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Re: [PATCH 2/3] target/arm: Set ptw->out_secure correctly for stage 2 tr
From: |
Peter Maydell |
Subject: |
Re: [PATCH 2/3] target/arm: Set ptw->out_secure correctly for stage 2 translations |
Date: |
Tue, 18 Apr 2023 12:30:22 +0100 |
On Tue, 18 Apr 2023 at 12:01, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> On 4/14/23 18:04, Peter Maydell wrote:
> > + /* Check if page table walk is to secure or non-secure PA space. */
> > + ptw->out_secure = (is_secure
> > + && !(pte_secure
> > + ? env->cp15.vstcr_el2 & VSTCR_SW
> > + : env->cp15.vtcr_el2 & VTCR_NSW));
> > + } else {
> > + /* Regime is physical */
> > + ptw->out_secure = pte_secure;
>
> Is that last comment really correct? I think it could still be stage1 of 2.
I borrowed the comment from earlier in the function, in the ptw->in_debug
branch of the code, which has the same
if (regime_is_stage2(s2_mmu_idx)) {
...stuff...
} else {
/* Regime is physical */
}
structure as this one does after this patch. If s2_mmu_idx isn't
a stage 2 index and it's not one of the Phys indexes, what is it ?
-- PMM