1# Default configuration values for OP-TEE core (all platforms). 2# 3# Platform-specific overrides are in core/arch/arm32/plat-*/conf.mk. 4# Some subsystem-specific defaults are not here but rather in */sub.mk. 5# 6# Configuration values may be assigned from multiple sources. 7# From higher to lower priority: 8# 9# 1. Make arguments ('make CFG_FOO=bar...') 10# 2. The file specified by $(CFG_OPTEE_CONFIG) (if defined) 11# 3. The environment ('CFG_FOO=bar make...') 12# 4. The platform-specific configuration file: core/arch/arm32/plat-*/conf.mk 13# 5. This file 14# 6. Subsystem-specific makefiles (*/sub.mk) 15# 16# Actual values used during the build are output to $(out-dir)/conf.mk 17# (CFG_* variables only). 18 19# Cross-compiler prefix and suffix 20CROSS_COMPILE ?= arm-linux-gnueabihf- 21CROSS_COMPILE32 ?= $(CROSS_COMPILE) 22CROSS_COMPILE64 ?= aarch64-linux-gnu- 23COMPILER ?= gcc 24 25# Compiler warning level. 26# Supported values: undefined, 1, 2 and 3. 3 gives more warnings. 27WARNS ?= 3 28 29# Define NOWERROR=1 so that warnings are not treated as errors 30# NOWERROR=1 31 32# Define DEBUG=1 to compile with -g option 33# DEBUG=1 34 35# If 1, debug mode of the tee firmware (CPU restart, Core Status) 36CFG_TEE_CORE_DEBUG ?= 0 37 38# Max level of the tee core traces. 0 means disable, 4 is max. 39# Supported values: 0 (no traces) to 4 (all traces) 40# If CFG_TEE_DRV_DEBUGFS is set, the level of traces to print can be 41# dynamically changes via debugfs in the range 1 => CFG_TEE_CORE_LOG_LEVEL 42CFG_TEE_CORE_LOG_LEVEL ?= 1 43 44# TA and TEECore log level 45# Supported values: 0 (no traces) to 4 (all traces) 46# If CFG_TEE_DRV_DEBUGFS is set, the level of traces to print can be 47# dynamically changes via debugfs in the range 1 => CFG_TEE_TA_LOG_LEVEL 48CFG_TEE_TA_LOG_LEVEL ?= 1 49 50# TA enablement 51# When defined to "y", TA traces are output according to 52# CFG_TEE_TA_LOG_LEVEL. Otherwise, they are not output at all 53CFG_TEE_CORE_TA_TRACE ?= y 54 55# Define TEE_Panic as a macro to help debugging panics caused by calls to 56# TEE_Panic. This flag can have a different value when later compiling the 57# TA 58CFG_TEE_PANIC_DEBUG ?= y 59 60# If 1, enable debug features in TA memory allocation. 61# Debug features include check of buffer overflow, statistics, mark/check heap 62# feature. 63CFG_TEE_CORE_USER_MEM_DEBUG ?= 1 64 65# If y, enable memory leak detection feature in bget memory allocator. 66CFG_TEE_CORE_MALLOC_DEBUG ?= n 67CFG_TEE_TA_MALLOC_DEBUG ?= n 68 69# PRNG configuration 70# If CFG_WITH_SOFTWARE_PRNG is enabled, crypto provider provided 71# software PRNG implementation is used. 72# Otherwise, you need to implement hw_get_random_byte() for your platform 73CFG_WITH_SOFTWARE_PRNG ?= y 74 75# Number of threads 76CFG_NUM_THREADS ?= 2 77 78# API implementation version 79CFG_TEE_API_VERSION ?= GPD-1.1-dev 80 81# Implementation description (implementation-dependent) 82CFG_TEE_IMPL_DESCR ?= OPTEE 83 84# Trusted OS implementation version 85TEE_IMPL_VERSION ?= $(shell git describe --always --dirty=-dev 2>/dev/null || echo Unknown) 86 87# Trusted OS implementation manufacturer name 88CFG_TEE_MANUFACTURER ?= LINARO 89 90# Trusted firmware version 91CFG_TEE_FW_IMPL_VERSION ?= FW_IMPL_UNDEF 92 93# Trusted OS implementation manufacturer name 94CFG_TEE_FW_MANUFACTURER ?= FW_MAN_UNDEF 95 96# Encrypted File System Support 97# Applies to both the default and the RPMB filesystems 98CFG_ENC_FS ?= y 99 100# File System Block Cache Support 101# Does not apply to the RPMB FS 102CFG_FS_BLOCK_CACHE ?= n 103 104# RPMB file system support 105# When enabled, replaces the default (REE-based) FS 106CFG_RPMB_FS ?= n 107 108# Device identifier used when CFG_RPMB_FS = y. 109# The exact meaning of this value is platform-dependent. On Linux, the 110# tee-supplicant process will open /dev/mmcblk<id>rpmb 111CFG_RPMB_FS_DEV_ID ?= 0 112 113# Embed public part of this key in OP-TEE OS 114TA_SIGN_KEY ?= keys/default_ta.pem 115 116# Include lib/libutils/isoc in the build? Most platforms need this, but some 117# may not because they obtain the isoc functions from elsewhere 118CFG_LIBUTILS_WITH_ISOC ?= y 119 120# Enables floating point support for user TAs 121# ARM32: EABI defines both a soft-float ABI and a hard-float ABI, 122# hard-float is basically a super set of soft-float. Hard-float 123# requires all the support routines provided for soft-float, but the 124# compiler may choose to optimize to not use some of them and use 125# the floating-point registers instead. 126# ARM64: EABI doesn't define a soft-float ABI, everything is hard-float (or 127# nothing with ` -mgeneral-regs-only`) 128# With CFG_TA_FLOAT_SUPPORT enabled TA code is free use floating point types 129CFG_TA_FLOAT_SUPPORT ?= y 130 131# Enable stack unwinding for aborts from kernel mode if CFG_TEE_CORE_DEBUG 132# is enabled 133ifeq ($(CFG_TEE_CORE_DEBUG),1) 134CFG_CORE_UNWIND ?= y 135endif 136