/*
- * 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@
*/
/*
* @OSF_COPYRIGHT@
#ifndef _I386_MP_DESC_H_
#define _I386_MP_DESC_H_
-#include <cpus.h>
-#include <mach_kdb.h>
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
/*
* Multiprocessor i386/i486 systems use a separate copy of the
/*
* The descriptor tables are together in a structure
* allocated one per processor (except for the boot processor).
- * Note that dbtss could be conditionalized on MACH_KDB, but
- * doing so increases misconfiguration risk.
*/
-struct mp_desc_table {
- struct fake_descriptor idt[IDTSZ]; /* IDT */
- struct fake_descriptor gdt[GDTSZ]; /* GDT */
- struct fake_descriptor ldt[LDTSZ]; /* LDT */
- struct i386_tss ktss;
- struct i386_tss dbtss;
-};
+typedef struct cpu_desc_table {
+ struct fake_descriptor idt[IDTSZ] __attribute__ ((aligned (16)));
+ struct fake_descriptor gdt[GDTSZ] __attribute__ ((aligned (16)));
+ struct i386_tss ktss __attribute__ ((aligned (16)));
+ struct sysenter_stack sstk;
+} cpu_desc_table_t;
-/*
- * They are pointed to by a per-processor array.
- */
-extern struct mp_desc_table *mp_desc_table[NCPUS];
+typedef struct cpu_desc_table64 {
+#if !__x86_64__
+ struct fake_descriptor64 idt[IDTSZ] __attribute__ ((aligned (16)));
+#endif
+ struct fake_descriptor gdt[GDTSZ] __attribute__ ((aligned (16)));
+ struct x86_64_tss ktss __attribute__ ((aligned (16)));
+ struct sysenter_stack sstk __attribute__ ((aligned (16)));
+ uint8_t dfstk[PAGE_SIZE] __attribute__ ((aligned (16)));
+} cpu_desc_table64_t;
-/*
- * The kernel TSS gets its own pointer.
- */
-extern struct i386_tss *mp_ktss[NCPUS];
-#if MACH_KDB
-extern struct i386_tss *mp_dbtss[NCPUS];
-#endif /* MACH_KDB */
+#define current_gdt() (current_cpu_datap()->cpu_desc_index.cdi_gdt.ptr)
+#define current_idt() (current_cpu_datap()->cpu_desc_index.cdi_idt.ptr)
+#define current_ldt() (current_cpu_datap()->cpu_desc_index.cdi_ldt)
+#define current_ktss() (current_cpu_datap()->cpu_desc_index.cdi_ktss)
+#define current_sstk() (current_cpu_datap()->cpu_desc_index.cdi_sstk)
-/*
- * So does the GDT and IDT.
- */
-extern struct fake_descriptor *mp_gdt[NCPUS];
-extern struct fake_descriptor *mp_idt[NCPUS];
-extern struct fake_descriptor *mp_ldt[NCPUS];
+#define current_ktss64() ((struct x86_64_tss *) current_ktss())
+#define current_sstk64() ((addr64_t *) current_sstk())
+#define gdt_desc_p(sel) \
+ (&((struct real_descriptor *)current_gdt())[sel_idx(sel)])
+#define ldt_desc_p(sel) \
+ (&((struct real_descriptor *)current_ldt())[sel_idx(sel)])
-/*
- * Each CPU calls this routine to set up its descriptor tables.
- */
+extern void cpu_mode_init(cpu_data_t *cdp);
+
+extern void cpu_desc_init(cpu_data_t *cdp);
+extern void cpu_desc_init64(cpu_data_t *cdp);
+extern void cpu_desc_load(cpu_data_t *cdp);
+extern void cpu_desc_load64(cpu_data_t *cdp);
+
+extern boolean_t
+valid_user_data_selector(uint16_t selector);
+
+extern boolean_t
+valid_user_code_selector(uint16_t selector);
+
+extern boolean_t
+valid_user_stack_selector(uint16_t selector);
+
+extern boolean_t
+valid_user_segment_selectors(uint16_t cs,
+ uint16_t ss,
+ uint16_t ds,
+ uint16_t es,
+ uint16_t fs,
+ uint16_t gs);
-extern struct mp_desc_table * mp_desc_init(
- int cpu);
-extern void interrupt_stack_alloc(void);
+__END_DECLS
-#endif /* _I386_MP_DESC_H_ */
+#endif /* _X86_64_MP_DESC_H_ */
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