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Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction
From: |
Alexander Graf |
Subject: |
Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction |
Date: |
Wed, 27 May 2015 16:55:22 +0200 |
> Am 27.05.2015 um 16:31 schrieb Richard Henderson <address@hidden>:
>
>> On 05/26/2015 03:03 PM, Aurelien Jarno wrote:
>> Ok, I understand now. That said I don't see how implementing STFLE will
>> break that. I think it will actually improve things by enabling more
>> facilities and thus making the kernel happier (but maybe not enough).
>
> Somewhat amusingly, by not implementing STFLE we bypass this check.
>
>
>>> #elif defined(CONFIG_MARCH_Z990)
>>> .long 1, 0xc0002000
>>
>> For this one we only miss one instruction in the LD facility. I have it
>> on my TODO list, though it might take a few weeks until it goes to the
>> top.
>
> Which one?
>
>>> #elif defined(CONFIG_MARCH_Z900)
>>> .long 1, 0xc0000000
>>
>> This corresponds to the current value we provide. CONFIG_MARCH_Z900 also
>> correspond to the configuration of the Debian kernel, that's why I am
>> able to boot kernels.
>
> Ah, well that's something. Fedora defaults to z9-109, and I think SuSE does
> the same.
Unfortunately SLE12 has its ALS on z196, so there's quite a bit more work
necessary ;)
Alex
>
>
> r~
- Re: [Qemu-devel] [PATCH 07/10] target-s390x: enable fully implemented facilities, (continued)
- [Qemu-devel] [PATCH 02/10] target-s390x: fix MMU index computation, Aurelien Jarno, 2015/05/24
- [Qemu-devel] [PATCH 06/10] target-s390x: improve facilities list, Aurelien Jarno, 2015/05/24
- [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Aurelien Jarno, 2015/05/24
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Richard Henderson, 2015/05/25
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Alexander Graf, 2015/05/25
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Aurelien Jarno, 2015/05/26
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Richard Henderson, 2015/05/26
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Aurelien Jarno, 2015/05/26
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Richard Henderson, 2015/05/27
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction,
Alexander Graf <=
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Aurelien Jarno, 2015/05/27
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Alexander Graf, 2015/05/27
[Qemu-devel] [PATCH 10/10] target-s390x: implement LAY and LAEY instructions, Aurelien Jarno, 2015/05/24
[Qemu-devel] [PATCH 03/10] target-s390x: define default NaN values, Aurelien Jarno, 2015/05/24
[Qemu-devel] [PATCH 09/10] target-s390x: move a few instructions to the correct facility, Aurelien Jarno, 2015/05/24
Re: [Qemu-devel] [PATCH 00/10] target-s390x: TCG fixes and improvements, Alexander Graf, 2015/05/28