x86, um: ... and asm-x86 move

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 208 deletions

diff --git a/include/asm-x86/vm86.h b/include/asm-x86/vm86.h
deleted file mode 100644
index 998bd18eb73..00000000000
--- a/include/asm-x86/vm86.h
+++ /dev/null
@@ -1,208 +0,0 @@
-#ifndef ASM_X86__VM86_H
-#define ASM_X86__VM86_H
-
-/*
- * I'm guessing at the VIF/VIP flag usage, but hope that this is how
- * the Pentium uses them. Linux will return from vm86 mode when both
- * VIF and VIP is set.
- *
- * On a Pentium, we could probably optimize the virtual flags directly
- * in the eflags register instead of doing it "by hand" in vflags...
- *
- * Linus
- */
-
-#include <asm/processor-flags.h>
-
-#define BIOSSEG		0x0f000
-
-#define CPU_086		0
-#define CPU_186		1
-#define CPU_286		2
-#define CPU_386		3
-#define CPU_486		4
-#define CPU_586		5
-
-/*
- * Return values for the 'vm86()' system call
- */
-#define VM86_TYPE(retval)	((retval) & 0xff)
-#define VM86_ARG(retval)	((retval) >> 8)
-
-#define VM86_SIGNAL	0	/* return due to signal */
-#define VM86_UNKNOWN	1	/* unhandled GP fault
-				   - IO-instruction or similar */
-#define VM86_INTx	2	/* int3/int x instruction (ARG = x) */
-#define VM86_STI	3	/* sti/popf/iret instruction enabled
-				   virtual interrupts */
-
-/*
- * Additional return values when invoking new vm86()
- */
-#define VM86_PICRETURN	4	/* return due to pending PIC request */
-#define VM86_TRAP	6	/* return due to DOS-debugger request */
-
-/*
- * function codes when invoking new vm86()
- */
-#define VM86_PLUS_INSTALL_CHECK	0
-#define VM86_ENTER		1
-#define VM86_ENTER_NO_BYPASS	2
-#define	VM86_REQUEST_IRQ	3
-#define VM86_FREE_IRQ		4
-#define VM86_GET_IRQ_BITS	5
-#define VM86_GET_AND_RESET_IRQ	6
-
-/*
- * This is the stack-layout seen by the user space program when we have
- * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
- * is 'kernel_vm86_regs' (see below).
- */
-
-struct vm86_regs {
-/*
- * normal regs, with special meaning for the segment descriptors..
- */
-	long ebx;
-	long ecx;
-	long edx;
-	long esi;
-	long edi;
-	long ebp;
-	long eax;
-	long __null_ds;
-	long __null_es;
-	long __null_fs;
-	long __null_gs;
-	long orig_eax;
-	long eip;
-	unsigned short cs, __csh;
-	long eflags;
-	long esp;
-	unsigned short ss, __ssh;
-/*
- * these are specific to v86 mode:
- */
-	unsigned short es, __esh;
-	unsigned short ds, __dsh;
-	unsigned short fs, __fsh;
-	unsigned short gs, __gsh;
-};
-
-struct revectored_struct {
-	unsigned long __map[8];			/* 256 bits */
-};
-
-struct vm86_struct {
-	struct vm86_regs regs;
-	unsigned long flags;
-	unsigned long screen_bitmap;
-	unsigned long cpu_type;
-	struct revectored_struct int_revectored;
-	struct revectored_struct int21_revectored;
-};
-
-/*
- * flags masks
- */
-#define VM86_SCREEN_BITMAP	0x0001
-
-struct vm86plus_info_struct {
-	unsigned long force_return_for_pic:1;
-	unsigned long vm86dbg_active:1;       /* for debugger */
-	unsigned long vm86dbg_TFpendig:1;     /* for debugger */
-	unsigned long unused:28;
-	unsigned long is_vm86pus:1;	      /* for vm86 internal use */
-	unsigned char vm86dbg_intxxtab[32];   /* for debugger */
-};
-struct vm86plus_struct {
-	struct vm86_regs regs;
-	unsigned long flags;
-	unsigned long screen_bitmap;
-	unsigned long cpu_type;
-	struct revectored_struct int_revectored;
-	struct revectored_struct int21_revectored;
-	struct vm86plus_info_struct vm86plus;
-};
-
-#ifdef __KERNEL__
-
-#include <asm/ptrace.h>
-
-/*
- * This is the (kernel) stack-layout when we have done a "SAVE_ALL" from vm86
- * mode - the main change is that the old segment descriptors aren't
- * useful any more and are forced to be zero by the kernel (and the
- * hardware when a trap occurs), and the real segment descriptors are
- * at the end of the structure. Look at ptrace.h to see the "normal"
- * setup. For user space layout see 'struct vm86_regs' above.
- */
-
-struct kernel_vm86_regs {
-/*
- * normal regs, with special meaning for the segment descriptors..
- */
-	struct pt_regs pt;
-/*
- * these are specific to v86 mode:
- */
-	unsigned short es, __esh;
-	unsigned short ds, __dsh;
-	unsigned short fs, __fsh;
-	unsigned short gs, __gsh;
-};
-
-struct kernel_vm86_struct {
-	struct kernel_vm86_regs regs;
-/*
- * the below part remains on the kernel stack while we are in VM86 mode.
- * 'tss.esp0' then contains the address of VM86_TSS_ESP0 below, and when we
- * get forced back from VM86, the CPU and "SAVE_ALL" will restore the above
- * 'struct kernel_vm86_regs' with the then actual values.
- * Therefore, pt_regs in fact points to a complete 'kernel_vm86_struct'
- * in kernelspace, hence we need not reget the data from userspace.
- */
-#define VM86_TSS_ESP0 flags
-	unsigned long flags;
-	unsigned long screen_bitmap;
-	unsigned long cpu_type;
-	struct revectored_struct int_revectored;
-	struct revectored_struct int21_revectored;
-	struct vm86plus_info_struct vm86plus;
-	struct pt_regs *regs32;   /* here we save the pointer to the old regs */
-/*
- * The below is not part of the structure, but the stack layout continues
- * this way. In front of 'return-eip' may be some data, depending on
- * compilation, so we don't rely on this and save the pointer to 'oldregs'
- * in 'regs32' above.
- * However, with GCC-2.7.2 and the current CFLAGS you see exactly this:
-
-	long return-eip;        from call to vm86()
-	struct pt_regs oldregs;  user space registers as saved by syscall
- */
-};
-
-#ifdef CONFIG_VM86
-
-void handle_vm86_fault(struct kernel_vm86_regs *, long);
-int handle_vm86_trap(struct kernel_vm86_regs *, long, int);
-struct pt_regs *save_v86_state(struct kernel_vm86_regs *);
-
-struct task_struct;
-void release_vm86_irqs(struct task_struct *);
-
-#else
-
-#define handle_vm86_fault(a, b)
-#define release_vm86_irqs(a)
-
-static inline int handle_vm86_trap(struct kernel_vm86_regs *a, long b, int c)
-{
-	return 0;
-}
-
-#endif /* CONFIG_VM86 */
-
-#endif /* __KERNEL__ */
-
-#endif /* ASM_X86__VM86_H */