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| author | Justin Chadwell <justin.chadwell@arm.com> | 2019-07-18 14:25:33 +0100 |
|---|---|---|
| committer | Justin Chadwell <justin.chadwell@arm.com> | 2019-09-09 16:23:33 +0100 |
| commit | 9dd94382bd23db0fa201b254dc3f1bebdfd627c2 (patch) | |
| tree | e7c745457b0027bc4b3a4906d599605a0ccdeac4 /Makefile | |
| parent | 5dbdf8e4eac1d5999f07976f9f430894b0784907 (diff) | |
Enable MTE support in both secure and non-secure worlds
This patch adds support for the new Memory Tagging Extension arriving in
ARMv8.5. MTE support is now enabled by default on systems that support
at EL0. To enable it at ELx for both the non-secure and the secure
world, the compiler flag CTX_INCLUDE_MTE_REGS includes register saving
and restoring when necessary in order to prevent register leakage
between the worlds.
Change-Id: I2d4ea993d6b11654ea0d4757d00ca20d23acf36c
Signed-off-by: Justin Chadwell <justin.chadwell@arm.com>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -510,6 +510,14 @@ ifeq ($(ENABLE_BTI),1) $(info Branch Protection is an experimental feature) endif +ifeq ($(CTX_INCLUDE_MTE_REGS),1) + ifneq (${ARCH},aarch64) + $(error CTX_INCLUDE_MTE_REGS requires AArch64) + else + $(info CTX_INCLUDE_MTE_REGS is an experimental feature) + endif +endif + ################################################################################ # Process platform overrideable behaviour ################################################################################ @@ -631,6 +639,7 @@ $(eval $(call assert_boolean,CREATE_KEYS)) $(eval $(call assert_boolean,CTX_INCLUDE_AARCH32_REGS)) $(eval $(call assert_boolean,CTX_INCLUDE_FPREGS)) $(eval $(call assert_boolean,CTX_INCLUDE_PAUTH_REGS)) +$(eval $(call assert_boolean,CTX_INCLUDE_MTE_REGS)) $(eval $(call assert_boolean,DEBUG)) $(eval $(call assert_boolean,DYN_DISABLE_AUTH)) $(eval $(call assert_boolean,EL3_EXCEPTION_HANDLING)) @@ -686,6 +695,7 @@ $(eval $(call add_define,CTX_INCLUDE_AARCH32_REGS)) $(eval $(call add_define,CTX_INCLUDE_FPREGS)) $(eval $(call add_define,CTX_INCLUDE_PAUTH_REGS)) $(eval $(call add_define,EL3_EXCEPTION_HANDLING)) +$(eval $(call add_define,CTX_INCLUDE_MTE_REGS)) $(eval $(call add_define,ENABLE_AMU)) $(eval $(call add_define,ENABLE_ASSERTIONS)) $(eval $(call add_define,ENABLE_BTI)) |