Re: [Qemu-devel] VM can not boot after commit 235e898

[Dunrong Huang]

On Tue, Jun 4, 2013 at 2:47 PM, Paolo Bonzini <address@hidden> wrote:

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 <address@hidden

> <mailto:address@hidden>>

> 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.

Ok, thanks for information, I will try it.

Paolo

--

Best Regards,

Dunrong Huang 

Homepage: http://mathslinux.org