[Xen-devel] [PATCH v3 1/3] xen/arm: dt: Relax hw domain mapping attributes to p2m_mmio_direct_c

["Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxx>]

From: "Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxxx>

Since the hardware domain is a trusted domain, we extend the
trust to include making final decisions on what attributes to
use when mapping memory regions.

For device-tree configured hardware domains, this patch relaxes
the hardware domains mapping attributes to p2m_mmio_direct_c.
This will allow the hardware domain to control the attributes
via its S1 mappings.

Reviewed-by: Julien Grall <julien.grall@xxxxxxx>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xxxxxxxxxx>
---
 xen/arch/arm/domain_build.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 63301e6..4fc467c 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -1330,7 +1330,7 @@ static int handle_node(struct domain *d, struct 
kernel_info *kinfo,
 
 static int prepare_dtb(struct domain *d, struct kernel_info *kinfo)
 {
-    const p2m_type_t default_p2mt = p2m_mmio_direct_dev;
+    const p2m_type_t default_p2mt = p2m_mmio_direct_c;
     const void *fdt;
     int new_size;
     int ret;
-- 
2.7.4


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