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/* $Id: the-darwin-kernel.h $ */
/** @file
* IPRT - Include all necessary headers for the Darwing kernel.
*/
/*
* Copyright (C) 2006-2020 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
#ifndef IPRT_INCLUDED_SRC_r0drv_darwin_the_darwin_kernel_h
#define IPRT_INCLUDED_SRC_r0drv_darwin_the_darwin_kernel_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
/* Problematic header(s) containing conflicts with IPRT first. (FreeBSD has fixed these ages ago.) */
#define __STDC_CONSTANT_MACROS
#define __STDC_LIMIT_MACROS
#include <sys/param.h>
#include <mach/vm_param.h>
#undef ALIGN
#undef MIN
#undef MAX
#undef PAGE_SIZE
#undef PAGE_SHIFT
#undef PVM
/* Include the IPRT definitions of the conflicting #defines & typedefs. */
#include <iprt/cdefs.h>
#include <iprt/types.h>
#include <iprt/param.h>
/* After including cdefs, we can check that this really is Darwin. */
#ifndef RT_OS_DARWIN
# error "RT_OS_DARWIN must be defined!"
#endif
#if defined(__clang__) || RT_GNUC_PREREQ(4, 4)
# pragma GCC diagnostic push
#endif
#if defined(__clang__) || RT_GNUC_PREREQ(4, 2)
# pragma GCC diagnostic ignored "-Wc++11-extensions"
# pragma GCC diagnostic ignored "-Wc99-extensions"
# pragma GCC diagnostic ignored "-Wextra-semi"
# pragma GCC diagnostic ignored "-Wzero-length-array"
# pragma GCC diagnostic ignored "-Wgnu-zero-variadic-macro-arguments"
#endif
/* now we're ready for including the rest of the Darwin headers. */
#include <kern/thread.h>
#include <kern/clock.h>
#include <kern/sched_prim.h>
#include <kern/locks.h>
#if defined(RT_ARCH_X86) && MAC_OS_X_VERSION_MIN_REQUIRED < 1060
# include <i386/mp_events.h>
#endif
#include <libkern/libkern.h>
#include <libkern/sysctl.h>
#include <libkern/version.h>
#include <mach/thread_act.h>
#include <mach/vm_map.h>
#include <mach/vm_region.h>
#include <pexpert/pexpert.h>
#include <sys/conf.h>
#include <sys/errno.h>
#include <sys/ioccom.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <sys/fcntl.h>
#include <IOKit/IOTypes.h>
#include <IOKit/IOLib.h> /* Note! Has Assert down as a function. */
#include <IOKit/IOMemoryDescriptor.h>
#include <IOKit/IOBufferMemoryDescriptor.h>
#include <IOKit/IOMapper.h>
#if defined(__clang__) || RT_GNUC_PREREQ(4, 4)
# pragma GCC diagnostic pop
#endif
/* See osfmk/kern/ast.h. */
#ifndef AST_PREEMPT
# define AST_PREEMPT UINT32_C(1)
# define AST_QUANTUM UINT32_C(2)
# define AST_URGENT UINT32_C(4)
#endif
/* This flag was added in 10.6, it seems. Should be harmless in earlier
releases... */
#if __MAC_OS_X_VERSION_MAX_ALLOWED < 1060
# define kIOMemoryMapperNone UINT32_C(0x800)
#endif
/* This flag was added in 10.8.2, it seems. */
#if __MAC_OS_X_VERSION_MAX_ALLOWED < 1082
# define kIOMemoryHostPhysicallyContiguous UINT32_C(0x00000080)
#endif
/** @name Macros for preserving EFLAGS.AC (despair / paranoid)
* @remarks Unlike linux, we have to restore it unconditionally on darwin.
* @{ */
#include <iprt/asm-amd64-x86.h>
#include <iprt/x86.h>
#define IPRT_DARWIN_SAVE_EFL_AC() RTCCUINTREG const fSavedEfl = ASMGetFlags();
#define IPRT_DARWIN_RESTORE_EFL_AC() ASMSetFlags(fSavedEfl)
#define IPRT_DARWIN_RESTORE_EFL_ONLY_AC() ASMChangeFlags(~X86_EFL_AC, fSavedEfl & X86_EFL_AC)
#define IPRT_DARWIN_RESTORE_EFL_ONLY_AC_EX(a_fSavedEfl) ASMChangeFlags(~X86_EFL_AC, (a_fSavedEfl) & X86_EFL_AC)
/** @} */
RT_C_DECLS_BEGIN
/* mach/vm_types.h */
typedef struct pmap *pmap_t;
/* vm/vm_kern.h */
extern vm_map_t kernel_map;
/* vm/pmap.h */
extern pmap_t kernel_pmap;
/* kern/task.h */
extern vm_map_t get_task_map(task_t);
/* osfmk/i386/pmap.h */
extern ppnum_t pmap_find_phys(pmap_t, addr64_t);
/* vm/vm_map.h */
extern kern_return_t vm_map_wire(vm_map_t, vm_map_offset_t, vm_map_offset_t, vm_prot_t, boolean_t);
extern kern_return_t vm_map_unwire(vm_map_t, vm_map_offset_t, vm_map_offset_t, boolean_t);
/* mach/i386/thread_act.h */
extern kern_return_t thread_terminate(thread_t);
/* osfmk/i386/mp.h */
extern void mp_rendezvous(void (*)(void *), void (*)(void *), void (*)(void *), void *);
extern void mp_rendezvous_no_intrs(void (*)(void *), void *);
/* osfmk/i386/cpu_data.h */
struct my_cpu_data_x86
{
struct my_cpu_data_x86 *cpu_this;
thread_t cpu_active_thread;
void *cpu_int_state;
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_simple_lock_count;
int cpu_interrupt_level;
int cpu_number;
int cpu_phys_number;
cpu_id_t cpu_id;
int cpu_signals;
int cpu_mcount_off;
/*ast_t*/uint32_t cpu_pending_ast;
int cpu_type;
int cpu_subtype;
int cpu_threadtype;
int cpu_running;
};
/* osfmk/i386/cpu_number.h */
extern int cpu_number(void);
/* osfmk/vm/vm_user.c */
extern kern_return_t vm_protect(vm_map_t, vm_offset_t, vm_size_t, boolean_t, vm_prot_t);
/*extern kern_return_t vm_region(vm_map_t, vm_address_t *, vm_size_t *, vm_region_flavor_t, vm_region_info_t,
mach_msg_type_number_t *, mach_port_t *);*/
/* i386/machine_routines.h */
extern int ml_get_max_cpus(void);
RT_C_DECLS_END
/*
* Internals of the Darwin Ring-0 IPRT.
*/
RT_C_DECLS_BEGIN
/* initterm-r0drv-darwin.cpp. */
typedef uint32_t * (*PFNR0DARWINASTPENDING)(void);
typedef void (*PFNR0DARWINCPUINTERRUPT)(int);
extern lck_grp_t *g_pDarwinLockGroup;
extern PFNR0DARWINASTPENDING g_pfnR0DarwinAstPending;
extern PFNR0DARWINCPUINTERRUPT g_pfnR0DarwinCpuInterrupt;
#ifdef DEBUG /* Used once for debugging memory issues (see #9466). */
typedef kern_return_t (*PFNR0DARWINVMFAULTEXTERNAL)(vm_map_t, vm_map_offset_t, vm_prot_t, boolean_t, int, pmap_t, vm_map_offset_t);
extern PFNR0DARWINVMFAULTEXTERNAL g_pfnR0DarwinVmFaultExternal;
#endif
/* threadpreempt-r0drv-darwin.cpp */
int rtThreadPreemptDarwinInit(void);
void rtThreadPreemptDarwinTerm(void);
RT_C_DECLS_END
/**
* Converts from nanoseconds to Darwin absolute time units.
* @returns Darwin absolute time.
* @param u64Nano Time interval in nanoseconds
*/
DECLINLINE(uint64_t) rtDarwinAbsTimeFromNano(const uint64_t u64Nano)
{
uint64_t u64AbsTime;
nanoseconds_to_absolutetime(u64Nano, &u64AbsTime);
return u64AbsTime;
}
#include <iprt/err.h>
/**
* Convert from mach kernel return code to IPRT status code.
* @todo put this where it belongs! (i.e. in a separate file and prototype in iprt/err.h)
*/
DECLINLINE(int) RTErrConvertFromMachKernReturn(kern_return_t rc)
{
switch (rc)
{
case KERN_SUCCESS: return VINF_SUCCESS;
default: return VERR_GENERAL_FAILURE;
}
}
#endif /* !IPRT_INCLUDED_SRC_r0drv_darwin_the_darwin_kernel_h */
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