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authorRichard Henderson <richard.henderson@linaro.org>2023-04-21 20:02:51 +0100
committerRichard Henderson <richard.henderson@linaro.org>2023-04-21 20:02:51 +0100
commit45608654aa63ca2b311d6cb761e1522f2128e00e (patch)
tree365a35df65cfc24400576ce0e2cb6a7a1718011c /include/hw/acpi/tpm.h
parent1093893f07debd06a4f2aaf677b6e90997c9245f (diff)
parent9d81aa3c0fe7480d722517f69e1bcb4aeaaf859c (diff)
downloadfocaccia-qemu-45608654aa63ca2b311d6cb761e1522f2128e00e.tar.gz
focaccia-qemu-45608654aa63ca2b311d6cb761e1522f2128e00e.zip
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>
Diffstat (limited to 'include/hw/acpi/tpm.h')
-rw-r--r--include/hw/acpi/tpm.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/include/hw/acpi/tpm.h b/include/hw/acpi/tpm.h
index 559ba6906c..579c45f5ba 100644
--- a/include/hw/acpi/tpm.h
+++ b/include/hw/acpi/tpm.h
@@ -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 */