[xen master] xl: add stubdomain related options to xl config parser

[patchbot@xxxxxxx]

commit f76a0fa109ab48ec6e910bce3b45804ef6f0915d
Author:     Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
AuthorDate: Mon May 18 21:54:52 2020 -0400
Commit:     Wei Liu <wl@xxxxxxx>
CommitDate: Tue May 19 16:19:15 2020 +0100

    xl: add stubdomain related options to xl config parser
    
    Signed-off-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
    Reviewed-by: Jason Andryuk <jandryuk@xxxxxxxxx>
    Signed-off-by: Jason Andryuk <jandryuk@xxxxxxxxx>
    Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
 docs/man/xl.cfg.5.pod.in | 27 +++++++++++++++++++++++----
 tools/xl/xl_parse.c      |  7 +++++++
 2 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/docs/man/xl.cfg.5.pod.in b/docs/man/xl.cfg.5.pod.in
index 0e9e58a41a..c9bc181a95 100644
--- a/docs/man/xl.cfg.5.pod.in
+++ b/docs/man/xl.cfg.5.pod.in
@@ -2733,10 +2733,29 @@ model which they were installed with.
 
 =item B<device_model_override="PATH">
 
-Override the path to the binary to be used as the device-model. The
-binary provided here MUST be consistent with the
-B<device_model_version> which you have specified. You should not
-normally need to specify this option.
+Override the path to the binary to be used as the device-model running in
+toolstack domain. The binary provided here MUST be consistent with the
+B<device_model_version> which you have specified. You should not normally need
+to specify this option.
+
+=item B<stubdomain_kernel="PATH">
+
+Override the path to the kernel image used as device-model stubdomain.
+The binary provided here MUST be consistent with the
+B<device_model_version> which you have specified.
+In case of B<qemu-xen-traditional> it is expected to be MiniOS-based stubdomain
+image, in case of B<qemu-xen> it is expected to be Linux-based stubdomain
+kernel.
+
+=item B<stubdomain_ramdisk="PATH">
+
+Override the path to the ramdisk image used as device-model stubdomain.
+The binary provided here is to be used by a kernel pointed by 
B<stubdomain_kernel>.
+It is known to be used only by Linux-based stubdomain kernel.
+
+=item B<stubdomain_memory=MBYTES>
+
+Start the stubdomain with MBYTES megabytes of RAM. Default is 128.
 
 =item B<device_model_stubdomain_override=BOOLEAN>
 
diff --git a/tools/xl/xl_parse.c b/tools/xl/xl_parse.c
index 4450d59f16..61b4ef7b7e 100644
--- a/tools/xl/xl_parse.c
+++ b/tools/xl/xl_parse.c
@@ -2525,6 +2525,13 @@ skip_usbdev:
     xlu_cfg_replace_string(config, "device_model_user",
                            &b_info->device_model_user, 0);
 
+    xlu_cfg_replace_string (config, "stubdomain_kernel",
+                            &b_info->stubdomain_kernel, 0);
+    xlu_cfg_replace_string (config, "stubdomain_ramdisk",
+                            &b_info->stubdomain_ramdisk, 0);
+    if (!xlu_cfg_get_long (config, "stubdomain_memory", &l, 0))
+        b_info->stubdomain_memkb = l * 1024;
+
 #define parse_extra_args(type)                                            \
     e = xlu_cfg_get_list_as_string_list(config, "device_model_args"#type, \
                                     &b_info->extra##type, 0);            \
--
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