app-emulation/xen-tools: security bump

fix XSA-216,217,218,219,220,221,222,223,224,225

Gentoo-Bug: 624112,624114,624116,624118,624120,
	624122,624124,624126,624130

Package-Manager: Portage-2.3.6, Repoman-2.3.2

4 files changed, 922 insertions, 1 deletions

diff --git a/app-emulation/xen-tools/Manifest b/app-emulation/xen-tools/Manifest
index 32c5829b6377..470e3e74c8bc 100644
--- a/app-emulation/xen-tools/Manifest
+++ b/app-emulation/xen-tools/Manifest
@@ -3,7 +3,10 @@ DIST seabios-1.10.0.tar.gz 588213 SHA256 8976fc4c1ebcda66ac96689762247dfc99115a5
 DIST seabios-1.8.2.tar.gz 538497 SHA256 f59479307fdae840de398b75aacb2333c8eba24a5964d68c77e32ca6c987ee61 SHA512 798d222d5f5725a805cde9e6000b5ce714d0551fd4a3c2642cc6e77b2bdab1a9e239939a358a23bbe0e00112f5ad70696c87d20b90655463c835541fc04e1a00 WHIRLPOOL 9cda0ad502a59dd718c543b759ac3fcf5acb4adee70c3da9bfea95ab188415acf6425827de77f45421ec3be8fd9e0c37fb486e62828217ba3e83f88d942a3f4a
 DIST xen-4.7.2-upstream-patches-0.tar.xz 45944 SHA256 e7783bc9adc939167eaef91e96fda506d2d52815f709b31952229891357e6b67 SHA512 6d4e23fb5a63fd191f893e31194b6397a394956846f356ae0119c656a92e7e22296e728286a98109b64a5736241b2317969f54915e7b487b4d7a64aae534614c WHIRLPOOL e185ce40085559d00a302eae8814b4c013817a5e4c0a2a9c56a6b4983b38e7103e44d0407fa78ea79fdbe8eefde346b994812851d8b4bad0bf08cb5721507c37
 DIST xen-4.7.2.tar.gz 20714281 SHA256 61494a56d9251e2108080f95b0dc8e3d175f1ba4da34603fc07b91cfebf358d5 SHA512 8f447e7feffec81fea5b5a4098968b8b8cebc6989e7b6a845413317644d5d328d6f12181d09266366200878ab6a29ab34c7235c1af7b55463a3fdaea40ee1500 WHIRLPOOL 27f3fd88846724e03bf9bb53133046cb79139950c9162dd9c9a85798e169259f73dc2fe4212e750ce9a8fd1d0abd99f1f76108faceb7bf1934ce0495377ee756
+DIST xen-4.7.3.tar.gz 20722625 SHA256 5b5385b476e59e4cf31ecc6dd605df38814b83432b8e8d917f18c8edfdfb708f SHA512 df596bef7f0f0e7f35246fb025913721dae5aa91da27f1b47a49256e9faa8f7dcb80e8c4679345c19614093c02059b6ced54fc51e6900a372b0e76b4ad827126 WHIRLPOOL 9e88db149e216651711cd56830fba33d587de60d57d53fd3ab3db231319f74e4e88222bf1b2bb9b20fea68739bccd4b26304c73a0ae25aad6dbbac64681e3a62
+DIST xen-4.8.1-upstream-patches-0.tar.xz 57132 SHA256 6a6d466e74b28e50cc8ffcf56f6e3853dff73a5d936374404a2aab9dadb54566 SHA512 bcf43f7f9c15016576f225146a34e26122a6e35d953ca8df05d6d3b6b2465bd8e237e824d3d84dfd892f440b40d6e6b3bb7c16c3c79b8e04534b2bed60877f53 WHIRLPOOL 4470d244bed58f9b71a031da19cfe38a79badf426300637211c3e8dfdab02f2b87ed21d9a5340af267685aafd627451f8750b85d9afc73ed2a550c52b43c31ab
 DIST xen-4.8.1.tar.gz 22516631 SHA256 1d69153b94561429293015f66463ee17c26404d1c014e646ecbcca6078581395 SHA512 9f535b4bb57d285dfb92c974d55513505cf485b2d7218fe8f6ed62768e2cee7f225b08adf6706590b2c0a04feca16e10915297c33b98e1b110f8ea7035f46c15 WHIRLPOOL ea367d4d08eaa464417f6c5e7143a52e085a8d0e515c99cbb49ac3ccd5c189aa79947d233754177698a076c28abf7a32c83ae29019ca70c6300839b09ca67bad
 DIST xen-gentoo-patches-9.tar.xz 27456 SHA256 67c410d12ef4628a8c0a931e5868b425f2eb4b2f0e307304a75384cbe509734b SHA512 9a797be9dd2392c34b3f6561c2274e116b4f5b114f4520dbbd0b51818c774479ceabb45aa916f93c1a2bc49787f4ca6e6c83bc743baa6bdeef91d77276b20f36 WHIRLPOOL c41cde532726bb55acd05d558b35d575b229d2ee64eba7438f7b196df313f0e44154148c1e47bf6e8c810667b3b237bcfa410371b4bb6f097b981f6b2637ead3
 DIST xen-ovmf-patches-2.tar.xz 4344 SHA256 495d61d718440057f8b0b54fb57061450dd764c6e87fe5f8bda1785bcddba770 SHA512 0bdc83029a01b613f5c1ca029bd45aebe211c332f09db91a0cc7d6b6f85a81dbbfdc20c62f0d20e973ee41b155a6551a4fad518cb792e1d508bf070e23d6a1d3 WHIRLPOOL 8346d68fa5d2a8e8a5c007b55e2b85cf48df045cc8c4818f09c756d28a52dd856671f37b4a53478e9b96ca9d2eca0c67fd15f009a94d1d2dfed8e83e596d9633
 DIST xen-security-patches-25.tar.xz 9208 SHA256 ceaa520d4d98ab7b6ce5b58c380499372cb513dda0c8236106cdf878385d4458 SHA512 18539c1f42bc95a06f7b06855614fafb4ed7c07a145d9ab90e02954ba405d21fc4c379908e3233ddfb85ccaa04515b261ac4bbf3987ce00e4479158f03edd917 WHIRLPOOL 4cff34c29a5c38e6a5bd0d4f4fe89d8daf944740934b05cd61f4b8a345ddb4d8a8b2de6db27a723154169e3f28d5b34a43eddd08c909cfa3d6d5aee26fcae693
+DIST xen-security-patches-27.tar.xz 2604 SHA256 a8d01bc309894cb1bbde7a264003b873b77d1b4a1cb5c917b25a51e1b068f85b SHA512 ed9ef5ca3a39635a5ebbdc88663ea32f48c12e8ac1f193b8a66486bb62da692add38c5a89051753c992294528b4b4e92d121997317032a864f46776cb91d1897 WHIRLPOOL 07e2321959664083000a6cc90f30fa2365e206e8c1cc22e74afb085760e2c6378ba51f4ebcbf2b433c0d7a8ad9d98d0f43adb423b1bffc6a00eade362e1c59f5
diff --git a/app-emulation/xen-tools/files/gentoo-patches.conf b/app-emulation/xen-tools/files/gentoo-patches.conf
index 32a28f3d3dee..6fe9bf07e8b6 100644
--- a/app-emulation/xen-tools/files/gentoo-patches.conf
+++ b/app-emulation/xen-tools/files/gentoo-patches.conf
@@ -94,15 +94,25 @@ _gx037=" xen-tools-4.6-increase-stack-size.patch"
 #https://xenbits.xen.org/gitweb/?p=people/andrewcoop/xen.git;a=shortlog;h=refs/heads/tools-fix-zero-length-records
 _gx040=" 0001-docs-Clarify-the-expected-behaviour-of-zero-length-r.patch
 	0003-tools-libxc-Avoid-generating-inappropriate-zero-leng.patch
-	0002-tools-libxc-Tolerate-zero-length-records-in-migratio.patch
 	0004-tools-python-Adjust-migration-v2-library-to-warn-abo.patch"
 
+_gx041=" 0002-tools-libxc-Tolerate-zero-length-records-in-migratio.patch"
+
 # xen-tools-4.7.2 patches set
 _gpv_xen_tools_472_0="
 ${_gx008} ${_gx021}
 ${_gx022} ${_gx017} ${_gx031}
 ${_gx027} ${_gx032}
 ${_gx028} ${_gx029} ${_gx036}
+${_gx037} ${_gx040} ${_gx041}
+"
+
+# xen-tools-4.7.3 patches set
+_gpv_xen_tools_473_0="
+${_gx008} ${_gx021}
+${_gx022} ${_gx017} ${_gx031}
+${_gx027} ${_gx032}
+${_gx028} ${_gx029} ${_gx036}
 ${_gx037} ${_gx040}
 "
 
diff --git a/app-emulation/xen-tools/xen-tools-4.7.3.ebuild b/app-emulation/xen-tools/xen-tools-4.7.3.ebuild
new file mode 100644
index 000000000000..93100c8956a0
--- /dev/null
+++ b/app-emulation/xen-tools/xen-tools-4.7.3.ebuild
@@ -0,0 +1,459 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=5
+
+PYTHON_COMPAT=( python2_7 )
+PYTHON_REQ_USE='ncurses,xml,threads'
+
+inherit eutils bash-completion-r1 flag-o-matic multilib python-single-r1 toolchain-funcs versionator
+
+MY_PV=${PV/_/-}
+MAJOR_V="$(get_version_component_range 1-2)"
+
+if [[ $PV == *9999 ]]; then
+	inherit git-r3
+	KEYWORDS="~amd64 ~x86"
+	REPO="xen.git"
+	EGIT_REPO_URI="git://xenbits.xen.org/${REPO}"
+	S="${WORKDIR}/${REPO}"
+else
+	KEYWORDS="~amd64 ~arm ~arm64 ~x86"
+	UPSTREAM_VER=
+	SECURITY_VER=
+	# xen-tools's gentoo patches tarball
+	GENTOO_VER=9
+	# xen-tools's gentoo patches version which apply to this specific ebuild
+	GENTOO_GPV=0
+	# xen-tools ovmf's patches
+	OVMF_VER=2
+
+	SEABIOS_VER=1.8.2
+	# OVMF upstream 52a99493cce88a9d4ec8a02d7f1bd1a1001ce60d
+	OVMF_PV=20151110
+
+	[[ -n ${UPSTREAM_VER} ]] && \
+		UPSTREAM_PATCHSET_URI="https://dev.gentoo.org/~dlan/distfiles/${P/-tools/}-upstream-patches-${UPSTREAM_VER}.tar.xz"
+	[[ -n ${SECURITY_VER} ]] && \
+		SECURITY_PATCHSET_URI="https://dev.gentoo.org/~dlan/distfiles/${PN/-tools}-security-patches-${SECURITY_VER}.tar.xz"
+	[[ -n ${GENTOO_VER} ]] && \
+		GENTOO_PATCHSET_URI="https://dev.gentoo.org/~dlan/distfiles/${PN/-tools}-gentoo-patches-${GENTOO_VER}.tar.xz"
+	[[ -n ${OVMF_VER} ]] && \
+		OVMF_PATCHSET_URI="https://dev.gentoo.org/~dlan/distfiles/${PN/-tools}-ovmf-patches-${OVMF_VER}.tar.xz"
+
+	SRC_URI="https://downloads.xenproject.org/release/xen/${MY_PV}/xen-${MY_PV}.tar.gz
+	http://code.coreboot.org/p/seabios/downloads/get/seabios-${SEABIOS_VER}.tar.gz
+	https://dev.gentoo.org/~dlan/distfiles/seabios-${SEABIOS_VER}.tar.gz
+	ovmf? ( https://dev.gentoo.org/~dlan/distfiles/ovmf-${OVMF_PV}.tar.bz2
+		${OVMF_PATCHSET_URI} )
+	${UPSTREAM_PATCHSET_URI}
+	${SECURITY_PATCHSET_URI}
+	${GENTOO_PATCHSET_URI}"
+
+	S="${WORKDIR}/xen-${MY_PV}"
+fi
+
+DESCRIPTION="Xen tools including QEMU and xl"
+HOMEPAGE="http://xen.org/"
+DOCS=( README docs/README.xen-bugtool )
+
+LICENSE="GPL-2"
+SLOT="0/${MAJOR_V}"
+# Inclusion of IUSE ocaml on stabalizing requires maintainer of ocaml to (get off his hands and) make
+# >=dev-lang/ocaml-4 stable
+# Masked in profiles/eapi-5-files instead
+IUSE="api custom-cflags debug doc flask hvm +qemu ocaml ovmf +qemu-traditional +pam python pygrub screen sdl static-libs system-qemu system-seabios"
+
+REQUIRED_USE="
+	${PYTHON_REQUIRED_USE}
+	pygrub? ( python )
+	ovmf? ( hvm )
+	^^ ( qemu system-qemu )"
+
+COMMON_DEPEND="
+	dev-libs/lzo:2
+	dev-libs/glib:2
+	dev-libs/yajl
+	dev-libs/libaio
+	dev-libs/libgcrypt:0
+	sys-libs/zlib
+	${PYTHON_DEPS}
+"
+
+DEPEND="${COMMON_DEPEND}
+	dev-python/lxml[${PYTHON_USEDEP}]
+	x86? ( sys-devel/dev86
+		sys-power/iasl )
+	pam? ( dev-python/pypam[${PYTHON_USEDEP}] )
+	api? ( dev-libs/libxml2
+		net-misc/curl )
+	ovmf? (
+		!arm? ( !arm64? ( dev-lang/nasm ) )
+		$(python_gen_impl_dep sqlite)
+		)
+	!amd64? ( >=sys-apps/dtc-1.4.0 )
+	amd64? ( sys-devel/bin86
+		system-seabios? ( sys-firmware/seabios )
+		sys-firmware/ipxe
+		sys-devel/dev86
+		sys-power/iasl )
+	dev-lang/perl
+	app-misc/pax-utils
+	doc? (
+		app-doc/doxygen
+		dev-python/markdown[${PYTHON_USEDEP}]
+		dev-tex/latex2html[png,gif]
+		media-gfx/graphviz
+		dev-tex/xcolor
+		media-gfx/transfig
+		dev-texlive/texlive-latexextra
+		virtual/latex-base
+		dev-tex/latexmk
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-pictures
+		dev-texlive/texlive-latexrecommended
+	)
+	hvm? ( x11-proto/xproto
+		!net-libs/libiscsi )
+	qemu? (
+		x11-libs/pixman
+		sdl? ( media-libs/libsdl[X] )
+	)
+	system-qemu? ( app-emulation/qemu[xen] )
+	ocaml? ( dev-ml/findlib
+		>=dev-lang/ocaml-4 )"
+
+RDEPEND="${COMMON_DEPEND}
+	sys-apps/iproute2[-minimal]
+	net-misc/bridge-utils
+	screen? (
+		app-misc/screen
+		app-admin/logrotate
+	)"
+
+# hvmloader is used to bootstrap a fully virtualized kernel
+# Approved by QA team in bug #144032
+QA_WX_LOAD="usr/lib/xen/boot/hvmloader
+	usr/share/qemu-xen/qemu/s390-ccw.img"
+
+RESTRICT="test"
+
+pkg_setup() {
+	python_setup
+	export "CONFIG_LOMOUNT=y"
+
+	#bug 522642, disable compile tools/tests
+	export "CONFIG_TESTS=n"
+
+	if has_version dev-libs/libgcrypt:0; then
+		export "CONFIG_GCRYPT=y"
+	fi
+
+	if [[ -z ${XEN_TARGET_ARCH} ]] ; then
+		if use x86 && use amd64; then
+			die "Confusion! Both x86 and amd64 are set in your use flags!"
+		elif use x86; then
+			export XEN_TARGET_ARCH="x86_32"
+		elif use amd64 ; then
+			export XEN_TARGET_ARCH="x86_64"
+		elif use arm; then
+			export XEN_TARGET_ARCH="arm32"
+		elif use arm64; then
+			export XEN_TARGET_ARCH="arm64"
+		else
+			die "Unsupported architecture!"
+		fi
+	fi
+}
+
+src_prepare() {
+	# Upstream's patchset
+	if [[ -n ${UPSTREAM_VER} ]]; then
+		einfo "Try to apply Xen Upstream patch set"
+		EPATCH_SUFFIX="patch" \
+		EPATCH_FORCE="yes" \
+		EPATCH_OPTS="-p1" \
+			epatch "${WORKDIR}"/patches-upstream
+	fi
+
+	# Security patchset
+	if [[ -n ${SECURITY_VER} ]]; then
+	einfo "Try to apply Xen Security patch set"
+		# apply main xen patches
+		# Two parallel systems, both work side by side
+		# Over time they may concdense into one. This will suffice for now
+		EPATCH_SUFFIX="patch"
+		EPATCH_FORCE="yes"
+
+		source "${WORKDIR}"/patches-security/${PV}.conf || die
+
+		for i in ${XEN_SECURITY_MAIN}; do
+			epatch "${WORKDIR}"/patches-security/xen/$i
+		done
+
+		# apply qemu-xen/upstream patches
+		pushd "${S}"/tools/qemu-xen/ > /dev/null
+		for i in ${XEN_SECURITY_QEMUU}; do
+			epatch "${WORKDIR}"/patches-security/qemuu/$i
+		done
+		popd > /dev/null
+
+		# apply qemu-traditional patches
+		pushd "${S}"/tools/qemu-xen-traditional/ > /dev/null
+		for i in ${XEN_SECURITY_QEMUT}; do
+			epatch "${WORKDIR}"/patches-security/qemut/$i
+		done
+		popd > /dev/null
+	fi
+
+	# move before Gentoo patch, one patch should apply to seabios, to fix gcc-4.5.x build err
+	mv ../seabios-${SEABIOS_VER} tools/firmware/seabios-dir-remote || die
+	pushd tools/firmware/ > /dev/null
+	ln -s seabios-dir-remote seabios-dir || die
+	popd > /dev/null
+
+	# Gentoo's patchset
+	if [[ -n ${GENTOO_VER} && -n ${GENTOO_GPV} ]]; then
+		einfo "Try to apply Gentoo specific patch set"
+		source "${FILESDIR}"/gentoo-patches.conf || die
+		_gpv=_gpv_${PN/-/_}_${PV//./}_${GENTOO_GPV}
+		for i in ${!_gpv}; do
+			EPATCH_SUFFIX="patch" \
+			EPATCH_FORCE="yes" \
+				epatch "${WORKDIR}"/patches-gentoo/$i
+		done
+	fi
+
+	# Ovmf's patchset
+	if use ovmf; then
+		if [[ -n ${OVMF_VER} ]];then
+			einfo "Try to apply Ovmf patch set"
+			pushd "${WORKDIR}"/ovmf-*/ > /dev/null
+			EPATCH_SUFFIX="patch" \
+			EPATCH_FORCE="yes" \
+			EPATCH_OPTS="-p1" \
+				epatch "${WORKDIR}"/patches-ovmf
+			popd > /dev/null
+		fi
+		mv ../ovmf-${OVMF_PV} tools/firmware/ovmf-dir-remote || die
+	fi
+
+	mv tools/qemu-xen/qemu-bridge-helper.c tools/qemu-xen/xen-bridge-helper.c || die
+
+	# Fix texi2html build error with new texi2html, qemu.doc.html
+	sed -i -e "/texi2html -monolithic/s/-number//" tools/qemu-xen-traditional/Makefile || die
+
+	use api   || sed -e "/SUBDIRS-\$(LIBXENAPI_BINDINGS) += libxen/d" -i tools/Makefile || die
+	sed -e 's:$(MAKE) PYTHON=$(PYTHON) subdirs-$@:LC_ALL=C "$(MAKE)" PYTHON=$(PYTHON) subdirs-$@:' \
+		 -i tools/firmware/Makefile || die
+
+	# Drop .config, fixes to gcc-4.6
+	sed -e '/-include $(XEN_ROOT)\/.config/d' -i Config.mk || die "Couldn't	drop"
+
+	# if the user *really* wants to use their own custom-cflags, let them
+	if use custom-cflags; then
+		einfo "User wants their own CFLAGS - removing defaults"
+
+		# try and remove all the default cflags
+		find "${S}" \( -name Makefile -o -name Rules.mk -o -name Config.mk \) \
+			-exec sed \
+				-e 's/CFLAGS\(.*\)=\(.*\)-O3\(.*\)/CFLAGS\1=\2\3/' \
+				-e 's/CFLAGS\(.*\)=\(.*\)-march=i686\(.*\)/CFLAGS\1=\2\3/' \
+				-e 's/CFLAGS\(.*\)=\(.*\)-fomit-frame-pointer\(.*\)/CFLAGS\1=\2\3/' \
+				-e 's/CFLAGS\(.*\)=\(.*\)-g3*\s\(.*\)/CFLAGS\1=\2 \3/' \
+				-e 's/CFLAGS\(.*\)=\(.*\)-O2\(.*\)/CFLAGS\1=\2\3/' \
+				-i {} + || die "failed to re-set custom-cflags"
+	else
+		unset CFLAGS
+		unset LDFLAGS
+		unset ASFLAGS
+		unset CPPFLAGS
+	fi
+
+	if ! use pygrub; then
+		sed -e '/^SUBDIRS-y += pygrub/d' -i tools/Makefile || die
+	fi
+
+	if ! use python; then
+		sed -e '/^SUBDIRS-y += python$/d' -i tools/Makefile || die
+	fi
+
+	if ! use hvm; then
+		sed -e '/SUBDIRS-$(CONFIG_X86) += firmware/d' -i tools/Makefile || die
+	# Bug 351648
+	elif ! use x86 && ! has x86 $(get_all_abis); then
+		mkdir -p "${WORKDIR}"/extra-headers/gnu || die
+		touch "${WORKDIR}"/extra-headers/gnu/stubs-32.h || die
+		export CPATH="${WORKDIR}"/extra-headers
+	fi
+
+	if use qemu; then
+		if use sdl; then
+			sed -i -e "s:\$\$source/configure:\0 --enable-sdl:" \
+				tools/Makefile || die
+		else
+			sed -i -e "s:\${QEMU_ROOT\:\-\.}/configure:\0 --disable-sdl:" \
+				tools/qemu-xen-traditional/xen-setup || die
+			sed -i -e "s:\$\$source/configure:\0 --disable-sdl:" \
+				tools/Makefile || die
+		fi
+	else
+		# Don't bother with qemu, only needed for fully virtualised guests
+		sed -e "s:install-tools\: tools/qemu-xen-traditional-dir:install-tools\: :g" -i Makefile || die
+	fi
+
+	# Reset bash completion dir; Bug 472438
+	sed -e "s:^BASH_COMPLETION_DIR ?= \$(CONFIG_DIR)/bash_completion.d:BASH_COMPLETION_DIR ?= $(get_bashcompdir):" \
+		-i Config.mk || die
+	sed -i -e "/bash-completion/s/xl\.sh/xl/g" tools/libxl/Makefile || die
+
+	# xencommons, Bug #492332, sed lighter weight than patching
+	sed -e 's:\$QEMU_XEN -xen-domid:test -e "\$QEMU_XEN" \&\& &:' \
+		-i tools/hotplug/Linux/init.d/xencommons.in || die
+
+	# respect multilib, usr/lib/libcacard.so.0.0.0
+	sed -e "/^libdir=/s/\/lib/\/$(get_libdir)/" \
+		-i tools/qemu-xen/configure || die
+
+	#bug 518136, don't build 32bit exactuable for nomultilib profile
+	if [[ "${ARCH}" == 'amd64' ]] && ! has_multilib_profile; then
+		sed -i -e "/x86_emulator/d" tools/tests/Makefile || die
+	fi
+
+	# use /var instead of /var/lib, consistat with previous ebuild
+	sed -i -e   "/XEN_LOCK_DIR=/s/\$localstatedir/\/var/g" \
+		m4/paths.m4 configure tools/configure || die
+	# use /run instead of /var/run
+	sed -i -e   "/XEN_RUN_DIR=/s/\$localstatedir//g" \
+		m4/paths.m4 configure tools/configure || die
+
+	# uncomment lines in xl.conf
+	sed -e 's:^#autoballoon=:autoballoon=:' \
+		-e 's:^#lockfile=:lockfile=:' \
+		-e 's:^#vif.default.script=:vif.default.script=:' \
+		-i tools/examples/xl.conf  || die
+
+	# Bug #575868 converted to a sed statement, typo of one char
+	sed -e "s:granter’s:granter's:" -i xen/include/public/grant_table.h || die
+
+	epatch_user
+}
+
+src_configure() {
+	local myconf="--prefix=${PREFIX}/usr \
+		--libdir=${PREFIX}/usr/$(get_libdir) \
+		--libexecdir=${PREFIX}/usr/libexec \
+		--disable-werror \
+		--disable-xen \
+		--enable-tools \
+		--enable-docs \
+		$(use_enable pam) \
+		$(use_enable api xenapi) \
+		$(use_enable ovmf) \
+		$(use_enable ocaml ocamltools) \
+		--with-xenstored=$(usex ocaml 'oxenstored' 'xenstored') \
+		"
+
+	use system-seabios && myconf+=" --with-system-seabios=/usr/share/seabios/bios.bin"
+	use system-qemu && myconf+=" --with-system-qemu=/usr/bin/qemu-system-x86_64"
+	use amd64 && myconf+=" $(use_enable qemu-traditional)"
+	econf ${myconf}
+}
+
+src_compile() {
+	export VARTEXFONTS="${T}/fonts"
+	local myopt
+	use debug && myopt="${myopt} debug=y"
+
+	if test-flag-CC -fno-strict-overflow; then
+		append-flags -fno-strict-overflow
+	fi
+
+	emake V=1 CC="$(tc-getCC)" LD="$(tc-getLD)" AR="$(tc-getAR)" RANLIB="$(tc-getRANLIB)" -C tools ${myopt}
+
+	use doc && emake -C docs txt html
+	emake -C docs man-pages
+}
+
+src_install() {
+	# Override auto-detection in the build system, bug #382573
+	export INITD_DIR=/tmp/init.d
+	export CONFIG_LEAF_DIR=../tmp/default
+
+	# Let the build system compile installed Python modules.
+	local PYTHONDONTWRITEBYTECODE
+	export PYTHONDONTWRITEBYTECODE
+
+	emake DESTDIR="${ED}" DOCDIR="/usr/share/doc/${PF}" \
+		XEN_PYTHON_NATIVE_INSTALL=y install-tools
+
+	# Fix the remaining Python shebangs.
+	python_fix_shebang "${D}"
+
+	# Remove RedHat-specific stuff
+	rm -rf "${D}"tmp || die
+
+	if use doc; then
+		emake DESTDIR="${D}" DOCDIR="/usr/share/doc/${PF}" install-docs
+
+		dohtml -r docs/
+		docinto pdf
+		dodoc ${DOCS[@]}
+		[ -d "${D}"/usr/share/doc/xen ] && mv "${D}"/usr/share/doc/xen/* "${D}"/usr/share/doc/${PF}/html
+	fi
+
+	rm -rf "${D}"/usr/share/doc/xen/
+	doman docs/man?/*
+
+	newconfd "${FILESDIR}"/xendomains.confd xendomains
+	newconfd "${FILESDIR}"/xenstored.confd xenstored
+	newconfd "${FILESDIR}"/xenconsoled.confd xenconsoled
+	newinitd "${FILESDIR}"/xendomains.initd-r2 xendomains
+	newinitd "${FILESDIR}"/xenstored.initd xenstored
+	newinitd "${FILESDIR}"/xenconsoled.initd xenconsoled
+	newinitd "${FILESDIR}"/xencommons.initd xencommons
+	newconfd "${FILESDIR}"/xencommons.confd xencommons
+	newinitd "${FILESDIR}"/xenqemudev.initd xenqemudev
+	newconfd "${FILESDIR}"/xenqemudev.confd xenqemudev
+
+	if use screen; then
+		cat "${FILESDIR}"/xendomains-screen.confd >> "${D}"/etc/conf.d/xendomains || die
+		cp "${FILESDIR}"/xen-consoles.logrotate "${D}"/etc/xen/ || die
+		keepdir /var/log/xen-consoles
+	fi
+
+	# For -static-libs wrt Bug 384355
+	if ! use static-libs; then
+		rm -f "${D}"usr/$(get_libdir)/*.a "${D}"usr/$(get_libdir)/ocaml/*/*.a
+	fi
+
+	# for xendomains
+	keepdir /etc/xen/auto
+
+	# Remove files failing QA AFTER emake installs them, avoiding seeking absent files
+	find "${D}" \( -name openbios-sparc32 -o -name openbios-sparc64 \
+		-o -name openbios-ppc -o -name palcode-clipper \) -delete || die
+}
+
+pkg_postinst() {
+	elog "Official Xen Guide and the offical wiki page:"
+	elog "https://wiki.gentoo.org/wiki/Xen"
+	elog "http://wiki.xen.org/wiki/Main_Page"
+	elog ""
+	elog "Recommended to utilise the xencommons script to config sytem At boot"
+	elog "Add by use of rc-update on completion of the install"
+
+	if ! use hvm; then
+		echo
+		elog "HVM (VT-x and AMD-V) support has been disabled. If you need hvm"
+		elog "support enable the hvm use flag."
+		elog "An x86 or amd64 system is required to build HVM support."
+	fi
+
+	if use qemu; then
+		elog "The qemu-bridge-helper is renamed to the xen-bridge-helper in the in source"
+		elog "build of qemu.  This allows for app-emulation/qemu to be emerged concurrently"
+		elog "with the qemu capable xen.  It is up to the user to distinguish between and utilise"
+		elog "the qemu-bridge-helper and the xen-bridge-helper.  File bugs of any issues that arise"
+	fi
+}
diff --git a/app-emulation/xen-tools/xen-tools-4.8.1-r1.ebuild b/app-emulation/xen-tools/xen-tools-4.8.1-r1.ebuild
new file mode 100644
index 000000000000..4653c90e5629
--- /dev/null
+++ b/app-emulation/xen-tools/xen-tools-4.8.1-r1.ebuild
@@ -0,0 +1,449 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=5
+
+PYTHON_COMPAT=( python2_7 )
+PYTHON_REQ_USE='ncurses,xml,threads'
+
+inherit eutils bash-completion-r1 flag-o-matic multilib python-single-r1 toolchain-funcs versionator
+
+MY_PV=${PV/_/-}
+MAJOR_V="$(get_version_component_range 1-2)"
+
+if [[ $PV == *9999 ]]; then
+	inherit git-r3
+	KEYWORDS=""
+	REPO="xen.git"
+	EGIT_REPO_URI="git://xenbits.xen.org/${REPO}"
+	S="${WORKDIR}/${REPO}"
+else
+	KEYWORDS="~amd64 ~arm ~arm64 ~x86"
+	UPSTREAM_VER=0
+	SECURITY_VER=27
+	# xen-tools's gentoo patches tarball
+	GENTOO_VER=9
+	# xen-tools's gentoo patches version which apply to this specific ebuild
+	GENTOO_GPV=0
+	# xen-tools ovmf's patches
+	OVMF_VER=2
+
+	SEABIOS_VER=1.10.0
+	# OVMF upstream 52a99493cce88a9d4ec8a02d7f1bd1a1001ce60d
+	OVMF_PV=20151110
+
+	[[ -n ${UPSTREAM_VER} ]] && \
+		UPSTREAM_PATCHSET_URI="https://dev.gentoo.org/~dlan/distfiles/${P/-tools/}-upstream-patches-${UPSTREAM_VER}.tar.xz"
+	[[ -n ${SECURITY_VER} ]] && \
+		SECURITY_PATCHSET_URI="https://dev.gentoo.org/~dlan/distfiles/${PN/-tools}-security-patches-${SECURITY_VER}.tar.xz"
+	[[ -n ${GENTOO_VER} ]] && \
+		GENTOO_PATCHSET_URI="https://dev.gentoo.org/~dlan/distfiles/${PN/-tools}-gentoo-patches-${GENTOO_VER}.tar.xz"
+	[[ -n ${OVMF_VER} ]] && \
+		OVMF_PATCHSET_URI="https://dev.gentoo.org/~dlan/distfiles/${PN/-tools}-ovmf-patches-${OVMF_VER}.tar.xz"
+
+	SRC_URI="http://bits.xensource.com/oss-xen/release/${MY_PV}/xen-${MY_PV}.tar.gz
+	http://code.coreboot.org/p/seabios/downloads/get/seabios-${SEABIOS_VER}.tar.gz
+	https://dev.gentoo.org/~dlan/distfiles/seabios-${SEABIOS_VER}.tar.gz
+	ovmf? ( https://dev.gentoo.org/~dlan/distfiles/ovmf-${OVMF_PV}.tar.bz2
+		${OVMF_PATCHSET_URI} )
+	${UPSTREAM_PATCHSET_URI}
+	${SECURITY_PATCHSET_URI}
+	${GENTOO_PATCHSET_URI}"
+
+	S="${WORKDIR}/xen-${MY_PV}"
+fi
+
+DESCRIPTION="Xen tools including QEMU and xl"
+HOMEPAGE="http://xen.org/"
+DOCS=( README docs/README.xen-bugtool )
+
+LICENSE="GPL-2"
+SLOT="0/${MAJOR_V}"
+# Inclusion of IUSE ocaml on stabalizing requires maintainer of ocaml to (get off his hands and) make
+# >=dev-lang/ocaml-4 stable
+# Masked in profiles/eapi-5-files instead
+IUSE="api custom-cflags debug doc flask hvm +qemu ocaml ovmf +qemu-traditional +pam python pygrub screen sdl static-libs system-qemu system-seabios"
+
+REQUIRED_USE="
+	${PYTHON_REQUIRED_USE}
+	pygrub? ( python )
+	ovmf? ( hvm )
+	^^ ( qemu system-qemu )"
+
+COMMON_DEPEND="
+	dev-libs/lzo:2
+	dev-libs/glib:2
+	dev-libs/yajl
+	dev-libs/libaio
+	dev-libs/libgcrypt:0
+	sys-libs/zlib
+	${PYTHON_DEPS}
+"
+
+DEPEND="${COMMON_DEPEND}
+	dev-python/lxml[${PYTHON_USEDEP}]
+	x86? ( sys-devel/dev86
+		sys-power/iasl )
+	pam? ( dev-python/pypam[${PYTHON_USEDEP}] )
+	api? ( dev-libs/libxml2
+		net-misc/curl )
+	ovmf? (
+		!arm? ( !arm64? ( dev-lang/nasm ) )
+		$(python_gen_impl_dep sqlite)
+		)
+	!amd64? ( >=sys-apps/dtc-1.4.0 )
+	amd64? ( sys-devel/bin86
+		system-seabios? ( sys-firmware/seabios )
+		sys-firmware/ipxe
+		sys-devel/dev86
+		sys-power/iasl )
+	dev-lang/perl
+	app-misc/pax-utils
+	doc? (
+		app-doc/doxygen
+		dev-python/markdown[${PYTHON_USEDEP}]
+		dev-tex/latex2html[png,gif]
+		media-gfx/graphviz
+		dev-tex/xcolor
+		media-gfx/transfig
+		dev-texlive/texlive-latexextra
+		virtual/latex-base
+		dev-tex/latexmk
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-pictures
+		dev-texlive/texlive-latexrecommended
+	)
+	hvm? ( x11-proto/xproto
+		!net-libs/libiscsi )
+	qemu? (
+		x11-libs/pixman
+		sdl? ( media-libs/libsdl[X] )
+	)
+	system-qemu? ( app-emulation/qemu[xen] )
+	ocaml? ( dev-ml/findlib
+		>=dev-lang/ocaml-4 )"
+
+RDEPEND="${COMMON_DEPEND}
+	sys-apps/iproute2[-minimal]
+	net-misc/bridge-utils
+	screen? (
+		app-misc/screen
+		app-admin/logrotate
+	)"
+
+# hvmloader is used to bootstrap a fully virtualized kernel
+# Approved by QA team in bug #144032
+QA_WX_LOAD="usr/lib/xen/boot/hvmloader
+	usr/share/qemu-xen/qemu/s390-ccw.img"
+
+RESTRICT="test"
+
+pkg_setup() {
+	python_setup
+	export "CONFIG_LOMOUNT=y"
+
+	#bug 522642, disable compile tools/tests
+	export "CONFIG_TESTS=n"
+
+	if [[ -z ${XEN_TARGET_ARCH} ]] ; then
+		if use x86 && use amd64; then
+			die "Confusion! Both x86 and amd64 are set in your use flags!"
+		elif use x86; then
+			export XEN_TARGET_ARCH="x86_32"
+		elif use amd64 ; then
+			export XEN_TARGET_ARCH="x86_64"
+		elif use arm; then
+			export XEN_TARGET_ARCH="arm32"
+		elif use arm64; then
+			export XEN_TARGET_ARCH="arm64"
+		else
+			die "Unsupported architecture!"
+		fi
+	fi
+}
+
+src_prepare() {
+	# Upstream's patchset
+	if [[ -n ${UPSTREAM_VER} ]]; then
+		einfo "Try to apply Xen Upstream patch set"
+		EPATCH_SUFFIX="patch" \
+		EPATCH_FORCE="yes" \
+		EPATCH_OPTS="-p1" \
+			epatch "${WORKDIR}"/patches-upstream
+	fi
+
+	# Security patchset
+	if [[ -n ${SECURITY_VER} ]]; then
+	einfo "Try to apply Xen Security patch set"
+		# apply main xen patches
+		# Two parallel systems, both work side by side
+		# Over time they may concdense into one. This will suffice for now
+		EPATCH_SUFFIX="patch"
+		EPATCH_FORCE="yes"
+
+		source "${WORKDIR}"/patches-security/${PV}.conf || die
+
+		for i in ${XEN_SECURITY_MAIN}; do
+			epatch "${WORKDIR}"/patches-security/xen/$i
+		done
+
+		# apply qemu-xen/upstream patches
+		pushd "${S}"/tools/qemu-xen/ > /dev/null
+		for i in ${XEN_SECURITY_QEMUU}; do
+			epatch "${WORKDIR}"/patches-security/qemuu/$i
+		done
+		popd > /dev/null
+
+		# apply qemu-traditional patches
+		pushd "${S}"/tools/qemu-xen-traditional/ > /dev/null
+		for i in ${XEN_SECURITY_QEMUT}; do
+			epatch "${WORKDIR}"/patches-security/qemut/$i
+		done
+		popd > /dev/null
+	fi
+
+	# move before Gentoo patch, one patch should apply to seabios, to fix gcc-4.5.x build err
+	mv ../seabios-${SEABIOS_VER} tools/firmware/seabios-dir-remote || die
+	pushd tools/firmware/ > /dev/null
+	ln -s seabios-dir-remote seabios-dir || die
+	popd > /dev/null
+
+	# Gentoo's patchset
+	if [[ -n ${GENTOO_VER} && -n ${GENTOO_GPV} ]]; then
+		einfo "Try to apply Gentoo specific patch set"
+		source "${FILESDIR}"/gentoo-patches.conf || die
+		_gpv=_gpv_${PN/-/_}_${PV//./}_${GENTOO_GPV}
+		for i in ${!_gpv}; do
+			EPATCH_SUFFIX="patch" \
+			EPATCH_FORCE="yes" \
+				epatch "${WORKDIR}"/patches-gentoo/$i
+		done
+	fi
+
+	# Ovmf's patchset
+	if use ovmf; then
+		if [[ -n ${OVMF_VER} ]];then
+			einfo "Try to apply Ovmf patch set"
+			pushd "${WORKDIR}"/ovmf-*/ > /dev/null
+			EPATCH_SUFFIX="patch" \
+			EPATCH_FORCE="yes" \
+			EPATCH_OPTS="-p1" \
+				epatch "${WORKDIR}"/patches-ovmf
+			popd > /dev/null
+		fi
+		mv ../ovmf-${OVMF_PV} tools/firmware/ovmf-dir-remote || die
+	fi
+
+	mv tools/qemu-xen/qemu-bridge-helper.c tools/qemu-xen/xen-bridge-helper.c || die
+
+	# Fix texi2html build error with new texi2html, qemu.doc.html
+	sed -i -e "/texi2html -monolithic/s/-number//" tools/qemu-xen-traditional/Makefile || die
+
+	use api   || sed -e "/SUBDIRS-\$(LIBXENAPI_BINDINGS) += libxen/d" -i tools/Makefile || die
+	sed -e 's:$(MAKE) PYTHON=$(PYTHON) subdirs-$@:LC_ALL=C "$(MAKE)" PYTHON=$(PYTHON) subdirs-$@:' \
+		 -i tools/firmware/Makefile || die
+
+	# Drop .config, fixes to gcc-4.6
+	sed -e '/-include $(XEN_ROOT)\/.config/d' -i Config.mk || die "Couldn't	drop"
+
+	# if the user *really* wants to use their own custom-cflags, let them
+	if use custom-cflags; then
+		einfo "User wants their own CFLAGS - removing defaults"
+
+		# try and remove all the default cflags
+		find "${S}" \( -name Makefile -o -name Rules.mk -o -name Config.mk \) \
+			-exec sed \
+				-e 's/CFLAGS\(.*\)=\(.*\)-O3\(.*\)/CFLAGS\1=\2\3/' \
+				-e 's/CFLAGS\(.*\)=\(.*\)-march=i686\(.*\)/CFLAGS\1=\2\3/' \
+				-e 's/CFLAGS\(.*\)=\(.*\)-fomit-frame-pointer\(.*\)/CFLAGS\1=\2\3/' \
+				-e 's/CFLAGS\(.*\)=\(.*\)-g3*\s\(.*\)/CFLAGS\1=\2 \3/' \
+				-e 's/CFLAGS\(.*\)=\(.*\)-O2\(.*\)/CFLAGS\1=\2\3/' \
+				-i {} + || die "failed to re-set custom-cflags"
+	else
+		unset CFLAGS
+		unset LDFLAGS
+		unset ASFLAGS
+		unset CPPFLAGS
+	fi
+
+	if ! use pygrub; then
+		sed -e '/^SUBDIRS-y += pygrub/d' -i tools/Makefile || die
+	fi
+
+	if ! use python; then
+		sed -e '/^SUBDIRS-y += python$/d' -i tools/Makefile || die
+	fi
+
+	if ! use hvm; then
+		sed -e '/SUBDIRS-$(CONFIG_X86) += firmware/d' -i tools/Makefile || die
+	# Bug 351648
+	elif ! use x86 && ! has x86 $(get_all_abis); then
+		mkdir -p "${WORKDIR}"/extra-headers/gnu || die
+		touch "${WORKDIR}"/extra-headers/gnu/stubs-32.h || die
+		export CPATH="${WORKDIR}"/extra-headers
+	fi
+
+	if use qemu; then
+		if use sdl; then
+			sed -i -e "s:\$\$source/configure:\0 --enable-sdl:" \
+				tools/Makefile || die
+		else
+			sed -i -e "s:\${QEMU_ROOT\:\-\.}/configure:\0 --disable-sdl:" \
+				tools/qemu-xen-traditional/xen-setup || die
+			sed -i -e "s:\$\$source/configure:\0 --disable-sdl:" \
+				tools/Makefile || die
+		fi
+	else
+		# Don't bother with qemu, only needed for fully virtualised guests
+		sed -e "s:install-tools\: tools/qemu-xen-traditional-dir:install-tools\: :g" -i Makefile || die
+	fi
+
+	# Reset bash completion dir; Bug 472438
+	sed -e "s:^BASH_COMPLETION_DIR ?= \$(CONFIG_DIR)/bash_completion.d:BASH_COMPLETION_DIR ?= $(get_bashcompdir):" \
+		-i Config.mk || die
+	sed -i -e "/bash-completion/s/xl\.sh/xl/g" tools/libxl/Makefile || die
+
+	# xencommons, Bug #492332, sed lighter weight than patching
+	sed -e 's:\$QEMU_XEN -xen-domid:test -e "\$QEMU_XEN" \&\& &:' \
+		-i tools/hotplug/Linux/init.d/xencommons.in || die
+
+	# respect multilib, usr/lib/libcacard.so.0.0.0
+	sed -e "/^libdir=/s/\/lib/\/$(get_libdir)/" \
+		-i tools/qemu-xen/configure || die
+
+	#bug 518136, don't build 32bit exactuable for nomultilib profile
+	if [[ "${ARCH}" == 'amd64' ]] && ! has_multilib_profile; then
+		sed -i -e "/x86_emulator/d" tools/tests/Makefile || die
+	fi
+
+	# uncomment lines in xl.conf
+	sed -e 's:^#autoballoon=:autoballoon=:' \
+		-e 's:^#lockfile=:lockfile=:' \
+		-e 's:^#vif.default.script=:vif.default.script=:' \
+		-i tools/examples/xl.conf  || die
+
+	# Bug #575868 converted to a sed statement, typo of one char
+	sed -e "s:granter’s:granter's:" -i xen/include/public/grant_table.h || die
+
+	epatch_user
+}
+
+src_configure() {
+	local myconf="--prefix=${PREFIX}/usr \
+		--libdir=${PREFIX}/usr/$(get_libdir) \
+		--libexecdir=${PREFIX}/usr/libexec \
+		--localstatedir=${EPREFIX}/var \
+		--disable-werror \
+		--disable-xen \
+		--enable-tools \
+		--enable-docs \
+		$(use_enable pam) \
+		$(use_enable api xenapi) \
+		$(use_enable ovmf) \
+		$(use_enable ocaml ocamltools) \
+		--with-xenstored=$(usex ocaml 'oxenstored' 'xenstored') \
+		"
+
+	use system-seabios && myconf+=" --with-system-seabios=/usr/share/seabios/bios.bin"
+	use system-qemu && myconf+=" --with-system-qemu=/usr/bin/qemu-system-x86_64"
+	use amd64 && myconf+=" $(use_enable qemu-traditional)"
+	econf ${myconf}
+}
+
+src_compile() {
+	export VARTEXFONTS="${T}/fonts"
+	local myopt
+	use debug && myopt="${myopt} debug=y"
+
+	if test-flag-CC -fno-strict-overflow; then
+		append-flags -fno-strict-overflow
+	fi
+
+	emake V=1 CC="$(tc-getCC)" LD="$(tc-getLD)" AR="$(tc-getAR)" RANLIB="$(tc-getRANLIB)" -C tools ${myopt}
+
+	use doc && emake -C docs txt html
+	emake -C docs man-pages
+}
+
+src_install() {
+	# Override auto-detection in the build system, bug #382573
+	export INITD_DIR=/tmp/init.d
+	export CONFIG_LEAF_DIR=../tmp/default
+
+	# Let the build system compile installed Python modules.
+	local PYTHONDONTWRITEBYTECODE
+	export PYTHONDONTWRITEBYTECODE
+
+	emake DESTDIR="${ED}" DOCDIR="/usr/share/doc/${PF}" \
+		XEN_PYTHON_NATIVE_INSTALL=y install-tools
+
+	# Fix the remaining Python shebangs.
+	python_fix_shebang "${D}"
+
+	# Remove RedHat-specific stuff
+	rm -rf "${D}"tmp || die
+
+	if use doc; then
+		emake DESTDIR="${D}" DOCDIR="/usr/share/doc/${PF}" install-docs
+
+		dohtml -r docs/
+		docinto pdf
+		dodoc ${DOCS[@]}
+		[ -d "${D}"/usr/share/doc/xen ] && mv "${D}"/usr/share/doc/xen/* "${D}"/usr/share/doc/${PF}/html
+	fi
+
+	rm -rf "${D}"/usr/share/doc/xen/
+	doman docs/man?/*
+
+	newconfd "${FILESDIR}"/xendomains.confd xendomains
+	newconfd "${FILESDIR}"/xenstored.confd xenstored
+	newconfd "${FILESDIR}"/xenconsoled.confd xenconsoled
+	newinitd "${FILESDIR}"/xendomains.initd-r2 xendomains
+	newinitd "${FILESDIR}"/xenstored.initd xenstored
+	newinitd "${FILESDIR}"/xenconsoled.initd xenconsoled
+	newinitd "${FILESDIR}"/xencommons.initd xencommons
+	newconfd "${FILESDIR}"/xencommons.confd xencommons
+	newinitd "${FILESDIR}"/xenqemudev.initd xenqemudev
+	newconfd "${FILESDIR}"/xenqemudev.confd xenqemudev
+
+	if use screen; then
+		cat "${FILESDIR}"/xendomains-screen.confd >> "${D}"/etc/conf.d/xendomains || die
+		cp "${FILESDIR}"/xen-consoles.logrotate "${D}"/etc/xen/ || die
+		keepdir /var/log/xen-consoles
+	fi
+
+	# For -static-libs wrt Bug 384355
+	if ! use static-libs; then
+		rm -f "${D}"usr/$(get_libdir)/*.a "${D}"usr/$(get_libdir)/ocaml/*/*.a
+	fi
+
+	# for xendomains
+	keepdir /etc/xen/auto
+
+	# Remove files failing QA AFTER emake installs them, avoiding seeking absent files
+	find "${D}" \( -name openbios-sparc32 -o -name openbios-sparc64 \
+		-o -name openbios-ppc -o -name palcode-clipper \) -delete || die
+}
+
+pkg_postinst() {
+	elog "Official Xen Guide and the offical wiki page:"
+	elog "https://wiki.gentoo.org/wiki/Xen"
+	elog "http://wiki.xen.org/wiki/Main_Page"
+	elog ""
+	elog "Recommended to utilise the xencommons script to config sytem At boot"
+	elog "Add by use of rc-update on completion of the install"
+
+	if ! use hvm; then
+		echo
+		elog "HVM (VT-x and AMD-V) support has been disabled. If you need hvm"
+		elog "support enable the hvm use flag."
+		elog "An x86 or amd64 system is required to build HVM support."
+	fi
+
+	if use qemu; then
+		elog "The qemu-bridge-helper is renamed to the xen-bridge-helper in the in source"
+		elog "build of qemu.  This allows for app-emulation/qemu to be emerged concurrently"
+		elog "with the qemu capable xen.  It is up to the user to distinguish between and utilise"
+		elog "the qemu-bridge-helper and the xen-bridge-helper.  File bugs of any issues that arise"
+	fi
+}