49 lines
787 B
C
49 lines
787 B
C
/*
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* Copyright 2012, Alex Smith, alex@alex-smith.me.uk.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _KERNEL_ARCH_X86_64_IFRAME_H
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#define _KERNEL_ARCH_X86_64_IFRAME_H
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struct iframe {
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uint64 type;
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uint64 r15;
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uint64 r14;
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uint64 r13;
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uint64 r12;
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uint64 r11;
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uint64 r10;
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uint64 r9;
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uint64 r8;
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uint64 bp;
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uint64 si;
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uint64 di;
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uint64 dx;
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uint64 cx;
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uint64 bx;
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uint64 ax;
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uint64 orig_rax;
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uint64 vector;
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uint64 error_code;
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uint64 ip;
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uint64 cs;
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uint64 flags;
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// SP and SS are unconditionally present on x86_64, make both names
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// available.
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union {
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uint64 sp;
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uint64 user_sp;
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};
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union {
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uint64 ss;
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uint64 user_ss;
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};
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} _PACKED;
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#define IFRAME_IS_USER(f) (((f)->cs & DPL_USER) == DPL_USER)
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#endif /* _KERNEL_ARCH_X86_64_IFRAME_H */
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