[Xen-devel] backport of "x86/hvm: don't rely on shared ioreq state for completion handling" ?

["Jan Beulich" <JBeulich@xxxxxxxx>]

Paul,

as it looks to be quite non-trivial an operation, did you happen to
have to backport commit 480b83162a to 4.4 or older, without
backporting all the ioreq server stuff at the same time? It looks to
me as if the issue predates the addition of ioreq servers, and us
having had customer reports here would seem to make this a
candidate fix (perhaps with at least 125833f5f1 ["x86: fix
ioreq-server event channel vulnerability"] also backported, which
also appears to address a pre-existing issue).

Thanks, Jan


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