Re: [Qemu-devel] [PATCH v2 7/7] i440fx: add an iommu

2012-10-31 Thread Avi Kivity
On 10/30/2012 09:18 PM, Blue Swirl wrote: > On Tue, Oct 30, 2012 at 11:47 AM, Avi Kivity wrote: >> This iommu encrypts addresses on the device bus to avoid divuling information >> to hackers equipped with bus analyzers. Following 3DES, addresses are >> encrypted >> multiple times. A XOR cypher

Re: [Qemu-devel] [PATCH v2 7/7] i440fx: add an iommu

2012-10-30 Thread Blue Swirl
On Tue, Oct 30, 2012 at 11:47 AM, Avi Kivity wrote: > This iommu encrypts addresses on the device bus to avoid divuling information > to hackers equipped with bus analyzers. Following 3DES, addresses are > encrypted > multiple times. A XOR cypher is employed for efficiency. If this is not usef

[Qemu-devel] [PATCH v2 7/7] i440fx: add an iommu

2012-10-30 Thread Avi Kivity
This iommu encrypts addresses on the device bus to avoid divuling information to hackers equipped with bus analyzers. Following 3DES, addresses are encrypted multiple times. A XOR cypher is employed for efficiency. Signed-off-by: Avi Kivity --- hw/piix_pci.c | 77 ++