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[PATCH] libxl: User defined max_maptrack_frames in a stub domain


  • To: xen-devel@xxxxxxxxxxxxxxxxxxxx
  • From: Dmitry Fedorov <d.fedorov@xxxxxxxxx>
  • Date: Mon, 14 Sep 2020 17:50:32 +0300
  • Authentication-results: mail.tabit.pro (amavisd-new); dkim=pass (1024-bit key) reason="pass (just generated, assumed good)" header.d=tabit.pro
  • Delivery-date: Mon, 14 Sep 2020 15:07:54 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

Hi,

Implementing qrexec+usbip+qemu in Linux-based stub domain leads me to
an issue where a device model stub domain doesn't have maptrack entries.

Would it be possible to apply a user defined max_maptrack_frames value to dm_config in the same way as for max_grant_frames?

Signed-off-by: Dmitry Fedorov <d.fedorov@xxxxxxxxx>
---
 tools/libxl/libxl_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
index f2dc5696b9..f044f2566c 100644
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -2292,7 +2292,7 @@ void libxl__spawn_stub_dm(libxl__egc *egc, libxl__stub_dm_spawn_state *sdss)
     dm_config->b_info.target_memkb = dm_config->b_info.max_memkb;

     dm_config->b_info.max_grant_frames = guest_config->b_info.max_grant_frames;
-    dm_config->b_info.max_maptrack_frames = 0;
+    dm_config->b_info.max_maptrack_frames = guest_config->b_info.max_maptrack_frames;

     dm_config->b_info.u.pv.features = "";

--
2.26.2




 


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