diff options
Diffstat (limited to 'include/hw/acpi/tpm.h')
| -rw-r--r-- | include/hw/acpi/tpm.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/hw/acpi/tpm.h b/include/hw/acpi/tpm.h index 3580ffd50c..579c45f5ba 100644 --- a/include/hw/acpi/tpm.h +++ b/include/hw/acpi/tpm.h @@ -18,6 +18,10 @@ #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 @@ -89,6 +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 | \ @@ -188,4 +193,65 @@ REG32(CRB_DATA_BUFFER, 0x80) #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 */ |