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503eea4519
u-boot-brain/arch/arm/lib
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Patrick Delaunay 503eea4519 arm: cp15: update DACR value to activate access control 
Update the initial value of Domain Access Control Register (DACR)
and set by default the access permission to client (DACR_Dn_CLIENT = 1U)
for each of the 16 domains and no more to all-supervisor
(DACR_Dn_MANAGER = 3U).

This patch allows to activate the domain checking in MMU against the
permission bits in the translation tables and avoids prefetching issue
on ARMv7 [1].

Today it was already done for OMAP2 architecture
./arch/arm/mach-omap2/omap-cache.c::arm_init_domains
introduced by commit de63ac278c ("ARM: mmu: Set domain permissions
to client access") which fixes lot of speculative prefetch aborts seen
on OMAP5 secure devices.

[1] https://developer.arm.com/documentation/ddi0406/b/System-Level-Architecture/Virtual-Memory-System-Architecture--VMSA-/Memory-access-control/The-Execute-Never--XN--attribute-and-instruction-prefetching

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reported-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-03-02 15:53:37 -05:00
..
ashldi3.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
ashrdi3.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
asm-offsets.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
bdinfo.c Merge branch '2021-02-02-drop-asm_global_data-when-unused' 2021-02-15 10:16:45 -05:00
bootm-fdt.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
bootm.c Merge branch '2021-02-02-drop-asm_global_data-when-unused' 2021-02-15 10:16:45 -05:00
cache-cp15.c arm: cp15: update DACR value to activate access control 2021-03-02 15:53:37 -05:00
cache-pl310.c ARM: cache: Fix incorrect bitwise operation 2019-02-28 14:21:46 -05:00
cache.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
ccn504.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
cmd_boot.c command: Remove the cmd_tbl_t typedef 2020-05-18 18:36:55 -04:00
crt0_64.S arm64: Add support for larger PIE U-Boot 2020-09-22 12:47:28 +02:00
crt0_aarch64_efi.S efi_loader: add Linux magic to aarch64 crt0 2021-01-29 20:22:40 +01:00
crt0_arm_efi.S efi_loader: use predefined constants in crt0_*_efi.S 2019-07-16 22:17:14 +00:00
crt0.S arm: Add SPL build check to SPL early bss clear 2020-08-04 23:30:02 -04:00
debug.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
div64.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
div0.c common: Move hang() to the same header as panic() 2020-01-17 17:53:40 -05:00
eabi_compat.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
elf_aarch64_efi.lds SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
elf_arm_efi.lds SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
gic_64.S arm64: gic: Do gicv3 secure initialization based on EL level 2018-10-16 14:58:46 +02:00
gic-v3-its.c dm: Rename DM_GET_DRIVER() to DM_DRIVER_GET() 2021-01-05 12:26:35 -07:00
image.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
interrupts_64.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
interrupts_m.c reset: Remove addr parameter from reset_cpu() 2021-03-02 14:03:02 -05:00
interrupts.c reset: Remove addr parameter from reset_cpu() 2021-03-02 14:03:02 -05:00
lib1funcs.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
lshrdi3.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
Makefile bdinfo: arm: Move ARM-specific info into its own file 2020-06-25 13:24:12 -04:00
memcpy.S arm: Make arch specific memcpy thumb-safe. 2018-11-16 16:51:57 -05:00
memset.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
muldi3.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
psci-dt.c treewide: use CONFIG_IS_ENABLED() for ARMV8_SEC_FIRMWARE_SUPPORT 2020-12-04 16:09:05 -05:00
reloc_aarch64_efi.c arm: Remove unused _relocate arguments 2018-07-19 16:31:36 -04:00
reloc_arm_efi.c arm: Remove unused _relocate arguments 2018-07-19 16:31:36 -04:00
relocate_64.S common: Move relocate_code() to init.h 2020-01-17 13:26:49 -05:00
relocate.S arm: armv7m: clean up armv7m unified code compilation 2018-09-10 21:19:33 -04:00
reset.c reset: Remove addr parameter from reset_cpu() 2021-03-02 14:03:02 -05:00
sections.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
semihosting.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
setjmp_aarch64.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
setjmp.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
spl.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
stack.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
uldivmod.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
vectors_m.S arm: armv7m: clean up armv7m unified code compilation 2018-09-10 21:19:33 -04:00
vectors.S arm: remove ARCH_ROCKCHIP macro in common code 2019-05-08 17:34:12 +08:00
zimage.c common: Drop image.h from common header 2020-05-18 17:33:33 -04:00