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Date: Mon, 11 Sep 2017 20:43:24 -0000
From: Aleksei Kovura <alex3kov@zoho.com>
Reply-To: Bug 1715700 <1715700@bugs.launchpad.net>
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Subject: [Qemu-devel] [Bug 1715700] Re: Windows 7 guest won't boot on qemu
 2.10 (works on 2.9)
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To: qemu-devel@nongnu.org

Bisected. Good thing Igor is already here :)

208fa0e43645edd0b0d8f838857dfc79daff40a8 is the first bad commit
commit 208fa0e43645edd0b0d8f838857dfc79daff40a8
Author: Igor Mammedov <imammedo@redhat.com>
Date:   Fri Jul 28 11:09:05 2017 +0200

    pc: make 'pc.rom' readonly when machine has PCI enabled

-- =

You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1715700

Title:
  Windows 7 guest won't boot on qemu 2.10 (works on 2.9)

Status in QEMU:
  New

Bug description:
  Qemu version: 2.10 stable.
  Guest: Windows 7 SP1 x64, virtio drivers are already installed in the gue=
st.
  Command line:
  qemu-system-x86_64 \
      -nodefaults \
      -nodefconfig \
      -machine type=3Dq35,accel=3Dkvm \
      -enable-kvm \
      -cpu host \
      -m 2048 \
      -vga virtio \
      -boot menu=3Don \
      -smbios file=3D/path/dmidecode_BIOS.bin \
      -acpitable file=3D/path/acpi_slic.bin \
      -bios /path/OVMF_CODE.fd \
      -net none \
      -drive if=3Dvirtio,media=3Ddisk,file=3D/media/win7.qcow2 \
      -device pcie-root-port \
      -device ich9-usb-ehci1 \
      -device ich9-usb-uhci1 \
      -device ich9-usb-uhci2 \
      -device ich9-usb-uhci3

  Windows hangs at boot with waving flag screen (flag doesn't freeze,
  keeps waving indefinitely). Same command line boots fine with Qemu
  2.9. I tried changing machine type to pc-q35-2.9 - same result.

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