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| author | Peter Maydell <peter.maydell@linaro.org> | 2017-06-02 11:51:49 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2017-06-02 11:51:49 +0100 |
| commit | 3bef7012560a7f0ea27b265105de5090ba117514 (patch) | |
| tree | 1612536ce7710cae7a12a9d9f002ef576269e794 /target/arm/translate.c | |
| parent | 29c483a506070e8f554c77d22686f405e30b9114 (diff) | |
arm: Implement HFNMIENA support for M profile MPU
Implement HFNMIENA support for the M profile MPU. This bit controls
whether the MPU is treated as enabled when executing at execution
priorities of less than zero (in NMI, HardFault or with the FAULTMASK
bit set).
Doing this requires us to use a different MMU index for "running
at execution priority < 0", because we will have different
access permissions for that case versus the normal case.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1493122030-32191-14-git-send-email-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/translate.c')
| -rw-r--r-- | target/arm/translate.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/arm/translate.c b/target/arm/translate.c index ac905dd8f4..ae6646c05b 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -163,6 +163,7 @@ static inline int get_a32_user_mem_index(DisasContext *s) return arm_to_core_mmu_idx(ARMMMUIdx_S1SE0); case ARMMMUIdx_MUser: case ARMMMUIdx_MPriv: + case ARMMMUIdx_MNegPri: return arm_to_core_mmu_idx(ARMMMUIdx_MUser); case ARMMMUIdx_S2NS: default: |