From: Ian Campbell <ian.campbell@citrix.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: [PATCH v10] run QEMU as non-root
Date: Mon, 16 Nov 2015 12:07:08 +0000 [thread overview]
Message-ID: <1447675628.27871.43.camel@citrix.com> (raw)
In-Reply-To: <1446727646-6802-1-git-send-email-stefano.stabellini@eu.citrix.com>
On Thu, 2015-11-05 at 12:47 +0000, Stefano Stabellini wrote:
> Try to use "xen-qemuuser-domid$domid" first, then
> "xen-qemuuser-shared" and root if everything else fails.
>
> The uids need to be manually created by the user or, more likely, by the
> xen package maintainer.
>
> Expose a device_model_user setting in libxl_domain_build_info, so that
> opinionated callers, such as libvirt, can set any user they like. Do not
> fall back to root if device_model_user is set. Users can also set
> device_model_user by hand in the xl domain config file.
>
> QEMU is going to setuid and setgid to the user ID and the group ID of
> the specified user, soon after initialization, before starting to deal
> with any guest IO.
>
> To actually secure QEMU when running in Dom0, we need at least to
> deprivilege the privcmd and xenstore interfaces, this is just the first
> step in that direction.
>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
acked + applied.
next prev parent reply other threads:[~2015-11-16 12:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-05 12:47 [PATCH v10] run QEMU as non-root Stefano Stabellini
2015-11-16 12:07 ` Ian Campbell [this message]
2015-11-16 12:35 ` Ian Campbell
2018-03-14 14:49 ` George Dunlap
2018-03-14 16:14 ` Anthony PERARD
2018-03-14 17:37 ` George Dunlap
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