diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/sysemu/tpm.h | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h index 7b407caf25..2fe0f1e120 100644 --- a/include/sysemu/tpm.h +++ b/include/sysemu/tpm.h @@ -19,7 +19,7 @@ int tpm_config_parse(QemuOptsList *opts_list, const char *optarg); int tpm_init(void); void tpm_cleanup(void); -typedef enum TPMVersion { +typedef enum TPMVersion { TPM_VERSION_UNSPEC = 0, TPM_VERSION_1_2 = 1, TPM_VERSION_2_0 = 2, @@ -44,20 +44,25 @@ typedef struct TPMIfClass { void (*request_completed)(TPMIf *obj); } TPMIfClass; -TPMVersion tpm_tis_get_tpm_version(Object *obj); - #define TYPE_TPM_TIS "tpm-tis" -static inline TPMVersion tpm_get_version(void) +/* returns NULL unless there is exactly one TPM device */ +static inline TPMIf *tpm_find(void) { -#ifdef CONFIG_TPM - Object *obj = object_resolve_path_type("", TYPE_TPM_TIS, NULL); + Object *obj = object_resolve_path_type("", TYPE_TPM_IF, NULL); + + return TPM_IF(obj); +} - if (obj) { - return tpm_tis_get_tpm_version(obj); +TPMVersion tpm_tis_get_tpm_version(Object *obj); + +static inline TPMVersion tpm_get_version(TPMIf *ti) +{ + if (!ti) { + return TPM_VERSION_UNSPEC; } -#endif - return TPM_VERSION_UNSPEC; + + return tpm_tis_get_tpm_version(OBJECT(ti)); } #endif /* QEMU_TPM_H */ |