[Xen-devel] [PATCH V1 17/29] xen/arm: Mark each device used by Xen as disabled in DOM0 FDT

[Julien Grall <julien.grall@xxxxxxxxxx>]

When a device has a property status with disabled inside, Linux will not use
the device.

Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
---
 xen/arch/arm/domain_build.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 76decf4..d56bc70a 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -208,6 +208,14 @@ static int write_properties(struct domain *d, struct 
kernel_info *kinfo,
             return res;
     }
 
+    /* Disable all devices used by Xen */
+    if ( dt_device_used_by(np) == DOMID_XEN )
+    {
+        res = fdt_property(kinfo->fdt, "status", "disabled", 8 + 1);
+        if ( res )
+            return res;
+    }
+
     /*
      * XXX should populate /chosen/linux,initrd-{start,end} here if we
      * have module[2]
-- 
1.7.10.4


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