| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
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| 2 | /* ----------------------------------------------------------------------- |
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| 3 | * |
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| 4 | * Copyright 2009 Intel Corporation; author H. Peter Anvin |
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| 5 | * |
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| 6 | * ----------------------------------------------------------------------- */ |
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| 7 | |
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| 8 | /* |
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| 9 | * Simple helper function for initializing a register set. |
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| 10 | * |
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| 11 | * Note that this sets EFLAGS_CF in the input register set; this |
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| 12 | * makes it easier to catch functions which do nothing but don't |
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| 13 | * explicitly set CF. |
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| 14 | */ |
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| 15 | |
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| 16 | #include "boot.h" |
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| 17 | #include "string.h" |
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| 18 | |
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| 19 | void initregs(struct biosregs *reg) |
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| 20 | { |
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| 21 | memset(reg, 0, sizeof(*reg)); |
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| 22 | reg->eflags |= X86_EFLAGS_CF; |
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| 23 | reg->ds = ds(); |
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| 24 | reg->es = ds(); |
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| 25 | reg->fs = fs(); |
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| 26 | reg->gs = gs(); |
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| 27 | } |
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| 28 | |
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