Re: [Xen-devel] [v8][PATCH 16/17] xen/vtd: group assigned device with RMRR

2014-12-04 Thread Jan Beulich
>>> On 01.12.14 at 10:24, wrote: > --- a/xen/drivers/passthrough/vtd/dmar.c > +++ b/xen/drivers/passthrough/vtd/dmar.c > @@ -572,10 +572,11 @@ acpi_parse_one_rmrr(struct acpi_dmar_header *header) > { > struct acpi_dmar_reserved_memory *rmrr = > container_of(header, struct acpi_dmar_

Re: [Xen-devel] [v8][PATCH 16/17] xen/vtd: group assigned device with RMRR

2014-12-02 Thread Konrad Rzeszutek Wilk
On Mon, Dec 01, 2014 at 05:24:34PM +0800, Tiejun Chen wrote: > Sometimes different devices may share RMRR range so in this s/Sometimes// s/range/ranges/ > case we shouldn't assign these devices into different VMs > since they may have potential leakage even damage between VMs. s/potential leak..

Re: [Xen-devel] [v8][PATCH 16/17] xen/vtd: group assigned device with RMRR

2014-12-02 Thread Tian, Kevin
> From: Chen, Tiejun > Sent: Monday, December 01, 2014 5:25 PM > > Sometimes different devices may share RMRR range so in this > case we shouldn't assign these devices into different VMs > since they may have potential leakage even damage between VMs. > > So we need to group all devices as RMRR r

[Xen-devel] [v8][PATCH 16/17] xen/vtd: group assigned device with RMRR

2014-12-01 Thread Tiejun Chen
Sometimes different devices may share RMRR range so in this case we shouldn't assign these devices into different VMs since they may have potential leakage even damage between VMs. So we need to group all devices as RMRR range to make sure they are just assigned into the same VM. Here we introduc