From: Gerd Hoffmann <kraxel@redhat.com>
To: "Alex Bennée" <alex.bennee@linaro.org>
Cc: peter.maydell@linaro.org,
xen-devel <xen-devel@lists.xensource.com>,
qemu-devel@nongnu.org, rth@twiddle.net
Subject: Re: [RFC for 2.8 0/3] Drop support for 64 bit guests on 32 bit hosts
Date: Wed, 10 Aug 2016 11:25:05 +0200 [thread overview]
Message-ID: <1470821105.22974.9.camel@redhat.com> (raw)
In-Reply-To: <1470758127-17769-1-git-send-email-alex.bennee@linaro.org>
On Di, 2016-08-09 at 16:55 +0100, Alex Bennée wrote:
> Hi,
>
> I'm proposing for the 2.8 cycle we officially drop supporting 64 bit
> guests on 32 bit hosts. For most of the KVM targets it doesn't make
> any sense anyway and for TCG it makes things harder (e.g. supporting
> 64 bit atomics on a 32 bit platform). I'm not actually convinced
> things actually work if built or that anyone relies on these
> combinations. Consider these patches a way of flushing any such users
> out ;-)
Adding xen-devel to Cc.
64bit xen hypervisor with 32bit dom0 running 32bit qemu, providing
device emulation for 64bit dumUs at least used to be a common setup
years ago. I have my doubts this is still the case in recent xen
versions, but I guess we better ask the Xen guys ...
Can anyone clarify?
thanks,
Gerd
next parent reply other threads:[~2016-08-10 9:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1470758127-17769-1-git-send-email-alex.bennee@linaro.org>
2016-08-10 9:25 ` Gerd Hoffmann [this message]
2016-08-15 17:46 ` [Xen-devel] [RFC for 2.8 0/3] Drop support for 64 bit guests on 32 bit hosts Stefano Stabellini
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