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target/arm: Fix PAuth keys access checks for disabled SEL2 

As per the description of the HCR_EL2.APK field in the ARMv8 ARM,
Pointer Authentication keys accesses should only be trapped to Secure
EL2 if it is enabled.

Signed-off-by: Florian Lugou <florian.lugou@provenrun.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220517145242.1215271-1-florian.lugou@provenrun.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Florian Lugou 2022-05-17 16:52:42 +02:00 committed by Peter Maydell
parent 9598c1bb39
commit 07b034ea82
1 changed files with 1 additions and 1 deletions
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2
target/arm/helper.c
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@ -6768,7 +6768,7 @@ static CPAccessResult access_pauth(CPUARMState *env, const ARMCPRegInfo *ri,
int el = arm_current_el(env);
if (el < 2 &&
arm_feature(env, ARM_FEATURE_EL2) &&
arm_is_el2_enabled(env) &&
!(arm_hcr_el2_eff(env) & HCR_APK)) {
return CP_ACCESS_TRAP_EL2;
}