Set ppi=off in hw_compat_11_0[] so that older machine types do not register the "tpm-ppi" RAMBlock, restoring backward migration. Signed-off-by: Mohammadfaiz Bawa <mbawa@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Link: https://lore.kernel.org/qemu-devel/20260619093140.832136-4-mbawa@redhat.com Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>