On Mon, Apr 27, 2015 at 02:01:05PM +0100, Stefan Hajnoczi wrote:
> A hardware solution would be some kind of inter-guest interrupt
> injection. I don't know VMX well enough to know whether that is
> possible on Intel CPUs.
It is: http://www.mulix.org/pubs/eli/eli.pdf.
(And there's hardware comi
On Thu, Nov 06, 2008 at 04:40:21PM -0600, Anthony Liguori wrote:
> We've been talking about avoiding hardware passthrough entirely and
> just backing a virtio-net backend driver by a dedicated VF in the
> host. That avoids a huge amount of guest-facing complexity, let's
> migration Just Work, and
On Sun, Jun 10, 2007 at 10:33:57AM +0300, Avi Kivity wrote:
> It is worthwhile, when designing virtio, to keep in mind as many
> possible users as possible. In addition to block and net, I see at
> least the following:
>
> - vmgl (paravirtualized 3D graphics)
> [http://www.cs.toronto.edu/~andr
On Wed, Jun 13, 2007 at 01:54:26AM +0200, Arnd Bergmann wrote:
> On Wednesday 13 June 2007, Caitlin Bestler wrote:
> >
> > > It can be done, but you'd also need a passthrough for the
> > > IOMMU in that case, and you get a potential security hole: if
> > > a malicious guest is smart enough to figu
On Wed, Apr 30, 2008 at 01:48:38AM +0300, Avi Kivity wrote:
> Amit Shah wrote:
>>
+ if (is_error_page(host_page)) {
+ printk(KERN_INFO "%s: gfn %p not valid\n",
+ __func__, (void *)page_gfn);
+ r = -1;
>>> r = -1 is not really infor
On Tue, Apr 29, 2008 at 01:37:29PM +0300, Amit Shah wrote:
> dma_alloc_coherent() doesn't call dma_ops->alloc_coherent in case no
> IOMMU translations are necessary.
I always thought this was a huge wart in the x86-64 DMA ops. Would
there be strong resistance to fixing it so that alloc_coherent
m
