diff --git a/meta/recipes-core/images/core-image-ptest-all.bb b/meta/recipes-core/images/core-image-ptest-all.bb
index 1472451675..81c9b2d68a 100644
--- a/meta/recipes-core/images/core-image-ptest-all.bb
+++ b/meta/recipes-core/images/core-image-ptest-all.bb
@@ -1,25 +1,25 @@
-inherit features_check
-REQUIRED_DISTRO_FEATURES = "ptest"
-
-require core-image-minimal.bb
-require conf/distro/include/ptest-packagelists.inc
-
-DESCRIPTION += "Also includes ptest packages."
+DESCRIPTION = "Recipe to trigger execution of all ptest images."
 HOMEPAGE = "https://www.yoctoproject.org/"
 
+LICENSE = "MIT"
+
+inherit features_check nopackages
+REQUIRED_DISTRO_FEATURES = "ptest"
+
+require conf/distro/include/ptest-packagelists.inc
+
 # Include the full set of ptests
-IMAGE_INSTALL += "${PTESTS_FAST} ${PTESTS_SLOW}"
+PTESTS = "${PTESTS_FAST} ${PTESTS_SLOW}"
 
-# This image is sufficiently large (~1.8GB) that we need to be careful that it fits in a live
-# image (which has a 4GB limit), so nullify the overhead factor (1.3x out of the
-# box) and explicitly add just 1100MB.
-# strace-ptest in particular needs more than 500MB
-IMAGE_OVERHEAD_FACTOR = "1.0"
-IMAGE_ROOTFS_EXTRA_SPACE = "1124288"
+do_testimage[noexec] = "1"
+do_testimage[depends] = "${@' '.join(['core-image-ptest-'+x.replace('-ptest', '')+':do_testimage' for x in d.getVar('PTESTS').split()])}"
 
-# ptests need more memory than standard to avoid the OOM killer
-# also lttng-tools needs /tmp that has at least 2G
-QB_MEM = "-m 4096"
+do_build[depends] = "${@' '.join(['core-image-ptest-'+x.replace('-ptest', '')+':do_build' for x in d.getVar('PTESTS').split()])}"
 
-# Sadly at the moment the full set of ptests is not robust enough and sporadically fails in random places
-PTEST_EXPECT_FAILURE = "1"
+# normally image.bbclass would do this
+EXCLUDE_FROM_WORLD = "1"
+
+python () {
+    if bb.utils.contains('IMAGE_CLASSES', 'testimage', True, False, d):
+        bb.build.addtask("do_testimage", "", "", d)
+}
diff --git a/meta/recipes-core/images/core-image-ptest-fast.bb b/meta/recipes-core/images/core-image-ptest-fast.bb
index 40df274c4c..e768afb302 100644
--- a/meta/recipes-core/images/core-image-ptest-fast.bb
+++ b/meta/recipes-core/images/core-image-ptest-fast.bb
@@ -1,24 +1,6 @@
-inherit features_check
-REQUIRED_DISTRO_FEATURES = "ptest"
+require core-image-ptest-all.bb
 
-require core-image-minimal.bb
-require conf/distro/include/ptest-packagelists.inc
+DESCRIPTION = "Recipe to trigger execution of all fast ptest images."
 
-# Include only fast (< 30 sec) ptests
-IMAGE_INSTALL += "${PTESTS_FAST}"
+PTESTS = "${PTESTS_FAST}"
 
-DESCRIPTION += "Also includes ptest packages with fast execution times to allow for more automated QA."
-HOMEPAGE = "https://www.yoctoproject.org/"
-
-# This image is sufficiently large (~1.8GB) that it can't actually fit in a live
-# image (which has a 4GB limit), so nullify the overhead factor (1.3x out of the
-# box) and explicitly add just 1500MB.
-# strace-ptest in particular needs more than 500MB
-IMAGE_OVERHEAD_FACTOR = "1.0"
-IMAGE_ROOTFS_EXTRA_SPACE = "1524288"
-
-# ptests need more memory than standard to avoid the OOM killer
-QB_MEM = "-m 1024"
-
-# Sadly at the moment the fast set of ptests is not robust enough and sporadically fails in a couple of places
-PTEST_EXPECT_FAILURE = "1"
diff --git a/meta/recipes-core/images/core-image-ptest.bb b/meta/recipes-core/images/core-image-ptest.bb
new file mode 100644
index 0000000000..0c67943b05
--- /dev/null
+++ b/meta/recipes-core/images/core-image-ptest.bb
@@ -0,0 +1,39 @@
+inherit features_check
+REQUIRED_DISTRO_FEATURES = "ptest"
+
+require core-image-minimal.bb
+require conf/distro/include/ptest-packagelists.inc
+
+DESCRIPTION += "Also including the ${MCNAME} ptest package."
+HOMEPAGE = "https://www.yoctoproject.org/"
+
+PTESTS = "${PTESTS_SLOW} ${PTESTS_FAST}"
+
+IMAGE_INSTALL:append = " ${MCNAME}-ptest openssh"
+
+BBCLASSEXTEND = "${@' '.join(['mcextend:'+x.replace('-ptest', '') for x in d.getVar('PTESTS').split()])}"
+
+# The image can sufficiently large (~1.8GB) that we need to be careful that it fits in a live
+# image (which has a 4GB limit), so nullify the overhead factor (1.3x out of the
+# box) and explicitly add up to 1500MB.
+# strace-ptest in particular needs more than 500MB
+IMAGE_OVERHEAD_FACTOR = "1.0"
+IMAGE_ROOTFS_EXTRA_SPACE = "324288"
+IMAGE_ROOTFS_EXTRA_SPACE:virtclass-mcextend-strace = "1024288"
+IMAGE_ROOTFS_EXTRA_SPACE:virtclass-mcextend-lttng-tools = "1524288"
+
+# ptests need more memory than standard to avoid the OOM killer
+QB_MEM = "-m 1024"
+QB_MEM:virtclass-mcextend-lttng-tools = "-m 4096"
+QB_MEM:virtclass-mcextend-python3-cryptography = "-m 4096"
+
+TEST_SUITES = "ping ssh parselogs ptest"
+
+# Sadly at the moment the full set of ptests is not robust enough and sporadically fails in random places
+PTEST_EXPECT_FAILURE = "1"
+
+python () {
+    if not d.getVar("MCNAME"):
+        raise bb.parse.SkipRecipe("No class extension set")
+}
+