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From: Pekka Enberg <penberg@kernel.org>
To: richard -rw- weinberger <richard.weinberger@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>,
	Christoph Hellwig <hch@infradead.org>,
	Dave Airlie <airlied@gmail.com>, Borislav Petkov <bp@alien8.de>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Avi Kivity <avi@redhat.com>,
	linux-kernel@vger.kernel.org, Asias He <asias.hejun@gmail.com>,
	Sasha Levin <levinsasha928@gmail.com>,
	Cyrill Gorcunov <gorcunov@openvz.org>
Subject: Re: [GIT PULL] Linux KVM tool for v3.7-rc0
Date: Sun, 21 Oct 2012 18:39:40 +0300	[thread overview]
Message-ID: <CAOJsxLGm+Qd132i2c7q9p1_yweLiRzC4GR0-Xmx79m2==4_FAw@mail.gmail.com> (raw)
In-Reply-To: <CAFLxGvzLOa-BibZ39_yMEC70AseEPbtjcNGk6jLwaAVsU2ujwA@mail.gmail.com>

On Sun, Oct 21, 2012 at 2:59 PM, Ingo Molnar <mingo@kernel.org> wrote:
>> You are wrong on three counts:
>>
>>  - As I mentioned it in my first mail to you this is not the
>>    same as 'vm run': you still have a qemu-root.img while
>>    tools/kvm does not ...
>>
>>    'vm run' works without having any disk image around, it just
>>    uses the existing distro binaries and boots them, sharing the
>>    host file system.
>>
>>  - automatic, transparent host filesystem sharing is another
>>    useful feature: I can copy files in/out of the virtual
>>    machine using the host filesystem.
>>
>>  - transparent networking is up and running straight away

On Sun, Oct 21, 2012 at 5:02 PM, richard -rw- weinberger
<richard.weinberger@gmail.com> wrote:
> qemu supports all these features.
> E.g. to access the host fs use:
> qemu ... \
>   -fsdev local,security_model=passthrough,id=fsdev-root,path=/your/root/,readonly
> \
>   -device virtio-9p-pci,id=fs-root,fsdev=fsdev-root,mount_tag=rootshare

IIRC, QEMU uses SLIRP non-root zero-config networking which is much
more limited than what LKVM offers out of the box.

Using host system rootfs is not quote as simple as you seem to think
so you need something like Alexander Graf's shell script for
comparable 'vm run' experience.

                        Pekka

  parent reply	other threads:[~2012-10-21 15:39 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-12 11:34 [GIT PULL] Linux KVM tool for v3.7-rc0 Pekka Enberg
2012-10-12 17:27 ` Christoph Hellwig
2012-10-18 10:03   ` Ingo Molnar
2012-10-18 10:31     ` Pekka Enberg
2012-10-16  2:41 ` Stephen Rothwell
2012-10-16 14:50   ` Linus Torvalds
2012-10-20  7:04     ` Stephen Rothwell
2012-10-20 18:14       ` Borislav Petkov
2012-10-21  3:07         ` Dave Airlie
2012-10-21  3:46           ` Yinghai Lu
2012-10-21 11:03           ` Christoph Hellwig
2012-10-21 12:59             ` Ingo Molnar
2012-10-21 14:02               ` richard -rw- weinberger
2012-10-21 15:03                 ` Ingo Molnar
2012-10-21 17:15                   ` Borislav Petkov
2012-10-21 17:40                     ` Markus Trippelsdorf
2012-10-21 17:51                       ` Ingo Molnar
2012-10-21 17:54                         ` Markus Trippelsdorf
2012-10-21 18:04                           ` Markus Trippelsdorf
2012-10-21 18:10                             ` Ingo Molnar
2012-10-22  9:26                               ` Avi Kivity
2012-10-21 18:09                           ` Ingo Molnar
2012-10-21 15:39                 ` Pekka Enberg [this message]
2012-10-22  9:24                   ` Avi Kivity
2012-10-22 10:16                     ` Gleb Natapov
2012-10-23  2:20                       ` Asias He
2012-10-31 15:05                         ` Gleb Natapov
2012-10-21 11:18           ` Borislav Petkov
2012-10-21 11:29             ` richard -rw- weinberger
2012-10-21 22:16               ` Theodore Ts'o
2012-11-14  5:24       ` Stephen Rothwell
2012-11-14  6:02         ` Theodore Ts'o

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