xnu-2050.7.9.tar.gz

[apple/xnu.git] / osfmk / i386 / cpu_data.h

diff --git a/osfmk/i386/cpu_data.h b/osfmk/i386/cpu_data.h
index 7d455b4a197913feb49cd46b26446c33c30ecac6..3473fbd3ac0bba2b84f8f2823d2b8603b002094a 100644 (file)
--- a/osfmk/i386/cpu_data.h
+++ b/osfmk/i386/cpu_data.h
@@ -1,23 +1,29 @@
 /*
 /*

- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2008 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,
  * 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@
  */
 /*
  * @OSF_COPYRIGHT@


@@ -29,51 +35,96 @@
 
 #include <mach_assert.h>
 
 
 #include <mach_assert.h>
 

-#if    defined(__GNUC__)
-

 #include <kern/assert.h>
 #include <kern/kern_types.h>
 #include <kern/assert.h>
 #include <kern/kern_types.h>

+#include <kern/queue.h>

 #include <kern/processor.h>
 #include <kern/processor.h>

+#include <kern/pms.h>

 #include <pexpert/pexpert.h>
 #include <pexpert/pexpert.h>

+#include <mach/i386/thread_status.h>
+#include <mach/i386/vm_param.h>
+#include <i386/rtclock_protos.h>
+#include <i386/pmCPU.h>
+#include <i386/cpu_topology.h>
+
+#if CONFIG_VMX
+#include <i386/vmx/vmx_cpu.h>
+#endif

 
 

+#include <machine/pal_routines.h>

 
 /*
  * Data structures referenced (anonymously) from per-cpu data:
  */
 
 /*
  * Data structures referenced (anonymously) from per-cpu data:
  */

-struct cpu_core;

 struct cpu_cons_buffer;
 struct cpu_cons_buffer;

-struct mp_desc_table;
-
+struct cpu_desc_table;
+struct mca_state;

 
 /*
  * Data structures embedded in per-cpu data:
  */
 typedef struct rtclock_timer {
 
 /*
  * Data structures embedded in per-cpu data:
  */
 typedef struct rtclock_timer {

-       uint64_t        deadline;
-       boolean_t       is_set;
-       boolean_t       has_expired;
+       mpqueue_head_t          queue;
+       uint64_t                deadline;
+       uint64_t                when_set;
+       boolean_t               has_expired;

 } rtclock_timer_t;
 
 } rtclock_timer_t;
 

-typedef struct {
-       uint64_t        rnt_tsc;                /* timestamp */
-       uint64_t        rnt_nanos;              /* nanoseconds */
-       uint32_t        rnt_scale;              /* tsc -> nanosec multiplier */
-       uint32_t        rnt_shift;              /* tsc -> nanosec shift/div */
-       uint64_t        rnt_step_tsc;           /* tsc when scale applied */
-       uint64_t        rnt_step_nanos;         /* ns  when scale applied */
-} rtc_nanotime_t;
+
+#if defined(__i386__)

 
 typedef struct {
        struct i386_tss         *cdi_ktss;
 
 typedef struct {
        struct i386_tss         *cdi_ktss;

-#if    MACH_KDB
-       struct i386_tss         *cdi_dbtss;
-#endif /* MACH_KDB */
-       struct fake_descriptor  *cdi_gdt;
-       struct fake_descriptor  *cdi_idt;
-       struct fake_descriptor  *cdi_ldt;
+       struct __attribute__((packed)) {
+               uint16_t size;
+               struct fake_descriptor *ptr;
+       } cdi_gdt, cdi_idt;
+       struct fake_descriptor  *cdi_ldt;
+       vm_offset_t                             cdi_sstk;

 } cpu_desc_index_t;
 
 } cpu_desc_index_t;
 

+typedef enum {
+       TASK_MAP_32BIT,                 /* 32-bit, compatibility mode */ 
+       TASK_MAP_64BIT,                 /* 64-bit, separate address space */ 
+       TASK_MAP_64BIT_SHARED           /* 64-bit, kernel-shared addr space */
+} task_map_t;
+
+#elif defined(__x86_64__)
+
+
+typedef struct {
+       struct x86_64_tss               *cdi_ktss;
+       struct __attribute__((packed)) {
+               uint16_t size;
+               void *ptr;
+       } cdi_gdt, cdi_idt;
+       struct fake_descriptor  *cdi_ldt;
+       vm_offset_t                             cdi_sstk;
+} cpu_desc_index_t;

 
 

+typedef enum {
+       TASK_MAP_32BIT,                 /* 32-bit user, compatibility mode */ 
+       TASK_MAP_64BIT,                 /* 64-bit user thread, shared space */ 
+} task_map_t;
+
+#else
+#error Unsupported architecture
+#endif
+
+/*
+ * This structure is used on entry into the (uber-)kernel on syscall from
+ * a 64-bit user. It contains the address of the machine state save area
+ * for the current thread and a temporary place to save the user's rsp
+ * before loading this address into rsp.
+ */
+typedef struct {
+       addr64_t        cu_isf;         /* thread->pcb->iss.isf */
+       uint64_t        cu_tmp;         /* temporary scratch */ 
+       addr64_t        cu_user_gs_base;
+} cpu_uber_t;
+
+typedef        uint16_t        pcid_t;
+typedef        uint8_t         pcid_ref_t;

 /*
  * Per-cpu data.
  *
 /*
  * Per-cpu data.
  *


@@ -89,60 +140,152 @@ typedef struct {
  */
 typedef struct cpu_data
 {
  */
 typedef struct cpu_data
 {

+       struct pal_cpu_data     cpu_pal_data;           /* PAL-specific data */
+#define                                cpu_pd cpu_pal_data     /* convenience alias */

        struct cpu_data         *cpu_this;              /* pointer to myself */
        thread_t                cpu_active_thread;
        struct cpu_data         *cpu_this;              /* pointer to myself */
        thread_t                cpu_active_thread;

-       thread_t                cpu_active_kloaded;
-       vm_offset_t             cpu_active_stack;
-       vm_offset_t             cpu_kernel_stack;
-       vm_offset_t             cpu_int_stack_top;

        int                     cpu_preemption_level;
        int                     cpu_preemption_level;

-       int                     cpu_simple_lock_count;
-       int                     cpu_interrupt_level;

        int                     cpu_number;             /* Logical CPU */
        int                     cpu_number;             /* Logical CPU */

+       void                    *cpu_int_state;         /* interrupt state */
+       vm_offset_t             cpu_active_stack;       /* kernel stack base */
+       vm_offset_t             cpu_kernel_stack;       /* kernel stack top */
+       vm_offset_t             cpu_int_stack_top;
+       int                     cpu_interrupt_level;

        int                     cpu_phys_number;        /* Physical CPU */
        cpu_id_t                cpu_id;                 /* Platform Expert */
        int                     cpu_signals;            /* IPI events */
        int                     cpu_phys_number;        /* Physical CPU */
        cpu_id_t                cpu_id;                 /* Platform Expert */
        int                     cpu_signals;            /* IPI events */

+       int                     cpu_prior_signals;      /* Last set of events,
+                                                        * debugging
+                                                        */

        int                     cpu_mcount_off;         /* mcount recursion */
        ast_t                   cpu_pending_ast;
        int                     cpu_type;
        int                     cpu_subtype;
        int                     cpu_threadtype;
        int                     cpu_running;
        int                     cpu_mcount_off;         /* mcount recursion */
        ast_t                   cpu_pending_ast;
        int                     cpu_type;
        int                     cpu_subtype;
        int                     cpu_threadtype;
        int                     cpu_running;

-       struct cpu_core         *cpu_core;              /* cpu's parent core */
-       uint64_t                cpu_rtc_tick_deadline;
-       uint64_t                cpu_rtc_intr_deadline;
-       rtclock_timer_t         cpu_rtc_timer;
-       rtc_nanotime_t          cpu_rtc_nanotime;
+       rtclock_timer_t         rtclock_timer;
+       boolean_t               cpu_is64bit;
+       volatile addr64_t       cpu_active_cr3 __attribute((aligned(64)));
+       union {
+               volatile uint32_t cpu_tlb_invalid;
+               struct {
+                       volatile uint16_t cpu_tlb_invalid_local;
+                       volatile uint16_t cpu_tlb_invalid_global;
+               };
+       };
+       volatile task_map_t     cpu_task_map;
+       volatile addr64_t       cpu_task_cr3;
+       addr64_t                cpu_kernel_cr3;
+       cpu_uber_t              cpu_uber;
+       void                    *cpu_chud;

        void                    *cpu_console_buf;
        void                    *cpu_console_buf;

+       struct x86_lcpu         lcpu;

        struct processor        *cpu_processor;
        struct processor        *cpu_processor;

+#if NCOPY_WINDOWS > 0

        struct cpu_pmap         *cpu_pmap;
        struct cpu_pmap         *cpu_pmap;

-       struct mp_desc_table    *cpu_desc_tablep;
+#endif
+       struct cpu_desc_table   *cpu_desc_tablep;
+       struct fake_descriptor  *cpu_ldtp;

        cpu_desc_index_t        cpu_desc_index;
        cpu_desc_index_t        cpu_desc_index;

+       int                     cpu_ldt;

        boolean_t               cpu_iflag;
        boolean_t               cpu_iflag;

-#ifdef MACH_KDB
-       /* XXX Untested: */
-       int                     cpu_db_pass_thru;
-       vm_offset_t             cpu_db_stacks;
-       struct i386_saved_state *cpu_kdb_saved_state;
-       spl_t                   cpu_kdb_saved_ipl;
-       int                     cpu_kdb_is_slave;
-       int                     cpu_kdb_active;
-#endif /* MACH_KDB */
-        int                     cpu_reserved1;
+       boolean_t               cpu_boot_complete;
+       int                     cpu_hibernate;
+#if NCOPY_WINDOWS > 0
+       vm_offset_t             cpu_copywindow_base;
+       uint64_t                *cpu_copywindow_pdp;
+
+       vm_offset_t             cpu_physwindow_base;
+       uint64_t                *cpu_physwindow_ptep;
+#endif
+       void                    *cpu_hi_iss;
+
+#define HWINTCNT_SIZE 256
+       uint32_t                cpu_hwIntCnt[HWINTCNT_SIZE];    /* Interrupt counts */
+       uint64_t                cpu_dr7; /* debug control register */
+       uint64_t                cpu_int_event_time;     /* intr entry/exit time */
+#if CONFIG_VMX
+       vmx_cpu_t               cpu_vmx;                /* wonderful world of virtualization */
+#endif
+#if CONFIG_MCA
+       struct mca_state        *cpu_mca_state;         /* State at MC fault */
+#endif
+       uint64_t                cpu_uber_arg_store;     /* Double mapped address
+                                                        * of current thread's
+                                                        * uu_arg array.
+                                                        */
+       uint64_t                cpu_uber_arg_store_valid; /* Double mapped
+                                                          * address of pcb
+                                                          * arg store
+                                                          * validity flag.
+                                                          */
+       pal_rtc_nanotime_t      *cpu_nanotime;          /* Nanotime info */
+#if    CONFIG_COUNTERS
+       thread_t                csw_old_thread;
+       thread_t                csw_new_thread;
+#endif /* CONFIG COUNTERS */   
+#if    defined(__x86_64__)
+       uint32_t                cpu_pmap_pcid_enabled;
+       pcid_t                  cpu_active_pcid;
+       pcid_t                  cpu_last_pcid;
+       volatile pcid_ref_t     *cpu_pmap_pcid_coherentp;
+       volatile pcid_ref_t     *cpu_pmap_pcid_coherentp_kernel;
+#define        PMAP_PCID_MAX_PCID      (0x1000)
+       pcid_t                  cpu_pcid_free_hint;
+       pcid_ref_t              cpu_pcid_refcounts[PMAP_PCID_MAX_PCID];
+       pmap_t                  cpu_pcid_last_pmap_dispatched[PMAP_PCID_MAX_PCID];
+#ifdef PCID_STATS
+       uint64_t                cpu_pmap_pcid_flushes;
+       uint64_t                cpu_pmap_pcid_preserves;
+#endif
+#endif /* x86_64 */
+       uint64_t                cpu_max_observed_int_latency;
+       int                     cpu_max_observed_int_latency_vector;
+       uint64_t                debugger_entry_time;
+       volatile boolean_t      cpu_NMI_acknowledged;
+       /* A separate nested interrupt stack flag, to account
+        * for non-nested interrupts arriving while on the interrupt stack
+        * Currently only occurs when AICPM enables interrupts on the
+        * interrupt stack during processor offlining.
+        */
+       uint32_t                cpu_nested_istack;
+       uint32_t                cpu_nested_istack_events;
+       x86_saved_state64_t     *cpu_fatal_trap_state;
+       x86_saved_state64_t     *cpu_post_fatal_trap_state;

 } cpu_data_t;
 
 extern cpu_data_t      *cpu_data_ptr[];  
 extern cpu_data_t      cpu_data_master;  
 
 /* Macro to generate inline bodies to retrieve per-cpu data fields. */
 } cpu_data_t;
 
 extern cpu_data_t      *cpu_data_ptr[];  
 extern cpu_data_t      cpu_data_master;  
 
 /* Macro to generate inline bodies to retrieve per-cpu data fields. */

+#ifndef offsetof

 #define offsetof(TYPE,MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
 #define offsetof(TYPE,MEMBER) ((size_t) &((TYPE *)0)->MEMBER)

+#endif /* offsetof */

 #define CPU_DATA_GET(member,type)                                      \
        type ret;                                                       \
 #define CPU_DATA_GET(member,type)                                      \
        type ret;                                                       \

-       __asm__ volatile ("movl %%gs:%P1,%0"                            \
+       __asm__ volatile ("mov %%gs:%P1,%0"                             \

                : "=r" (ret)                                            \
                : "i" (offsetof(cpu_data_t,member)));                   \
        return ret;
 
                : "=r" (ret)                                            \
                : "i" (offsetof(cpu_data_t,member)));                   \
        return ret;
 

+#define CPU_DATA_GET_INDEX(member,index,type)  \
+       type ret;                                                       \
+       __asm__ volatile ("mov %%gs:(%1),%0"                            \
+               : "=r" (ret)                                            \
+               : "r" (offsetof(cpu_data_t,member[index])));                    \
+       return ret;
+
+#define CPU_DATA_SET(member,value)                                     \
+       __asm__ volatile ("mov %0,%%gs:%P1"                             \
+               :                                                       \
+               : "r" (value), "i" (offsetof(cpu_data_t,member)));
+#define CPU_DATA_XCHG(member,value,type)                               \
+       type ret;                                                       \
+       __asm__ volatile ("xchg %0,%%gs:%P1"                            \
+               : "=r" (ret)                                            \
+               : "i" (offsetof(cpu_data_t,member)), "0" (value));      \
+       return ret;
+

 /*
  * Everyone within the osfmk part of the kernel can use the fast
  * inline versions of these routines.  Everyone outside, must call
 /*
  * Everyone within the osfmk part of the kernel can use the fast
  * inline versions of these routines.  Everyone outside, must call


@@ -156,15 +299,21 @@ get_active_thread(void)
 #define current_thread_fast()          get_active_thread()
 #define current_thread()               current_thread_fast()
 
 #define current_thread_fast()          get_active_thread()
 #define current_thread()               current_thread_fast()
 

-static inline int
-get_preemption_level(void)
+static inline boolean_t
+get_is64bit(void)

 {
 {

-       CPU_DATA_GET(cpu_preemption_level,int)
+       CPU_DATA_GET(cpu_is64bit, boolean_t)

 }
 }

+#if CONFIG_YONAH
+#define cpu_mode_is64bit()             get_is64bit()
+#else
+#define cpu_mode_is64bit()             TRUE
+#endif
+

 static inline int
 static inline int

-get_simple_lock_count(void)
+get_preemption_level(void)

 {
 {

-       CPU_DATA_GET(cpu_simple_lock_count,int)
+       CPU_DATA_GET(cpu_preemption_level,int)

 }
 static inline int
 get_interrupt_level(void)
 }
 static inline int
 get_interrupt_level(void)


@@ -181,11 +330,7 @@ get_cpu_phys_number(void)
 {
        CPU_DATA_GET(cpu_phys_number,int)
 }
 {
        CPU_DATA_GET(cpu_phys_number,int)
 }

-static inline struct
-cpu_core * get_cpu_core(void)
-{
-       CPU_DATA_GET(cpu_core,struct cpu_core *)
-}
+

 
 static inline void
 disable_preemption(void)
 
 static inline void
 disable_preemption(void)


@@ -247,14 +392,10 @@ current_cpu_datap(void)
 static inline cpu_data_t *
 cpu_datap(int cpu)
 {
 static inline cpu_data_t *
 cpu_datap(int cpu)
 {

-       assert(cpu_data_ptr[cpu]);

        return cpu_data_ptr[cpu];
 }
 
 extern cpu_data_t *cpu_data_alloc(boolean_t is_boot_cpu);
        return cpu_data_ptr[cpu];
 }
 
 extern cpu_data_t *cpu_data_alloc(boolean_t is_boot_cpu);

-
-#else  /* !defined(__GNUC__) */
-
-#endif /* defined(__GNUC__) */
+extern void cpu_data_realloc(void);

 
 #endif /* I386_CPU_DATA */
 
 #endif /* I386_CPU_DATA */