michaelh/zephyr
1
0
Fork 0
Code Releases Activity

kernel: expose k_mem_partition_attr_t outside User mode

Browse source 
This commit exposes k_mem_partition_attr_t outside User Mode, so
we can use struct k_mem_partition for defining memory partitions
outside the scope of user space (for example, to describe thread
stack guards or no-cacheable MPU regions). A requirement is that
the Zephyr build supports Memory protection. To signify this, a
new hidden, all-architecture Kconfig symbol is defined (MPU). In
the wake of exposing k_mem_partition_attr_t, the commit exposes
the MPU architecture-specific access permission attribute macros
outside the User space context (for all ARCHs), so they can be
used in a more generic way.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit is contained in:
Ioannis Glaropoulos 2018-11-27 15:45:36 +01:00 • committed by Anas Nashif
commit 39bf24a9bd
10 changed files with 18 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/arch/arm/arch.h
View file

@ -252,7 +252,7 @@ extern "C" {
#define _ARCH_THREAD_STACK_BUFFER(sym) \
((char *)(sym) + MPU_GUARD_ALIGN_AND_SIZE)
#ifdef CONFIG_USERSPACE
#ifdef CONFIG_ARM_MPU
#ifdef CONFIG_CPU_HAS_ARM_MPU
#ifndef _ASMLANGUAGE
#include <arch/arm/cortex_m/mpu/arm_mpu.h>
@ -323,8 +323,8 @@ extern "C" {
" and greater than or equal to minimum MPU region size." \
"start address of the partition must align with minimum MPU \
region size.")
#endif /* CONFIG_CPU_HAS_ARM_MPU */
#endif /* CONFIG_USERSPACE */
#endif /* CONFIG_CPU_HAS_NXP_MPU */
#endif /* CONFIG_ARM_MPU */
#ifndef _ASMLANGUAGE
/* Typedef for the k_mem_partition attribute*/