On Fri, Aug 22, 2008 at 09:56:16AM -0400, Jimi Xenidis wrote:
> Sorry, I have not really been following this, I assume you are
> replacing SPR accesses with load/stores that do not trap.
> I believe thats fine for reading any SPR, but not true for modifying
> some SPRs, particularly MSR.
> IMHO
On Aug 22, 2008, at 4:17 AM, Kumar Gala wrote:
On Aug 22, 2008, at 3:08 AM, Christian Ehrhardt wrote:
Scott Wood wrote:
On Thu, Aug 21, 2008 at 09:21:39AM -0500, Kumar Gala wrote:
Where is the other discussion? I'd like to understand what's
going on here.. (especially since I added the
On Aug 22, 2008, at 3:08 AM, Christian Ehrhardt wrote:
Scott Wood wrote:
On Thu, Aug 21, 2008 at 09:21:39AM -0500, Kumar Gala wrote:
Where is the other discussion? I'd like to understand what's
going on here.. (especially since I added the wrtee[i] changes to
kernel way back when).
Scott Wood wrote:
On Thu, Aug 21, 2008 at 09:21:39AM -0500, Kumar Gala wrote:
Where is the other discussion? I'd like to understand what's going on
here.. (especially since I added the wrtee[i] changes to kernel way
back when).
Presumably, they want to be able to replace wrtee with
On Thu, Aug 21, 2008 at 09:21:39AM -0500, Kumar Gala wrote:
> Where is the other discussion? I'd like to understand what's going on
> here.. (especially since I added the wrtee[i] changes to kernel way
> back when).
Presumably, they want to be able to replace wrtee with a store to a
hyperviso
On Aug 21, 2008, at 9:13 AM, Christian Ehrhardt wrote:
Kumar Gala wrote:
On Aug 19, 2008, at 5:36 AM, [EMAIL PROTECTED] wrote:
From: Christian Ehrhardt <[EMAIL PROTECTED]>
Dependent on the already existing CONFIG_KVM_GUEST config option
this patch
changes wrteei to wrtee allowing the hyp
Kumar Gala wrote:
On Aug 19, 2008, at 5:36 AM, [EMAIL PROTECTED] wrote:
From: Christian Ehrhardt <[EMAIL PROTECTED]>
Dependent on the already existing CONFIG_KVM_GUEST config option this
patch
changes wrteei to wrtee allowing the hypervisor to rewrite those to
nontrapping
instructions. Mayb
On Aug 19, 2008, at 5:36 AM, [EMAIL PROTECTED] wrote:
From: Christian Ehrhardt <[EMAIL PROTECTED]>
Dependent on the already existing CONFIG_KVM_GUEST config option
this patch
changes wrteei to wrtee allowing the hypervisor to rewrite those to
nontrapping
instructions. Maybe we should split
Josh Boyer wrote:
On Wed, 20 Aug 2008 14:06:51 -0500
Hollis Blanchard <[EMAIL PROTECTED]> wrote:
To be honest I unfortunately don't know how big the impact for
non-virtualized systems is. I would like to test it, but without
hardware performance counters on the core I have I'm not sure (ye
On Wed, 20 Aug 2008 14:06:51 -0500
Hollis Blanchard <[EMAIL PROTECTED]> wrote:
> > > > To be honest I unfortunately don't know how big the impact for
> > > > non-virtualized systems is. I would like to test it, but without
> > > > hardware performance counters on the core I have I'm not sure (y
On Wed, 2008-08-20 at 14:52 -0400, Josh Boyer wrote:
> On Wed, 2008-08-20 at 13:30 -0500, Hollis Blanchard wrote:
> > On Wed, 2008-08-20 at 14:53 +0200, Christian Ehrhardt wrote:
> > >
> > > Arnd Bergmann wrote:
> > > > On Tuesday 19 August 2008, [EMAIL PROTECTED] wrote:
> > > >
> > > >> Depend
On Wed, 2008-08-20 at 13:30 -0500, Hollis Blanchard wrote:
> On Wed, 2008-08-20 at 14:53 +0200, Christian Ehrhardt wrote:
> >
> > Arnd Bergmann wrote:
> > > On Tuesday 19 August 2008, [EMAIL PROTECTED] wrote:
> > >
> > >> Dependent on the already existing CONFIG_KVM_GUEST config option
> > this
On Wed, 2008-08-20 at 14:53 +0200, Christian Ehrhardt wrote:
>
> Arnd Bergmann wrote:
> > On Tuesday 19 August 2008, [EMAIL PROTECTED] wrote:
> >
> >> Dependent on the already existing CONFIG_KVM_GUEST config option
> this patch
> >> changes wrteei to wrtee allowing the hypervisor to rewrite th
Arnd Bergmann wrote:
On Tuesday 19 August 2008, [EMAIL PROTECTED] wrote:
Dependent on the already existing CONFIG_KVM_GUEST config option this patch
changes wrteei to wrtee allowing the hypervisor to rewrite those to nontrapping
instructions. Maybe we should split the kvm guest otpimizations
On Tuesday 19 August 2008, [EMAIL PROTECTED] wrote:
> Dependent on the already existing CONFIG_KVM_GUEST config option this patch
> changes wrteei to wrtee allowing the hypervisor to rewrite those to
> nontrapping
> instructions. Maybe we should split the kvm guest otpimizations in two parts
> one
From: Christian Ehrhardt <[EMAIL PROTECTED]>
Dependent on the already existing CONFIG_KVM_GUEST config option this patch
changes wrteei to wrtee allowing the hypervisor to rewrite those to nontrapping
instructions. Maybe we should split the kvm guest otpimizations in two parts
one for the overhead
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