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Re: [Qemu-devel] bidirectional data exchange between guest and host wit
From: |
Anthony Lannuzel |
Subject: |
Re: [Qemu-devel] bidirectional data exchange between guest and host without network |
Date: |
Thu, 9 Jul 2009 09:51:13 +0200 (CEST) |
User-agent: |
SquirrelMail/1.4.13 |
> Just the fact any sane OS does read caching is what makes it not work.
> Filesystems are NOT going to do this for you. You can not share
> filesystems like that unless explicitly designed for it.
>
> I remember many years ago in highschool we had a small set of machines
> that had a shared scsi drive between 5 machines (all daisy chained).
> You would shutdown all the machines, then start up the master machine,
> make the drive read/write, add new software and updates, then shutdown,
> switch the drive to read only, and boot all the systems. They could
> then all use the software on the drive, but anything you wanted to save
> had to be done to floppy disks on the individual machines. Writing a
> shared drive was simply not an option.
>
> --
> Len Sorensen
>
> I believe "sync" only disables the write cache.
>
> Paul
Ok I got your point, this is clearly not possible with a regular filesystem.
> Can you not create _another_ network device and use that?
>
> QEMU lets you create lots of network devices.
>
> -- Jamie
>
No, I do not want the guest to be able to communicate with the host
network, so that is not an option.
Virtualbox provides a samba-like sharing feature, which does not uses the
network, but needs the virtualbox guest additions. Has this feature been
discussed for qemu ?
Thanks for your replies
Regards
Anthony
- [Qemu-devel] bidirectional data exchange between guest and host without network, Anthony Lannuzel, 2009/07/07
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Jamie Lokier, 2009/07/07
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Anthony Lannuzel, 2009/07/07
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Lennart Sorensen, 2009/07/07
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Jamie Lokier, 2009/07/07
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Anthony Lannuzel, 2009/07/08
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Lennart Sorensen, 2009/07/08
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Jamie Lokier, 2009/07/10
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Paul Brook, 2009/07/08
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Jamie Lokier, 2009/07/08
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network,
Anthony Lannuzel <=
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Jamie Lokier, 2009/07/10
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Richard W.M. Jones, 2009/07/12
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Jamie Lokier, 2009/07/13
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Richard W.M. Jones, 2009/07/14
- Re: [Qemu-devel] bidirectional data exchange between guest and host without network, Amit Shah, 2009/07/16