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arm: force flag recalculation when messing with DAIF

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The recently introduced debug tests in kvm-unit-tests exposed an error
in our handling of singlestep cause by stale hflags. This is caught by
--enable-debug-tcg when running the tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reported-by: Andrew Jones <drjones@redhat.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220202122353.457084-1-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alex Bennée 2022-02-02 12:23:53 +00:00 committed by Peter Maydell
parent 40874a383d
commit c737d86804
1 changed files with 2 additions and 0 deletions
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2
target/arm/helper-a64.c
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@ -83,12 +83,14 @@ void HELPER(msr_i_daifset)(CPUARMState *env, uint32_t imm)
{
daif_check(env, 0x1e, imm, GETPC());
env->daif |= (imm << 6) & PSTATE_DAIF;
arm_rebuild_hflags(env);
}
void HELPER(msr_i_daifclear)(CPUARMState *env, uint32_t imm)
{
daif_check(env, 0x1f, imm, GETPC());
env->daif &= ~((imm << 6) & PSTATE_DAIF);
arm_rebuild_hflags(env);
}
/* Convert a softfloat float_relation_ (as returned by