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target/arm: Add arm_mmu_idx_is_stage1_of_2

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Use a common predicate for querying stage1-ness.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2020-02-08 12:57:57 +00:00 • committed by Peter Maydell
parent 979a89023f
commit fee7aa46ed
2 changed files with 21 additions and 5 deletions
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18
target/arm/internals.h
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@ -1034,6 +1034,24 @@ static inline ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env)
ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env);
#endif
/**
* arm_mmu_idx_is_stage1_of_2:
* @mmu_idx: The ARMMMUIdx to test
*
* Return true if @mmu_idx is a NOTLB mmu_idx that is the
* first stage of a two stage regime.
*/
static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx mmu_idx)
{
switch (mmu_idx) {
case ARMMMUIdx_Stage1_E0:
case ARMMMUIdx_Stage1_E1:
return true;
default:
return false;
}
}
/*
* Parameters of a given virtual address, as extracted from the
* translation control register (TCR) for a given regime.