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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: |
Sun, 19 Jun 2016 14:49:20 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.1.0 |
On 06/19/2016 01:35 AM, Benjamin Herrenschmidt wrote:
> On Fri, 2016-06-17 at 16:32 +0200, Cédric Le Goater wrote:
>> The instruction set PPC_POWER_BR contains nearly all the deleted
>> instructions from isa2. rfi is not part of it and should. Also, only
>> the cpus "PowerPC 601*" make a use of it in their insns_flags.
>
> Are you sure those arent the old POWER instructions as in pre-powerPC
> architecture that 601 (and only 601) supports ?
OK. I get it now.
All the deleted instructions from POWER are/should be under the set
PPC_POWER.
All the deleted instructions from POWER2 are under the set PPC_POWER2.
None of these sets are in use.
For the "PowerPC 601*" cpus, we moved a couple from set PPC_POWER to
subset PPC_POWER_BR.
rfi is special. it is under PPC_FLOW and all CPUs can use it
>> So, we would want this set to be in all the "PowerPC {6,7}*" cpus.
>> Are there more ?
>
> All 32-bit hash based CPUs are arch 1.x and support rfi
>
> All 64-bit hash based CPUs we support (ie, POWER4 and later) are
> architecture 2.x and later.
>
> So my test is correct in the context of what we emulate today.
OK. so this is an openbios issue when run under a ppc64. shouldn't we
be using an openbios-ppc64 in that case ?
We could be more strict with the rfi instruction.
C.
- Re: [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, (continued)
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Thomas Huth, 2016/06/17
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/17
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/17
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Thomas Huth, 2016/06/17
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Alexander Graf, 2016/06/17
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/17
- 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,
Cédric Le Goater <=
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Alexander Graf, 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, Benjamin Herrenschmidt, 2016/06/19
- 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, Alexander Graf, 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, Benjamin Herrenschmidt, 2016/06/20
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Alexander Graf, 2016/06/20
- Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Mark Cave-Ayland, 2016/06/21