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Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction |
Date: |
Wed, 27 May 2015 07:31:01 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 |
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.
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 <=
- Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction, Alexander Graf, 2015/05/27
- 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