[PATCH] virtinst: use 'host-passthrough' as default 'host' on AArch64

[Liang Yan <lyan@xxxxxxxx>]

virt-install already uses 'host-passthrough' as default when no setup
for cmline '--cpu'. However, it will still use 'host-model' when comes
with '-cpu host'. This will be a problem for aarch64 platfrom as
'host-model' for aarch64 kvm domain on aarch64 host is not supported yet.

Signed-off-by: Liang Yan <lyan@xxxxxxxx>
---
 virtinst/cli.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/virtinst/cli.py b/virtinst/cli.py
index c6a39121..da8c2698 100644
--- a/virtinst/cli.py
+++ b/virtinst/cli.py
@@ -2147,7 +2147,10 @@ class ParserCPU(VirtCLIParser):
 
     def set_model_cb(self, inst, val, virtarg):
         if val == "host":
-            val = inst.SPECIAL_MODE_HOST_MODEL
+            if self.guest.conn.is_qemu() and self.guest.conn.caps.host.cpu.arch == "aarch64":
+                val = inst.SPECIAL_MODE_HOST_PASSTHROUGH
+            else:
+                val = inst.SPECIAL_MODE_HOST_MODEL
         if val == "none":
             val = inst.SPECIAL_MODE_CLEAR
 
-- 
2.26.0