4914ee11ae
illumos update: https://www.illumos.org/issues/10598 Add map-vdisk and unmap-vdisk commands to create virtual disk interface on top of file. This will allow to use disk image from file system to load and start the kernel. By mapping file, we create vdiskX device, the device will be listed by lsdev [-v] and can be accessed directly as ls vdisk0p1:/path or can be used as value for currdev variable. vdisk strategy function does not use bcache as we have bcache used with backing file. vdisk can be unmapped when all consumers have closed the open files. In first iteration we do not support the zfs images because zfs pools do keep the device open (there is no "zpool export" mechanism). Adding zfs support is relatively simple, we just need to run zfs disk probe after mapping is done. Differential Revision: https://reviews.freebsd.org/D19733
171 lines
4.3 KiB
C
171 lines
4.3 KiB
C
/*-
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* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stand.h>
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#include <bootstrap.h>
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#include "libi386/libi386.h"
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#if defined(LOADER_ZFS_SUPPORT)
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#include "libzfs.h"
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#endif
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/*
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* We could use linker sets for some or all of these, but
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* then we would have to control what ended up linked into
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* the bootstrap. So it's easier to conditionalise things
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* here.
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*
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* XXX rename these arrays to be consistent and less namespace-hostile
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*
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* XXX as libi386 and biosboot merge, some of these can become linker sets.
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*/
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#if defined(LOADER_FIREWIRE_SUPPORT)
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extern struct devsw fwohci;
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#endif
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extern struct devsw vdisk_dev;
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/* Exported for libstand */
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struct devsw *devsw[] = {
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&biosfd,
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&bioscd,
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&bioshd,
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#if defined(LOADER_NFS_SUPPORT) || defined(LOADER_TFTP_SUPPORT)
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&pxedisk,
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#endif
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#if defined(LOADER_FIREWIRE_SUPPORT)
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&fwohci,
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#endif
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&vdisk_dev,
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#if defined(LOADER_ZFS_SUPPORT)
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&zfs_dev,
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#endif
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NULL
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};
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struct fs_ops *file_system[] = {
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#if defined(LOADER_ZFS_SUPPORT)
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&zfs_fsops,
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#endif
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#if defined(LOADER_UFS_SUPPORT)
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&ufs_fsops,
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#endif
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#if defined(LOADER_EXT2FS_SUPPORT)
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&ext2fs_fsops,
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#endif
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#if defined(LOADER_MSDOS_SUPPORT)
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&dosfs_fsops,
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#endif
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#if defined(LOADER_CD9660_SUPPORT)
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&cd9660_fsops,
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#endif
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#if defined(LOADER_NANDFS_SUPPORT)
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&nandfs_fsops,
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#endif
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#ifdef LOADER_NFS_SUPPORT
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&nfs_fsops,
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#endif
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#ifdef LOADER_TFTP_SUPPORT
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&tftp_fsops,
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#endif
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#ifdef LOADER_GZIP_SUPPORT
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&gzipfs_fsops,
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#endif
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#ifdef LOADER_BZIP2_SUPPORT
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&bzipfs_fsops,
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#endif
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#ifdef LOADER_SPLIT_SUPPORT
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&splitfs_fsops,
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#endif
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NULL
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};
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/* Exported for i386 only */
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/*
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* Sort formats so that those that can detect based on arguments
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* rather than reading the file go first.
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*/
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extern struct file_format i386_elf;
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extern struct file_format i386_elf_obj;
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extern struct file_format amd64_elf;
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extern struct file_format amd64_elf_obj;
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extern struct file_format multiboot;
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extern struct file_format multiboot_obj;
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struct file_format *file_formats[] = {
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&multiboot,
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&multiboot_obj,
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#ifdef LOADER_PREFER_AMD64
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&amd64_elf,
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&amd64_elf_obj,
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#endif
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&i386_elf,
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&i386_elf_obj,
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#ifndef LOADER_PREFER_AMD64
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&amd64_elf,
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&amd64_elf_obj,
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#endif
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NULL
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};
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/*
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* Consoles
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*
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* We don't prototype these in libi386.h because they require
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* data structures from bootstrap.h as well.
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*/
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extern struct console vidconsole;
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extern struct console comconsole;
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#if defined(LOADER_FIREWIRE_SUPPORT)
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extern struct console dconsole;
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#endif
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extern struct console nullconsole;
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extern struct console spinconsole;
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struct console *consoles[] = {
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&vidconsole,
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&comconsole,
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#if defined(LOADER_FIREWIRE_SUPPORT)
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&dconsole,
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#endif
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&nullconsole,
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&spinconsole,
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NULL
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};
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extern struct pnphandler isapnphandler;
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extern struct pnphandler biospnphandler;
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extern struct pnphandler biospcihandler;
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struct pnphandler *pnphandlers[] = {
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&biospnphandler, /* should go first, as it may set isapnp_readport */
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&isapnphandler,
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&biospcihandler,
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NULL
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};
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