[Xen-devel] [PATCH] backport: allocate cap save buffers for PCIe/PCI-X.

["Cui, Dexuan" <dexuan.cui@xxxxxxxxx>]

Changeset 819:e8a9f8910a3f doesn't backport all the necessary codes.
This patch adds the missing part. It is also backported from upstream Linux
kernel and the git commit is:

commit 63f4898ace2788a89ed685672aab092e1c3e50e6
Author: Rafael J. Wysocki <rjw@xxxxxxx>
Date:   Sun Dec 7 22:02:58 2008 +0100

    PCI: handle PCI state saving with interrupts disabled

    Since interrupts will soon be disabled at PCI resume time, we need to
    pre-allocate memory to save/restore PCI config space (or use GFP_ATOMIC,
    but this is safer).

    Reported-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
    Signed-off-by: "Rafael J. Wysocki" <rjw@xxxxxxx>
    Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>

Signed-off-by: Dexuan Cui <dexuan.cui@xxxxxxxxx>

Attachment: add_cap_save_buffer_for_pcie_pcix.patch
Description: add_cap_save_buffer_for_pcie_pcix.patch

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