Re: interrupt remapping support
On Wed, Nov 14, 2012 at 06:31:30PM +0100, emdel wrote: > On Wed, Nov 14, 2012 at 6:06 PM, Gleb Natapov wrote: > > > KVM uses VT-d on a host for device assignment. Guest running inside KVM > > will not see VT-d though since KVM does not emulate it. > > > > So another question comes up in my mind: > what's the purpose of the host devices assignment if I cannot use it for > the guest? > I do not think you understand what I am saying. You can use device assignment for a guest. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: interrupt remapping support
On Wed, Nov 14, 2012 at 05:46:45PM +0100, emdel wrote: > On Tue, Nov 13, 2012 at 10:29 AM, Gleb Natapov wrote: > > > KVM does not implement VT-d spec if this is your question. Any help with > > this will be appreciated. > > > > Hello everybody, > following this link [1] it looks like that we can configure pass-through > devices for KVM guests, > so if it is the case and as you said KVM doesn't implement any Vt-d > specification, > are there any protections in place for DMA attacks? > > KVM uses VT-d on a host for device assignment. Guest running inside KVM will not see VT-d though since KVM does not emulate it. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: interrupt remapping support
On Mon, Nov 12, 2012 at 10:44:51PM -0500, Abhinav Srivastava wrote: > Hi there, > > I would like to know if KVM supports interrupt remapping and queued > invalidation. I could not find it in the kvm source code. > I also noticed that these features are in KVM's TODO list. Is that > accurate? Any pointers or direction would be appreciated. > KVM does not implement VT-d spec if this is your question. Any help with this will be appreciated. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
