From: Richard Henderson <rth@twiddle.net>
To: Aurelien Jarno <aurelien@aurel32.net>
Cc: qemu-devel@nongnu.org, Alexander Graf <agraf@suse.de>
Subject: Re: [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction
Date: Wed, 27 May 2015 07:31:01 -0700 [thread overview]
Message-ID: <5565D525.1010608@twiddle.net> (raw)
In-Reply-To: <20150526220329.GB12677@aurel32.net>
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~
next prev parent reply other threads:[~2015-05-27 14:31 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-24 23:47 [Qemu-devel] [PATCH 00/10] target-s390x: TCG fixes and improvements Aurelien Jarno
2015-05-24 23:47 ` [Qemu-devel] [PATCH 01/10] target-s390x: fix PSW value on dynamical exception from helpers Aurelien Jarno
2015-05-24 23:47 ` [Qemu-devel] [PATCH 02/10] target-s390x: fix MMU index computation Aurelien Jarno
2015-05-24 23:47 ` [Qemu-devel] [PATCH 03/10] target-s390x: define default NaN values Aurelien Jarno
2015-05-24 23:47 ` [Qemu-devel] [PATCH 04/10] target-s390x: silence NaNs for LOAD LENGTHENED and LOAD ROUNDED Aurelien Jarno
2015-05-24 23:47 ` [Qemu-devel] [PATCH 05/10] target-s390x: detect tininess before rounding for FP operations Aurelien Jarno
2015-05-24 23:47 ` [Qemu-devel] [PATCH 06/10] target-s390x: improve facilities list Aurelien Jarno
2015-05-24 23:47 ` [Qemu-devel] [PATCH 07/10] target-s390x: enable fully implemented facilities Aurelien Jarno
2015-05-25 20:39 ` Alexander Graf
2015-05-25 21:02 ` Aurelien Jarno
2015-05-25 21:04 ` Alexander Graf
2015-05-25 21:13 ` Aurelien Jarno
2015-05-25 21:47 ` Alexander Graf
2015-05-26 6:02 ` Aurelien Jarno
2015-05-26 8:29 ` Alexander Graf
2015-05-26 9:05 ` Aurelien Jarno
2015-05-26 10:19 ` Alexander Graf
2015-05-24 23:47 ` [Qemu-devel] [PATCH 08/10] target-s390x: implement STFLE instruction Aurelien Jarno
2015-05-25 23:08 ` Richard Henderson
2015-05-25 23:14 ` Alexander Graf
2015-05-26 6:03 ` Aurelien Jarno
2015-05-26 16:00 ` Richard Henderson
2015-05-26 22:03 ` Aurelien Jarno
2015-05-27 14:31 ` Richard Henderson [this message]
2015-05-27 14:55 ` Alexander Graf
2015-05-27 15:57 ` Aurelien Jarno
2015-05-28 1:55 ` Alexander Graf
2015-05-24 23:47 ` [Qemu-devel] [PATCH 09/10] target-s390x: move a few instructions to the correct facility Aurelien Jarno
2015-05-24 23:47 ` [Qemu-devel] [PATCH 10/10] target-s390x: implement LAY and LAEY instructions Aurelien Jarno
2015-05-28 22:03 ` [Qemu-devel] [PATCH 00/10] target-s390x: TCG fixes and improvements Alexander Graf
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