On Monday, February 12, 2024 11:22 PM, Gerd Hoffmann wrote:
> On Thu, Feb 01, 2024 at 10:38:43AM +0100, Gerd Hoffmann wrote:
> >   Hi,
> >
> > > > Can you confirm (a) this patch is OK for
> > > > "OvmfPkg/IntelTdx/Sec/SecMain.c", and (b) this series fixes the slowdown
> you had encountered?
> > > >
> > > > (that's what's left before we can merge this series)
> > > >
> > > We test the patch in TDX and find EXIT_REASON_CR_ACCESS is triggered in
> DXE phase.
> >
> > Hmm.  Sure this caused by this patch series?  For the PEI-less TDX
> > build this series moves the MTRR setup to a different place in SEC.
> > Once the DXE phase started the MTRR configuration should be identical
> > with and without this patch series, and the series also doesn't touch
> > any control register.
> 
> Ping.  Can you double-check please?  Our QE ran a test build with this series
> applied through regression testing (including TDX) and has not found any
> issues.

We double check the patch-set (v3) for both OvmfPkgX64 and IntelTdx. It 
triggered EXIT_REASON_CR_ACCESS in DXE phase when launching a td-guest.
@Gerd, what's the qemu command and test environment your QE run the case? We'd 
like run it in our side.

Thanks
Min


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