ia64/linux-2.6.18-xen.hg

view include/asm-i386/ptrace.h @ 452:c7ed6fe5dca0

kexec: dont initialise regions in reserve_memory()

There is no need to initialise efi_memmap_res and boot_param_res in
reserve_memory() for the initial xen domain as it is done in
machine_kexec_setup_resources() using values from the kexec hypercall.

Signed-off-by: Simon Horman <horms@verge.net.au>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Feb 28 10:55:18 2008 +0000 (2008-02-28)
parents 831230e53067
children
line source
1 #ifndef _I386_PTRACE_H
2 #define _I386_PTRACE_H
4 #define EBX 0
5 #define ECX 1
6 #define EDX 2
7 #define ESI 3
8 #define EDI 4
9 #define EBP 5
10 #define EAX 6
11 #define DS 7
12 #define ES 8
13 #define FS 9
14 #define GS 10
15 #define ORIG_EAX 11
16 #define EIP 12
17 #define CS 13
18 #define EFL 14
19 #define UESP 15
20 #define SS 16
21 #define FRAME_SIZE 17
23 /* this struct defines the way the registers are stored on the
24 stack during a system call. */
26 struct pt_regs {
27 long ebx;
28 long ecx;
29 long edx;
30 long esi;
31 long edi;
32 long ebp;
33 long eax;
34 int xds;
35 int xes;
36 long orig_eax;
37 long eip;
38 int xcs;
39 long eflags;
40 long esp;
41 int xss;
42 };
44 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
45 #define PTRACE_GETREGS 12
46 #define PTRACE_SETREGS 13
47 #define PTRACE_GETFPREGS 14
48 #define PTRACE_SETFPREGS 15
49 #define PTRACE_GETFPXREGS 18
50 #define PTRACE_SETFPXREGS 19
52 #define PTRACE_OLDSETOPTIONS 21
54 #define PTRACE_GET_THREAD_AREA 25
55 #define PTRACE_SET_THREAD_AREA 26
57 #define PTRACE_SYSEMU 31
58 #define PTRACE_SYSEMU_SINGLESTEP 32
60 #ifdef __KERNEL__
62 #include <asm/vm86.h>
64 struct task_struct;
65 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
67 /*
68 * user_mode_vm(regs) determines whether a register set came from user mode.
69 * This is true if V8086 mode was enabled OR if the register set was from
70 * protected mode with RPL-3 CS value. This tricky test checks that with
71 * one comparison. Many places in the kernel can bypass this full check
72 * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
73 */
74 static inline int user_mode(struct pt_regs *regs)
75 {
76 return (regs->xcs & 3) != 0;
77 }
78 static inline int user_mode_vm(struct pt_regs *regs)
79 {
80 return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
81 }
82 #define instruction_pointer(regs) ((regs)->eip)
83 #if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
84 extern unsigned long profile_pc(struct pt_regs *regs);
85 #else
86 #define profile_pc(regs) instruction_pointer(regs)
87 #endif
88 #endif /* __KERNEL__ */
90 #endif