freebsd kernel with SKQ
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Konstantin Belousov bd101a6648 Ensure that resume path on amd64 only accesses page tables for normal
operation after processor is configured to allow all required
features.

In particular, NX must be enabled in EFER, otherwise load of page
table element with nx bit set causes reserved bit page fault.  Since
malloc uses direct mapping for small allocations, in particular for
the suspension pcbs, and DMAP is nx after r316767, this commit tripped
fault on resume path.

Restore complete state of EFER while wakeup code is still executing
with custom page table, before calling resumectx, instead of trying to
guess which features might be needed before resumectx restored EFER on
its own.

Bisected and tested by:	trasz
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2017-05-15 20:52:43 +00:00
bin sh: Fix '-' from quoted arithmetic in case/glob pattern range. 2017-05-14 13:14:19 +00:00
cddl MFV 316894 2017-04-25 17:57:43 +00:00
contrib bsdgrep: add more tests for different binary flags 2017-05-15 20:41:29 +00:00
crypto Refine and update blacklist support in sshd 2017-05-12 15:20:12 +00:00
etc Handle the logfiles in newsyslog and syslogd conditionally, based on 2017-05-13 03:10:50 +00:00
gnu Add a new GDB_LIBEXEC option to install gdb and kgdb to /usr/libexec. 2017-04-25 18:08:56 +00:00
include <stdio.h>: ftello() and fseeko() were in SUSv2, so extend visibility. 2017-04-29 18:48:05 +00:00
kerberos5 kerberos5: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:34:36 +00:00
lib Add information to open(2) man page about the O_VERIFY flag. 2017-05-15 19:32:26 +00:00
libexec Make ld-elf.so.1 directly executable. 2017-05-15 18:48:58 +00:00
release Update release/scripts/atlas-upload.sh to account for API changes 2017-05-11 16:37:29 +00:00
rescue DIRDEPS_BUILD: Update dependencies. 2017-05-09 01:48:23 +00:00
sbin Persistently store NIC's hardware MAC address, and add a way to retrive it 2017-05-10 22:13:47 +00:00
secure Fix invalid .o SRCS from r314527. 2017-05-09 01:48:02 +00:00
share Tell bmake (meta mode) to ignore changes to /usr/local/etc/libmap.d/* 2017-05-11 19:49:22 +00:00
sys Ensure that resume path on amd64 only accesses page tables for normal 2017-05-15 20:52:43 +00:00
targets DIRDEPS_BUILD: Connect new directories. 2017-05-09 01:48:14 +00:00
tests Add a regression test for r318191. 2017-05-12 18:02:57 +00:00
tools makeman: reword description, based on feedback from wblock 2017-05-15 18:02:13 +00:00
usr.bin uniq: allow -c to be used with -d or -u 2017-05-15 20:18:14 +00:00
usr.sbin Change the default uid/gid values for nobody/nogroup to 65534/65533. 2017-05-14 00:38:41 +00:00
.arcconfig
.arclint
COPYRIGHT Bump copyright year. 2016-12-31 12:41:42 +00:00
LOCKS
MAINTAINERS Due to time constraints remove myself as a vmm(4) maintainer. 2017-04-15 22:42:23 +00:00
Makefile Cache compiler metadata and reuse it at installworld time. 2017-04-13 22:07:34 +00:00
Makefile.inc1 Add a -DNO_LIBS to skip building the libraries phase as well. 2017-05-09 23:58:07 +00:00
Makefile.libcompat Support skipping 'make obj' tree-walk. 2017-05-09 20:21:38 +00:00
ObsoleteFiles.inc Revert r317446 and bring back cy(4). 2017-04-27 16:14:32 +00:00
README Correct the URL to instructions for updated system sources. 2017-05-15 15:18:36 +00:00
README.md Remove hard line breaks from README.md 2017-03-01 15:39:58 +00:00
UPDATING Revert r317432 and add a new entry for r316527. 2017-04-26 16:50:54 +00:00

FreeBSD Source:

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. See build(7) and 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. See build(7), config(8), and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information.

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 kernel configuration files reside in the sys/<arch>/conf sub-directory. GENERIC is the default configuration used in release builds. NOTES contains entries and documentation for all possible devices, not just those commonly used.

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.

sys				Kernel sources.

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.

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