From mboxrd@z Thu Jan 1 00:00:00 1970 From: zsaitom Subject: How to combine two PCIe devices in one domain? Date: Mon, 10 Feb 2014 16:18:12 +0800 Message-ID: <52F88B44.7080501@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: iommu@lists.linux-foundation.org Hi all, I have a driver module which would drive two PCIe devices to access a same memory area. As the two devices are in different domains, I should map the memory to every PCIe device. And also the mapped address may be different for individual PCIe device. How could I combine these two PCIe device in one domain so they share some address space? Thanks.