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plat/arm: Restrict PIE support to FVP

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The patch SHA 55cf015c enabled PIE support when RESET_TO_BL31=1 for
all ARM platforms. But it seems n1sdp platform doesn't work with PIE
support yet. Hence restrict the ENABLE_PIE=1 to fvp platform.

Change-Id: If44e42528e4b0b57c69084503f346576fe0748bd
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
This commit is contained in:
Soby Mathew 2019-01-07 14:07:58 +00:00
parent a9f803b745
commit d4580d17eb
3 changed files with 19 additions and 13 deletions
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19
include/plat/arm/common/arm_def.h
View file

@ -405,16 +405,21 @@
#define BL31_LIMIT (ARM_AP_TZC_DRAM1_BASE + \
PLAT_ARM_MAX_BL31_SIZE)
#elif (RESET_TO_BL31)
/* Ensure Position Independent support (PIE) is enabled for this config.*/
# if !ENABLE_PIE
# error "BL31 must be a PIE if RESET_TO_BL31=1."
# endif
# if ENABLE_PIE
/*
* Since this is PIE, we can define BL31_BASE to 0x0 since this macro is solely
* used for building BL31 when RESET_TO_BL31=1.
* used for building BL31 and not used for loading BL31.
*/
#define BL31_BASE 0x0
#define BL31_LIMIT PLAT_ARM_MAX_BL31_SIZE
# define BL31_BASE 0x0
# define BL31_LIMIT PLAT_ARM_MAX_BL31_SIZE
# else
/* Put BL31_BASE in the middle of the Trusted SRAM.*/
# define BL31_BASE (ARM_TRUSTED_SRAM_BASE + \
(PLAT_ARM_TRUSTED_SRAM_SIZE >> 1))
# define BL31_LIMIT (ARM_BL_RAM_BASE + ARM_BL_RAM_SIZE)
# endif /* ENABLE_PIE */
#else
/* Put BL31 below BL2 in the Trusted SRAM.*/
#define BL31_BASE ((ARM_BL_RAM_BASE + ARM_BL_RAM_SIZE)\

8
plat/arm/board/fvp/platform.mk
View file

@ -201,9 +201,15 @@ ENABLE_AMU := 1
# Enable dynamic mitigation support by default
DYNAMIC_WORKAROUND_CVE_2018_3639 := 1
# Enable reclaiming of BL31 initialisation code for secondary cores stacks for FVP
ifneq (${RESET_TO_BL31},1)
# Enable reclaiming of BL31 initialisation code for secondary cores stacks for
# FVP. We cannot enable PIE for this case because the overlayed init section
# creates some dynamic relocations which cannot be handled by the fixup
# logic currently.
RECLAIM_INIT_CODE := 1
else
# Enable PIE support when RESET_TO_BL31=1
ENABLE_PIE := 1
endif
ifeq (${ENABLE_AMU},1)

5
plat/arm/common/arm_common.mk
View file

@ -133,11 +133,6 @@ ARM_CRYPTOCELL_INTEG := 0
$(eval $(call assert_boolean,ARM_CRYPTOCELL_INTEG))
$(eval $(call add_define,ARM_CRYPTOCELL_INTEG))
# Enable PIE support for RESET_TO_BL31 case
ifeq (${RESET_TO_BL31},1)
ENABLE_PIE := 1
endif
# CryptoCell integration relies on coherent buffers for passing data from
# the AP CPU to the CryptoCell
ifeq (${ARM_CRYPTOCELL_INTEG},1)