Re: [PATCH v2 3/5] target/arm: Handle trapping to EL2 of AArch32 VMRS instructions

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On 12/2/19 4:45 PM, Marc Zyngier wrote:
>> Annoying that there's a bug in the manual -- FPSID is listed as group 0 in
>> plenty of places, except in the pseudo-code for Accessing the FPSID
>> which uses TID3.
> 
> Are you sure? I'm looking at DDI0487E_a,
...
> Or have you spotted a discrepancy
> somewhere else (which would be oh-so-surprising...)?

In DDI0487E_a, page G8-6028:

> elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TID3 == '1' then
>   AArch64.AArch32SystemAccessTrap(EL2, 0x08);
> elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR.TID3 == '1' then
>   AArch32.TakeHypTrapException(0x08);
> else
>   return FPSID;

within the summary documentation for FPSID.


r~
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