> -Original Message-
> From: Eduardo Habkost [mailto:ehabk...@redhat.com]
> Sent: Wednesday, June 13, 2018 1:49 PM
> To: Moger, Babu
> Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> r...@twiddle.net; mtosa...@redhat.com; qemu-devel@nongnu.org;
>
On Wed, Jun 13, 2018 at 06:21:58PM +, Moger, Babu wrote:
>
>
> > -Original Message-
> > From: Eduardo Habkost [mailto:ehabk...@redhat.com]
> > Sent: Wednesday, June 13, 2018 1:18 PM
> > To: Moger, Babu
> > Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> >
> -Original Message-
> From: Eduardo Habkost [mailto:ehabk...@redhat.com]
> Sent: Wednesday, June 13, 2018 1:18 PM
> To: Moger, Babu
> Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> r...@twiddle.net; mtosa...@redhat.com; qemu-devel@nongnu.org;
>
On Wed, Jun 13, 2018 at 06:10:30PM +, Moger, Babu wrote:
> > -Original Message-
> > From: Eduardo Habkost [mailto:ehabk...@redhat.com]
> > Sent: Wednesday, June 13, 2018 12:18 PM
> > To: Moger, Babu
> > Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> >
> -Original Message-
> From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org]
> On Behalf Of Moger, Babu
> Sent: Wednesday, June 13, 2018 1:11 PM
> To: Eduardo Habkost
> Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> r...@twiddle.net;
> -Original Message-
> From: Eduardo Habkost [mailto:ehabk...@redhat.com]
> Sent: Wednesday, June 13, 2018 12:18 PM
> To: Moger, Babu
> Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> r...@twiddle.net; mtosa...@redhat.com; qemu-devel@nongnu.org;
>
On Wed, Jun 13, 2018 at 04:52:18PM +, Moger, Babu wrote:
[...]
> > What do you think our options are here?
>
> Should we drop automatic topoext completely and move forward?
> What are your thoughts?
Let's drop automatic topoext by now, and see if we find solutions
later. I don't want to
> -Original Message-
> From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org]
> On Behalf Of Babu Moger
> Sent: Tuesday, June 12, 2018 2:47 PM
> To: Eduardo Habkost
> Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> r...@twiddle.net;
On 06/12/2018 02:05 PM, Eduardo Habkost wrote:
On Tue, Jun 12, 2018 at 06:38:08PM +, Moger, Babu wrote:
[...]
I'm starting to think that enabling TOPOEXT automatically is
adding too much complexity and compatibility problems, and it's
better to leave this task to management software.
On Tue, Jun 12, 2018 at 06:38:08PM +, Moger, Babu wrote:
[...]
> > I'm starting to think that enabling TOPOEXT automatically is
> > adding too much complexity and compatibility problems, and it's
> > better to leave this task to management software.
> >
> > The main problem here is:
> >
> >
> -Original Message-
> From: Eduardo Habkost [mailto:ehabk...@redhat.com]
> Sent: Tuesday, June 12, 2018 12:40 PM
> To: Moger, Babu
> Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> r...@twiddle.net; mtosa...@redhat.com; qemu-devel@nongnu.org;
>
On Tue, Jun 12, 2018 at 04:29:25PM +, Moger, Babu wrote:
> > [...]
> > > > +/* TOPOEXT feature requires 0x801E */
> > > > +if (env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_TOPOEXT)
> > {
> > > > +x86_cpu_adjust_level(cpu, >cpuid_min_xlevel,
> > 0x801E);
>
> -Original Message-
> From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org]
> On Behalf Of Eduardo Habkost
> Sent: Monday, June 11, 2018 4:10 PM
> To: Moger, Babu
> Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> r...@twiddle.net;
On Mon, Jun 11, 2018 at 05:50:30PM -0300, Eduardo Habkost wrote:
[...]
> > +/* TOPOEXT feature requires 0x801E */
> > +if (env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_TOPOEXT) {
> > +x86_cpu_adjust_level(cpu, >cpuid_min_xlevel, 0x801E);
> > +}
>
> I
> -Original Message-
> From: Eduardo Habkost [mailto:ehabk...@redhat.com]
> Sent: Monday, June 11, 2018 3:51 PM
> To: Moger, Babu
> Cc: m...@redhat.com; marcel.apfelb...@gmail.com; pbonz...@redhat.com;
> r...@twiddle.net; mtosa...@redhat.com; qemu-devel@nongnu.org;
>
On Fri, Jun 08, 2018 at 06:56:19PM -0400, Babu Moger wrote:
> Enable TOPOEXT feature on EPYC CPU. This is required to support
> hyperthreading on VM guests. Also extend xlevel to 0x801E.
>
> TOPOEXT feature is disabled for legacy machines.
>
> Signed-off-by: Babu Moger
> ---
>
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