freebsd-src/usr.sbin/bhyve/bootrom.h
Mark Johnston 43caa2e805 bhyve: Make boot ROM handling more consistent
- On amd64, deprecate lpc.bootrom and lpc.bootvars.  Use top-level
  config variables instead.
- Introduce a generic predicate which can be used to determine whether
  the guest has a boot ROM.

Reviewed by:	corvink, jhb
MFC after:	2 weeks
Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D46282
2024-08-19 13:55:47 +00:00

52 lines
1.8 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2015 Neel Natu <neel@freebsd.org>
* All rights reserved.
*
* 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 OR CONTRIBUTORS 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 _BOOTROM_H_
#define _BOOTROM_H_
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <limits.h>
#include "config.h"
struct vmctx;
void init_bootrom(struct vmctx *ctx);
enum {
BOOTROM_ALLOC_TOP = 0x80,
_FORCE_INT = INT_MIN,
};
int bootrom_alloc(struct vmctx *ctx, size_t len, int prot, int flags,
char **region_out, uint64_t *gpa_out);
bool bootrom_boot(void);
int bootrom_loadrom(struct vmctx *ctx);
#endif