56a3c24ffc
In the TPM passthrough backend driver, modify the probing code so that we can check whether a TPM 1.2 or TPM 2 is being used and adapt the behavior of the TPM TIS accordingly. Move the code that tested for a TPM 1.2 into tpm_utils.c and extend it with test for probing for TPM 2. Have the function return the version of TPM found. 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>
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
/*
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* TPM configuration
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*
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* Copyright (C) 2011-2013 IBM Corporation
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*
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* Authors:
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* Stefan Berger <stefanb@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef TPM_TPM_INT_H
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#define TPM_TPM_INT_H
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#include "exec/memory.h"
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#include "tpm_tis.h"
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/* overall state of the TPM interface */
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struct TPMState {
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ISADevice busdev;
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MemoryRegion mmio;
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union {
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TPMTISEmuState tis;
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} s;
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uint8_t locty_number;
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TPMLocality *locty_data;
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char *backend;
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TPMBackend *be_driver;
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TPMVersion be_tpm_version;
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};
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#define TPM(obj) OBJECT_CHECK(TPMState, (obj), TYPE_TPM_TIS)
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#define TPM_STANDARD_CMDLINE_OPTS \
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{ \
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.name = "type", \
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.type = QEMU_OPT_STRING, \
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.help = "Type of TPM backend", \
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}
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struct tpm_req_hdr {
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uint16_t tag;
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uint32_t len;
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uint32_t ordinal;
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} QEMU_PACKED;
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struct tpm_resp_hdr {
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uint16_t tag;
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uint32_t len;
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uint32_t errcode;
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} QEMU_PACKED;
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#define TPM_TAG_RQU_COMMAND 0xc1
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#define TPM_TAG_RQU_AUTH1_COMMAND 0xc2
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#define TPM_TAG_RQU_AUTH2_COMMAND 0xc3
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#define TPM_TAG_RSP_COMMAND 0xc4
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#define TPM_TAG_RSP_AUTH1_COMMAND 0xc5
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#define TPM_TAG_RSP_AUTH2_COMMAND 0xc6
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#define TPM_FAIL 9
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#define TPM_ORD_ContinueSelfTest 0x53
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#define TPM_ORD_GetTicks 0xf1
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/* TPM2 defines */
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#define TPM2_ST_NO_SESSIONS 0x8001
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#define TPM2_CC_ReadClock 0x00000181
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#endif /* TPM_TPM_INT_H */
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