FreeBSD src
Go to file
Neel Natu 88c4b8d145 Use the 'Virtual Interrupt Delivery' feature of Intel VT-x if supported by
hardware. It is possible to turn this feature off and fall back to software
emulation of the APIC by setting the tunable hw.vmm.vmx.use_apic_vid to 0.

We now start handling two new types of VM-exits:

APIC-access: This is a fault-like VM-exit and is triggered when the APIC
register access is not accelerated (e.g. apic timer CCR). In response to
this we do emulate the instruction that triggered the APIC-access exit.

APIC-write: This is a trap-like VM-exit which does not require any instruction
emulation but it does require the hypervisor to emulate the access to the
specified register (e.g. icrlo register).

Introduce 'vlapic_ops' which are function pointers to vector the various
vlapic operations into processor-dependent code. The 'Virtual Interrupt
Delivery' feature installs 'ops' for setting the IRR bits in the virtual
APIC page and to return whether any interrupts are pending for this vcpu.

Tested on an "Intel Xeon E5-2620 v2" courtesy of Allan Jude at ScaleEngine.
2014-01-07 21:04:49 +00:00
bin sh(1): Discourage use of -e. 2014-01-03 22:56:23 +00:00
cddl MFV r260154 + 260182: 2014-01-02 07:34:36 +00:00
contrib gperf: reverse size_type patch from r258115. 2014-01-07 01:40:49 +00:00
crypto MFV r260399: 2014-01-07 19:58:45 +00:00
etc Regen. 2014-01-03 06:02:08 +00:00
games Fix typo in fortune (go -> to) 2013-12-10 19:42:35 +00:00
gnu When building a cross kgdb, link against the appropriate cross libkvm. 2013-12-28 23:31:22 +00:00
include Replace Sun RPC license with a 3-clause BSD license. This license change 2013-12-09 04:26:50 +00:00
kerberos5 Try and fix the dependency/bootstrap issues in kerberos5 2013-12-23 14:23:17 +00:00
lib Split the last gcc-specific flags off into CFLAGS.gcc. This also 2014-01-05 21:03:49 +00:00
libexec Cast Elf_Addr to void * to match the free_aligned() argument type. 2013-12-07 15:49:16 +00:00
release do not use capsicum when building picobsd images 2014-01-06 08:09:19 +00:00
rescue - Trim an unused and bogus Makefile for mount_smbfs. 2013-06-28 21:00:08 +00:00
sbin For "nvmecontrol devlist", show namespace sizes in terms of MB instead of 2014-01-06 23:48:47 +00:00
secure Unbreak the WITHOUT_KERBEROS build and try to reduce the odds of a 2013-09-23 20:35:54 +00:00
share Apply band-aid for 32-bit compat libs failures after r260334: put back 2014-01-06 14:39:10 +00:00
sys Use the 'Virtual Interrupt Delivery' feature of Intel VT-x if supported by 2014-01-07 21:04:49 +00:00
tests Install category Kyuafiles from their category directories. 2013-11-08 14:29:06 +00:00
tools It is 2014 and we have a new version of netmap. 2014-01-06 12:53:15 +00:00
usr.bin find: Fix two more problems with -lname and -ilname: 2014-01-05 23:01:28 +00:00
usr.sbin Split the last gcc-specific flags off into CFLAGS.gcc. This also 2014-01-05 21:03:49 +00:00
COPYRIGHT Bump copyright year. 2013-12-31 12:18:10 +00:00
LOCKS Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS pkg_install has been removed on 20131031. 2013-11-09 16:20:42 +00:00
Makefile Remove the armv6eb architecture as it is unused, and almost certainly 2013-09-22 07:30:17 +00:00
Makefile.inc1 Remove aicasm as a build dependency. It made sense when the ahc and ahd 2014-01-07 19:33:17 +00:00
ObsoleteFiles.inc Bump libcam shared library version forgotten in r259397. 2013-12-15 15:51:05 +00:00
README Add the cddl/ directory. 2010-11-14 11:32:56 +00:00
UPDATING document how to install when src is newer than the world.. This allows 2013-12-20 23:34:10 +00:00

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

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, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel, the kernel-modules and the contents of /etc.  The ``world''
target should only be used in cases where the source tree has not
changed from the currently running version.  See:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
for more information, including setting make(1) variables.

The ``buildkernel'' and ``installkernel'' targets build and install
the kernel and the modules (see below).  Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process, documentation
for which can be found at:
   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
And in the config(8) man page.
Note: If you want to build and install the kernel with the
``buildkernel'' and ``installkernel'' targets, you might need to build
world before.  More information is available in the handbook.

The sample kernel configuration files reside in the sys/<arch>/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file NOTES contains entries and documentation for all possible
devices, not just those commonly used.  It is the successor of the ancient
LINT file, but in contrast to LINT, it is not buildable as a kernel but a
pure reference and documentation file.


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.

games		Amusements.

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.

sys		Kernel sources.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.


For information on synchronizing your source tree with one or more of
the FreeBSD Project's development branches, please see:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html