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target/arm: Enable API, APK bits in SCR, HCR 

These bits become writable with the ARMv8.3-PAuth extension.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190129143511.12311-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2019-02-01 14:55:46 +00:00 committed by Peter Maydell
parent 4e7beb0cc0
commit ef682cdb4a
1 changed files with 6 additions and 0 deletions
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6
target/arm/helper.c
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@ -1859,6 +1859,9 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
if (cpu_isar_feature(aa64_lor, cpu)) {
valid_mask |= SCR_TLOR;
}
if (cpu_isar_feature(aa64_pauth, cpu)) {
valid_mask |= SCR_API | SCR_APK;
}
/* Clear all-context RES0 bits. */
value &= valid_mask;
@ -4558,6 +4561,9 @@ static void hcr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
if (cpu_isar_feature(aa64_lor, cpu)) {
valid_mask |= HCR_TLOR;
}
if (cpu_isar_feature(aa64_pauth, cpu)) {
valid_mask |= HCR_API | HCR_APK;
}
/* Clear RES0 bits. */
value &= valid_mask;