I've tried following the steps in that link several times over the past month or two. I've had no luck getting windows to boot under DUET on kvm. I was able to get the usb install stick to boot but the install would fail very early in the process.
On Thu, Oct 18, 2012 at 11:47 AM, Paolo Bonzini <pbonz...@redhat.com> wrote: > Il 18/10/2012 17:17, Laszlo Ersek ha scritto: >> On 10/18/12 10:12, Gleb Natapov wrote: >>> On Thu, Oct 18, 2012 at 03:38:37AM +0200, Laszlo Ersek wrote: >>>> I have no idea why the UEFI-booted kernel tries to initialize the >>>> display with Int10h, since that is a (VGA) BIOS interrupt. >>> Looks like google knows something about it. Search for "INT 10" here: >>> http://www.uefi.org/events/UEFI-Plugfest-WindowsBootEnvironment.pdf >>> >>> * VGA support still requires INT 10h support >>> * Windows Server 2008 supports headless systems with no VGA >> >> (The hang reproduces with "-vga none" as well.) >> >> Two screenshots linked (sorry, found no easy way to extract text from >> the call stack window): >> - call stack from the (futile) display initialization loop [1], with >> "-vga cirrus", >> - call stack during the "hang" [2]. The call stack looks the same with >> "-vga cirrus" and "-vga none". Appears to be consistent with the kvm ftrace. > > Is it really a hang? I haven't looked at the kvm ftrace, but this looks > more like Windows is running headless. > > Perhaps you can install Windows under DUET (with DUET in a USB flash > drive), configure remote desktop, then boot it again under OVMF, and try > to connect to the Windows remote desktop. > > More info on DUET: http://www.rodsbooks.com/bios2uefi/ > > Paolo > >> I'll try to follow the guest with finer granularity before the idle >> loop. (Single stepping seems a bit too ambitious.) >> >> Thanks! >> Laszlo >> >> [1] >> http://people.redhat.com/~lersek/ovmf_win2k8r2sp1_debug/during-display-init.png >> [2] http://people.redhat.com/~lersek/ovmf_win2k8r2sp1_debug/hang.png >> > ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
