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

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Message-ID: <20150220160046.4743acc8@bee>
Date:	Fri, 20 Feb 2015 16:00:46 +0100
From:	Michael Mueller <mimu@...ux.vnet.ibm.com>
To:	Alexander Graf <agraf@...e.de>
Cc:	qemu-devel@...gnu.org, kvm@...r.kernel.org,
	linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
	Gleb Natapov <gleb@...nel.org>,
	Christian Borntraeger <borntraeger@...ibm.com>,
	"Jason J. Herne" <jjherne@...ux.vnet.ibm.com>,
	Cornelia Huck <cornelia.huck@...ibm.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Andreas Faerber <afaerber@...e.de>,
	Richard Henderson <rth@...ddle.net>
Subject: Re: [Qemu-devel] [RFC PATCH v2 04/15] cpu-model/s390: Introduce
 S390 CPU models

On Fri, 20 Feb 2015 14:54:23 +0100
Alexander Graf <agraf@...e.de> wrote:

> >  
> > +/* machine related properties */
> > +typedef struct S390CPUMachineProps {
> > +    uint16_t class;      /* machine class */
> > +    uint16_t ga;         /* availability number of machine */
> > +    uint16_t order;      /* order of availability */
> > +} S390CPUMachineProps;
> > +
> > +/* processor related properties */
> > +typedef struct S390CPUProcessorProps {
> > +    uint16_t gen;        /* S390 CMOS generation */
> > +    uint16_t ver;        /* version of processor */
> > +    uint32_t id;         /* processor identification*/
> > +    uint16_t type;       /* machine type */
> > +    uint16_t ibc;        /* IBC value */
> > +    uint64_t *fac_list;  /* list of facilities */  
> 
> 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. 



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