solaris/vbi/alloc-r0drv-solaris.c

	alloc-r0drv-solaris.c revision 730ec694931a669c87102e047d453d14dd3917e0
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync/* $Id$ */
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync/** @file
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * IPRT - Memory Allocation, Ring-0 Driver, Solaris.
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync */
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync/*
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * Copyright (C) 2006-2007 Sun Microsystems, Inc.
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync *
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * available from http://www.virtualbox.org. This file is free software;
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * you can redistribute it and/or modify it under the terms of the GNU
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * General Public License (GPL) as published by the Free Software
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync *
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * The contents of this file may alternatively be used under the terms
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * of the Common Development and Distribution License Version 1.0
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * VirtualBox OSE distribution, in which case the provisions of the
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * CDDL are applicable instead of those of the GPL.
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync *
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * You may elect to license modified versions of this file under the
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * terms and conditions of either the GPL or the CDDL or both.
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync *
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * additional information or have any questions.
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync */
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync/*******************************************************************************
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync*   Header Files                                                               *
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync*******************************************************************************/
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#include "../the-solaris-kernel.h"
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#include "internal/iprt.h"
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#include <iprt/mem.h>
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#include <iprt/assert.h>
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#include <iprt/log.h>
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#include <iprt/param.h>
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#include <iprt/thread.h>
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#include "r0drv/alloc-r0drv.h"
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync/**
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * OS specific allocation function.
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync */
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsyncPRTMEMHDR rtR0MemAlloc(size_t cb, uint32_t fFlags)
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync{
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    size_t cbAllocated = cb;
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    PRTMEMHDR pHdr;
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#ifdef RT_ARCH_AMD64
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    if (fFlags & RTMEMHDR_FLAG_EXEC)
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    {
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        cbAllocated = RT_ALIGN_Z(cb + sizeof(*pHdr), PAGE_SIZE) - sizeof(*pHdr);
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        pHdr = (PRTMEMHDR)vbi_text_alloc(cbAllocated + sizeof(*pHdr));
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    }
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    else
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#endif
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    if (fFlags & RTMEMHDR_FLAG_ZEROED)
558469ae1e17102c9ee2f2ece90aa7dc5137e0ccvboxsync        pHdr = (PRTMEMHDR)kmem_zalloc(cb + sizeof(*pHdr), KM_SLEEP);
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    else
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        pHdr = (PRTMEMHDR)kmem_alloc(cb + sizeof(*pHdr), KM_SLEEP);
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    if (pHdr)
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    {
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        pHdr->u32Magic  = RTMEMHDR_MAGIC;
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        pHdr->fFlags    = fFlags;
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        pHdr->cb        = cbAllocated;
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        pHdr->cbReq     = cb;
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    }
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    else
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        LogRel(("rtMemAlloc(%u, %#x) failed\n", (unsigned)cb + sizeof(*pHdr), fFlags));
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    return pHdr;
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync}
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync/**
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync * OS specific free function.
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync */
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsyncvoid rtR0MemFree(PRTMEMHDR pHdr)
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync{
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    pHdr->u32Magic += 1;
295cafc57090fbc05ed081f4d1907005745afa06vboxsync#ifdef RT_ARCH_AMD64
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    if (pHdr->fFlags & RTMEMHDR_FLAG_EXEC)
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        vbi_text_free(pHdr, pHdr->cb + sizeof(*pHdr));
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync    else
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync#endif
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync        kmem_free(pHdr, pHdr->cb + sizeof(*pHdr));
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync}
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
4a5d1cb72abd351221a0d5bdce3a01b071f697a9vboxsync
RTR0DECL(void *) RTMemContAlloc(PRTCCPHYS pPhys, size_t cb)
{
    AssertPtrReturn(pPhys, NULL);
    AssertReturn(cb > 0, NULL);
    RT_ASSERT_PREEMPTIBLE();

    /* Allocate physically contiguous (< 4GB) page-aligned memory. */
    uint64_t physAddr = _4G -1;
    caddr_t virtAddr  = vbi_contig_alloc(&physAddr, cb);
    if (virtAddr == NULL)
    {
        LogRel(("vbi_contig_alloc failed to allocate %u bytes\n", cb));
        return NULL;
    }

    Assert(physAddr < _4G);
    *pPhys = physAddr;
    return virtAddr;
}


RTR0DECL(void) RTMemContFree(void *pv, size_t cb)
{
    RT_ASSERT_PREEMPTIBLE();
    if (pv)
        vbi_contig_free(pv, cb);
}