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Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emu
From: |
Cédric Le Goater |
Subject: |
Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation |
Date: |
Mon, 20 Jun 2016 08:10:31 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.1.0 |
On 06/19/2016 11:12 PM, Benjamin Herrenschmidt wrote:
> On Sun, 2016-06-19 at 19:23 +0200, Cédric Le Goater wrote:
>>> You can run a 32-bit OS or firmware on ppc64, but it needs to know that
>>> it's running on a 64-bit chip and do a few things differently.
>>
>> yes sure but qemu would still allow rfi under 64bit CPUs, that is what
>> I was concerned about. Is that ok ?
>
> Why ? A real CPU won't allow it, why should we ?
That is how I feel also. So, why don't we just remove the op code in the
instruction sets from the 32bit CPUs instead of leaving it and testing
for PPC_SEGMENT_64B ? or is there some reasons we want to keep it around ?
Cheers,
C.
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, (continued)
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/21
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/19
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/19
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/19
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, David Gibson, 2016/06/19
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/20
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Thomas Huth, 2016/06/20
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/20
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/20
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/20
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation,
Cédric Le Goater <=
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/20
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/18
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/18
- Re: [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/17
[Qemu-ppc] [PATCH 02/10] ppc: Create cpu_ppc_set_papr() helper (for LPCR), Cédric Le Goater, 2016/06/13
[Qemu-ppc] [PATCH 03/10] ppc: Rework POWER7 & POWER8 exception model (part 2), Cédric Le Goater, 2016/06/13