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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
hw/tpm/tpm_tis.c
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@ -32,6 +32,7 @@
#include "tpm_tis.h"
#include "qemu-common.h"
#include "qemu/main-loop.h"
#include "sysemu/tpm_backend.h"
#define DEBUG_TIS 0
@ -961,6 +962,16 @@ static int tpm_tis_do_startup_tpm(TPMState *s)
return tpm_backend_startup_tpm(s->be_driver);
}
/*
* Get the TPMVersion of the backend device being used
*/
TPMVersion tpm_tis_get_tpm_version(Object *obj)
{
TPMState *s = TPM(obj);
return tpm_backend_get_tpm_version(s->be_driver);
}
/*
* This function is called when the machine starts, resets or due to
* S3 resume.