@samitouri / QOSamiQemu / commits / 6f4a959952

hw/tpm: Add TPMIfClass::ppi_enabled field

Each TPM derived device has a @ppi_enabled field, itself exposed as a QOM property. External layers (like the ACPI subsystem) wanting to know whether a device implements PPI has to check for the QOM property available. This can be simplified by declaring a single field in the TPM interface. Here we add such field to TPMIfClass, before converting each TPM devices to use it in the following commits. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Message-Id: <20260317120241.16320-3-philmd@linaro.org>

Philippe Mathieu-Daudé committed Mar 17, 2026 at 12:31 UTC 6f4a9599521a9a2feded3e0eaa000546fc9d9e77

1 file changed +4

include/system/tpm.h

@@ -43,6 +43,7 @@ struct TPMIfClass {

43 enum TpmModel model;

44 void (*request_completed)(TPMIf *obj, int ret);

45 enum TPMVersion (*get_version)(TPMIf *obj);

46 + bool ppi_enabled;

47 };

49 #define TYPE_TPM_TIS_ISA "tpm-tis"

@@ -84,6 +85,9 @@ static inline bool tpm_ppi_enabled(TPMIf *ti)

85 if (!ti) {

86 return false;

87 }

88 + if (TPM_IF_GET_CLASS(ti)->ppi_enabled) {

89 + return true;

90 + }

91 return object_property_get_bool(OBJECT(ti), "ppi", &error_abort);

92 }