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Re: [Qemu-devel] [RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU

From: Michael Mueller
Subject: Re: [Qemu-devel] [RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU models
Date: Fri, 20 Feb 2015 16:49:44 +0100

On Fri, 20 Feb 2015 16:22:20 +0100
Alexander Graf <address@hidden> wrote:

> >> 
> >> Just make this uint64_t fac_list[2]. That way we don't have to track any
> >> messy allocations.  
> > 
> > It will be something like "uint64_t 
> > fac_list[S390_CPU_FAC_LIST_SIZE_UINT64]" and in total 2KB
> > not just 16 bytes but I will change it.   
> Why? Do we actually need that many? This is a qemu internal struct.

How do you know that 2 is a good size?

I want to have this independent from a future machine of the z/Arch. The kernel 
stores the full
facility set, KVM does and there is no good reason for QEMU not to do. If other 
decide to just implement 64 or 128 bits of facilities that's ok...


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