diff options
| author | Sami Tolvanen <samitolvanen@google.com> | 2021-04-08 11:28:42 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2021-04-08 16:04:23 -0700 |
| commit | 67dfd72b3e8ab237aaa09cad5380b9e8c8cb65db (patch) | |
| tree | 92e5553011a2c282827567994b88d99a0b946d25 /arch/arm64/kvm | |
| parent | 800618f955a9647d8e03b9a367da974f7eecb120 (diff) | |
KVM: arm64: Disable CFI for nVHE
Disable CFI for the nVHE code to avoid address space confusion.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210408182843.1754385-18-samitolvanen@google.com
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/hyp/nvhe/Makefile | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile index a6707df4f6c0..fb24a0f022ad 100644 --- a/arch/arm64/kvm/hyp/nvhe/Makefile +++ b/arch/arm64/kvm/hyp/nvhe/Makefile @@ -75,9 +75,9 @@ quiet_cmd_hyprel = HYPREL $@ quiet_cmd_hypcopy = HYPCOPY $@ cmd_hypcopy = $(OBJCOPY) --prefix-symbols=__kvm_nvhe_ $< $@ -# Remove ftrace and Shadow Call Stack CFLAGS. -# This is equivalent to the 'notrace' and '__noscs' annotations. -KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE) $(CC_FLAGS_SCS), $(KBUILD_CFLAGS)) +# Remove ftrace, Shadow Call Stack, and CFI CFLAGS. +# This is equivalent to the 'notrace', '__noscs', and '__nocfi' annotations. +KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE) $(CC_FLAGS_SCS) $(CC_FLAGS_CFI), $(KBUILD_CFLAGS)) # KVM nVHE code is run at a different exception code with a different map, so # compiler instrumentation that inserts callbacks or checks into the code may |