From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Subject: xc_evtchn_status fails with EFAULT on HVM,
	the same on PV works
Date: Fri, 13 Jan 2017 18:31:30 +0100
Message-ID: <20170113173130.GI5268@mail-itl>
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Hi,

I have a strange problem - xc_evtchn_status fails when running in HVM,
while exactly the same code (same kernel, same application etc) works
fine in PV. I've narrowed it down to copy_from_guest call in
common/event_channel.c, but no idea why it fails there. Xen version is
4.8.0. kernel is kernel-4.8.13-100.fc23. Any idea?

--=20
Best Regards,
Marek Marczykowski-G=C3=B3recki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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