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target/arm: Remove redundant mmu_idx lookup

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We already have the full ARMMMUIdx as computed from the
function parameter.

For the purpose of regime_has_2_ranges, we can ignore any
difference between AccType_Normal and AccType_Unpriv, which
would be the only difference between the passed mmu_idx
and arm_mmu_idx_el.

Backports 4aedfc0f633fd06dd2a5dc8ffa93f4c56117e37f
This commit is contained in:
Richard Henderson 2021-03-01 20:09:39 -05:00 committed by Lioncash
parent d350644817
commit 511636a3f4
1 changed files with 1 additions and 2 deletions
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3
qemu/target/arm/mte_helper.c
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@ -538,8 +538,7 @@ static void mte_check_fail(CPUARMState *env, uint32_t desc,
case 2:
/* Tag check fail causes asynchronous flag set. */
mmu_idx = arm_mmu_idx_el(env, el);
if (regime_has_2_ranges(mmu_idx)) {
if (regime_has_2_ranges(arm_mmu_idx)) {
select = extract64(dirty_ptr, 55, 1);
} else {
select = 0;