PseudoKernel.h

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*
    2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_LICENSE_HEADER_START@
    5  * 
    6  * The contents of this file constitute Original Code as defined in and
    7  * are subject to the Apple Public Source License Version 1.1 (the
    8  * "License").  You may not use this file except in compliance with the
    9  * License.  Please obtain a copy of the License at
   10  * http://www.apple.com/publicsource and read it before using this file.
   11  * 
   12  * This Original Code and all software distributed under the License are
   13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
   17  * License for the specific language governing rights and limitations
   18  * under the License.
   19  * 
   20  * @APPLE_LICENSE_HEADER_END@
   21  */
   22 /*
   23         File:           PseudoKernelPriv.h
   24 
   25         Contains:       Interfaces for Classic environment's PseudoKernel
   26 
   27         Copyright:      (c) 2000 Apple Computer, Inc. All rights reserved.
   28 */
   29 
   30 #include <libkern/OSTypes.h>
   31 
   32 #include <ppc/exception.h>
   33 
   34 /* Support firmware PseudoKernel FastTrap architectural extension */
   35 
   36 #define bbMaxTrap (16 * sizeof(long))
   37 #define bbRFITrap bbMaxTrap
   38 
   39 extern int bb_enable_bluebox(struct savearea *);
   40 extern int bb_disable_bluebox(struct savearea *);
   41 extern int bb_settaskenv(struct savearea *);
   42 
   43 struct BlueExceptionDataArea {
   44         UInt32                          srr0;                                   // OUT PC at time of exception, IN return address
   45         UInt32                          srr1;                                   // OUT/IN msr FE0, BE, SE and FE1 bits to restore on exit
   46         UInt32                          sprg0;                                  // OUT R1 set to this value
   47         UInt32                          sprg1;                                  // OUT/IN R1 restored to this value
   48 };
   49 typedef struct BlueExceptionDataArea * BlueExceptionDataAreaPtr;
   50 typedef struct BlueExceptionDataArea BEDA_t;
   51 
   52 /*
   53         The Blue Thread, which is running MacOS, needs to be able to handle Traps, SCs and interrupts.
   54 */
   55 struct BlueThreadTrapDescriptor {
   56         UInt32                          TrapVector;                             // 0=Trap
   57         UInt32                          SysCallVector;                  // 1=SysCall
   58         UInt32                          InterruptVector;                // 2=Interrupt
   59         UInt32                          PendingIntVector;               // 3=Pending interrupt
   60         BEDA_t                          exceptionInfo;                  // Save registers at time of exception (trap/syscall)
   61         UInt32                          InterruptControlWord;   // Holds context state and backup CR2 bits
   62         UInt32                          NewExitState;                   // New run state when exiting PseudoKernel
   63         UInt32                          testIntMask;                    // Mask for a pending alternate context interrupt in backup CR2
   64         UInt32                          postIntMask;                    // Mask to post an interrupt
   65 };
   66 typedef struct BlueThreadTrapDescriptor * BlueThreadTrapDescriptorPtr;
   67 typedef struct BlueThreadTrapDescriptor BTTD_t;
   68         
   69 enum {
   70         // The following define the UInt32 gInterruptState
   71         kInUninitialized        =       0,                      // State not yet initialized
   72         kInPseudoKernel         =       1,                      // Currently executing within pseudo kernel
   73         kInSystemContext        =       2,                      // Currently executing within the system (emulator) context
   74         kInAlternateContext     =       3,                      // Currently executing within an alternate (native) context
   75         kInExceptionHandler     =       4,                      // Currently executing an exception handler
   76         kOutsideBlue            =       5,                      // Currently executing outside of the Blue thread
   77         kNotifyPending          =       6,                      // Pending Notify Interrupt
   78 
   79         kInterruptStateMask     =       0x000F0000,     // Mask to extract interrupt state from gInterruptState
   80         kInterruptStateShift    =       16,             // Shift count to align interrupt state
   81 
   82         kBackupCR2Mask          =       0x0000000F,     // Mask to extract backup CR2 from gInterruptState
   83         kCR2ToBackupShift       =       31-11,          // Shift count to align CR2 into the backup CR2 of gInterruptState
   84                                                                                 //  (and vice versa)
   85         kCR2Mask                        =       0x00F00000      // Mask to extract CR2 from the PPC CR register 
   86 };
   87 
   88 struct bbRupt {
   89         struct ReturnHandler    rh;                     /* Return handler address */
   90 };
   91 typedef struct bbRupt bbRupt;

Cache object: 99a20356bf0305f43b1ca22177fa6b6c

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/osfmk/ppc/PseudoKernel.h

FreeBSD/Linux Kernel Cross Reference
sys/osfmk/ppc/PseudoKernel.h