Re: [edk2-devel] [PATCH v3 1/4] OvmfPkg/Sec: Setup MTRR early in the boot process.

["Gerd Hoffmann" <kraxel@redhat.com>]

  Hi,

> > > @Gerd, what's the qemu command and test environment your QE
> > > run the case? We'd like run it in our side.
> > 
> > <quote>
> > 
> > Tested edk2-ovmf-20231122-1.el9.rhel21704.20240202.1130.noarch with
> > TDX guest, no issue found
> > 
> > Version:
> > 
> > edk2-ovmf-20231122-1.el9.rhel21704.20240202.1130.noarch
> > 
> > guest kernel: 5.14.0-415.el9.x86_64
> > 
> > qemu-kvm-8.0.0-15.el9s.x86_64
> > host kernel-5.14.0-411.test.el9s.x86_64
> > 
> > Steps:
> > 
> > $ sudo /usr/libexec/qemu-kvm  -accel kvm   -drive
> > file=/home/zixchen/rhel94_tdx.qcow2,if=none,id=virtio-disk0   -device
> > virtio-blk-pci,drive=virtio-disk0   -cpu host -smp 16 -m 10240 -
> > object tdx-guest,id=tdx,debug=on   -machine
> > q35,hpet=off,kernel_irqchip=split,memory-encryption=tdx,confidential-
> > guest-support=tdx,memory-backend=ram1   -object memory-backend-
> > ram,id=ram1,size=10240M,private=on  -nographic -vga none   -
> > nodefaults -bios /usr/share/edk2/ovmf/OVMF.inteltdx.secboot.fd  -
> > serial stdio  -netdev user,id=user.0 -device e1000,netdev=user.0
> > 
> > $ dmesg|grep -i tdx
> > [    0.000000] tdx: Guest detected
> > [    0.719122] TECH PREVIEW: Intel Trusted Domain Extensions (TDX)
> > may not be fully supported.
> > [    0.719122]  Intel TDX
> > [    0.719122] process: using TDX aware idle routine
> > 
> > </quote>
> > 
> > Host configuration with the tdx test packages:
> > https://sigs.centos.org/virt/tdx/host/
> > 
> > Latest edk2 build (stable202311 + patches) has the patch series
> > included:
> > 
> > https://kojihub.stream.centos.org/koji/buildinfo?buildID=56985
> > 
> > take care,
> >   Gerd
> 
> Hi,
> 
> any progress on that patch?
> 
> I'm currently trying to passthrough the integrated GPU of an Intel
> CPUs. When I add the GPU to the qemu command, I'm faced with the
> descripted issue. This patch solves the issue.

On my end the state of affairs is unchanged.  Our builds have the patch
included and there are zero problems so far, the issue reported by Min
doesn't reproduce and it is still unclear what is going on.

Min, any update?

take care,
  Gerd



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