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| author | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2019-02-26 11:41:03 +0000 |
|---|---|---|
| committer | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2019-02-27 11:58:10 +0000 |
| commit | 67b6ff9f8ccd84cea1627d738f3e2d4eb0a789e1 (patch) | |
| tree | ce226614498b06f2c9bb078ccb3cc1b189adf1b2 /bl32/tsp/tsp_main.c | |
| parent | 88cfd9a604cee29cc6536a43cd136b7eef0b78b9 (diff) | |
| download | platform_external_arm-trusted-firmware-67b6ff9f8ccd84cea1627d738f3e2d4eb0a789e1.tar.gz platform_external_arm-trusted-firmware-67b6ff9f8ccd84cea1627d738f3e2d4eb0a789e1.tar.bz2 platform_external_arm-trusted-firmware-67b6ff9f8ccd84cea1627d738f3e2d4eb0a789e1.zip | |
TSP: Enable pointer authentication support
The size increase after enabling options related to ARMv8.3-PAuth is:
+----------------------------+-------+-------+-------+--------+
| | text | bss | data | rodata |
+----------------------------+-------+-------+-------+--------+
| CTX_INCLUDE_PAUTH_REGS = 1 | +40 | +0 | +0 | +0 |
| | 0.4% | | | |
+----------------------------+-------+-------+-------+--------+
| ENABLE_PAUTH = 1 | +352 | +0 | +16 | +0 |
| | 3.1% | | 15.8% | |
+----------------------------+-------+-------+-------+--------+
Results calculated with the following build configuration:
make PLAT=fvp SPD=tspd DEBUG=1 \
SDEI_SUPPORT=1 \
EL3_EXCEPTION_HANDLING=1 \
TSP_NS_INTR_ASYNC_PREEMPT=1 \
CTX_INCLUDE_PAUTH_REGS=1 \
ENABLE_PAUTH=1
Change-Id: I6cc1fe0b2345c547dcef66f98758c4eb55fe5ee4
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Diffstat (limited to 'bl32/tsp/tsp_main.c')
| -rw-r--r-- | bl32/tsp/tsp_main.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/bl32/tsp/tsp_main.c b/bl32/tsp/tsp_main.c index 407ed4788..30bf6ffc8 100644 --- a/bl32/tsp/tsp_main.c +++ b/bl32/tsp/tsp_main.c @@ -72,6 +72,26 @@ static tsp_args_t *set_smc_args(uint64_t arg0, } /******************************************************************************* + * Setup function for TSP. + ******************************************************************************/ +void tsp_setup(void) +{ + /* Perform early platform-specific setup */ + tsp_early_platform_setup(); + + /* + * Update pointer authentication key before the MMU is enabled. It is + * saved in the rodata section, that can be writen before enabling the + * MMU. This function must be called after the console is initialized + * in the early platform setup. + */ + bl_handle_pauth(); + + /* Perform late platform-specific setup */ + tsp_plat_arch_setup(); +} + +/******************************************************************************* * TSP main entry point where it gets the opportunity to initialize its secure * state/applications. Once the state is initialized, it must return to the * SPD with a pointer to the 'tsp_vector_table' jump table. |