RE: I/O bandwidth controller (was Re: Too many I/O controllerpatches)

2008-08-06 Thread Caitlin Bestler
Fernando Luis Vázquez Cao wrote: > > *** Goals > 1. Cgroups-aware I/O scheduling (being able to define arbitrary > groupings of processes and treat each group as a single scheduling > entity). > 2. Being able to perform I/O bandwidth control independently on each > device. > 3. I/O bandwidt

RE: [kvm-devel] [Xen-devel] More virtio users

2007-06-12 Thread Caitlin Bestler
[EMAIL PROTECTED] wrote: > On Sunday 10 June 2007, Avi Kivity wrote: >>> - PCI (or your favorite HW bus) passthrough, for your favorite >>> oddball   device (e.g., crypto-accelerators). >>> >> Won't all high-bandwidth traffic be through dma, bypassing virtio? > > It can be done, but you'd also ne

RE: [kvm-devel] [Xen-devel] More virtio users

2007-06-14 Thread Caitlin Bestler
[EMAIL PROTECTED] 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 figure

RE: [kvm-devel] [Xen-devel] More virtio users

2007-06-15 Thread Caitlin Bestler
Arnd Bergmann wrote: > On Thursday 14 June 2007, Caitlin Bestler wrote: >> >> Why not simply adopt the policy that if the IOMMU does not meet the >> security requirements of the Hypervisor then it is not an IOMMU as >> far as the Hypervisor is concerned? >> >

RE: [PATCH 3/3] Virtio draft IV: the net driver

2007-07-11 Thread Caitlin Bestler
[EMAIL PROTECTED] wrote: > On Wed, 2007-07-11 at 12:28 +0200, Christian Borntraeger wrote: >> Am Mittwoch, 4. Juli 2007 schrieb Rusty Russell: >>> +static void try_fill_recv(struct virtnet_info *vi) > >> Hmm, so it allocates skbs until oom or until add_buf fails, right? > > Yep. > >> Do you expe