Merge tpm 2023/04/20 v1

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Merge tag 'pull-tpm-2023-04-20-1' of https://github.com/stefanberger/qemu-tpm into staging

Merge tpm 2023/04/20 v1

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# gpg: Signature made Thu 20 Apr 2023 01:20:26 PM BST
# gpg:                using RSA key B818B9CADF9089C2D5CEC66B75AD65802A0B4211
# gpg: Good signature from "Stefan Berger <stefanb@linux.vnet.ibm.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B818 B9CA DF90 89C2 D5CE  C66B 75AD 6580 2A0B 4211

* tag 'pull-tpm-2023-04-20-1' of https://github.com/stefanberger/qemu-tpm:
  qtest: Add a test case for TPM TIS I2C connected to Aspeed I2C controller
  qtest: Move tpm_util_tis_transmit() into tpm-tis-utils.c and rename it
  qtest: Add functions for accessing devices on Aspeed I2C controller
  tests/avocado/aspeed: Add TPM TIS I2C test
  tpm: Add support for TPM device over I2C bus
  tpm: Extend common APIs to support TPM TIS I2C
  docs: Add support for TPM devices over I2C bus

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-04-21 20:02:51 +01:00
commit 45608654aa
11 changed files with 722 additions and 10 deletions

View file

@ -93,6 +93,7 @@
#define TPM_TIS_CAP_DATA_TRANSFER_64B (3 << 9)
#define TPM_TIS_CAP_DATA_TRANSFER_LEGACY (0 << 9)
#define TPM_TIS_CAP_BURST_COUNT_DYNAMIC (0 << 8)
#define TPM_TIS_CAP_BURST_COUNT_STATIC (1 << 8)
#define TPM_TIS_CAP_INTERRUPT_LOW_LEVEL (1 << 4) /* support is mandatory */
#define TPM_TIS_CAPABILITIES_SUPPORTED1_3 \
(TPM_TIS_CAP_INTERRUPT_LOW_LEVEL | \
@ -209,6 +210,46 @@ REG32(CRB_DATA_BUFFER, 0x80)
#define TPM_PPI_FUNC_ALLOWED_USR_NOT_REQ (4 << 0)
#define TPM_PPI_FUNC_MASK (7 << 0)
/* TPM TIS I2C registers */
#define TPM_I2C_REG_LOC_SEL 0x00
#define TPM_I2C_REG_ACCESS 0x04
#define TPM_I2C_REG_INT_ENABLE 0x08
#define TPM_I2C_REG_INT_CAPABILITY 0x14
#define TPM_I2C_REG_STS 0x18
#define TPM_I2C_REG_DATA_FIFO 0x24
#define TPM_I2C_REG_INTF_CAPABILITY 0x30
#define TPM_I2C_REG_I2C_DEV_ADDRESS 0x38
#define TPM_I2C_REG_DATA_CSUM_ENABLE 0x40
#define TPM_I2C_REG_DATA_CSUM_GET 0x44
#define TPM_I2C_REG_DID_VID 0x48
#define TPM_I2C_REG_RID 0x4c
#define TPM_I2C_REG_UNKNOWN 0xff
/* I2C specific interface capabilities */
#define TPM_I2C_CAP_INTERFACE_TYPE (0x2 << 0) /* FIFO interface */
#define TPM_I2C_CAP_INTERFACE_VER (0x0 << 4) /* TCG I2C intf 1.0 */
#define TPM_I2C_CAP_TPM2_FAMILY (0x1 << 7) /* TPM 2.0 family. */
#define TPM_I2C_CAP_DEV_ADDR_CHANGE (0x0 << 27) /* No dev addr chng */
#define TPM_I2C_CAP_BURST_COUNT_STATIC (0x1 << 29) /* Burst count static */
#define TPM_I2C_CAP_LOCALITY_CAP (0x1 << 25) /* 0-5 locality */
#define TPM_I2C_CAP_BUS_SPEED (3 << 21) /* std and fast mode */
/*
* TPM_I2C_STS masks for read/writing bits from/to TIS
* TPM_STS mask for read bits 31:26 must be zero
*/
#define TPM_I2C_STS_READ_MASK 0x00ffffdd
#define TPM_I2C_STS_WRITE_MASK 0x03000062
/* Checksum enabled. */
#define TPM_DATA_CSUM_ENABLED 0x1
/*
* TPM_I2C_INT_ENABLE mask. Linux kernel does not support
* interrupts hence setting it to 0.
*/
#define TPM_I2C_INT_ENABLE_MASK 0x0
void tpm_build_ppi_acpi(TPMIf *tpm, Aml *dev);
#endif /* CONFIG_TPM */

View file

@ -48,6 +48,7 @@ struct TPMIfClass {
#define TYPE_TPM_TIS_SYSBUS "tpm-tis-device"
#define TYPE_TPM_CRB "tpm-crb"
#define TYPE_TPM_SPAPR "tpm-spapr"
#define TYPE_TPM_TIS_I2C "tpm-tis-i2c"
#define TPM_IS_TIS_ISA(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_ISA)
@ -57,6 +58,8 @@ struct TPMIfClass {
object_dynamic_cast(OBJECT(chr), TYPE_TPM_CRB)
#define TPM_IS_SPAPR(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_SPAPR)
#define TPM_IS_TIS_I2C(chr) \
object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS_I2C)
/* returns NULL unless there is exactly one TPM device */
static inline TPMIf *tpm_find(void)