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[Xen-devel] Alloc Page from fixed physical memory range

  • To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: "Waseem, Amna" <a.waseem@xxxxxxxxxxxxxxxxxxx>
  • Date: Fri, 11 Aug 2017 13:50:39 +0000
  • Accept-language: en-US, de-DE
  • Delivery-date: Fri, 11 Aug 2017 13:51:48 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>
  • Thread-index: AQHTEqiQ2CGUZWdfeUi17Dk73LJnDA==
  • Thread-topic: Alloc Page from fixed physical memory range

Hello All,

Is there any way in linux e.g using device tree, to give a driver a fixed physical memory range to alloc pages from? All pages are allocated from kernel memory assigned using memory node in device tree. Is there any way to create a memory node and assign it to driver so that buddy allocator allocates pages from that node for that particular device?

Any help will be highly appreciated



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