On Fri, 2013-08-02 at 22:11 -0500, Bhushan Bharat-R65777 wrote:
> > How does wimg get set in the pfnmap case?
>
> Pfnmap is not kernel managed pages, right? So should we set I+G there ?
It could depend on ppc_md.phys_mem_access_prot(). Can't you pull it
from the PTE regardless of pfnmap?
-Scott
On Sat, 2013-08-03 at 14:25 +1000, Benjamin Herrenschmidt wrote:
> On Sat, 2013-08-03 at 03:11 +, Bhushan Bharat-R65777 wrote:
> >
> > >
> > > Could you explain why we need to set dirty/referenced on the PTE, when we
> > > didn't
> > > need to do that before? All we're getting from the PTE i
On Sat, 2013-08-03 at 03:11 +, Bhushan Bharat-R65777 wrote:
>
> >
> > Could you explain why we need to set dirty/referenced on the PTE, when we
> > didn't
> > need to do that before? All we're getting from the PTE is wimg.
> > We have MMU notifiers to take care of the page being unmapped, an
Subject: Re: [PATCH 6/6 v2] kvm: powerpc: use caching attributes as per linux
> pte
>
> On Thu, Aug 01, 2013 at 04:42:38PM +0530, Bharat Bhushan wrote:
> > diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index
> > 17722d8..eb2 100644
> > --- a/arc
On Thu, Aug 01, 2013 at 04:42:38PM +0530, Bharat Bhushan wrote:
> diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
> index 17722d8..eb2 100644
> --- a/arch/powerpc/kvm/booke.c
> +++ b/arch/powerpc/kvm/booke.c
> @@ -697,7 +697,7 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, str
On 08/01/2013 07:12 PM, Bharat Bhushan wrote:
KVM uses same WIM tlb attributes as the corresponding qemu pte.
For this we now search the linux pte for the requested page and
get these cache caching/coherency attributes from pte.
Signed-off-by: Bharat Bhushan
---
v1->v2
- Use Linux pte for wim
KVM uses same WIM tlb attributes as the corresponding qemu pte.
For this we now search the linux pte for the requested page and
get these cache caching/coherency attributes from pte.
Signed-off-by: Bharat Bhushan
---
v1->v2
- Use Linux pte for wimge rather than RAM/no-RAM mechanism
arch/powerp
