diff options
| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2018-03-13 16:50:28 +0000 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-03-19 16:14:23 -0400 |
| commit | d89a5aa6d086e4b3242dbdbe97183f5b25468299 (patch) | |
| tree | ef4b48ff184d3f30ae125ab48906262895c9e801 /lib/optee | |
| parent | 32ce6179fb99544fa9d7348e4641ccdf6c1e6067 (diff) | |
optee: Add CONFIG_OPTEE_TZDRAM_SIZE
OPTEE is currently linked to a specific area of memory called the TrustZone
DRAM. This patch adds a CONFIG entry for the default size of TrustZone DRAM
that a board-port can over-ride. The region that U-Boot sets aside for the
OPTEE run-time should be verified before attempting to hand off to the
OPTEE run-time. Each board-port should carefully ensure that the TZDRAM
size specified in the OPTEE build and the TZDRAM size specified in U-Boot
match-up.
Further patches will use TZDRAM size with other defines and variables to
carry out a degree of automated verification in U-Boot prior to trying to
boot an OPTEE image.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Cc: Harinarayan Bhatta <harinarayan@ti.com>
Cc: Andrew F. Davis <afd@ti.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Cc: Peng Fan <peng.fan@nxp.com>
Tested-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'lib/optee')
| -rw-r--r-- | lib/optee/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/optee/Kconfig b/lib/optee/Kconfig index 2e406fe107..41c0ab71b1 100644 --- a/lib/optee/Kconfig +++ b/lib/optee/Kconfig @@ -6,3 +6,11 @@ config OPTEE enable an OPTEE specific bootm command that will perform additional OPTEE specific checks before booting an OPTEE image created with mkimage. + +config OPTEE_TZDRAM_SIZE + hex "Amount of Trust-Zone RAM for the OPTEE image" + depends on OPTEE + default 0x3000000 + help + The size of pre-allocated Trust Zone DRAM to allocate for the OPTEE + runtime. |