[Xen-changelog] [xen master] xen/arm: Don't map disabled device in DOM0

[patchbot@xxxxxxx]

commit ab26c1db4467337afbcfb025ff6eb15c8d3fce95
Author:     Julien Grall <julien.grall@xxxxxxxxxx>
AuthorDate: Fri Sep 13 13:49:21 2013 +0100
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Tue Sep 17 15:28:33 2013 +0100

    xen/arm: Don't map disabled device in DOM0
    
    Linux should cope with 'status = "disabled"' in the Device Tree.
    
    Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
    Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 xen/arch/arm/domain_build.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index fb4f172..70f48b6 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -429,9 +429,13 @@ static int handle_node(struct domain *d, struct 
kernel_info *kinfo,
      *  - Device used by Xen: Obviously dom0 can't use them
      *  - Memory: the guest will see a different view of memory. It will
      *  be allocated later.
+     *  - Disabled device: Linux is able to cope with status="disabled"
+     *  property. Therefore these device doesn't need to be mapped. This
+     *  solution can be use later for pass through.
      */
     if ( dt_device_used_by(np) != DOMID_XEN &&
-         !dt_device_type_is_equal(np, "memory") )
+         !dt_device_type_is_equal(np, "memory") &&
+         dt_device_is_available(np) )
     {
         res = map_device(d, np);
 
--
generated by git-patchbot for /home/xen/git/xen.git#master

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