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Date: Mon, 2 Sep 2013 10:58:07 +0800
From: Gary Ching-Pang Lin <glin@suse.com>
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Subject: Re: [Qemu-devel] [edk2] OVMF hung on qemu 1.6.0 with KVM
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To: Jordan Justen <jljusten@gmail.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>, "edk2-devel@lists.sourceforge.net" <edk2-devel@lists.sourceforge.net>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, Alexander Graf <agraf@suse.de>, Ludwig Nussel <lnussel@suse.de>, Bruce Rogers <brogers@suse.com>, Laszlo Ersek <lersek@redhat.com>, afaerber <afaerber@suse.de>

On Sat, Aug 31, 2013 at 12:16:21AM -0700, Jordan Justen wrote:
> On Thu, Aug 29, 2013 at 8:28 PM, Gary Ching-Pang Lin <glin@suse.com> wrote:
> > On Fri, Aug 30, 2013 at 02:04:40AM +1000, Bruce Rogers wrote:
> >> I tried this out, and I get the black screen as well when ept=n, but it boots
> >> successfully to the efi shell when ept=y.
> >>
> >> Gary, what does 'cat /sys/module/kvm_intel/parameters/ept' report on your
> >> failing machine?
> >>
> > I think this is the root cause. My machine doesn't support ept.
> 
> Gary, Bruce,
> 
> Can one of you try this OVMF branch to see if it boots when EPT is not enabled?
> 
> https://github.com/jljusten/edk2.git ovmf-vm-vtf0
> 
Hi Jordan,

The black screen issue was gone after applying the patches.

Thanks,

Gary Lin