Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 165 insertions, 0 deletions

diff --git a/src/VBox/Runtime/r0drv/netbsd/alloc-r0drv-netbsd.c b/src/VBox/Runtime/r0drv/netbsd/alloc-r0drv-netbsd.c
new file mode 100644
index 00000000..8c0f7621
--- /dev/null
+++ b/src/VBox/Runtime/r0drv/netbsd/alloc-r0drv-netbsd.c
@@ -0,0 +1,165 @@
+/* $Id: alloc-r0drv-netbsd.c $ */
+/** @file
+ * IPRT - Memory Allocation, Ring-0 Driver, NetBSD.
+ */
+/*
+ * Copyright (C) 2014-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ * ---------------------------------------------------------------------------
+ *
+ * This code is based on:
+ *
+ * Copyright (c) 2014 Arto Huusko
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include "the-netbsd-kernel.h"
+#include "internal/iprt.h"
+#include <iprt/mem.h>
+
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+#include <iprt/param.h>
+
+#include "r0drv/alloc-r0drv.h"
+
+
+DECLHIDDEN(int) rtR0MemAllocEx(size_t cb, uint32_t fFlags, PRTMEMHDR *ppHdr)
+{
+    size_t      cbAllocated = cb;
+    PRTMEMHDR   pHdr        = NULL;
+
+    if (fFlags & RTMEMHDR_FLAG_ZEROED)
+        pHdr = kmem_zalloc(cb + sizeof(RTMEMHDR), KM_NOSLEEP);
+    else
+        pHdr = kmem_alloc(cb + sizeof(RTMEMHDR), KM_NOSLEEP);
+
+    if (RT_UNLIKELY(!pHdr))
+        return VERR_NO_MEMORY;
+
+    pHdr->u32Magic   = RTMEMHDR_MAGIC;
+    pHdr->fFlags     = fFlags;
+    pHdr->cb         = cbAllocated;
+    pHdr->cbReq      = cb;
+
+    *ppHdr = pHdr;
+    return VINF_SUCCESS;
+}
+
+
+DECLHIDDEN(void) rtR0MemFree(PRTMEMHDR pHdr)
+{
+    pHdr->u32Magic += 1;
+
+    kmem_free(pHdr, pHdr->cb + sizeof(RTMEMHDR));
+}
+
+RTR0DECL(void) RTMemContFree(void *pv, size_t cb)
+{
+    if (pv)
+    {
+        cb = round_page(cb);
+
+        paddr_t pa;
+        pmap_extract(pmap_kernel(), (vaddr_t)pv, &pa);
+
+        /*
+         * Reconstruct pglist to free the physical pages
+         */
+        struct pglist rlist;
+        TAILQ_INIT(&rlist);
+
+        for (paddr_t pa2 = pa ; pa2 < pa + cb ; pa2 += PAGE_SIZE) {
+            struct vm_page *page = PHYS_TO_VM_PAGE(pa2);
+            TAILQ_INSERT_TAIL(&rlist, page, pageq.queue);
+        }
+
+        /* Unmap */
+        pmap_kremove((vaddr_t)pv, cb);
+
+        /* Free the virtual space */
+        uvm_km_free(kernel_map, (vaddr_t)pv, cb, UVM_KMF_VAONLY);
+
+        /* Free the physical pages */
+        uvm_pglistfree(&rlist);
+    }
+}
+
+RTR0DECL(void *) RTMemContAlloc(PRTCCPHYS pPhys, size_t cb)
+{
+    /*
+     * Validate input.
+     */
+    AssertPtr(pPhys);
+    Assert(cb > 0);
+
+    cb = round_page(cb);
+
+    vaddr_t virt = uvm_km_alloc(kernel_map, cb, 0,
+            UVM_KMF_VAONLY | UVM_KMF_WAITVA | UVM_KMF_CANFAIL);
+    if (virt == 0)
+        return NULL;
+
+    struct pglist rlist;
+
+    if (uvm_pglistalloc(cb, 0, (paddr_t)0xFFFFFFFF,
+            PAGE_SIZE, 0, &rlist, 1, 1) != 0)
+    {
+        uvm_km_free(kernel_map, virt, cb, UVM_KMF_VAONLY);
+        return NULL;
+    }
+
+    struct vm_page *page;
+    vaddr_t virt2 = virt;
+    TAILQ_FOREACH(page, &rlist, pageq.queue)
+    {
+        pmap_kenter_pa(virt2, VM_PAGE_TO_PHYS(page),
+                VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE, 0);
+        virt2 += PAGE_SIZE;
+    }
+
+    page = TAILQ_FIRST(&rlist);
+    *pPhys = VM_PAGE_TO_PHYS(page);
+
+    return (void *)virt;
+}