Messages in this thread | | | Subject | Re: [Qemu-devel] [RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU models | From | Alexander Graf <> | Date | Fri, 20 Feb 2015 18:50:20 +0100 |
| |
> Am 20.02.2015 um 18:37 schrieb Michael Mueller <mimu@linux.vnet.ibm.com>: > > On Fri, 20 Feb 2015 17:57:52 +0100 > Alexander Graf <agraf@suse.de> wrote: > >> Because all CPUs we have in our list only expose 128 bits? > > Here a STFLE result on a EC12 GA2, already more than 128 bits... Is that model on the list?
If that model has 3 elements, yes, the array should span 3.
I hope it's in the list. Every model wecare about should be, no?
> > [mimu@p57lp59 s390xfac]$ ./s390xfac -b > fac[0] = 0xfbfffffbfcfff840 > fac[1] = 0xffde000000000000 > fac[2] = 0x1800000000000000 >> >>> 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 >>> accelerators decide to just implement 64 or 128 bits of facilities that's ok... >> >> So you want to support CPUs that are not part of the list? > > The architecture at least defines more than 2 or 3. Do you want me to limit it to an arbitrary > size?. Only in QEMU or also in the KVM interface?
Only internally in QEMU. The kvm interface should definitely be as big as the spec allows!
Alex
> > Thanks > Michael >
| |