Add qemu guest agent (#505)

* Add qemu guest agent

* Fix make file

* Fix targets

* Convert it to autobuild

* Fix paths

* fix target

* Fix options

* Fix startup

* Update kernel

* Fix state dir

* Only load on kvm

buildroot-external/Config.in

@@ -4,3 +4,4 @@ source "$BR2_EXTERNAL_HASSOS_PATH/package/apparmor/Config.in"
 source "$BR2_EXTERNAL_HASSOS_PATH/package/bluetooth-bcm43xx/Config.in"
 source "$BR2_EXTERNAL_HASSOS_PATH/package/bluetooth-rtl8723/Config.in"
 source "$BR2_EXTERNAL_HASSOS_PATH/package/hardkernel-boot/Config.in"
+source "$BR2_EXTERNAL_HASSOS_PATH/package/qemu-guest-agent/Config.in"

buildroot-external/board/intel/ova/kernel.config

@@ -5,6 +5,7 @@ CONFIG_VMWARE_PVSCSI=y
 CONFIG_VMWARE_VMCI_VSOCKETS=y
 CONFIG_VMWARE_VMCI=y
 CONFIG_VMWARE_BALLOON=y
+CONFIG_VMWARE_PVSCSI=y
 
 CONFIG_VIRTIO=y
 CONFIG_VIRTIO_PCI=y
@@ -12,6 +13,9 @@ CONFIG_VIRTIO_NET=y
 CONFIG_VIRTIO_BALLOON=m
 CONFIG_VIRTIO_INPUT=m
 CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_CONSOLE=m
+CONFIG_VIRTIO_VSOCKETS=m
+CONFIG_SCSI_VIRTIO=y
 CONFIG_HW_RANDOM_VIRTIO=y
 
 CONFIG_SCSI_LOWLEVEL=y
@@ -27,4 +31,5 @@ CONFIG_HYPERV_BALLOON=m
 CONFIG_HYPERV_KEYBOARD=m
 CONFIG_HYPERV_STORAGE=y
 CONFIG_HYPERV_NET=y
+CONFIG_HYPERV_VSOCKETS=m
 CONFIG_FB_HYPERV=y

buildroot-external/configs/ova_defconfig

@@ -56,6 +56,7 @@ BR2_PACKAGE_TINI=y
 BR2_PACKAGE_DOCKER_ENGINE=y
 BR2_PACKAGE_DOCKER_CLI=y
 BR2_PACKAGE_OPENVMTOOLS=y
+BR2_PACKAGE_QEMU_GUEST_AGENT=y
 BR2_PACKAGE_RAUC=y
 BR2_PACKAGE_RAUC_NETWORK=y
 BR2_PACKAGE_RNG_TOOLS=y

buildroot-external/package/qemu-guest-agent/Config.in

@@ -0,0 +1,9 @@
+config BR2_PACKAGE_QEMU_GUEST_AGENT
+	depends on BR2_USE_MMU # libglib2
+    depends on BR2_USE_WCHAR # libglib2
+    depends on BR2_TOOLCHAIN_HAS_THREADS # libglib2
+	select BR2_PACKAGE_LIBGLIB2
+	select BR2_PACKAGE_ZLIB
+	bool "QEMU Guest Agent"
+	help
+	  QEMU guest agent for qemu based virtualisations

buildroot-external/package/qemu-guest-agent/qemu-guest-agent.mk

@@ -0,0 +1,110 @@
+################################################################################
+#
+# qemu-guest-agent
+#
+################################################################################
+
+QEMU_GUEST_AGENT_VERSION = 3.1.1.1
+QEMU_GUEST_AGENT_SOURCE = qemu-$(QEMU_GUEST_AGENT_VERSION).tar.xz
+QEMU_GUEST_AGENT_SITE = http://download.qemu.org
+QEMU_GUEST_AGENT_LICENSE = GPL-2.0, LGPL-2.1, MIT, BSD-3-Clause, BSD-2-Clause, Others/BSD-1c
+QEMU_GUEST_AGENT_LICENSE_FILES = COPYING COPYING.LIB
+# NOTE: there is no top-level license file for non-(L)GPL licenses;
+#       the non-(L)GPL license texts are specified in the affected
+#       individual source files.
+
+QEMU_GUEST_AGENT_DEPENDENCIES = host-pkgconf libglib2 zlib
+
+# Need the LIBS variable because librt and libm are
+# not automatically pulled. :-(
+QEMU_GUEST_AGENT_LIBS = -lrt -lm
+
+QEMU_GUEST_AGENT_VARS = LIBTOOL=$(HOST_DIR)/bin/libtool
+
+QEMU_GUEST_AGENT_OPTS = --enable-guest-agent
+
+# Override CPP, as it expects to be able to call it like it'd
+# call the compiler.
+define QEMU_GUEST_AGENT_CONFIGURE_CMDS
+	( cd $(@D); \
+		LIBS='$(QEMU_GUEST_AGENT_LIBS)' \
+		$(TARGET_CONFIGURE_OPTS) \
+		$(TARGET_CONFIGURE_ARGS) \
+		CPP="$(TARGET_CC) -E" \
+		$(QEMU_GUEST_AGENT_VARS) \
+		./configure \
+			--prefix=/usr \
+			--localstatedir=/var \
+			--cross-prefix=$(TARGET_CROSS) \
+			--audio-drv-list= \
+			--disable-kvm \
+			--disable-linux-user \
+			--disable-linux-aio \
+			--disable-xen \
+			--disable-docs \
+			--disable-curl \
+			--disable-gnutls \
+			--disable-gtk \
+			--disable-vte \
+			--disable-vnc-jpeg \
+			--disable-opengl \
+			--disable-usb-redir \
+			--disable-sdl \
+			--disable-system \
+			--disable-user \
+			--disable-guest-agent \
+			--disable-nettle \
+			--disable-gcrypt \
+			--disable-curses \
+			--disable-vnc \
+			--disable-virtfs \
+			--disable-brlapi \
+			--disable-fdt \
+			--disable-bluez \
+			--disable-kvm \
+			--disable-rdma \
+			--disable-vde \
+			--disable-netmap \
+			--disable-cap-ng \
+			--disable-attr \
+			--disable-vhost-net \
+			--disable-spice \
+			--disable-rbd \
+			--disable-libiscsi \
+			--disable-libnfs \
+			--disable-smartcard \
+			--disable-libusb \
+			--disable-usb-redir \
+			--disable-lzo \
+			--disable-snappy \
+			--disable-bzip2 \
+			--disable-seccomp \
+			--disable-coroutine-pool \
+			--disable-glusterfs \
+			--disable-tpm \
+			--disable-numa \
+			--disable-blobs \
+			--disable-capstone \
+			--disable-tools \
+			--disable-tcg-interpreter \
+			$(QEMU_GUEST_AGENT_OPTS) \
+	)
+endef
+
+define QEMU_GUEST_AGENT_BUILD_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)
+endef
+
+define QEMU_GUEST_AGENT_INSTALL_TARGET_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) $(QEMU_GUEST_AGENT_MAKE_ENV) DESTDIR=$(TARGET_DIR) install
+endef
+
+define QEMU_GUEST_AGENT_INSTALL_INIT_SYSTEMD
+	$(INSTALL) -D -m 644 $(QEMU_GUEST_AGENT_PKGDIR)/qemu-guest.service \
+		$(TARGET_DIR)/usr/lib/systemd/system/qemu-guest.service
+	$(INSTALL) -d $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants
+	ln -fs ../../../../usr/lib/systemd/system/qemu-guest.service \
+		$(TARGET_DIR)/etc/systemd/system/multi-user.target.wants/qemu-guest.service
+endef
+
+$(eval $(generic-package))

buildroot-external/package/qemu-guest-agent/qemu-guest.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=QEMU Guest Agent
+After=syslog.target network.target
+ConditionVirtualization=kvm
+
+[Service]
+ExecStart=/usr/bin/qemu-ga -m virtio-serial -p /dev/virtio-ports/org.qemu.guest_agent.0
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target