/*
* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * 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@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
vm_offset_t va,
vm_offset_t spa,
vm_offset_t epa,
- vm_prot_t prot)
+ vm_prot_t prot,
+ unsigned int flags)
{
+ unsigned int mflags;
+ mflags = 0; /* Make sure this is initialized to nothing special */
+ if(!(flags & VM_WIMG_USE_DEFAULT)) { /* Are they supplying the attributes? */
+ mflags = mmFlgUseAttr | (flags & VM_MEM_GUARDED) | ((flags & VM_MEM_NOT_CACHEABLE) >> 1); /* Convert to our mapping_make flags */
+ }
addr64_t colladr;
assert(epa > spa);
- colladr = mapping_make(kernel_pmap, (addr64_t)va, (ppnum_t)(spa >> 12), (mmFlgBlock | mmFlgPerm), (epa - spa) >> 12, prot & VM_PROT_ALL);
+ colladr = mapping_make(kernel_pmap, (addr64_t)va, (ppnum_t)(spa >> 12),
+ (mmFlgBlock | mmFlgPerm), (epa - spa) >> 12, (prot & VM_PROT_ALL) );
if(colladr) { /* Was something already mapped in the range? */
panic("pmap_map: attempt to map previously mapped range - va = %08X, pa = %08X, epa = %08X, collision = %016llX\n",
kernel_pmap->pmap_link.prev = (queue_t)kernel_pmap; /* Set up anchor reverse */
kernel_pmap->ref_count = 1;
kernel_pmap->pmapFlags = pmapKeyDef; /* Set the default keys */
+ kernel_pmap->pmapFlags |= pmapNXdisabled;
kernel_pmap->pmapCCtl = pmapCCtlVal; /* Initialize cache control */
kernel_pmap->space = PPC_SID_KERNEL;
kernel_pmap->pmapvr = 0; /* Virtual = Real */
/* Map V=R the page tables */
pmap_map(first_used_addr, first_used_addr,
- round_page(first_used_addr + size), VM_PROT_READ | VM_PROT_WRITE);
+ round_page(first_used_addr + size), VM_PROT_READ | VM_PROT_WRITE, VM_WIMG_USE_DEFAULT);
*first_avail = round_page(first_used_addr + size); /* Set next available page */
first_free_virt = *first_avail; /* Ditto */
* only, and is bounded by that size.
*/
pmap_t
-pmap_create(vm_map_size_t size)
+pmap_create(vm_map_size_t size, __unused boolean_t is_64bit)
{
pmap_t pmap, ckpmap, fore;
int s;
mapping_t *mp;
- switch (prot) {
+ switch (prot & VM_PROT_ALL) {
case VM_PROT_READ:
case VM_PROT_READ|VM_PROT_EXECUTE:
remove = FALSE;
* physical page.
*/
- mapping_protect_phys(pa, prot & VM_PROT_ALL); /* Change protection of all mappings to page. */
+ mapping_protect_phys(pa, (prot & VM_PROT_ALL) ); /* Change protection of all mappings to page. */
}
endva = eva & -4096LL; /* Round end down to a page */
while(1) { /* Go until we finish the range */
- mapping_protect(pmap, va, prot & VM_PROT_ALL, &va); /* Change the protection and see what's next */
+ mapping_protect(pmap, va, (prot & VM_PROT_ALL), &va); /* Change the protection and see what's next */
if((va == 0) || (va >= endva)) break; /* End loop if we finish range or run off the end */
}
while(1) { /* Keep trying the enter until it goes in */
- colva = mapping_make(pmap, va, pa, mflags, 1, prot & VM_PROT_ALL); /* Enter the mapping into the pmap */
+ colva = mapping_make(pmap, va, pa, mflags, 1, (prot & VM_PROT_ALL) ); /* Enter the mapping into the pmap */
if(!colva) break; /* If there were no collisions, we are done... */
}
+
+
+unsigned int pmap_cache_attributes(ppnum_t pgn) {
+
+ unsigned int flags;
+ struct phys_entry * pp;
+
+ // Find physical address
+ if ((pp = pmap_find_physentry(pgn))) {
+ // Use physical attributes as default
+ // NOTE: DEVICE_PAGER_FLAGS are made to line up
+ flags = VM_MEM_COHERENT; /* We only support coherent memory */
+ if (pp->ppLink & ppG) flags |= VM_MEM_GUARDED; /* Add in guarded if it is */
+ if (pp->ppLink & ppI) flags |= VM_MEM_NOT_CACHEABLE; /* Add in cache inhibited if so */
+ } else
+ // If no physical, just hard code attributes
+ flags = VM_WIMG_IO;
+
+ return (flags);
+}
+
+
+
/*
* pmap_attribute_cache_sync(vm_offset_t pa)
*
addr64_t cva, cpoff;
ppnum_t cpphys;
- sharedPmap = pmap_create(0); /* Get a pmap to hold the common segment */
+ sharedPmap = pmap_create(0, FALSE); /* Get a pmap to hold the common segment */
if(!sharedPmap) { /* Check for errors */
panic("pmap_init_sharedpage: couldn't make sharedPmap\n");
}
}
cva = mapping_make(sharedPmap, (addr64_t)((uint32_t)_COMM_PAGE_BASE_ADDRESS) + cpoff,
- cpphys, mmFlgPerm, 1, VM_PROT_READ); /* Map the page read only */
+ cpphys, mmFlgPerm, 1, VM_PROT_READ | VM_PROT_EXECUTE); /* Map the page read/execute only */
if(cva) { /* Check for errors */
panic("pmap_init_sharedpage: couldn't map commpage page - cva = %016llX\n", cva);
}
{
return TRUE;
}
+
+
+/*
+ * disable no-execute capability on
+ * the specified pmap
+ */
+void pmap_disable_NX(pmap_t pmap) {
+
+ pmap->pmapFlags |= pmapNXdisabled;
+}
projects / apple / xnu.git / blobdiff