[Xen-devel] Xen 4.10.x and PCI passthrough

["Andreas Kinzler" <hfp@xxxxxxxxx>]

Hello Roger,

in August 2017, I reported a problem with PCI passthrough and MSI  
interrupts  
(https://lists.xenproject.org/archives/html/xen-devel/2017-08/msg01433.html).
That report lead to some patches for Xen and qemu.

Some weeks ago I tried a quite new version of Xen 4.10.2-pre  
(http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=a645331a9f4190e92ccf41a950bc4692f8904239)  
and the PCI card (LSI SAS HBA) using Windows 2012 R2 as a guest.  
Everything works but only to the point where Windows reboots -> then the  
card is no longer usable. If you destroy the domain and recreate the card  
again works.
Did I miss something simple or should we analyze the problem again using  
similar debug prints as before?
Regards Andreas

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