[Xen-devel] [PATCH] docs: document shortcomings of running QEMU as non-root

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

Running QEMU as non-root causes migration and PCI passthrough not to
work properly. Migration can be fixed rather easily
(http://marc.info/?l=xen-devel&m=145382864118600), but PCI passthrough
cannot (http://marc.info/?l=xen-devel&m=145286946113964).

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

diff --git a/docs/man/xl.cfg.pod.5 b/docs/man/xl.cfg.pod.5
index 8899f75..40690bd 100644
--- a/docs/man/xl.cfg.pod.5
+++ b/docs/man/xl.cfg.pod.5
@@ -1840,6 +1840,8 @@ option to the device-model.
 
 Run the device model as user "username", instead of
 xen-qemudepriv-domid$domid or xen-qemudepriv-shared or root.
+Please note that running QEMU as non-root causes migration and PCI
+passthrough not to work properly.
 
 =back
 
diff --git a/docs/misc/qemu-deprivilege.txt b/docs/misc/qemu-deprivilege.txt
index dde74ab..879a98e 100644
--- a/docs/misc/qemu-deprivilege.txt
+++ b/docs/misc/qemu-deprivilege.txt
@@ -29,3 +29,7 @@ adduser --no-create-home --system xen-qemuuser-shared
 
 3) root
 As a last resort, libxl will start QEMU as root.
+
+
+Please note that running QEMU as non-root causes migration and PCI
+passthrough not to work properly.

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