This patch adds support to QEMU for Rusty's recently introduce virtio balloon
driver. The user-facing portions of this are the introduction of a "balloon"
and "info balloon" command in the monitor.
Right now madvise() is commented out since it causes host panics. Ballooning
is still functional t
Marcelo Tosatti wrote:
>> How to proceed now? Do we want to efficiently support ballooning without
>> mmu notifiers? If so, an ioctl to zap the mmu is necessary as discussed
>> before.
>>
>
> Err, actually zapping the mmu is necessary to guarantee guest will not
> use stale shadow entries vs e
On Sat, Mar 08, 2008 at 04:27:13PM -0300, Marcelo Tosatti wrote:
> On Sat, Jan 26, 2008 at 08:47:28PM +0200, Avi Kivity wrote:
> > Anthony Liguori wrote:
> > >Do others expect KVM to just cope with the virtual mapping being changed
> > >out from underneath of it?
> > >
> >
> > kvm should cope w
On Sat, Jan 26, 2008 at 08:47:28PM +0200, Avi Kivity wrote:
> Anthony Liguori wrote:
> >Do others expect KVM to just cope with the virtual mapping being changed
> >out from underneath of it?
> >
>
> kvm should cope with both malicious guests and malicious (or buggy) host
> userspace. It's dif
On Mon, 2008-02-25 at 13:47 -0600, Anthony Liguori wrote:
> This patch adds support to QEMU for Rusty's recently introduce virtio balloon
> driver. The user-facing portions of this are the introduction of a "balloon"
> and "info balloon" command in the monitor.
>
The patch looks good. Might be
Anthony Liguori wrote:
> Do others expect KVM to just cope with the virtual mapping being changed
> out from underneath of it?
>
kvm should cope with both malicious guests and malicious (or buggy) host
userspace. It's difficuly to analyze, but mmu notifiers might be
necessary for the latter
Anthony Liguori wrote:
>>> Looks like it's not. I just hung my host system after doing a bunch
>>> of ballooning with a kernel that doesn't have MM notifiers.
>>>
>>> I'm inclined to think that we should have a capability check for MM
>>> notifiers and just not do madvise if they are
On Saturday 26 January 2008 03:08:57 Marcelo Tosatti wrote:
> On Thu, Jan 24, 2008 at 04:29:51PM -0600, Anthony Liguori wrote:
> > I'm inclined to think that we should have a capability check for MM
> > notifiers and just not do madvise if they aren't present. I don't think
> > the ioctl approach
Dor Laor wrote:
> On Thu, 2008-01-24 at 16:29 -0600, Anthony Liguori wrote:
>
>> Anthony Liguori wrote:
>>
>>> This patch adds support to QEMU for Rusty's recently introduce virtio
>>> balloon
>>> driver. The user-facing portions of this are the introduction of a
>>> "balloon"
>>> and "i
On Thu, 2008-01-24 at 16:29 -0600, Anthony Liguori wrote:
> Anthony Liguori wrote:
> > This patch adds support to QEMU for Rusty's recently introduce virtio
> > balloon
> > driver. The user-facing portions of this are the introduction of a
> > "balloon"
> > and "info balloon" command in the mon
Marcelo Tosatti wrote:
> On Thu, Jan 24, 2008 at 04:29:51PM -0600, Anthony Liguori wrote:
>
>> Anthony Liguori wrote:
>>
>>> This patch adds support to QEMU for Rusty's recently introduce virtio
>>> balloon
>>> driver. The user-facing portions of this are the introduction of a
>>> "ballo
On Thu, Jan 24, 2008 at 04:29:51PM -0600, Anthony Liguori wrote:
> Anthony Liguori wrote:
> >This patch adds support to QEMU for Rusty's recently introduce virtio
> >balloon
> >driver. The user-facing portions of this are the introduction of a
> >"balloon"
> >and "info balloon" command in the mo
Anthony Liguori wrote:
> This patch adds support to QEMU for Rusty's recently introduce virtio balloon
> driver. The user-facing portions of this are the introduction of a "balloon"
> and "info balloon" command in the monitor.
>
> I think using madvise unconditionally is okay but I am not sure.
L
This patch adds support to QEMU for Rusty's recently introduce virtio balloon
driver. The user-facing portions of this are the introduction of a "balloon"
and "info balloon" command in the monitor.
I think using madvise unconditionally is okay but I am not sure. If madvise
is called on memory th
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