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| author | Tom Hughes <tomhughes@chromium.org> | 2020-05-14 14:32:32 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-05-22 19:22:19 +0000 |
| commit | 4116f1ae6996ecc87b000f335880f4457780ceb8 (patch) | |
| tree | 00126544311d0817c534ed753a5ccc550c20e93b /core | |
| parent | 67665bb55473e64da629df0546245e61e810927b (diff) | |
| download | chrome-ec-4116f1ae6996ecc87b000f335880f4457780ceb8.tar.gz | |
test: Add on-device MPU unit test
BRANCH=none
BUG=b:151105339, b:155229277
TEST=make BOARD=bloonchipper test-mpu -j && \
./util/flash_jlink.py --board bloonchipper \
--image ./build/bloonchipper/mpu/mpu.bin
=> On console: "runtest"
=> All tests pass, except last which correctly panics:
Data access violation, mfar = 20000000
Signed-off-by: Tom Hughes <tomhughes@chromium.org>
Change-Id: I1c759f50da5075b1e9027cdba253d8c06843be5a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2202852
Commit-Queue: Yicheng Li <yichengli@chromium.org>
Tested-by: Yicheng Li <yichengli@chromium.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Diffstat (limited to 'core')
| -rw-r--r-- | core/cortex-m/mpu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/core/cortex-m/mpu.c b/core/cortex-m/mpu.c index 7735c2d823..53fffaaaa5 100644 --- a/core/cortex-m/mpu.c +++ b/core/cortex-m/mpu.c @@ -65,6 +65,9 @@ int mpu_update_region(uint8_t region, uint32_t addr, uint8_t size_bit, if (!is_aligned(addr, BIT(size_bit))) return -EC_ERROR_INVAL; + if (region >= mpu_num_regions()) + return -EC_ERROR_INVAL; + asm volatile("isb; dsb;"); MPU_NUMBER = region; |