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| author | Chen-Yu Tsai <wens@csie.org> | 2016-06-19 04:38:39 (GMT) |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2016-07-15 13:54:57 (GMT) |
| commit | 3eff681818e2c858175a7cc4e766f75e95827920 (patch) | |
| tree | e08efb181fef7b2ddcabb53599e9b863d61b56e4 /arch | |
| parent | 28f90357323bc65e7da01c458222b84dc42988bb (diff) | |
| download | u-boot-fsl-qoriq-3eff681818e2c858175a7cc4e766f75e95827920.tar.xz | |
ARM: Add CONFIG_ARMV7_SECURE_MAX_SIZE and check size of secure section
As the PSCI implementation grows, we might exceed the size of the secure
memory that holds the firmware.
Add a configurable CONFIG_ARMV7_SECURE_MAX_SIZE so platforms can define
how much secure memory is available. The linker then checks the size of
the whole secure section against this.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/u-boot.lds | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds index 002706a..5a65c27 100644 --- a/arch/arm/cpu/u-boot.lds +++ b/arch/arm/cpu/u-boot.lds @@ -86,6 +86,17 @@ SECTIONS . = ALIGN(CONSTANT(COMMONPAGESIZE)); KEEP(*(.__secure_stack_end)) + +#ifdef CONFIG_ARMV7_SECURE_MAX_SIZE + /* + * We are not checking (__secure_end - __secure_start) here, + * as these are the load addresses, and do not include the + * stack section. Instead, use the end of the stack section + * and the start of the text section. + */ + ASSERT((. - ADDR(.secure_text)) <= CONFIG_ARMV7_SECURE_MAX_SIZE, + "Error: secure section exceeds secure memory size"); +#endif } #ifndef __ARMV7_PSCI_STACK_IN_RAM |