1c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifndef _LINUX_VM86_H 2c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define _LINUX_VM86_H 3c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 4c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 5c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * I'm guessing at the VIF/VIP flag usage, but hope that this is how 6c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * the Pentium uses them. Linux will return from vm86 mode when both 7c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * VIF and VIP is set. 8c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 9c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * On a Pentium, we could probably optimize the virtual flags directly 10c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * in the eflags register instead of doing it "by hand" in vflags... 11c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 12c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Linus 13c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 14c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 15c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define TF_MASK 0x00000100 16c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IF_MASK 0x00000200 17c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define IOPL_MASK 0x00003000 18c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define NT_MASK 0x00004000 19c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_VM86 20c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM_MASK 0x00020000 21c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#else 22c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM_MASK 0 /* ignored */ 23c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 24c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define AC_MASK 0x00040000 25c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VIF_MASK 0x00080000 /* virtual interrupt flag */ 26c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VIP_MASK 0x00100000 /* virtual interrupt pending */ 27c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ID_MASK 0x00200000 28c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 29c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define BIOSSEG 0x0f000 30c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 31c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CPU_086 0 32c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CPU_186 1 33c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CPU_286 2 34c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CPU_386 3 35c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CPU_486 4 36c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CPU_586 5 37c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 38c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 39c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Return values for the 'vm86()' system call 40c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 41c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_TYPE(retval) ((retval) & 0xff) 42c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_ARG(retval) ((retval) >> 8) 43c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 44c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_SIGNAL 0 /* return due to signal */ 45c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_UNKNOWN 1 /* unhandled GP fault - IO-instruction or similar */ 46c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_INTx 2 /* int3/int x instruction (ARG = x) */ 47c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_STI 3 /* sti/popf/iret instruction enabled virtual interrupts */ 48c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 49c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 50c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Additional return values when invoking new vm86() 51c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 52c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_PICRETURN 4 /* return due to pending PIC request */ 53c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_TRAP 6 /* return due to DOS-debugger request */ 54c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 55c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 56c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * function codes when invoking new vm86() 57c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 58c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_PLUS_INSTALL_CHECK 0 59c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_ENTER 1 60c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_ENTER_NO_BYPASS 2 61c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_REQUEST_IRQ 3 62c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_FREE_IRQ 4 63c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_GET_IRQ_BITS 5 64c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_GET_AND_RESET_IRQ 6 65c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 66c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 67c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * This is the stack-layout seen by the user space program when we have 68c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout 69c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * is 'kernel_vm86_regs' (see below). 70c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 71c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 72c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct vm86_regs { 73c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 74c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * normal regs, with special meaning for the segment descriptors.. 75c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 76c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long ebx; 77c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long ecx; 78c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long edx; 79c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long esi; 80c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long edi; 81c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long ebp; 82c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long eax; 83c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long __null_ds; 84c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long __null_es; 85c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long __null_fs; 86c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long __null_gs; 87c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long orig_eax; 88c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long eip; 89c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short cs, __csh; 90c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long eflags; 91c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long esp; 92c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short ss, __ssh; 93c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 94c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * these are specific to v86 mode: 95c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 96c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short es, __esh; 97c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short ds, __dsh; 98c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short fs, __fsh; 99c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short gs, __gsh; 100c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 101c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 102c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct revectored_struct { 103c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long __map[8]; /* 256 bits */ 104c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 105c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 106c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct vm86_struct { 107c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct vm86_regs regs; 108c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long flags; 109c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long screen_bitmap; 110c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long cpu_type; 111c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct revectored_struct int_revectored; 112c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct revectored_struct int21_revectored; 113c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 114c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 115c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 116c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * flags masks 117c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 118c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_SCREEN_BITMAP 0x0001 119c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 120c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct vm86plus_info_struct { 121c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long force_return_for_pic:1; 122c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long vm86dbg_active:1; /* for debugger */ 123c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long vm86dbg_TFpendig:1; /* for debugger */ 124c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long unused:28; 125c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long is_vm86pus:1; /* for vm86 internal use */ 126c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned char vm86dbg_intxxtab[32]; /* for debugger */ 127c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 128c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 129c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct vm86plus_struct { 130c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct vm86_regs regs; 131c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long flags; 132c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long screen_bitmap; 133c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long cpu_type; 134c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct revectored_struct int_revectored; 135c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct revectored_struct int21_revectored; 136c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct vm86plus_info_struct vm86plus; 137c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 138c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 139c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef __KERNEL__ 140c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 141c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * This is the (kernel) stack-layout when we have done a "SAVE_ALL" from vm86 142c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * mode - the main change is that the old segment descriptors aren't 143c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * useful any more and are forced to be zero by the kernel (and the 144c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * hardware when a trap occurs), and the real segment descriptors are 145c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * at the end of the structure. Look at ptrace.h to see the "normal" 146c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * setup. For user space layout see 'struct vm86_regs' above. 147c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 148c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <asm/ptrace.h> 149c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 150c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct kernel_vm86_regs { 151c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 152c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * normal regs, with special meaning for the segment descriptors.. 153c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 154c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct pt_regs pt; 155c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 156c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * these are specific to v86 mode: 157c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 158c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short es, __esh; 159c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short ds, __dsh; 160c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short fs, __fsh; 161c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned short gs, __gsh; 162c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 163c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 164c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct kernel_vm86_struct { 165c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct kernel_vm86_regs regs; 166c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 167c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * the below part remains on the kernel stack while we are in VM86 mode. 168c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 'tss.esp0' then contains the address of VM86_TSS_ESP0 below, and when we 169c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * get forced back from VM86, the CPU and "SAVE_ALL" will restore the above 170c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 'struct kernel_vm86_regs' with the then actual values. 171c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Therefore, pt_regs in fact points to a complete 'kernel_vm86_struct' 172c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * in kernelspace, hence we need not reget the data from userspace. 173c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 174c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define VM86_TSS_ESP0 flags 175c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long flags; 176c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long screen_bitmap; 177c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long cpu_type; 178c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct revectored_struct int_revectored; 179c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct revectored_struct int21_revectored; 180c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct vm86plus_info_struct vm86plus; 181c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct pt_regs *regs32; /* here we save the pointer to the old regs */ 182c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 183c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * The below is not part of the structure, but the stack layout continues 184c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * this way. In front of 'return-eip' may be some data, depending on 185c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * compilation, so we don't rely on this and save the pointer to 'oldregs' 186c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * in 'regs32' above. 187c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * However, with GCC-2.7.2 and the current CFLAGS you see exactly this: 188c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 189c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru long return-eip; from call to vm86() 190c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct pt_regs oldregs; user space registers as saved by syscall 191c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 192c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 193c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 194c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_VM86 195c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 196c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruvoid handle_vm86_fault(struct kernel_vm86_regs *, long); 197c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruint handle_vm86_trap(struct kernel_vm86_regs *, long, int); 198c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 199c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct task_struct; 200c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruvoid release_vm86_irqs(struct task_struct *); 201c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 202c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#else 203c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 204c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define handle_vm86_fault(a, b) 205c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define release_vm86_irqs(a) 206c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 207c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline int handle_vm86_trap(struct kernel_vm86_regs *a, long b, int c) { 208c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return 0; 209c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 210c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 211c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif /* CONFIG_VM86 */ 212c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 213c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif /* __KERNEL__ */ 214c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 215c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 216