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[Xen-devel] [PATCH] Align PCI memory regions to page size (4K) (Dom-0 Patch)

  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Barak Fargoun" <barak@xxxxxxxxxxxx>
  • Date: Tue, 30 Oct 2007 12:34:19 -0400
  • Cc: Guy Zana <guy@xxxxxxxxxxxx>
  • Delivery-date: Tue, 30 Oct 2007 09:58:34 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcgbB+26HwwrZk5pROykg/1FQdgk1wABugDQAAC5VAAAABh5QAAAI+/A
  • Thread-topic: [PATCH] Align PCI memory regions to page size (4K) (Dom-0 Patch)
Add a boot parameter to Dom-0 kernel ('pci-mem-align') which forces PCI
memory regions to be aligned to 4K. 

In PCI pass-through the mmio resources are mapped/translated from pfns
to mfns (page size), so mmio resources should be at least page-aligned
---
Applies to changeset 154 of the linux-2.6.18-xen.hg repository
---
Signed-off-by: Barak Fargoun     (barak@xxxxxxxxxxxx)

Attachment: final-pci-mem-align-patch.diff
Description: final-pci-mem-align-patch.diff

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