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Re: [qemu-s390x] [PATCH v2 for-2.12 4/5] s390x/tcg: indicate value of TO

From: David Hildenbrand
Subject: Re: [qemu-s390x] [PATCH v2 for-2.12 4/5] s390x/tcg: indicate value of TODPR in STCKE
Date: Fri, 8 Dec 2017 13:45:40 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0

On 08.12.2017 01:02, Richard Henderson wrote:
> On 12/07/2017 07:31 AM, David Hildenbrand wrote:
>> +    /* 16 bit value store in an uint32_t (only valid bits set) */
>> +    tcg_gen_ld32u_i64(todpr, cpu_env, offsetof(CPUS390XState, todpr));
> Any reason not to use a uint16_t and use tcg_gen_ld16u_i64 here?

Yes, KVM introduced and uses this field. As it is used for migration, we
cannot easily change it. (any maybe it was designed that way for future

> r~



David / dhildenb

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