Gerd,
I was busy on something else. The patch was ready and I am testing it before
sending them out.
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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