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/* $NetBSD: msan.h,v 1.2 2020/09/09 16:29:59 maxv Exp $ */
/*
* Copyright (c) 2019-2020 Maxime Villard, m00nbsd.net
* All rights reserved.
*
* This code is part of the KMSAN subsystem of the NetBSD kernel.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _SYS_MSAN_H_
#define _SYS_MSAN_H_
#ifdef KMSAN
#include <sys/_bus_dma.h>
#include <sys/types.h>
#define KMSAN_STATE_UNINIT 0xFF
#define KMSAN_STATE_INITED 0x00
#define KMSAN_TYPE_STACK 0
#define KMSAN_TYPE_KMEM 1
#define KMSAN_TYPE_MALLOC 2
#define KMSAN_TYPE_UMA 3
#define KMSAN_TYPE_MAX 3
#define KMSAN_RET_ADDR (uintptr_t)__builtin_return_address(0)
union ccb;
struct bio;
struct mbuf;
struct memdesc;
void kmsan_init(void);
void kmsan_shadow_map(vm_offset_t, size_t);
void kmsan_thread_alloc(struct thread *);
void kmsan_thread_free(struct thread *);
void kmsan_bus_dmamap_sync(struct memdesc *, bus_dmasync_op_t);
void kmsan_orig(const void *, size_t, int, uintptr_t);
void kmsan_mark(const void *, size_t, uint8_t);
void kmsan_mark_bio(const struct bio *, uint8_t);
void kmsan_mark_mbuf(const struct mbuf *, uint8_t);
void kmsan_check(const void *, size_t, const char *);
void kmsan_check_bio(const struct bio *, const char *);
void kmsan_check_ccb(const union ccb *, const char *);
void kmsan_check_mbuf(const struct mbuf *, const char *);
#else
#define kmsan_init(u)
#define kmsan_shadow_map(a, s)
#define kmsan_thread_alloc(td)
#define kmsan_thread_free(l)
#define kmsan_dma_sync(m, a, s, o)
#define kmsan_dma_load(m, b, s, o)
#define kmsan_orig(p, l, c, a)
#define kmsan_mark(p, l, c)
#define kmsan_mark_bio(b, c)
#define kmsan_mark_mbuf(m, c)
#define kmsan_check(b, s, d)
#define kmsan_check_bio(b, d)
#define kmsan_check_ccb(c, d)
#define kmsan_check_mbuf(m, d)
#define kmsan_bus_dmamap_sync(d, op)
#endif
#endif /* !_SYS_MSAN_H_ */
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