xen: separate recipes for hypervisor and tools; switch to git as source

This change changes the names of many packages produced: the
xen-tools recipe now builds packages previous built by the xen
recipe, so the package prefix changes from "xen-" to "xen-tools-".
A temporary bbappend is provided for qemu to ease the transition.

Multiple motivations for recipe separation:
- improves efficiency of incremental build and development
- supports building the hypervisor and tools with different toolchains
  and for different architectures

Switch to using a git recipe on the Xen stable branch:
- enables easier tracking of critical XSA security updates applied
  upstream by just advancing SRCREV along the branch
Revision has been set to the tip of the stable-4.12 branch, which
has the one XSA-312 patch applied on top of RELEASE-4.12.2.

The recipe refactor externalizes the block tap components, to enable optional
building of blktap in a separate recipe outside xen-tools, needed by OpenXT.

xenstored is made a virtual package to support switching between
alternative implementations (several exist).

Update xen-image-minimal to install the xen-tools package, which
replaces what was previously xen-base.

Determine the flask policy filename, which is Xen-version specific,
using the same method as the Xen build system.

qemu: update PACKAGECONFIG[xen] for xen package renaming: allows builds
to continue correctly in the meantime while openembedded core and poky
are updated.

OpenXT ticket reference: OXT-1694

Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/recipes-extended/xen/xen-blktap.inc b/recipes-extended/xen/xen-blktap.inc
new file mode 100644
index 00000000..5f385ddc
--- /dev/null
+++ b/recipes-extended/xen/xen-blktap.inc
@@ -0,0 +1,76 @@
+# The Xen block tap components are packaged separately here to support
+# the option to build them in a separate recipe from xen-tools.
+
+BLKTAP_PACKAGES ?= " \
+    ${PN}-blktap \
+    ${PN}-libblktap \
+    ${PN}-libblktapctl \
+    ${PN}-libblktapctl-dev \
+    ${PN}-libblktap-dev \
+    ${PN}-libvhd \
+    ${PN}-libvhd-dev \
+    ${PN}-blktap-staticdev \
+    "
+
+BLKTAP_PROVIDES ?= " \
+    virtual/blktap \
+    virtual/libblktap \
+    virtual/libblktapctl \
+    virtual/libvhd \
+    "
+
+BLKTAP_RRECOMMENDS ?= " \
+    virtual/blktap \
+    virtual/libblktap \
+    virtual/libblktapctl \
+    virtual/libvhd \
+    "
+
+RPROVIDES_${PN}-blktap = "virtual/blktap"
+RPROVIDES_${PN}-libblktap = "virtual/libblktap"
+RPROVIDES_${PN}-libblktapctl = "virtual/libblktapctl"
+RPROVIDES_${PN}-libvhd = "virtual/libvhd"
+
+FILES_${PN}-blktap-staticdev += "\
+    ${libdir}/libblktapctl.a \
+    ${libdir}/libvhd.a \
+    ${libdir}/libblktap.a \
+    "
+
+FILES_${PN}-libblktapctl = "${libdir}/libblktapctl.so.*"
+FILES_${PN}-libblktapctl-dev = " \
+    ${libdir}/libblktapctl.so \
+    ${libdir}/pkgconfig/xenblktapctl.pc \
+    ${datadir}/pkgconfig/xenblktapctl.pc \
+    "
+
+FILES_${PN}-libvhd = "${libdir}/libvhd.so.*"
+FILES_${PN}-libvhd-dev = " \
+    ${libdir}/libvhd.so \
+    ${libdir}/pkgconfig/vhd.pc \
+    ${datadir}/pkgconfig/vhd.pc \
+    "
+
+FILES_${PN}-libblktap = "${libdir}/libblktap.so.*"
+FILES_${PN}-libblktap-dev = " \
+    ${libdir}/libblktap.so \
+    ${libdir}/pkgconfig/blktap.pc \
+    ${datadir}/pkgconfig/blktap.pc \
+    "
+
+FILES_${PN}-blktap = "\
+    ${sbindir}/blktapctrl \
+    ${sbindir}/img2qcow \
+    ${sbindir}/lock-util \
+    ${sbindir}/qcow2raw \
+    ${sbindir}/qcow-create \
+    ${sbindir}/tap-ctl \
+    ${sbindir}/tapdisk \
+    ${sbindir}/tapdisk2 \
+    ${sbindir}/tapdisk-client \
+    ${sbindir}/tapdisk-diff \
+    ${sbindir}/tapdisk-stream \
+    ${sbindir}/td-util \
+    ${sbindir}/vhd-update \
+    ${sbindir}/vhd-util \
+    "