From 099084e3b0f22483f2bbe1cd9d4d5b5a7a137c8d Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Sat, 27 Feb 2016 12:22:27 +0000
Subject: [PATCH] Fixes to allow aarch64 guests to run on aarch64 hosts.

---
 mclu_boot.ml | 43 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/mclu_boot.ml b/mclu_boot.ml
index e0aeef8..6da1bc5 100644
--- a/mclu_boot.ml
+++ b/mclu_boot.ml
@@ -168,6 +168,16 @@ Try: `mclu on %s'\n" hostname hostname;
   let remote_external_kernel_dir = sprintf "/var/tmp/%s.boot" name in
   let remote_external_kernel = sprintf "/var/tmp/%s.boot/kernel" name in
   let remote_external_initrd = sprintf "/var/tmp/%s.boot/initrd" name in
+  let remote_arch = node.MS.node_status.node_info.model in
+
+  (* UEFI firmware and NVRAM on remote, if required. *)
+  let nvram =
+    match remote_arch with
+    | "aarch64" ->
+       Some ("/usr/share/edk2.git/aarch64/QEMU_EFI-pflash.raw",
+             "/usr/share/edk2.git/aarch64/vars-template-pflash.raw",
+             remote_image ^ ".nvram")
+    | _ -> None in
 
   (* Get ready to generate the guest XML. *)
   let vcpus = !vcpus in
@@ -191,9 +201,27 @@ Try: `mclu on %s'\n" hostname hostname;
 
     let xml = xml ^ "\
   <os>
-    <type>hvm</type>
     <boot dev='hd'/>
 " in
+    let xml =
+      match remote_arch with
+      | "aarch64" ->
+         xml ^ sprintf "\
+    <type machine='virt'>hvm</type>
+"
+      | _ ->
+         xml ^ "\
+    <type>hvm</type>
+" in
+
+    let xml =
+      match nvram with
+      | Some (loader, nvram_template, nvram) ->
+         xml ^ sprintf "\
+    <loader readonly='yes' type='pflash'>%s</loader>
+    <nvram template='%s'>%s</nvram>
+" loader nvram_template nvram
+      | None -> xml in
 
     let xml = xml ^
       if template_info.Template.needs_external_kernel then
@@ -267,6 +295,10 @@ Try: `mclu on %s'\n" hostname hostname;
     <console type='pty'>
       <target type='serial' port='0'/>
     </console>
+" in
+    let xml =
+      if remote_arch = "x86_64" then (
+        xml ^ "\
     <input type='tablet' bus='usb'/>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
@@ -274,6 +306,10 @@ Try: `mclu on %s'\n" hostname hostname;
     <video>
       <model type='cirrus' vram='9216' heads='1'/>
     </video>
+"
+      ) else
+        xml in
+    let xml = xml ^ "\
   </devices>
 </domain>" in
     xml
@@ -361,6 +397,11 @@ Try: `mclu on %s'\n" hostname hostname;
     | "" -> ()
     | tz -> fpf "export timezone=%s\n" (quote (sprintf "--timezone %s" tz))
     );
+    (match nvram with
+     | Some (_, nvram_template, nvram) ->
+        fpf "cp %s %s\n" (quote nvram_template) (quote nvram)
+     | None -> ()
+    );
     fpf "%s build\n" remote_template;
     if template_info.Template.needs_external_kernel then (
       fpf "rm -rf %s\n" (quote remote_external_kernel_dir);
-- 
1.8.3.1