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Subject: Re: [Qemu-devel] VM can not boot after commit 235e898
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To: Dunrong Huang <riegamaths@gmail.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>, qemu-devel <qemu-devel@nongnu.org>

Il 04/06/2013 05:47, Dunrong Huang ha scritto:
> 
> QEMU command:
> ~/usr/bin/qemu-system-x86_64 -enable-kvm -m 1024 debian-append.img
> 
> git bisect tells that the following commit causes this bug:
> 
> commit 235e8982ad393e5611cb892df54881c872eea9e1
> Author: Jordan Justen <jordan.l.justen@intel.com
> <mailto:jordan.l.justen@intel.com>>
> Date:   Wed May 29 01:27:26 2013 -0700
> 
>     kvm: support using KVM_MEM_READONLY flag for regions
>     
>     For readonly memory regions and rom devices in romd_mode,
>     we make use of the KVM_MEM_READONLY. A slot that uses
>     KVM_MEM_READONLY can be read from and code can execute from the
>     region, but writes will exit to qemu.
> 
> After reverting this commit, VM can boot normally.

A patch is queued for that.  Using kernel 3.8 or reverting the commit
will both work.

Paolo

> 
> Any information I should provide?
> 
> -- 
> Best Regards,
> 
> Dunrong Huang 
> 
> Homepage: http://mathslinux.org
> 
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