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| author | Chuan Zhu <chuan.zhu@arm.com> | 2018-01-02 16:14:33 +0000 |
|---|---|---|
| committer | Giacomo Travaglini <giacomo.travaglini@arm.com> | 2018-02-16 09:21:41 +0000 |
| commit | cf58af7cf2402a280d6789797a9bc956209bdc30 (patch) | |
| tree | 6b7197e7a63a20d5b8c05095ffd1a42447759cf8 /src/arch | |
| parent | 8da5e6b8b6fc1665edefffdf36c0aa7b9d53370d (diff) | |
| download | gem5-cf58af7cf2402a280d6789797a9bc956209bdc30.tar.xz | |
arch-arm: Fix Secure state check in checkFPAdvSIMDTrap64
The old code does secure state check by using "el <= EL2", which
mis-considers secure EL1 and EL0. This patch fixes this by using
inSecureState as in ARM ARM.
Change-Id: I01d847c6af022c1462b16206cbc576f15f5569fd
Reviewed-by: Jack Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/8081
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/arm/insts/static_inst.cc | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/src/arch/arm/insts/static_inst.cc b/src/arch/arm/insts/static_inst.cc index a7ba91e03..40a1fe4b3 100644 --- a/src/arch/arm/insts/static_inst.cc +++ b/src/arch/arm/insts/static_inst.cc @@ -629,9 +629,7 @@ ArmStaticInst::advSIMDFPAccessTrap64(ExceptionLevel el) const Fault ArmStaticInst::checkFPAdvSIMDTrap64(ThreadContext *tc, CPSR cpsr) const { - const ExceptionLevel el = (ExceptionLevel) (uint8_t)cpsr.el; - - if (ArmSystem::haveVirtualization(tc) && el <= EL2) { + if (ArmSystem::haveVirtualization(tc) && !inSecureState(tc)) { HCPTR cptrEnCheck = tc->readMiscReg(MISCREG_CPTR_EL2); if (cptrEnCheck.tfp) return advSIMDFPAccessTrap64(EL2); |