[PATCH 1/5] KVM: PPC: e500: Move VCPU's MMUCFG register initialization earlier

[Caraman Mihai Claudiu-B02008]

> -----Original Message-----
> From: Alexander Graf [mailto:agraf at suse.de]
> Sent: Thursday, January 31, 2013 3:21 PM
> To: Caraman Mihai Claudiu-B02008
> Cc: kvm-ppc at vger.kernel.org; kvm at vger.kernel.org; linuxppc-
> dev at lists.ozlabs.org
> Subject: Re: [PATCH 1/5] KVM: PPC: e500: Move VCPU's MMUCFG register
> initialization earlier
> 
> 
> On 30.01.2013, at 14:29, Mihai Caraman wrote:
> 
> > VCPU's MMUCFG register initialization should not depend on
> KVM_CAP_SW_TLB
> > ioctl call. Move it earlier into tlb initalization phase.
> 
> Quite the contrary. The fact that there is an mfspr() in e500_mmu.c
> already tells us that the code is broken. The TLB guest code should only
> depend on input from the SW_TLB configuration. It's completely orthogonal
> to the host capabilities.

Then we have the same issue for TLBnCFG registers which need to be configured
via SW_TLB ioctl. What is the purpose of guest tlb initalization in e500_mmu.c
if we rely on SW_TLB?

-Mike