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Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emu
From: |
Cédric Le Goater |
Subject: |
Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation |
Date: |
Fri, 17 Jun 2016 12:41:51 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.8.0 |
On 06/17/2016 09:10 AM, Thomas Huth wrote:
> On 17.06.2016 08:03, Cédric Le Goater wrote:
>> On 06/17/2016 07:54 AM, Cédric Le Goater wrote:
>>> On 06/17/2016 04:27 AM, David Gibson wrote:
>>>> On Thu, Jun 16, 2016 at 11:07:02AM +1000, David Gibson wrote:
>>>>> On Mon, Jun 13, 2016 at 07:24:47AM +0200, Cédric Le Goater wrote:
>>>>>> From: Benjamin Herrenschmidt <address@hidden>
>>>>>>
>>>>>> This reworks emulation of the various "rfi" variants. I removed
>>>>>> some masking bits that I couldn't make sense of, the only bit that
>>>>>> I am aware we should mask here is POW, the CPU's MSR mask should
>>>>>> take care of the rest.
>>>>>>
>>>>>> This also fixes some problems when running 32-bit userspace under
>>>>>> a 64-bit kernel.
he.
>>>>>> Signed-off-by: Benjamin Herrenschmidt <address@hidden>
>>>>>> Reviewed-by: David Gibson <address@hidden>
>>>>>
>>>>> I've merged this patch to ppc-for-2.7.
>>>>
>>>> ..and now I've removed it again. It seems that this breaks Thomas'
>>>> new test that OpenBIOS runs on the mac machine types. Not sure why,
>>>> but we need to figure that out before I apply.
>>>
>>> Just this patch ? I booted a macosx image with it. but maybe just a mac99.
>>> I will check today.
>>
>> With your branch ppc-for-2.7 (at commit aba2e6258d86) + the
>> "ppc: Fix rfi/rfid/hrfi/... emulation" patch, these guests :
>>
>> qemu-system-ppc -cdrom ./darwinppc-602.cdr -boot d
>> qemu-system-ppc -M mac99 -cdrom ./darwinppc-602.cdr -boot d
> ^
> |
> You're missing the "64" here ;-)
>
>> reach the installer macosx installer.
>
> It seems to be only failing for the 64-bit builds - and there only for
> the PPC970 CPU (which is the default for the mac99 machine in 64-bit
> builds):
>
> qemu-system-ppc64 -nographic -cpu 750 -M mac99 ==> works fine
>
> qemu-system-ppc64 -nographic -cpu 970 -M mac99 ==> hangs
This is too brutal :
+ /* This instruction doesn't exist anymore on 64-bit server
+ * processors compliant with arch 2.x
+ */
+ if (ctx->insns_flags & PPC_SEGMENT_64B) {
+ gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
+ return;
+ }
There are a couple of instructions which have been deleted from
ISA 2.x. rfi is one of them. Could we use a insn_flag to filter
them ?
Thanks,
C.
- Re: [Qemu-devel] [PATCH 02/10] ppc: Create cpu_ppc_set_papr() helper (for LPCR), (continued)
- [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/13
- Re: [Qemu-devel] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, David Gibson, 2016/06/15
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, David Gibson, 2016/06/16
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/17
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/17
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, David Gibson, 2016/06/17
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/17
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Thomas Huth, 2016/06/17
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/17
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation,
Cédric Le Goater <=
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Thomas Huth, 2016/06/17
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Alexander Graf, 2016/06/17
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/17
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/18
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/19
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Alexander Graf, 2016/06/19
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Cédric Le Goater, 2016/06/19
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/19
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/19
- Re: [Qemu-devel] [Qemu-ppc] [PATCH 01/10] ppc: Fix rfi/rfid/hrfi/... emulation, Benjamin Herrenschmidt, 2016/06/20