X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..ff6e181ae92fc6f1e89841290f461d1f2f9badd9:/osfmk/i386/phys.c

diff --git a/osfmk/i386/phys.c b/osfmk/i386/phys.c
index f5060f2b9..442e13035 100644
--- a/osfmk/i386/phys.c
+++ b/osfmk/i386/phys.c
@@ -1,21 +1,22 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -47,23 +48,51 @@
  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.
  */
-#include <string.h>
 
+#include <mach_rt.h>
+#include <mach_debug.h>
+#include <mach_ldebug.h>
+
+#include <sys/kdebug.h>
+
+#include <mach/kern_return.h>
+#include <mach/thread_status.h>
 #include <mach/vm_param.h>
-#include <mach/boolean.h>
-#include <vm/pmap.h>
-#include <vm/vm_page.h>
+
+#include <kern/counters.h>
+#include <kern/mach_param.h>
+#include <kern/task.h>
+#include <kern/thread.h>
+#include <kern/sched_prim.h>
 #include <kern/misc_protos.h>
+#include <kern/assert.h>
+#include <kern/spl.h>
+#include <ipc/ipc_port.h>
+#include <vm/vm_kern.h>
+#include <vm/vm_map.h>
+#include <vm/pmap.h>
+
+#include <i386/cpu_data.h>
+#include <i386/cpu_number.h>
+#include <i386/thread.h>
+#include <i386/eflags.h>
+#include <i386/proc_reg.h>
+#include <i386/seg.h>
+#include <i386/tss.h>
+#include <i386/user_ldt.h>
+#include <i386/fpu.h>
+#include <i386/iopb_entries.h>
+#include <i386/misc_protos.h>
 
 /*
  *	pmap_zero_page zeros the specified (machine independent) page.
  */
 void
 pmap_zero_page(
-	vm_offset_t p)
+	       ppnum_t pn)
 {
-	assert(p != vm_page_fictitious_addr);
-	bzero((char *)phystokv(p), PAGE_SIZE);
+	assert(pn != vm_page_fictitious_addr);
+	bzero_phys((addr64_t)i386_ptob(pn), PAGE_SIZE);
 }
 
 /*
@@ -72,28 +101,13 @@ pmap_zero_page(
  */
 void
 pmap_zero_part_page(
-	vm_offset_t	p,
+        ppnum_t         pn,
 	vm_offset_t     offset,
 	vm_size_t       len)
 {
-	assert(p != vm_page_fictitious_addr);
+	assert(pn != vm_page_fictitious_addr);
 	assert(offset + len <= PAGE_SIZE);
-
-	bzero((char *)phystokv(p) + offset, len);
-}
-
-/*
- *	pmap_copy_page copies the specified (machine independent) pages.
- */
-void
-pmap_copy_page(
-	vm_offset_t src,
-	vm_offset_t dst)
-{
-	assert(src != vm_page_fictitious_addr);
-	assert(dst != vm_page_fictitious_addr);
-
-	memcpy((void *)phystokv(dst), (void *)phystokv(src), PAGE_SIZE);
+	bzero_phys((addr64_t)(i386_ptob(pn) + offset), len);
 }
 
 /*
@@ -101,19 +115,22 @@ pmap_copy_page(
  */
 void
 pmap_copy_part_page(
-	vm_offset_t	src,
+	ppnum_t 	psrc,
 	vm_offset_t	src_offset,
-	vm_offset_t	dst,
+	ppnum_t	        pdst,
 	vm_offset_t	dst_offset,
 	vm_size_t	len)
 {
-	assert(src != vm_page_fictitious_addr);
-	assert(dst != vm_page_fictitious_addr);
+        vm_offset_t  src, dst;
+	assert(psrc != vm_page_fictitious_addr);
+	assert(pdst != vm_page_fictitious_addr);
+	src = (vm_offset_t)i386_ptob(psrc);
+	dst = (vm_offset_t)i386_ptob(pdst);
 	assert(((dst & PAGE_MASK) + dst_offset + len) <= PAGE_SIZE);
 	assert(((src & PAGE_MASK) + src_offset + len) <= PAGE_SIZE);
-
-        memcpy((void *)(phystokv(dst) + dst_offset),
-	       (void *)(phystokv(src) + src_offset), len);
+	bcopy_phys((addr64_t)src + (src_offset & INTEL_OFFMASK),
+		   (addr64_t)dst + (dst_offset & INTEL_OFFMASK),
+		   len);
 }
 
 /*
@@ -122,16 +139,26 @@ pmap_copy_part_page(
  */
 void
 pmap_copy_part_lpage(
-	vm_offset_t	src,
-	vm_offset_t	dst,
+	vm_offset_t 	src,
+	ppnum_t 	pdst,
 	vm_offset_t	dst_offset,
 	vm_size_t	len)
 {
-	assert(src != vm_page_fictitious_addr);
-	assert(dst != vm_page_fictitious_addr);
-	assert(((dst & PAGE_MASK) + dst_offset + len) <= PAGE_SIZE);
+	pt_entry_t *ptep;
+	thread_t	thr_act = current_thread();
 
-        memcpy((void *)(phystokv(dst) + dst_offset), (void *)src, len);
+	assert(pdst != vm_page_fictitious_addr);
+	ptep = pmap_pte(thr_act->map->pmap, i386_ptob(pdst));
+	if (0 == ptep)
+		panic("pmap_copy_part_lpage ptep");
+	assert(((pdst & PAGE_MASK) + dst_offset + len) <= PAGE_SIZE);
+	if (*(pt_entry_t *) CM2)
+	  panic("pmap_copy_part_lpage");
+	*(int *) CM2 = INTEL_PTE_VALID | INTEL_PTE_RW | (*ptep & PG_FRAME) | 
+	  INTEL_PTE_REF | INTEL_PTE_MOD;
+	invlpg((unsigned int) CA2);
+	memcpy((void *) (CA2 + (dst_offset & INTEL_OFFMASK)), (void *) src, len);
+	*(pt_entry_t *) CM2 = 0;
 }
 
 /*
@@ -140,16 +167,26 @@ pmap_copy_part_lpage(
  */
 void
 pmap_copy_part_rpage(
-	vm_offset_t	src,
+	ppnum_t	        psrc,
 	vm_offset_t	src_offset,
 	vm_offset_t	dst,
 	vm_size_t	len)
 {
-	assert(src != vm_page_fictitious_addr);
-	assert(dst != vm_page_fictitious_addr);
-	assert(((src & PAGE_MASK) + src_offset + len) <= PAGE_SIZE);
+  pt_entry_t *ptep;
+  thread_t thr_act = current_thread();
 
-        memcpy((void *)dst, (void *)(phystokv(src) + src_offset), len);
+	assert(psrc != vm_page_fictitious_addr);
+	ptep = pmap_pte(thr_act->map->pmap, i386_ptob(psrc));
+	if (0 == ptep)
+		panic("pmap_copy_part_rpage ptep");
+	assert(((psrc & PAGE_MASK) + src_offset + len) <= PAGE_SIZE);
+	if (*(pt_entry_t *) CM2)
+	  panic("pmap_copy_part_rpage");
+	*(pt_entry_t *) CM2 = INTEL_PTE_VALID | INTEL_PTE_RW | (*ptep & PG_FRAME) | 
+	  INTEL_PTE_REF;
+	invlpg((unsigned int) CA2);
+	memcpy((void *) dst, (void *) (CA2 + (src_offset & INTEL_OFFMASK)), len);
+	*(pt_entry_t *) CM2 = 0;
 }
 
 /*
@@ -161,9 +198,15 @@ vm_offset_t
 kvtophys(
 	vm_offset_t addr)
 {
-	pt_entry_t *pte;
+        pt_entry_t *ptep;
+	pmap_paddr_t pa;
 
-	if ((pte = pmap_pte(kernel_pmap, addr)) == PT_ENTRY_NULL)
-		return 0;
-	return i386_trunc_page(*pte) | (addr & INTEL_OFFMASK);
+	if ((ptep = pmap_pte(kernel_pmap, addr)) == PT_ENTRY_NULL) {
+	  pa = 0;
+	} else {
+	  pa =  pte_to_pa(*ptep) | (addr & INTEL_OFFMASK);
+	}
+	if (0 == pa)
+		kprintf("kvtophys ret 0!\n");
+	return (pa);
 }