |
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| 19 | /*******************************************************************************
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| 20 | * Header Files *
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| 21 | *******************************************************************************/
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| 22 | #include "the-solaris-kernel.h"
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| 23 | #include <malloc.h>
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| 24 |
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| 25 | #include <iprt/alloc.h>
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| 26 | #include <iprt/assert.h>
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| 27 | #include <iprt/types.h>
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| 28 | #include "r0drv/alloc-r0drv.h"
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| 29 |
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| 30 |
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| 31 | /**
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| 32 | * OS specific allocation function.
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| 33 | */
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| 34 | PRTMEMHDR rtMemAlloc(size_t cb, uint32_t fFlags)
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| 35 | {
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| 36 | Assert(cb != sizeof(void *));
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| 37 | PRTMEMHDR pHdr;
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| 38 | if (fFlags & RTMEMHDR_FLAG_ZEROED)
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| 39 | pHdr = (PRTMEMHDR)kmem_zalloc(cb + sizeof(*pHdr), KM_NOSLEEP);
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| 40 | else
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| 41 | pHdr = (PRTMEMHDR)kmem_alloc(cb + sizeof(*pHdr), KM_NOSLEEP);
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| 42 | if (pHdr)
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| 43 | {
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| 44 | pHdr->u32Magic = RTMEMHDR_MAGIC;
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| 45 | pHdr->fFlags = fFlags;
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| 46 | pHdr->cb = cb;
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| 47 | pHdr->u32Padding= 0;
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| 48 | }
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| 49 | else
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| 50 | printf("rmMemAlloc(%#x, %#x) failed\n", cb + sizeof(*pHdr), fFlags);
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| 51 | return pHdr;
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| 52 | }
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| 53 |
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| 54 |
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| 55 | /**
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| 56 | * OS specific free function.
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| 57 | */
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| 58 | void rtMemFree(PRTMEMHDR pHdr)
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| 59 | {
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| 60 | pHdr->u32Magic += 1;
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| 61 | kmem_free(pHdr, pHdr->cb + sizeof(*pHdr));
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| 62 | }
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| 63 |
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| 64 |
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| 65 | /**
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| 66 | * Allocates physical contiguous memory (below 4GB).
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| 67 | * The allocation is page aligned and the content is undefined.
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| 68 | *
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| 69 | * @returns Pointer to the memory block. This is page aligned.
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| 70 | * @param pPhys Where to store the physical address.
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| 71 | * @param cb The allocation size in bytes. This is always
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| 72 | * rounded up to PAGE_SIZE.
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| 73 | */
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| 74 | RTR0DECL(void *) RTMemContAlloc(PRTCCPHYS pPhys, size_t cb)
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| 75 | {
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| 76 | /* Solaris currently supports allocating contiguous memory
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| 77 | * only for DMA drivers which requires passing the driver's
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| 78 | * device ID, and upper/lower DMA memory limits
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| 79 | * Currently thus disabled since RTMemContAlloc isn't really used
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| 80 | * anywhere significant yet (only in GuestAdditions which is not
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| 81 | * there for Solaris)
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| 82 | * ddi_umem_alloc doesn't allocate contiguous memory!
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| 83 | */
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| 84 | /**@todo Implement RTMemContAlloc on Solaris - there is no way around this. */
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| 85 | return NULL;
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| 86 | }
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| 87 |
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| 88 | RTR0DECL(void) RTMemContFree(void *pv, size_t cb)
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| 89 | {
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| 90 | /** @todo implement RTMemContFree on solaris, see RTMemContAlloc() for details. */
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| 91 | NOREF(pv);
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| 92 | NOREF(cb);
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| 93 | }
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