The Intel PT feature includes some sub-features(CPUID.(EAX=14H,ECX=0H)) and
these sub-features are different on different HW platforms. To make the live
migration safety(get the same CPUID info with same cpu model on different HW
platform), the current Intel PT CPUID information is set to a constan
> -Original Message-
> From: Kang, Luwei
> Sent: Tuesday, February 25, 2020 5:38 AM
> To: pbonz...@redhat.com; r...@twiddle.net; ehabk...@redhat.com
> Cc: qemu-devel@nongnu.org; Strong, Beeman ;
> Kang, Luwei
> Subject: [PATCH v1 0/3] Remove the limitation of Intel P
.com; r...@twiddle.net; ehabk...@redhat.com
> > Cc: qemu-devel@nongnu.org; Strong, Beeman ;
> > Kang, Luwei
> > Subject: [PATCH v1 0/3] Remove the limitation of Intel PT CPUID info
> >
> > The Intel PT feature includes some sub-features(CPUID.(EAX=14H,ECX=0H))
> > a
nal Message-
> From: Eduardo Habkost
> Sent: Saturday, September 19, 2020 6:03 AM
> To: Kang, Luwei
> Cc: pbonz...@redhat.com; r...@twiddle.net; qemu-devel@nongnu.org; Strong,
> Beeman ; Jiri Denemark
> ; Robert Hoo
> Subject: Re: [PATCH v1 0/3] Remove the limitation of In
estigating[1].
> >
> > [1] https://bugzilla.redhat.com/show_bug.cgi?id=1853972
> >
> >
> > On Mon, Mar 30, 2020 at 09:56:09AM +, Kang, Luwei wrote:
> > > > -Original Message-----
> > > > From: Kang, Luwei
> > > > Sent: Tuesday
> > > -Original Message-
> > > From: Eduardo Habkost
> > > Sent: Saturday, September 19, 2020 6:03 AM
> > > To: Kang, Luwei
> > > Cc: pbonz...@redhat.com; r...@twiddle.net; qemu-devel@nongnu.org;
> > > Strong, Beeman ; Jiri Denemark
> > request in the BZ stops making sense (because intel-pt won't be
> > migration-safe
> > anymore), but I'm not sure yet that's really the plan.
> >
> >
> > >
> > > Thanks,
> > > Luwei Kang
> > >
> > > >
> > > > Hi Eduardo,
> > > > This patch set will remove some limitations of Intel PT CPUID
> information.
> > > > 1. The "IP payloads" feature will disable the Intel PT in
> > > > guests and it will be
> > > coming soon.
> > > > 2. To make the live migration safe, we set the Intel PT CPU
On Thu, Sep 24, 2020 at 12:47:04PM +, Kang, Luwei wrote:
> > > > > Hi Eduardo,
> > > > > This patch set will remove some limitations of Intel PT CPUID
> > information.
> > > > > 1. The "IP payloads" feature will disable the Intel PT in
> > > > > guests and it will be
> > > > coming soon
> > > > > > Hi Eduardo,
> > > > > > This patch set will remove some limitations of Intel PT
> > > > > > CPUID
> > > information.
> > > > > > 1. The "IP payloads" feature will disable the Intel PT in
> > > > > > guests and it will be
> > > > > coming soon.
> > > > > > 2. To make the live
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