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diff --git a/tools/Makefile b/tools/Makefile
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+include scripts/Makefile.include
+
+help:
+	@echo 'Possible targets:'
+	@echo ''
+	@echo '  cgroup     - cgroup tools'
+	@echo '  cpupower   - a tool for all things x86 CPU power'
+	@echo '  firewire   - the userspace part of nosy, an IEEE-1394 traffic sniffer'
+	@echo '  lguest     - a minimal 32-bit x86 hypervisor'
+	@echo '  perf       - Linux performance measurement and analysis tool'
+	@echo '  selftests  - various kernel selftests'
+	@echo '  turbostat  - Intel CPU idle stats and freq reporting tool'
+	@echo '  usb        - USB testing tools'
+	@echo '  virtio     - vhost test module'
+	@echo '  net        - misc networking tools'
+	@echo '  vm         - misc vm tools'
+	@echo '  x86_energy_perf_policy - Intel energy policy tool'
+	@echo ''
+	@echo 'You can do:'
+	@echo ' $$ make -C tools/ <tool>_install'
+	@echo ''
+	@echo '  from the kernel command line to build and install one of'
+	@echo '  the tools above'
+	@echo ''
+	@echo '  $$ make tools/install'
+	@echo ''
+	@echo '  installs all tools.'
+	@echo ''
+	@echo 'Cleaning targets:'
+	@echo ''
+	@echo '  all of the above with the "_clean" string appended cleans'
+	@echo '    the respective build directory.'
+	@echo '  clean: a summary clean target to clean _all_ folders'
+
+cpupower: FORCE
+	$(call descend,power/$@)
+
+cgroup firewire guest usb virtio vm net: FORCE
+	$(call descend,$@)
+
+liblk: FORCE
+	$(call descend,lib/lk)
+
+perf: liblk FORCE
+	$(call descend,$@)
+
+selftests: FORCE
+	$(call descend,testing/$@)
+
+turbostat x86_energy_perf_policy: FORCE
+	$(call descend,power/x86/$@)
+
+cpupower_install:
+	$(call descend,power/$(@:_install=),install)
+
+cgroup_install firewire_install lguest_install perf_install usb_install virtio_install vm_install net_install:
+	$(call descend,$(@:_install=),install)
+
+selftests_install:
+	$(call descend,testing/$(@:_clean=),install)
+
+turbostat_install x86_energy_perf_policy_install:
+	$(call descend,power/x86/$(@:_install=),install)
+
+install: cgroup_install cpupower_install firewire_install lguest_install \
+		perf_install selftests_install turbostat_install usb_install \
+		virtio_install vm_install net_install x86_energy_perf_policy_install
+
+cpupower_clean:
+	$(call descend,power/cpupower,clean)
+
+cgroup_clean firewire_clean lguest_clean usb_clean virtio_clean vm_clean net_clean:
+	$(call descend,$(@:_clean=),clean)
+
+liblk_clean:
+	$(call descend,lib/lk,clean)
+
+perf_clean: liblk_clean
+	$(call descend,$(@:_clean=),clean)
+
+selftests_clean:
+	$(call descend,testing/$(@:_clean=),clean)
+
+turbostat_clean x86_energy_perf_policy_clean:
+	$(call descend,power/x86/$(@:_clean=),clean)
+
+clean: cgroup_clean cpupower_clean firewire_clean lguest_clean perf_clean \
+		selftests_clean turbostat_clean usb_clean virtio_clean \
+		vm_clean net_clean x86_energy_perf_policy_clean
+
+.PHONY: FORCE