[Qemu-devel] Failed booting into OS after introduct the KVM_MEM_READONLY flag for regions

[Zhangleiqiang]

HI, Jordan:

        By using the latest master of qemu, after booting the vnc view will 
continue to be just black, and the os cannot be start. After bisect, I found 
the problem was introduced by the commit: 
235e8982ad393e5611cb892df54881c872eea9e1 (kvm: support using KVM_MEM_READONLY 
flag for regions). There are plenty of medications in this commit, so I report 
this problem to you. 
        The running environment:

        Qemu: 4eda32f588086b6cd0ec2be6a7a6c131f8c2b427
        Host： Fedora 18， kernel： 3.8.1-201.fc18.x86_64
        Boot Cmd： 
        ./x86_64-softmmu/qemu-system-x86_64 -name ovirt -M pc-0.15 -m 1024 
-enable-kvm -boot d \
        -drive file=/pkgs/imgs/win7.qcow2,format=qcow2,id=drive0,if=none \
        -device ide-hd,drive=drive0,id=disk0 \
        -vnc 186.100.8.144:0 -monitor stdio \
        -net tap,ifname=tap0,downscript=no -net nic

        I can provide more information if need.


----------
Leiqzhang

Best Regards