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TPM2 ACPI table support

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Add a TPM2 ACPI table if a TPM 2 is used in the backend.
Also add an SSDT for the TPM 2.

Rename tpm_find() to tpm_get_version() and have this function
return the version of the TPM found, TPMVersion_Unspec if
no TPM is found. Use the version number to build version
specific ACPI tables.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Stefan Berger 2015-05-26 16:51:07 -04:00 • committed by Michael S. Tsirkin
parent 56a3c24ffc
commit 5cb18b3d7b
10 changed files with 237 additions and 28 deletions
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11
include/sysemu/tpm.h
View file

@ -26,11 +26,18 @@ typedef enum TPMVersion {
TPM_VERSION_2_0 = 2,
} TPMVersion;
TPMVersion tpm_tis_get_tpm_version(Object *obj);
#define TYPE_TPM_TIS "tpm-tis"
static inline bool tpm_find(void)
static inline TPMVersion tpm_get_version(void)
{
return object_resolve_path_type("", TYPE_TPM_TIS, NULL);
Object *obj = object_resolve_path_type("", TYPE_TPM_TIS, NULL);
if (obj) {
return tpm_tis_get_tpm_version(obj);
}
return TPM_VERSION_UNSPEC;
}
#endif /* QEMU_TPM_H */