oem-azure: add hyperv daemons

.github/workflows/kernel-apply-patch.sh

@@ -11,6 +11,7 @@ if ! check_remote_branch "linux-${VERSION_NEW}-${TARGET_BRANCH}"; then
     exit 0
 fi
 
+# Dive into ebuild repo section of SDK
 pushd "${SDK_OUTER_OVERLAY}"
 
 # trim the 3rd part in the input semver, e.g. from 5.4.1 to 5.4
@@ -31,6 +32,12 @@ for pkg in sources modules kernel; do
     popd
 done
 
+# Update hyperv daemons ebuild soft-link to reflect new kernel version
+find -D exec app-emulation/hv-daemons/ -type l -exec rm '{}' \;
+ln -s app-emulation/hv-daemons/hv-daemons-9999.ebuild \
+      app-emulation/hv-daemons/hv-daemons-${VERSION_NEW}.ebuild
+
+# Leave ebuild repo section of SDK
 popd
 
 function get_lwn_link() {
@@ -72,7 +79,8 @@ generate_update_changelog 'Linux' "${VERSION_NEW}" "${URL}" 'linux' "${OLD_VERSI
 
 commit_changes sys-kernel/coreos-sources "${VERSION_OLD}" "${VERSION_NEW}" \
                sys-kernel/coreos-modules \
-               sys-kernel/coreos-kernel
+               sys-kernel/coreos-kernel \
+               app-emulation/hv-daemons
 
 cleanup_repo
 

changelog/changes/2024-09-12-azure-hv-daemons.md

@@ -0,0 +1 @@
+- Azure, HyperV: Added daemons `kvp`, `vss`, and `fcopy` for better HyperV hypervisor integration with Flatcar guests ([scripts#2309](https://github.com/flatcar/scripts/pull/2309)).

sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/files/hv_fcopy_daemon.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Hyper-V FCOPY daemon
+ConditionPathExists=/dev/vmbus/hv_fcopy
+
+[Service]
+ExecStart=/usr/bin/hv_fcopy_daemon --no-daemon
+
+[Install]
+WantedBy=multi-user.target

sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/files/hv_kvp_daemon.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Hyper-V KVP daemon
+ConditionPathExists=/dev/vmbus/hv_kvp
+
+[Service]
+ExecStart=/usr/bin/hv_kvp_daemon --no-daemon
+
+[Install]
+WantedBy=multi-user.target

sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/files/hv_vss_daemon.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Hyper-V VSS daemon
+ConditionPathExists=/dev/vmbus/hv_vss
+
+[Service]
+ExecStart=/usr/bin/hv_vss_daemon --no-daemon
+
+[Install]
+WantedBy=multi-user.target

sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.6.50.ebuild

@@ -0,0 +1 @@
+hv-daemons-9999.ebuild

sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-9999.ebuild

@@ -0,0 +1,32 @@
+# Copyright 2044-2016 The Flatcar Maintainers
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit coreos-kernel savedconfig systemd
+
+DESCRIPTION="HyperV guest support daemons."
+KEYWORDS="amd64 arm64"
+
+if [[ "${PV}" == 9999 ]]; then
+    KEYWORDS="~amd64 ~arm64"
+fi
+
+src_compile() {
+    # Build hv_vss_daemon, hv_kvp_daemon, hv_fcopy_daemon 
+    kmake tools/hv
+}
+
+src_install() {
+    dobin "${S}/build/tools/hv/hv_fcopy_daemon"
+    dobin "${S}/build/tools/hv/hv_kvp_daemon"
+    dobin "${S}/build/tools/hv/hv_vss_daemon"
+
+    systemd_dounit "${FILESDIR}/hv_fcopy_daemon.service"
+    systemd_dounit "${FILESDIR}/hv_kvp_daemon.service"
+    systemd_dounit "${FILESDIR}/hv_vss_daemon.service"
+
+    systemd_enable_service "multi-user.target" "hv_fcopy_daemon.service"
+    systemd_enable_service "multi-user.target" "hv_kvp_daemon.service"
+    systemd_enable_service "multi-user.target" "hv_vss_daemon.service"
+}

sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/metadata.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+</pkgmetadata>

sdk_container/src/third_party/coreos-overlay/coreos-base/oem-azure/oem-azure-2.9.1.1-r2.ebuild → sdk_container/src/third_party/coreos-overlay/coreos-base/oem-azure/oem-azure-2.9.1.1-r3.ebuild

@@ -17,6 +17,7 @@ IUSE=""
 RDEPEND="
   ~app-emulation/wa-linux-agent-${PV}
   net-misc/chrony
+  app-emulation/hv-daemons
 "
 
 # for coreos-base/common-oem-files

sdk_container/src/third_party/coreos-overlay/coreos-base/oem-hyperv/oem-hyperv-0.1.0-r1.ebuild

@@ -15,6 +15,10 @@ IUSE=""
 # no source directory
 S="${WORKDIR}"
 
+RDEPEND="
+  app-emulation/hv-daemons
+"
+
 src_prepare() {
 	default
 	sed -e "s\\@@OEM_VERSION_ID@@\\${PVR}\\g" \