diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 0552486805..7dad7231ee 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -693,6 +693,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
"virtio-gpu.blob", /* QEMU_CAPS_VIRTIO_GPU_BLOB */
"rbd-encryption-layering", /* QEMU_CAPS_RBD_ENCRYPTION_LAYERING */
"rbd-encryption-luks-any", /* QEMU_CAPS_RBD_ENCRYPTION_LUKS_ANY */
+ "qcow2-discard-no-unref", /* QEMU_CAPS_QCOW2_DISCARD_NO_UNREF */
);
@@ -1536,6 +1537,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsQMPSchemaQueries[] = {
{ "blockdev-add/arg-type/+rbd/encrypt/parent", QEMU_CAPS_RBD_ENCRYPTION_LAYERING },
{ "blockdev-add/arg-type/+rbd/encrypt/format/^luks-any", QEMU_CAPS_RBD_ENCRYPTION_LUKS_ANY },
{ "blockdev-add/arg-type/+nbd/tls-hostname", QEMU_CAPS_BLOCKDEV_NBD_TLS_HOSTNAME },
+ { "blockdev-add/arg-type/+qcow2/discard-no-unref", QEMU_CAPS_QCOW2_DISCARD_NO_UNREF },
{ "blockdev-snapshot/$allow-write-only-overlay", QEMU_CAPS_BLOCKDEV_SNAPSHOT_ALLOW_WRITE_ONLY },
{ "chardev-add/arg-type/backend/+socket/data/reconnect", QEMU_CAPS_CHARDEV_RECONNECT },
{ "device_add/$json-cli-hotplug", QEMU_CAPS_DEVICE_JSON },
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 3b55aed07a..ce545cb2cc 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -672,6 +672,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
QEMU_CAPS_VIRTIO_GPU_BLOB, /* -device virtio-gpu-*.blob= */
QEMU_CAPS_RBD_ENCRYPTION_LAYERING, /* layered encryption support for Ceph RBD */
QEMU_CAPS_RBD_ENCRYPTION_LUKS_ANY, /* luks-any (LUKS and LUKS2) encryption format for Ceph RBD */
+ QEMU_CAPS_QCOW2_DISCARD_NO_UNREF, /* qcow2 block driver allows discards without unrefing the sector */
QEMU_CAPS_LAST /* this must always be the last item */
} virQEMUCapsFlags;
diff --git a/tests/qemucapabilitiesdata/caps_8.1.0_x86_64.xml b/tests/qemucapabilitiesdata/caps_8.1.0_x86_64.xml
index 50ed122fa4..58bb206f79 100644
--- a/tests/qemucapabilitiesdata/caps_8.1.0_x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_8.1.0_x86_64.xml
@@ -206,6 +206,7 @@
+
8000050
43100245
v8.0.0-1619-g369081c455