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path: root/stand/i386/loader/main.c
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* zfsboot: Remove zfsboot(8) program used to boot ZFS from MBR + BIOSJohn Baldwin10 days1-1/+1
| | | | | | | | | | | | | This has not worked since the import of OpenZFS in FreeBSD 13.0. Trying to fix it at this point would probably entail rearchitecting how it works (e.g. using a dedicated freebsd-boot slice to hold zfsboot). However, it's not really worth doing that at this point. PR: 271262 Reported by: Henryk Paluch <hpaluch@seznam.cz> Reviewed by: imp, emaste Relnotes: yes Differential Revision: https://reviews.freebsd.org/D51545
* biosboot: Detect memory disks from PXERichard Russo2025-07-231-0/+3
| | | | | | | | | | | | | | | | | | | Walk through the disk driver entries chained off of INT13. MEMDISK is part of the Syslinux project; it loads disk images into memory, sets an int 13h hook and then does a BIOS boot from the image; this can be used as part of a PXE boot environment to load installer disks, however the disks are not accessible from inside the FreeBSD kernel because it doesn't access disks through BIOS APIs. This patch detects the disk images in the loader, and passes their address and length as a driver hint. When the md driver sees the hint, it maps the image, and presents it to the system. (rebased and reworked from https://reviews.freebsd.org/D27349) Feedback from: kib, bapt, olce Differential Revision: https://reviews.freebsd.org/D45404
* stand/i386: Initialize archsw at compile timeWarner Losh2025-05-261-17/+21
| | | | | | | No need to initialize this at runtime. This trades .bss space + code in .text for just .data and is net smaller by 4 bytes. Sponsored by: Netflix
* libsa: Remove redundant sys/cdefs.hWarner Losh2024-02-221-1/+0
| | | | Sponsored by: Netflix
* loader: Retire CTASSERTWarner Losh2024-02-211-5/+4
| | | | | | | | | The project is moving away from CTASSERT in favor of _Static_assert. Cleanup the few instances in the loader proactively. Sponsored by: Netflix Reviewed by: manu, tsoome Differential Revision: https://reviews.freebsd.org/D44006
* Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-161-2/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* stand: create common set_currdevWarner Losh2023-01-111-4/+1
| | | | | | | | | | | | Pull together the nearly identical copies of set_currdev in i386, userboot and efi. Other boot loaders have variances that might be fine to use the common routine, or not. Since they are harder to test for me, and ofw and uboot do handle these setting differently, leave them be for now. Sponsored by: Netflix Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D38005
* stand: Create common gen_setcurrdev and replace codeWarner Losh2023-01-111-2/+2
| | | | | | | | | | Replace 4 identical copies of *_setcurrdev with gen_setcurrdev to avoid having to create a 5th copy. uboot_setcurrdev is actually different and needs to remain separate (even though it's quite similar). Sponsored by: Netflix Reviewed by: fuz@fuz.su, kevans Differential Revision: https://reviews.freebsd.org/D38003
* stand/zfs: Add a third argument to zfs_probe_dev: part_tooWarner Losh2023-01-081-1/+1
| | | | | | | | | Pass in 'true' if you'd like to search this device's partitions or 'false' if you should just search the device. EFI and (in the future) kboot have discrete partitions that aren't accessed via the full disk device. Weird things happen if you try to search in these cases. Sponsored by: Netflix
* stand: create devinitWarner Losh2022-11-301-8/+1
| | | | | | | | devinit() marches through all the devices, calling the inint routines if any exist. Replace all the identical copies of this code. Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D37349
* stand: Remove i386-only support fire firewireWarner Losh2022-11-181-1/+1
| | | | | | | | | | | | Remove support for booting off of firewire, and for having dcons via firewire in the loader. Kernel support for these things is unchanged. Discussed on arch@ and the current state is not working (and the build was wrong to boot). Sponsored by: Netflix Discussed: https://lists.freebsd.org/archives/freebsd-arch/2022-November/000267.html Reviewed by: kevans, melifaro, emaste Differential Revision: https://reviews.freebsd.org/D37334
* stand: i386_fmtdev can be reduced to devformatWarner Losh2022-08-111-2/+2
| | | | | | | | | devformat produces the same output as i386_fmtdev, so just use it to reduce on the dependencies. Sponsored by: Netflix Reviewed by: tsoome Differential Revision: https://reviews.freebsd.org/D35927
* stand: Replace zfs_fmtdev with generic devformat()Warner Losh2022-08-111-1/+1
| | | | | Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D35973
* stand: Change zfs_fmtdev to take a struct devdesc *Warner Losh2022-08-111-1/+1
| | | | | Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D35974
* stand: Move i386_devdesc to a unionWarner Losh2022-08-111-12/+10
| | | | | | | | | | | Rather than have the magic, hand-crafted fields that have to align with fields in other structures at the end of i386_devdesc, make it into anonymous union and adjust the code accordingly. This is safer and similar to what CAM does. Sponsored by: Netflix Reviewed by: kevans, tsoome (prior version) Differential Revision: https://reviews.freebsd.org/D35965
* loader: implement mount/unmount rootfsToomas Soome2021-09-081-0/+4
| | | | | | | | | We want to keep our root file system open to preserve bcache segment between file accesses, thus reducing physical disk IO. Reviewed by: imp, allanjude, kevans (previous version) Differential Revision: https://reviews.freebsd.org/D30848 MFC after: 1 month
* i386/loader: Call tslog_initColin Percival2021-06-211-0/+6
| | | | | | This allows the i386 loader to start recording timestamps. Reviewed by: kevans
* loader: implement framebuffer consoleToomas Soome2021-01-021-3/+7
| | | | | | | | | | | | | | | | | | | | | | | Draw console on efi. Add vbe framebuffer for BIOS loader (vbe off, vbe on, vbe list, vbe set xxx). autoload font (/boot/fonts) based on resolution and font size. Add command loadfont (set font by file) and variable screen.font (set font by size). Pass loaded font to kernel. Export variables: screen.height screen.width screen.depth Add gfx primitives to draw the screen and put png image on the screen. Rework menu draw to iterate list of consoles to enamble device specific output. Probably something else I forgot... Relnotes: yes Differential Revision: https://reviews.freebsd.org/D27420
* loader: fix non-zfs buildToomas Soome2020-09-231-1/+1
| | | | | | | | | We can not include zfs headers while building without zfs. Reported by: Oscar Holmlund Notes: svn path=/head/; revision=366087
* loader: zfs should support bootonce an nextbootToomas Soome2020-09-211-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bootonce feature is temporary, one time boot, activated by "bectl activate -t BE", "bectl activate -T BE" will reset the bootonce flag. By default, the bootonce setting is reset on attempt to boot and the next boot will use previously active BE. By setting zfs_bootonce_activate="YES" in rc.conf, the bootonce BE will be set permanently active. bootonce dataset name is recorded in boot pool labels, bootenv area. in case of nextboot, the nextboot_enable boolean variable is recorded in freebsd:nvstore nvlist, also stored in boot pool label bootenv area. On boot, the loader will process /boot/nextboot.conf if nextboot_enable is "YES", and will set nextboot_enable to "NO", preventing /boot/nextboot.conf processing on next boot. bootonce and nextboot features are usable in both UEFI and BIOS boot. To use bootonce/nextboot features, the boot loader needs to be updated on disk; if loader.efi is stored on ESP, then ESP needs to be updated and for BIOS boot, stage2 (zfsboot or gptzfsboot) needs to be updated (gpart or other tools). At this time, only lua loader is updated. Sponsored by: Netflix, Klara Inc. Differential Revision: https://reviews.freebsd.org/D25512 Notes: svn path=/head/; revision=365938
* zfs: add an option to the bootloader to rewind the ZFS checkpointMariusz Zaborski2020-08-181-1/+1
| | | | | | | | | | | | | | | | | | The checkpoints are another way of keeping the state of ZFS. During the rewind, the pool has to be exported. This makes checkpoints unusable when using ZFS as root. Add the option to rewind the ZFS checkpoint at the boot time. If checkpoint exists, a new option for rewinding a checkpoint will appear in the bootloader menu. We fully support boot environments. If the rewind option is selected, the boot loader will show a list of boot environments that existed before the checkpoint. Reviewed by: tsoome, allanjude, kevans (ok with high-level overview) Differential Revision: https://reviews.freebsd.org/D24920 Notes: svn path=/head/; revision=364355
* loader: cstyle cleanupToomas Soome2020-07-191-229/+250
| | | | | | | | | No functional changes intended. Sponsored by: Netflix, Klara Inc. Notes: svn path=/head/; revision=363318
* Move smbios.c to libsa.Warner Losh2020-02-201-1/+1
| | | | | | | | | | | | | smbios used to be an i386 only kinda weird quirk to the x86 architecture. But UEFI picked it up, dusted it off and now it's many other locations. Make it base technology by moving it to libsa and fixing up the compliation. The code has issues with unaligned access still, but that will be addressed in a followup commit. Differential Revision: https://reviews.freebsd.org/D23660 Notes: svn path=/head/; revision=358136
* Create ptov() function.Warner Losh2020-02-201-0/+6
| | | | | | | | | | | | | Create a ptov() function. It's basically the same as the btx PTOV macro, but works everywhere. smbios needs this to translate addresses, but the translation differs between BIOS booting and EFI booting. Make it a function so one smbios.o can be used everywhere. Provide definitions for it in the two loaders affected. Differential Revision: https://reviews.freebsd.org/D23660 Notes: svn path=/head/; revision=358135
* Add support for hypervisor check on x86Simon J. Gerraty2019-10-241-0/+1
| | | | | | | | | | | | | | Add ficl words for isvirtualized and move ficl inb and outb words to ficl/x86/sysdep.c so can be shared by i386 and amd64 Reviewed by: imp bdrewery MFC after: 1 week Sponsored by: Juniper Networks Differential Revision: https://reviews.freebsd.org/D22069 Notes: svn path=/head/; revision=354043
* loader: vidconsole should set LINES and COLUMNSToomas Soome2019-09-101-1/+0
| | | | | | | Set LINES and COLUMNS based on terminal dimensions. Notes: svn path=/head/; revision=352195
* Don't reference zfs-specific variables if LOADER_ZFS_SUPPORT is undefinedIan Lepore2018-12-061-1/+4
| | | | | | | | | | because the variables will be undefined too. Reported by: sjg@ Pointy hat: ian@ Notes: svn path=/head/; revision=341651
* Fix args cross-threading between gptboot(8) and loader(8) with zfs support.Ian Lepore2018-12-041-16/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | When loader(8) is built with zfs support enabled, it assumes that any extarg data present is a zfs_boot_args struct, but if the first-stage loader was gptboot(8) the extarg data is actually a geli_boot_args struct. Luckily, zfsboot(8) and gptzfsboot(8) have always passed KARGS_FLAGS_ZFS along with KARGS_FLAGS_EXTARG, so we can use KARGS_FLAGS_ZFS to decide whether the extarg data is a zfs_boot_args struct. To avoid similar problems in the future, gptboot(8) now passes a new KARGS_FLAGS_GELI to indicate that extarg data is geli_boot_args. In loader(8), if the neither KARGS_FLAGS_ZFS nor KARGS_FLAGS_GELI is set but extarg data is present (which will be the case for gptboot compiled before this change), we now check for the known size of the geli_boot_args struct passed by the older versions of gptboot as a way of confirming what type of extarg data is present. In a semi-related tidying up, since loader's main() has already decided what type of extarg data is present and set the global 'zargs' var accordingly, don't repeat the check in extract_currdev, just check whether zargs is NULL or not. X-MFC after: a few days, along with prior related changes. Notes: svn path=/head/; revision=341473
* Eliminate duplicated code and struct member definitions in the handoffIan Lepore2018-12-031-17/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | of args data between gptboot/zfsboot and loader(8). Despite what seems like a lot of changes here, there are no actual changes in behavior, or in the data layout in the structures involved. This is just eliminating identical code pasted into multiple locations. In detail, the changes are... - Move struct zfs_boot_args definition from libsa/zfs/libzfs.h to i386/common/bootargs.h because it is specific to x86 booting and the handoff between zfsboot and loader, and has no relation to the zfs library code in general. - The geli_boot_args and zfs_boot_args structs both contain an identical set of member variables containing geli information. Extract this out to a new geli_boot_data struct, and embed it in the arg-passing structs. - Provide new routines geli_import_boot_data() and geli_export_boot_data() that can be shared between gptboot, zfsboot, and loader instead of pasting identical code into several different .c files. - Remove some checks for a NULL pointer that can never be true because the pointer being tested was set using pointer math (kargs + 1) and that can never result in NULL in this code. Notes: svn path=/head/; revision=341420
* loader: create separate lists for fd, cd and hd, merge bioscd with biosdiskToomas Soome2018-11-301-10/+8
| | | | | | | | | | | | Create unified block IO implementation in BIOS version, like it is done in UEFI side. Implement fd, disk and cd device lists, this will split floppy devices from disks and will allow us to have consistent, predictable device naming (modulo BIOS issues). Differential Revision: https://reviews.freebsd.org/D17888 Notes: svn path=/head/; revision=341328
* loader: do not probe floppy devices for zfsToomas Soome2018-11-021-0/+2
| | | | | | | The subject is telling it all. Notes: svn path=/head/; revision=340047
* Extend loader(8) geli support to all architectures and all disk-like devices.Ian Lepore2018-07-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | This moves the bulk of the geli support from lib386/biosdisk.c into a new geli/gelidev.c which implements a devsw-type device whose dv_strategy() function handles geli decryption. Support for all arches comes from moving the taste-and-attach code to the devopen() function in libsa. After opening any DEVT_DISK device, devopen() calls the new function geli_probe_and_attach(), which will "attach" the geli code to the open_file struct by creating a geli_devdesc instance to replace the disk_devdesc instance in the open_file. That routes all IO for the device through the geli code. A new public geli_add_key() function is added, to allow arch/vendor-specific code to add keys obtained from custom hardware or other sources. With these changes, geli support will be compiled into all variations of loader(8) on all arches because the default is WITH_LOADER_GELI. Relnotes: yes Sponsored by: Microchip Technology Inc Differential Revision: https://reviews.freebsd.org/D15743 Notes: svn path=/head/; revision=336252
* Stop using ../zfs/libzfs.h but instead use libzfs.h.Warner Losh2018-07-081-1/+1
| | | | | | | | | | | While ../zfs/libzfs.h mostly works, there are a few situations where it does not. Eliminate the problem by using plain libzfs.h, like we do for ufs support. This fixes the weird cases, and is easier to understand. It also follows the general style convetion of avoiding ../ in #includes. Notes: svn path=/head/; revision=336085
* bootprog_info is generated in vers.c. Move it's definition toWarner Losh2018-06-141-3/+0
| | | | | | | | | bootstrap.h and remove all the redundant copies. Sponsored by: Netflix Notes: svn path=/head/; revision=335117
* Prefer uintXX_t to u_intXX_tWarner Losh2018-03-131-2/+2
| | | | | | | | | A foolish consistency is the hobgoblin of little minds, adored by little statesmen and philosophers and divines. With consistency a great soul has simply nothing to do. -- Ralph Waldo Emerson Notes: svn path=/head/; revision=330864
* Remove d_type from devdesc. It's not needed as we can fetch it fromWarner Losh2018-03-121-3/+2
| | | | | | | d_dev->dv_type when we need it. Notes: svn path=/head/; revision=330810
* Use the actual struct devdesc at the start of all *_devdesc structsWarner Losh2018-03-121-11/+11
| | | | | | | | | | | | | | | | | | | The current system is fragile and requires very careful layout of all *_devdesc structures. It also makes it hard to change the base devdesc. Take a page from CAM and put the 'header' in all the derived classes and adjust the code to match. For OFW, move the iHandle h_handle out of a slot conflicting with d_opendata. Due to quirks in the alignment rules, this worked. However changing the code to use d_opendata storage now that it's a pointer is hard, so just have a separate field for it. All other cleanups were to make the *_devdesc structures match where they'd taken some liberties that were none-the-less compatible enough to work. Notes: svn path=/head/; revision=330809
* Consolidate three copies of ZFS commands into a central location.Warner Losh2018-02-211-67/+0
| | | | | | | | | | There's no reason to have multiple copies of lszfs and reloadbe. Consolidate them into one location. Also ldi_get_size is the same everywhere (except sparc64). Make it the same everywhere as the common definition is more general and will work on spar64. Notes: svn path=/head/; revision=329725
* Interact is always called with NULL. Simplify code a little byWarner Losh2017-12-191-1/+1
| | | | | | | | | | | | removing this argument, and expanding when rc is NULL. This effectively completes the back out of custom scripts for tftp booted loaders from r269153 that was started in r292344 with the new path tricks that obsoleted it. Submitted by: Netflix Notes: svn path=/head/; revision=326961
* Revert r326792, r326784, r326772, r326712Warner Losh2017-12-121-1/+1
| | | | | | | | | | Something subtle is creating problems for disk access on ubldr. Back it out unti that can be sorted out. Sponsored by: Netflix Notes: svn path=/head/; revision=326812
* Fix regression with lua importWarner Losh2017-12-111-1/+1
| | | | | | | | | | | | | | Don't print when we can't find a file. Copy it instead to the error buffer. Higher level routines determine if it's appropriate to print the error message. Also, remove dead code (labeled bogusly lost functionality) since we never used that functionality. Remove unused arg from interact() too. Sponsored by: Netflix Notes: svn path=/head/; revision=326772
* Move sys/boot to stand. Fix all references to new locationWarner Losh2017-11-141-0/+477
Sponsored by: Netflix Notes: svn path=/head/; revision=325834
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