On 3/17/26 8:02 AM, Philippe Mathieu-Daudé wrote:
Factor tpm_ppi_enabled() out before modifying it in a unique place.

Factor-out ...


Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
---
  include/system/tpm.h | 9 +++++++++
  hw/acpi/tpm.c        | 2 +-
  hw/i386/acpi-build.c | 2 +-
  3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/include/system/tpm.h b/include/system/tpm.h
index 1ee568b3b62..b90dd4e8cb0 100644
--- a/include/system/tpm.h
+++ b/include/system/tpm.h
@@ -13,6 +13,7 @@
  #define QEMU_TPM_H

  #include "qapi/qapi-types-tpm.h"
+#include "qapi/error.h"
  #include "qom/object.h"

  #ifdef CONFIG_TPM
@@ -78,6 +79,14 @@ static inline TPMVersion tpm_get_version(TPMIf *ti)
      return TPM_IF_GET_CLASS(ti)->get_version(ti);
  }

+static inline bool tpm_ppi_enabled(TPMIf *ti)
+{
+    if (!ti) {
+        return false;
+    }
+    return object_property_get_bool(OBJECT(ti), "ppi", &error_abort);
+}
+
  #else /* CONFIG_TPM */

  #define tpm_init()  (0)
diff --git a/hw/acpi/tpm.c b/hw/acpi/tpm.c
index cdc02275365..5fe95f2e3f1 100644
--- a/hw/acpi/tpm.c
+++ b/hw/acpi/tpm.c
@@ -25,7 +25,7 @@ void tpm_build_ppi_acpi(TPMIf *tpm, Aml *dev)
      Aml *method, *field, *ifctx, *ifctx2, *ifctx3, *func_mask,
          *not_implemented, *pak, *tpm2, *tpm3, *pprm, *pprq, *zero, *one;

-    if (!object_property_get_bool(OBJECT(tpm), "ppi", &error_abort)) {
+    if (!tpm_ppi_enabled(tpm)) {
          return;
      }

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index f622b91b76a..4f01e2c476e 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2218,7 +2218,7 @@ void acpi_setup(void)
                      tables.tcpalog->data, acpi_data_len(tables.tcpalog));

      tpm = tpm_find();
-    if (tpm && object_property_get_bool(OBJECT(tpm), "ppi", &error_abort)) {
+    if (tpm_ppi_enabled(tpm)) {
          tpm_config = (FwCfgTPMConfig) {
              .tpmppi_address = cpu_to_le32(TPM_PPI_ADDR_BASE),
              .tpm_version = tpm_get_version(tpm),

Reviewed-by: Stefan Berger <[email protected]>


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