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Currently _KERNEL can mean either a) use kernel C namespace or b)

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code runs in priviledged mode.  Introduce _HARDKERNEL and _SOFTKERNEL
to be able to say if the code runs in priviledged mode.

Currently used by rump, but Xen should probably set them too.
This commit is contained in:
pooka 2009-01-11 21:38:19 +00:00
parent 91306aae6f
commit 180d04d26b
1 changed files with 13 additions and 1 deletions
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14
sys/sys/param.h
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@ -1,4 +1,4 @@
/* $NetBSD: param.h,v 1.337 2009/01/11 03:12:21 christos Exp $ */
/* $NetBSD: param.h,v 1.338 2009/01/11 21:38:19 pooka Exp $ */
/*-
* Copyright (c) 1982, 1986, 1989, 1993
@ -395,6 +395,18 @@
#define UBC_NWINS 1024
#endif
/*
* There macros determine if we are running in protected mode or not.
* _HARDKERNEL: code uses kernel namespace and runs in hw priviledged mode
* _SOFTKERNEL: code uses kernel namespace but runs without hw priviledges
*/
#if defined(_KERNEL) && !defined(_RUMPKERNEL)
#define _HARDKERNEL
#endif
#if defined(_KERNEL) && defined(_RUMPKERNEL)
#define _SOFTKERNEL
#endif
#ifdef _KERNEL
/*
* macro to convert from milliseconds to hz without integer overflow