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target/arm: Rebuild hflags at Xscale SCTLR writes 

Continue setting, but not relying upon, env->hflags.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191023150057.25731-20-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2019-10-23 11:00:52 -04:00 committed by Peter Maydell
parent 7b2625eba2
commit 2e5dcf3628
1 changed files with 10 additions and 0 deletions
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10
target/arm/helper.c
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@ -4174,6 +4174,16 @@ static void sctlr_write(CPUARMState *env, const ARMCPRegInfo *ri,
/* ??? Lots of these bits are not implemented. */
/* This may enable/disable the MMU, so do a TLB flush. */
tlb_flush(CPU(cpu));
if (ri->type & ARM_CP_SUPPRESS_TB_END) {
/*
* Normally we would always end the TB on an SCTLR write; see the
* comment in ARMCPRegInfo sctlr initialization below for why Xscale
* is special. Setting ARM_CP_SUPPRESS_TB_END also stops the rebuild
* of hflags from the translator, so do it here.
*/
arm_rebuild_hflags(env);
}
}
static CPAccessResult fpexc32_access(CPUARMState *env, const ARMCPRegInfo *ri,