From 5e33de4f00c25f12afdf02481e0dd4013a7e96b9 Mon Sep 17 00:00:00 2001 From: Mohammadfaiz Bawa Date: Fri, 19 Jun 2026 15:01:40 +0530 Subject: [PATCH] hw/core/machine: disable tpm-tis-device PPI for machine type <= 11.0 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 Reviewed-by: Stefan Berger Link: https://lore.kernel.org/qemu-devel/20260619093140.832136-4-mbawa@redhat.com Signed-off-by: Stefan Berger --- hw/core/machine.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/core/machine.c b/hw/core/machine.c index 15886a56b1..805148678d 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -44,6 +44,7 @@ GlobalProperty hw_compat_11_0[] = { { "chardev-vc", "encoding", "cp437" }, { "tpm-crb", "cap-chunk", "off" }, { "tpm-crb", "x-allow-chunk-migration", "off" }, + { "tpm-tis-device", "ppi", "off" }, { TYPE_ARM_SMMUV3, "ats", "off" }, { TYPE_ARM_SMMUV3, "ril", "on" }, { TYPE_ARM_SMMUV3, "ssidsize", "0" },