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Toomas Soome 4914ee11ae loader: implement map-vdisk and unmap-vdisk commands
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
2019-04-26 17:58:44 +00:00
bin Restore the -n flag parsing, but ignore it. 2019-04-24 05:24:10 +00:00
cddl Drop -g from CFLAGS for zfsd(8). No idea why it was ever there. 2019-04-16 12:25:15 +00:00
contrib MFV r346563: 2019-04-23 03:52:43 +00:00
crypto Add workaround for a QoS-related bug in VMWare Workstation. 2019-03-27 15:17:29 +00:00
etc mtree: Add more runtime package tag 2019-04-25 16:45:24 +00:00
gnu Fix gdb/kgdb build under WITH_PIE 2019-04-01 19:19:51 +00:00
include Introduce funlinkat syscall that always us to check if we are removing 2019-04-06 09:34:26 +00:00
kerberos5 Add WITH_PIE knob to build Position Independent Executables 2019-02-15 22:22:38 +00:00
lib Merge __VGLGetXY() back into VGLGetXY(). They were split to simplify 2019-04-26 16:38:23 +00:00
libexec Make mdmfs verbose if diskless boot is verbose. 2019-04-26 14:44:50 +00:00
release Add support for cross-building cloudware images. 2019-04-03 21:54:47 +00:00
rescue rescue: set NO_SHARED in Makefile 2018-11-19 22:18:18 +00:00
sbin Add GRE-in-UDP encapsulation support as defined in RFC8086. 2019-04-24 09:05:45 +00:00
secure Add workaround for a QoS-related bug in VMWare Workstation. 2019-03-27 15:17:29 +00:00
share iflib: Better control over queue core assignment 2019-04-25 21:24:56 +00:00
stand loader: implement map-vdisk and unmap-vdisk commands 2019-04-26 17:58:44 +00:00
sys [skip ci] fix typo in comment from r59840 2019-04-26 15:00:59 +00:00
targets retire LINKER_FEATURES filter flag 2018-11-12 20:44:22 +00:00
tests Use range instead of xrange 2019-04-24 05:52:24 +00:00
tools Fix tools/boot/ci-qemu-test.sh and make some improvements 2019-04-26 14:44:46 +00:00
usr.bin ar: shuffle symbol offsets during conversion for 32-bit ar archives 2019-04-22 19:55:47 +00:00
usr.sbin Make bhyve SMBIOS table topology aware 2019-04-25 22:53:55 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.cirrus.yml Cirrus-CI: pass OVMF env var to test script for upcoming changes 2019-04-11 13:01:26 +00:00
.gitattributes MK_ZFS -> {MK_ZFS|MK_LOADER_ZFS}, this is so we can diable userland / kernel 2019-01-05 22:45:20 +00:00
.gitignore Ignore _.universe-toolchain file. 2018-07-01 13:50:37 +00:00
COPYRIGHT Happy New Year 2019! 2019-01-01 00:25:25 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Add note that I'm the defacto maintainer of libegacy, our 2019-04-18 15:19:28 +00:00
Makefile import zstd 1.4.0 2019-04-19 00:31:04 +00:00
Makefile.inc1 pkgbase: Use uname as ABI_FILE 2019-03-27 17:55:39 +00:00
Makefile.libcompat Use ...-freebsd13.0 in -target strings. 2018-11-12 16:55:20 +00:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Set tentative merge date, and bump __FreeBSD_version. 2019-03-04 19:23:11 +00:00
README Import wpa_supplicant/hostapd 2.8 2019-04-22 15:42:53 +00:00
README.md import zstd 1.4.0 2019-04-19 00:31:04 +00:00
UPDATING random(4): Restore availability tradeoff prior to r346250 2019-04-18 20:48:54 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.

Source Roadmap:

bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

stand		Boot loader sources.

sys		Kernel sources.

sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
		used in release builds. NOTES contains documentation of
		all possible entries.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.

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https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html