Re: [Qemu-devel] [PATCH v2 01/10] ppc: Fix rfi/rfid/hrfi/... emulation

[Cédric Le Goater]

On 09/07/2016 01:08 PM, Benjamin Herrenschmidt wrote:
> On Wed, 2016-09-07 at 12:50 +0200, Cédric Le Goater wrote:
>> This is a bit broader than Ben's patch which used PPC_SEGMENT_64B. 
>> it's basically !PPC_64B which includes the e5500.
>>
>> If so, here is a proposal below adding a new PPC_RFI in the 
>> "PowerPC Instructions types definitions" enum for that purpose. 
>> Not much bits left there.
> 
> Why not stick to PPC_SEGMENT_64B ?

I am trying to remove the rfi instruction from the set of the CPU 
and I think we need to introduce a new PPC_* bit for GEN_HANDLER to :

+GEN_HANDLER(rfi, 0x13, 0x12, 0x01, 0x03FF8001, PPC_RFI),

we can also keep the test on PPC_SEGMENT_64B in the handler which 
works perfectly fine. 

> rfi exists on all 32-bit processors and all non-Book3S (aka server aka
> segment/hash) 64-bit. So PPC_SEGMENT_64B is the test we want.
> 
> IE. rfi does exist on e5500

ok.

Cheers,
C.