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Re: [Xen-devel] [PATCH RESEND 12/14] libxl/arm: Add ACPI module



Hello Shannon,

On 31/05/16 06:03, Shannon Zhao wrote:
From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>

Add the ARM Multiboot module for ACPI, so UEFI can get the base address
of ACPI tables from it.

This new binding/compatible needs to be formalized in docs/misc/arm/device-tree.


Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
---
  tools/libxl/libxl_arm.c | 20 ++++++++++++++++++++
  1 file changed, 20 insertions(+)

diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c
index 13259f8..e7cb578 100644
--- a/tools/libxl/libxl_arm.c
+++ b/tools/libxl/libxl_arm.c
@@ -285,6 +285,26 @@ static int make_chosen_node(libxl__gc *gc, void *fdt, bool 
ramdisk,
          if (res) return res;
      }

+    res = fdt_begin_node(fdt, "modules");
+    if (res) return res;
+
+    res = fdt_begin_node(fdt, "module@0");
+    if (res) return res;
+
+    res = fdt_property_compat(gc, fdt, 2, "xen,linux-acpi",

The ACPI blob is not Linux specific. What about "xen,guest-acpi"?

+                              "xen,multiboot-module");
+    if (res) return res;
+
+    res = fdt_property_regs(gc, fdt, ROOT_ADDRESS_CELLS, ROOT_SIZE_CELLS,
+                                1, 0, 0);
+    if (res) return res;
+
+    res = fdt_end_node(fdt);
+    if (res) return res;
+
+    res = fdt_end_node(fdt);
+    if (res) return res;
+
      res = fdt_end_node(fdt);
      if (res) return res;



Regards,

--
Julien Grall

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