X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/0c530ab8987f0ae6a1a3d9284f40182b88852816..e2d2fc5c71f7d145cba7267989251af45e3bb5ba:/osfmk/i386/cpu.c

diff --git a/osfmk/i386/cpu.c b/osfmk/i386/cpu.c
index 588377b1f..4cdeed647 100644
--- a/osfmk/i386/cpu.c
+++ b/osfmk/i386/cpu.c
@@ -1,23 +1,29 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2009 Apple 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@
  */
 /*
  *	File:	i386/cpu.c
@@ -29,15 +35,19 @@
 #include <kern/misc_protos.h>
 #include <kern/machine.h>
 #include <mach/processor_info.h>
-#include <i386/mp.h>
+#include <i386/pmap.h>
 #include <i386/machine_cpu.h>
 #include <i386/machine_routines.h>
-#include <i386/pmap.h>
 #include <i386/misc_protos.h>
 #include <i386/cpu_threads.h>
-#include <i386/rtclock.h>
+#include <i386/rtclock_protos.h>
+#include <i386/cpuid.h>
+#if CONFIG_VMX
+#include <i386/vmx/vmx_cpu.h>
+#endif
 #include <vm/vm_kern.h>
-#include "cpuid.h"
+#include <kern/etimer.h>
+#include <kern/timer_call.h>
 
 struct processor	processor_master;
 
@@ -48,7 +58,7 @@ cpu_control(
 	processor_info_t	info,
 	unsigned int		count)
 {
-	printf("cpu_control(%d,0x%x,%d) not implemented\n",
+	printf("cpu_control(%d,%p,%d) not implemented\n",
 		slot_num, info, count);
 	return (KERN_FAILURE);
 }
@@ -71,7 +81,7 @@ cpu_info(
 	processor_info_t	info,
 	unsigned int		*count)
 {
-	printf("cpu_info(%d,%d,0x%x,0x%x) not implemented\n",
+	printf("cpu_info(%d,%d,%p,%p) not implemented\n",
 		flavor, slot_num, info, count);
 	return (KERN_FAILURE);
 }
@@ -79,11 +89,11 @@ cpu_info(
 void
 cpu_sleep(void)
 {
-	cpu_data_t	*proc_info = current_cpu_datap();
+	cpu_data_t	*cdp = current_cpu_datap();
 
-	proc_info->cpu_running = FALSE;
+	i386_deactivate_cpu();
 
-	PE_cpu_machine_quiesce(proc_info->cpu_id);
+	PE_cpu_machine_quiesce(cdp->cpu_id);
 
 	cpu_thread_halt();
 }
@@ -93,10 +103,13 @@ cpu_init(void)
 {
 	cpu_data_t	*cdp = current_cpu_datap();
 
+	timer_call_initialize_queue(&cdp->rtclock_timer.queue);
+	cdp->rtclock_timer.deadline = EndOfAllTime;
+
 	cdp->cpu_type = cpuid_cputype();
 	cdp->cpu_subtype = cpuid_cpusubtype();
 
-	cdp->cpu_running = TRUE;
+	i386_activate_cpu();
 }
 
 kern_return_t
@@ -108,20 +121,46 @@ cpu_start(
 	if (cpu == cpu_number()) {
 		cpu_machine_init();
 		return KERN_SUCCESS;
-	} else {
+	}
+
+	/*
+	 * Try to bring the CPU back online without a reset.
+	 * If the fast restart doesn't succeed, fall back to
+	 * the slow way.
+	 */
+	ret = intel_startCPU_fast(cpu);
+	if (ret != KERN_SUCCESS) {
 		/*
 		 * Should call out through PE.
 		 * But take the shortcut here.
 		 */
 		ret = intel_startCPU(cpu);
-		return(ret);
 	}
+
+	if (ret != KERN_SUCCESS)
+		kprintf("cpu: cpu_start(%d) returning failure!\n", cpu);
+
+	return(ret);
 }
 
 void
 cpu_exit_wait(
-	__unused int cpu)
+	int cpu)
 {
+    	cpu_data_t	*cdp = cpu_datap(cpu);
+
+	/*
+	 * Wait until the CPU indicates that it has stopped.
+	 */
+	simple_lock(&x86_topo_lock);
+	while ((cdp->lcpu.state != LCPU_HALT)
+	       && (cdp->lcpu.state != LCPU_OFF)
+	       && !cdp->lcpu.stopped) {
+	    simple_unlock(&x86_topo_lock);
+	    cpu_pause();
+	    simple_lock(&x86_topo_lock);
+	}
+	simple_unlock(&x86_topo_lock);
 }
 
 void
@@ -133,14 +172,12 @@ cpu_machine_init(
 	PE_cpu_machine_init(cdp->cpu_id, !cdp->cpu_boot_complete);
 	cdp->cpu_boot_complete = TRUE;
 	cdp->cpu_running = TRUE;
-#if 0
-	if (cpu_datap(cpu)->hibernate)
-	{
-	    cpu_datap(cpu)->hibernate = 0;
-	    hibernate_machine_init();
-	}
-#endif
 	ml_init_interrupt();
+
+#if CONFIG_VMX
+	/* for every CPU, get the VT specs */
+	vmx_get_specs();
+#endif
 }
 
 processor_t