On Wed, May 24, 2023 at 12:32:24PM +0000, Ni, Ray wrote:
> Gerd,
> I was busy on something else. The patch was ready and I am testing it before
> sending them out.
Ping. Any update?
take care,
Gerd
>
> Thanks,
> Ray
>
>
> > -----Original Message-----
> > From: kra...@redhat.com <kra...@redhat.com>
> > Sent: Wednesday, May 3, 2023 3:24 PM
> > To: Ni, Ray <ray...@intel.com>
> > Cc: devel@edk2.groups.io; Pawel Polawski <ppola...@redhat.com>; Kumar,
> > Rahul R <rahul.r.ku...@intel.com>; Oliver Steffen <ostef...@redhat.com>;
> > Dong, Eric <eric.d...@intel.com>
> > Subject: Re: [edk2-devel] [PATCH 1/1] UefiCpuPkg/MpInitLib: fix apic mode
> > for cpu hotplug
> >
> > On Tue, Mar 21, 2023 at 07:28:44AM +0000, Ni, Ray wrote:
> > > > + } else if ((PcdGet32 (PcdCpuBootLogicalProcessorNumber) > 0) &&
> > > > + (PcdGet32 (PcdCpuMaxLogicalProcessorNumber) > 255))
> > > > + {
> > > > + X2Apic = TRUE;
> > >
> > > Gerd,
> > > I agree with your needs that want X2 APIC even the actual processor number
> > in BIOS phase <= 255.
> > >
> > > Question: Is it possible that BIOS stays at XAPIC, and later OS switches
> > > to X2
> > APIC when the maximum CPU count > 255?
> > >
> > > I am thinking about adding a new PCD to tell MP code switch to x2 apic in
> > > the
> > first time AP wakes up. Possible timeline for the code change is
> > > about within 1 month. Do you think it can meet your needs?
> >
> > Ping. What is the status here? I'd like to see that fixed for OVMF
> > for the next stable release, and freeze is coming closer ...
> >
> > take care,
> > Gerd
>
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