TPM2 ACPI table support

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>

1 files changed, 1 insertions, 15 deletions

diff --git a/hw/i386/ssdt-tpm.dsl b/hw/i386/ssdt-tpm.dsl
index 75d96910bf..d81478c1b5 100644
--- a/hw/i386/ssdt-tpm.dsl
+++ b/hw/i386/ssdt-tpm.dsl
@@ -25,19 +25,5 @@ DefinitionBlock (
     0x1                 // OEM Revision
     )
 {
-    Scope(\_SB) {
-        /* TPM with emulated TPM TIS interface */
-        Device (TPM) {
-            Name (_HID, EisaID ("PNP0C31"))
-            Name (_CRS, ResourceTemplate ()
-            {
-                Memory32Fixed (ReadWrite, TPM_TIS_ADDR_BASE, TPM_TIS_ADDR_SIZE)
-                // older Linux tpm_tis drivers do not work with IRQ
-                //IRQNoFlags () {TPM_TIS_IRQ}
-            })
-            Method (_STA, 0, NotSerialized) {
-                Return (0x0F)
-            }
-        }
-    }
+#include "ssdt-tpm-common.dsl"
 }