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tpm_spapr: Support TPM for ppc64 using CRQ based interface

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Implement support for TPM on ppc64 by implementing the vTPM CRQ interface
as a frontend. It can use the tpm_emulator driver backend with the external
swtpm.

The Linux vTPM driver for ppc64 works with this emulation.

This TPM emulator also handles the TPM 2 case.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200121152935.649898-4-stefanb@linux.ibm.com>
[dwg: Use device_class_set_props(), tweak Kconfig]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Stefan Berger 2020-01-21 10:29:32 -05:00 • committed by David Gibson
parent 864674fa29
commit 3676bc69b3
7 changed files with 423 additions and 4 deletions
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3
include/sysemu/tpm.h
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@ -45,11 +45,14 @@ typedef struct TPMIfClass {
#define TYPE_TPM_TIS "tpm-tis"
#define TYPE_TPM_CRB "tpm-crb"
#define TYPE_TPM_SPAPR "tpm-spapr"
#define TPM_IS_TIS(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS)
#define TPM_IS_CRB(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_CRB)
#define TPM_IS_SPAPR(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_SPAPR)
/* returns NULL unless there is exactly one TPM device */
static inline TPMIf *tpm_find(void)