]> git.saurik.com Git - apple/xnu.git/blobdiff - osfmk/kern/ipc_host.c
xnu-1228.3.13.tar.gz
[apple/xnu.git] / osfmk / kern / ipc_host.c
index 23d830ffd5c5ed25455a0310e17aedeb3d1c9a22..69d620e8ce8f17c241480e5e98945f74ec716382 100644 (file)
@@ -1,16 +1,19 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * 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.
+ * 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.
+ * 
+ * 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
@@ -20,7 +23,7 @@
  * 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@
@@ -60,8 +63,8 @@
  */
 #include <mach/message.h>
 #include <mach/mach_traps.h>
-#include <mach/etap_events.h>
 #include <mach/mach_host_server.h>
+#include <mach/host_priv_server.h>
 #include <kern/host.h>
 #include <kern/processor.h>
 #include <kern/lock.h>
@@ -99,7 +102,7 @@ void ipc_host_init(void)
        ipc_port_t      port;
        int i;
 
-       mutex_init(&realhost.lock, ETAP_MISC_MASTER);
+       mutex_init(&realhost.lock, 0);
 
        /*
         *      Allocate and set up the two host ports.
@@ -108,24 +111,27 @@ void ipc_host_init(void)
        if (port == IP_NULL)
                panic("ipc_host_init");
 
-       ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST);
-       realhost.host_self = port;
+       ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST_SECURITY);
+       kernel_set_special_port(&realhost, HOST_SECURITY_PORT,
+                               ipc_port_make_send(port));
 
        port = ipc_port_alloc_kernel();
        if (port == IP_NULL)
                panic("ipc_host_init");
 
-       ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST_PRIV);
-       realhost.host_priv_self = port;
+       ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST);
+       kernel_set_special_port(&realhost, HOST_PORT,
+                               ipc_port_make_send(port));
 
        port = ipc_port_alloc_kernel();
        if (port == IP_NULL)
                panic("ipc_host_init");
 
-       ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST_SECURITY);
-       realhost.host_security_self = port;
+       ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST_PRIV);
+       kernel_set_special_port(&realhost, HOST_PRIV_PORT,
+                               ipc_port_make_send(port));
 
-       realhost.io_master = IP_NULL;
+       /* the rest of the special ports will be set up later */
 
        for (i = FIRST_EXCEPTION; i < EXC_TYPES_COUNT; i++) {
                        realhost.exc_actions[i].port = IP_NULL;
@@ -134,8 +140,8 @@ void ipc_host_init(void)
        /*
         *      Set up ipc for default processor set.
         */
-       ipc_pset_init(&default_pset);
-       ipc_pset_enable(&default_pset);
+       ipc_pset_init(&pset0);
+       ipc_pset_enable(&pset0);
 
        /*
         *      And for master processor
@@ -156,12 +162,15 @@ void ipc_host_init(void)
  */
 
 mach_port_name_t
-host_self_trap(void)
+host_self_trap(
+       __unused struct host_self_trap_args *args)
 {
        ipc_port_t sright;
+       mach_port_name_t name;
 
        sright = ipc_port_copy_send(current_task()->itk_host);
-       return ipc_port_copyout_send(sright, current_space());
+       name = ipc_port_copyout_send(sright, current_space());
+       return name;
 }
 
 /*
@@ -274,51 +283,14 @@ void
 ipc_pset_enable(
        processor_set_t         pset)
 {
-       pset_lock(pset);
-       if (pset->active) {
-               ipc_kobject_set(pset->pset_self,
-                               (ipc_kobject_t) pset, IKOT_PSET);
-               ipc_kobject_set(pset->pset_name_self,
-                               (ipc_kobject_t) pset, IKOT_PSET_NAME);
-               pset->ref_count += 2;
-       }
-       pset_unlock(pset);
-}
-
-/*
- *     ipc_pset_disable:
- *
- *     Disable ipc access to a processor set by clearing the port objects.
- *     Caller must hold pset lock and a reference to the pset.  Ok to
- *     just decrement pset reference count as a result.
- */
-void
-ipc_pset_disable(
-       processor_set_t         pset)
-{
-       ipc_kobject_set(pset->pset_self, IKO_NULL, IKOT_NONE);
-       ipc_kobject_set(pset->pset_name_self, IKO_NULL, IKOT_NONE);
-       pset->ref_count -= 2;
+       ipc_kobject_set(pset->pset_self, (ipc_kobject_t) pset, IKOT_PSET);
+       ipc_kobject_set(pset->pset_name_self, (ipc_kobject_t) pset, IKOT_PSET_NAME);
 }
 
 /*
- *     ipc_pset_terminate:
+ *     processor_set_default:
  *
- *     Processor set is dead.  Deallocate the ipc control structures.
- */
-void
-ipc_pset_terminate(
-       processor_set_t         pset)
-{
-       ipc_port_dealloc_kernel(pset->pset_self);
-       ipc_port_dealloc_kernel(pset->pset_name_self);
-}
-
-/*
- *     processor_set_default, processor_set_default_priv:
- *
- *     Return ports for manipulating default_processor set.  MiG code
- *     differentiates between these two routines.
+ *     Return ports for manipulating default_processor set.
  */
 kern_return_t
 processor_set_default(
@@ -328,9 +300,9 @@ processor_set_default(
        if (host == HOST_NULL)
                return(KERN_INVALID_ARGUMENT);
 
-       *pset = &default_pset;
-       pset_reference(*pset);
-       return(KERN_SUCCESS);
+       *pset = &pset0;
+
+       return (KERN_SUCCESS);
 }
 
 /*
@@ -474,18 +446,13 @@ ref_pset_port_locked(ipc_port_t port, boolean_t matchn, processor_set_t *ppset)
        pset = PROCESSOR_SET_NULL;
        if (ip_active(port) &&
                ((ip_kotype(port) == IKOT_PSET) ||
-                (matchn && (ip_kotype(port) == IKOT_PSET_NAME)))) {
+                       (matchn && (ip_kotype(port) == IKOT_PSET_NAME)))) {
                pset = (processor_set_t) port->ip_kobject;
-               if (!pset_lock_try(pset)) {
-                       ip_unlock(port);
-                       mutex_pause();
-                       return (FALSE);
-               }
-               pset->ref_count++;
-               pset_unlock(pset);
        }
+
        *ppset = pset;
        ip_unlock(port);
+
        return (TRUE);
 }
 
@@ -504,8 +471,7 @@ convert_host_to_port(
 {
        ipc_port_t port;
 
-       port = ipc_port_make_send(host->host_self);
-
+       host_get_host_port(host, &port);
        return port;
 }
 
@@ -543,7 +509,7 @@ convert_processor_to_port(
  *     Routine:        convert_pset_to_port
  *     Purpose:
  *             Convert from a pset to a port.
- *             Consumes a pset ref; produces a naked send right
+ *             Produces a naked send right
  *             which may be invalid.
  *     Conditions:
  *             Nothing locked.
@@ -553,16 +519,11 @@ ipc_port_t
 convert_pset_to_port(
        processor_set_t         pset)
 {
-       ipc_port_t port;
+       ipc_port_t port = pset->pset_self;
 
-       pset_lock(pset);
-       if (pset->active)
-               port = ipc_port_make_send(pset->pset_self);
-       else
-               port = IP_NULL;
-       pset_unlock(pset);
+       if (port != IP_NULL)
+               port = ipc_port_make_send(port);
 
-       pset_deallocate(pset);
        return port;
 }
 
@@ -570,7 +531,7 @@ convert_pset_to_port(
  *     Routine:        convert_pset_name_to_port
  *     Purpose:
  *             Convert from a pset to a port.
- *             Consumes a pset ref; produces a naked send right
+ *             Produces a naked send right
  *             which may be invalid.
  *     Conditions:
  *             Nothing locked.
@@ -580,16 +541,11 @@ ipc_port_t
 convert_pset_name_to_port(
        processor_set_name_t            pset)
 {
-       ipc_port_t port;
+       ipc_port_t port = pset->pset_name_self;
 
-       pset_lock(pset);
-       if (pset->active)
-               port = ipc_port_make_send(pset->pset_name_self);
-       else
-               port = IP_NULL;
-       pset_unlock(pset);
+       if (port != IP_NULL)
+               port = ipc_port_make_send(port);
 
-       pset_deallocate(pset);
        return port;
 }
 
@@ -657,7 +613,7 @@ host_set_exception_ports(
        }
 
        if (IP_VALID(new_port)) {
-               switch (new_behavior) {
+               switch (new_behavior & ~MACH_EXCEPTION_CODES) {
                case EXCEPTION_DEFAULT:
                case EXCEPTION_STATE:
                case EXCEPTION_STATE_IDENTITY:
@@ -724,9 +680,7 @@ host_get_exception_ports(
        exception_behavior_array_t      behaviors,
        thread_state_flavor_array_t     flavors         )
 {
-       register int    i,
-                       j,
-                       count;
+       unsigned int    i, j, count;
 
        if (host_priv == HOST_PRIV_NULL)
                return KERN_INVALID_ARGUMENT;
@@ -788,7 +742,7 @@ host_swap_exception_ports(
        exception_behavior_array_t      behaviors,
        thread_state_flavor_array_t     flavors         )
 {
-       register int    i,
+       unsigned int    i,
                        j,
                        count;
        ipc_port_t      old_port[EXC_TYPES_COUNT];