77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
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/*
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* Copyright 2002-2009, Axel Dörfler, axeld@pinc-software.de.
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* Distributed under the terms of the MIT License.
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*
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* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_ARCH_X86_32_IFRAME_H
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#define _KERNEL_ARCH_X86_32_IFRAME_H
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struct iframe {
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uint32 type; // iframe type
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uint32 gs;
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uint32 fs;
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uint32 es;
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uint32 ds;
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uint32 edi;
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uint32 esi;
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uint32 ebp;
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uint32 esp;
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uint32 ebx;
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uint32 edx;
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uint32 ecx;
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uint32 eax;
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uint32 orig_eax;
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uint32 orig_edx;
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uint32 vector;
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uint32 error_code;
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uint32 eip;
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uint32 cs;
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uint32 flags;
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// user_esp and user_ss are only present when the iframe is a userland
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// iframe (IFRAME_IS_USER()). A kernel iframe is shorter.
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uint32 user_esp;
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uint32 user_ss;
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};
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struct vm86_iframe {
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uint32 type; // iframe type
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uint32 __null_gs;
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uint32 __null_fs;
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uint32 __null_es;
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uint32 __null_ds;
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uint32 edi;
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uint32 esi;
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uint32 ebp;
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uint32 __kern_esp;
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uint32 ebx;
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uint32 edx;
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uint32 ecx;
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uint32 eax;
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uint32 orig_eax;
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uint32 orig_edx;
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uint32 vector;
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uint32 error_code;
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uint32 eip;
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uint16 cs, __csh;
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uint32 flags;
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uint32 esp;
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uint16 ss, __ssh;
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/* vm86 mode specific part */
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uint16 es, __esh;
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uint16 ds, __dsh;
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uint16 fs, __fsh;
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uint16 gs, __gsh;
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};
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#define IFRAME_IS_USER(f) ((f)->cs == USER_CODE_SEG \
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|| ((f)->flags & 0x20000) != 0)
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#define IFRAME_IS_VM86(f) (((f)->flags & 0x20000) != 0)
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#endif /* _KERNEL_ARCH_X86_32_IFRAME_H */
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