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Re: [Qemu-devel] [PATCH] target-s390x: Implement stfl and stfle

From: Michal Marek
Subject: Re: [Qemu-devel] [PATCH] target-s390x: Implement stfl and stfle
Date: Sun, 26 Feb 2017 00:30:24 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.0

Dne 25.2.2017 v 21:39 Michal Marek napsal(a):
> Dne 25.2.2017 v 01:05 Richard Henderson napsal(a):
>> On 02/25/2017 12:44 AM, Michal Marek wrote:
>>> +static int do_stfle(CPUS390XState *env, uint64_t addr, int len)
>>> +{
>>> +    S390CPU *cpu = s390_env_get_cpu(env);
>>> +    uint8_t data[64];
>> S390FeatBitmap or S390FeatInit?  Or even a sizeof?
>> Hard coding 64 certainly doesn't seem right.
> I will change it to something more sensible.

I changed it to 2k, which is the maximum that the STFLE instruction can
store. I did not use S390FeatBitmap or S390FeatInit, as the
qemu-internal feature bit assignments differ from the PoO facility bit


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