| /* |
| * tpm.h - TPM ACPI definitions |
| * |
| * Copyright (C) 2014 IBM Corporation |
| * |
| * Authors: |
| * Stefan Berger <stefanb@us.ibm.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| * See the COPYING file in the top-level directory. |
| * |
| * Implementation of the TIS interface according to specs found at |
| * http://www.trustedcomputinggroup.org |
| * |
| */ |
| #ifndef HW_ACPI_TPM_H |
| #define HW_ACPI_TPM_H |
| |
| #include "qemu/units.h" |
| #include "hw/registerfields.h" |
| #include "hw/acpi/aml-build.h" |
| #include "sysemu/tpm.h" |
| |
| #ifdef CONFIG_TPM |
| |
| #define TPM_TIS_ADDR_BASE 0xFED40000 |
| #define TPM_TIS_ADDR_SIZE 0x5000 |
| |
| #define TPM_TIS_IRQ 5 |
| |
| #define TPM_TIS_NUM_LOCALITIES 5 /* per spec */ |
| #define TPM_TIS_LOCALITY_SHIFT 12 |
| |
| /* tis registers */ |
| #define TPM_TIS_REG_ACCESS 0x00 |
| #define TPM_TIS_REG_INT_ENABLE 0x08 |
| #define TPM_TIS_REG_INT_VECTOR 0x0c |
| #define TPM_TIS_REG_INT_STATUS 0x10 |
| #define TPM_TIS_REG_INTF_CAPABILITY 0x14 |
| #define TPM_TIS_REG_STS 0x18 |
| #define TPM_TIS_REG_DATA_FIFO 0x24 |
| #define TPM_TIS_REG_INTERFACE_ID 0x30 |
| #define TPM_TIS_REG_DATA_XFIFO 0x80 |
| #define TPM_TIS_REG_DATA_XFIFO_END 0xbc |
| #define TPM_TIS_REG_DID_VID 0xf00 |
| #define TPM_TIS_REG_RID 0xf04 |
| |
| /* vendor-specific registers */ |
| #define TPM_TIS_REG_DEBUG 0xf90 |
| |
| #define TPM_TIS_STS_TPM_FAMILY_MASK (0x3 << 26)/* TPM 2.0 */ |
| #define TPM_TIS_STS_TPM_FAMILY1_2 (0 << 26) /* TPM 2.0 */ |
| #define TPM_TIS_STS_TPM_FAMILY2_0 (1 << 26) /* TPM 2.0 */ |
| #define TPM_TIS_STS_RESET_ESTABLISHMENT_BIT (1 << 25) /* TPM 2.0 */ |
| #define TPM_TIS_STS_COMMAND_CANCEL (1 << 24) /* TPM 2.0 */ |
| |
| #define TPM_TIS_STS_VALID (1 << 7) |
| #define TPM_TIS_STS_COMMAND_READY (1 << 6) |
| #define TPM_TIS_STS_TPM_GO (1 << 5) |
| #define TPM_TIS_STS_DATA_AVAILABLE (1 << 4) |
| #define TPM_TIS_STS_EXPECT (1 << 3) |
| #define TPM_TIS_STS_SELFTEST_DONE (1 << 2) |
| #define TPM_TIS_STS_RESPONSE_RETRY (1 << 1) |
| |
| #define TPM_TIS_BURST_COUNT_SHIFT 8 |
| #define TPM_TIS_BURST_COUNT(X) \ |
| ((X) << TPM_TIS_BURST_COUNT_SHIFT) |
| |
| #define TPM_TIS_ACCESS_TPM_REG_VALID_STS (1 << 7) |
| #define TPM_TIS_ACCESS_ACTIVE_LOCALITY (1 << 5) |
| #define TPM_TIS_ACCESS_BEEN_SEIZED (1 << 4) |
| #define TPM_TIS_ACCESS_SEIZE (1 << 3) |
| #define TPM_TIS_ACCESS_PENDING_REQUEST (1 << 2) |
| #define TPM_TIS_ACCESS_REQUEST_USE (1 << 1) |
| #define TPM_TIS_ACCESS_TPM_ESTABLISHMENT (1 << 0) |
| |
| #define TPM_TIS_INT_ENABLED (1 << 31) |
| #define TPM_TIS_INT_DATA_AVAILABLE (1 << 0) |
| #define TPM_TIS_INT_STS_VALID (1 << 1) |
| #define TPM_TIS_INT_LOCALITY_CHANGED (1 << 2) |
| #define TPM_TIS_INT_COMMAND_READY (1 << 7) |
| |
| #define TPM_TIS_INT_POLARITY_MASK (3 << 3) |
| #define TPM_TIS_INT_POLARITY_LOW_LEVEL (1 << 3) |
| |
| #define TPM_TIS_INTERRUPTS_SUPPORTED (TPM_TIS_INT_LOCALITY_CHANGED | \ |
| TPM_TIS_INT_DATA_AVAILABLE | \ |
| TPM_TIS_INT_STS_VALID | \ |
| TPM_TIS_INT_COMMAND_READY) |
| |
| #define TPM_TIS_CAP_INTERFACE_VERSION1_3 (2 << 28) |
| #define TPM_TIS_CAP_INTERFACE_VERSION1_3_FOR_TPM2_0 (3 << 28) |
| #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 | \ |
| TPM_TIS_CAP_BURST_COUNT_DYNAMIC | \ |
| TPM_TIS_CAP_DATA_TRANSFER_64B | \ |
| TPM_TIS_CAP_INTERFACE_VERSION1_3 | \ |
| TPM_TIS_INTERRUPTS_SUPPORTED) |
| |
| #define TPM_TIS_CAPABILITIES_SUPPORTED2_0 \ |
| (TPM_TIS_CAP_INTERRUPT_LOW_LEVEL | \ |
| TPM_TIS_CAP_BURST_COUNT_DYNAMIC | \ |
| TPM_TIS_CAP_DATA_TRANSFER_64B | \ |
| TPM_TIS_CAP_INTERFACE_VERSION1_3_FOR_TPM2_0 | \ |
| TPM_TIS_INTERRUPTS_SUPPORTED) |
| |
| #define TPM_TIS_IFACE_ID_INTERFACE_TIS1_3 (0xf) /* TPM 2.0 */ |
| #define TPM_TIS_IFACE_ID_INTERFACE_FIFO (0x0) /* TPM 2.0 */ |
| #define TPM_TIS_IFACE_ID_INTERFACE_VER_FIFO (0 << 4) /* TPM 2.0 */ |
| #define TPM_TIS_IFACE_ID_CAP_5_LOCALITIES (1 << 8) /* TPM 2.0 */ |
| #define TPM_TIS_IFACE_ID_CAP_TIS_SUPPORTED (1 << 13) /* TPM 2.0 */ |
| #define TPM_TIS_IFACE_ID_INT_SEL_LOCK (1 << 19) /* TPM 2.0 */ |
| |
| #define TPM_TIS_IFACE_ID_SUPPORTED_FLAGS1_3 \ |
| (TPM_TIS_IFACE_ID_INTERFACE_TIS1_3 | \ |
| (~0u << 4)/* all of it is don't care */) |
| |
| /* if backend was a TPM 2.0: */ |
| #define TPM_TIS_IFACE_ID_SUPPORTED_FLAGS2_0 \ |
| (TPM_TIS_IFACE_ID_INTERFACE_FIFO | \ |
| TPM_TIS_IFACE_ID_INTERFACE_VER_FIFO | \ |
| TPM_TIS_IFACE_ID_CAP_5_LOCALITIES | \ |
| TPM_TIS_IFACE_ID_CAP_TIS_SUPPORTED) |
| |
| #define TPM_TIS_TPM_DID 0x0001 |
| #define TPM_TIS_TPM_VID PCI_VENDOR_ID_IBM |
| #define TPM_TIS_TPM_RID 0x0001 |
| |
| #define TPM_TIS_NO_DATA_BYTE 0xff |
| |
| |
| REG32(CRB_LOC_STATE, 0x00) |
| FIELD(CRB_LOC_STATE, tpmEstablished, 0, 1) |
| FIELD(CRB_LOC_STATE, locAssigned, 1, 1) |
| FIELD(CRB_LOC_STATE, activeLocality, 2, 3) |
| FIELD(CRB_LOC_STATE, reserved, 5, 2) |
| FIELD(CRB_LOC_STATE, tpmRegValidSts, 7, 1) |
| REG32(CRB_LOC_CTRL, 0x08) |
| REG32(CRB_LOC_STS, 0x0C) |
| FIELD(CRB_LOC_STS, Granted, 0, 1) |
| FIELD(CRB_LOC_STS, beenSeized, 1, 1) |
| REG32(CRB_INTF_ID, 0x30) |
| FIELD(CRB_INTF_ID, InterfaceType, 0, 4) |
| FIELD(CRB_INTF_ID, InterfaceVersion, 4, 4) |
| FIELD(CRB_INTF_ID, CapLocality, 8, 1) |
| FIELD(CRB_INTF_ID, CapCRBIdleBypass, 9, 1) |
| FIELD(CRB_INTF_ID, Reserved1, 10, 1) |
| FIELD(CRB_INTF_ID, CapDataXferSizeSupport, 11, 2) |
| FIELD(CRB_INTF_ID, CapFIFO, 13, 1) |
| FIELD(CRB_INTF_ID, CapCRB, 14, 1) |
| FIELD(CRB_INTF_ID, CapIFRes, 15, 2) |
| FIELD(CRB_INTF_ID, InterfaceSelector, 17, 2) |
| FIELD(CRB_INTF_ID, IntfSelLock, 19, 1) |
| FIELD(CRB_INTF_ID, Reserved2, 20, 4) |
| FIELD(CRB_INTF_ID, RID, 24, 8) |
| REG32(CRB_INTF_ID2, 0x34) |
| FIELD(CRB_INTF_ID2, VID, 0, 16) |
| FIELD(CRB_INTF_ID2, DID, 16, 16) |
| REG32(CRB_CTRL_EXT, 0x38) |
| REG32(CRB_CTRL_REQ, 0x40) |
| REG32(CRB_CTRL_STS, 0x44) |
| FIELD(CRB_CTRL_STS, tpmSts, 0, 1) |
| FIELD(CRB_CTRL_STS, tpmIdle, 1, 1) |
| REG32(CRB_CTRL_CANCEL, 0x48) |
| REG32(CRB_CTRL_START, 0x4C) |
| REG32(CRB_INT_ENABLED, 0x50) |
| REG32(CRB_INT_STS, 0x54) |
| REG32(CRB_CTRL_CMD_SIZE, 0x58) |
| REG32(CRB_CTRL_CMD_LADDR, 0x5C) |
| REG32(CRB_CTRL_CMD_HADDR, 0x60) |
| REG32(CRB_CTRL_RSP_SIZE, 0x64) |
| REG32(CRB_CTRL_RSP_ADDR, 0x68) |
| REG32(CRB_DATA_BUFFER, 0x80) |
| |
| #define TPM_CRB_ADDR_BASE 0xFED40000 |
| #define TPM_CRB_ADDR_SIZE 0x1000 |
| #define TPM_CRB_ADDR_CTRL (TPM_CRB_ADDR_BASE + A_CRB_CTRL_REQ) |
| #define TPM_CRB_R_MAX R_CRB_DATA_BUFFER |
| |
| #define TPM_LOG_AREA_MINIMUM_SIZE (64 * KiB) |
| |
| #define TPM_TCPA_ACPI_CLASS_CLIENT 0 |
| #define TPM_TCPA_ACPI_CLASS_SERVER 1 |
| |
| #define TPM2_ACPI_CLASS_CLIENT 0 |
| #define TPM2_ACPI_CLASS_SERVER 1 |
| |
| #define TPM2_START_METHOD_MMIO 6 |
| #define TPM2_START_METHOD_CRB 7 |
| |
| /* |
| * Physical Presence Interface |
| */ |
| #define TPM_PPI_ADDR_SIZE 0x400 |
| #define TPM_PPI_ADDR_BASE 0xFED45000 |
| |
| #define TPM_PPI_VERSION_NONE 0 |
| #define TPM_PPI_VERSION_1_30 1 |
| |
| /* whether function is blocked by BIOS settings; bits 0, 1, 2 */ |
| #define TPM_PPI_FUNC_NOT_IMPLEMENTED (0 << 0) |
| #define TPM_PPI_FUNC_BIOS_ONLY (1 << 0) |
| #define TPM_PPI_FUNC_BLOCKED (2 << 0) |
| #define TPM_PPI_FUNC_ALLOWED_USR_REQ (3 << 0) |
| #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 */ |
| |
| #endif /* HW_ACPI_TPM_H */ |
