freebsd-skq/stand/efi/include/efizfs.h
imp 40b4dd02fe Provide a more direct interface to tell ZFS what the preferred handle
is. We tell the ZFS code now, and it checks rather than having a
callback to do the checks.

This will allow us to have a more graceful fallback code. In the
future, it's anticipated that we may fallback to a more global search
(or implement a command to do so) when reqeusted by the user, or we
detect a violation of the UEFI Boot Manager protocol severe enough to
warrant this backstop. For now, it just allows us to get rid of img as
a global.

Sponsored by: Netflix
2018-06-15 19:07:26 +00:00

56 lines
1.9 KiB
C

/*-
* Copyright (c) 2016 Eric McCorkle
* 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 AND CONTRIBUTORS ``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.
*
* $FreeBSD$
*/
#include <stdint.h>
#include <stdbool.h>
#ifndef _EFIZFS_H_
#define _EFIZFS_H_
#ifdef EFI_ZFS_BOOT
typedef STAILQ_HEAD(zfsinfo_list, zfsinfo) zfsinfo_list_t;
typedef struct zfsinfo
{
STAILQ_ENTRY(zfsinfo) zi_link;
EFI_HANDLE zi_handle;
uint64_t zi_pool_guid;
} zfsinfo_t;
extern uint64_t pool_guid;
void efi_zfs_probe(void);
EFI_HANDLE efizfs_get_handle_by_guid(uint64_t);
bool efizfs_get_guid_by_handle(EFI_HANDLE, uint64_t *);
zfsinfo_list_t *efizfs_get_zfsinfo_list(void);
void efizfs_set_preferred(EFI_HANDLE);
#endif
#endif