[Xen-devel] [PATCH 0/2] VT-d: further XSA-59 workaround adjustments

["Jan Beulich" <JBeulich@xxxxxxxx>]

While doing the backports of the recently committed XSA-59 workaround
patches, when reaching 4.2 I had to inspect the fuzzy applies resulting
from the x86-64 conditionals in that code, making me realize that what
we're doing is still insufficient: We wrongly assume to be able to access
extended config registers (i.e. MMCFG space) at boot time.

Fixing that, in turn made me again look at the one workaround that was
in place in the same function before that recent series, just to find that
the list very likely should have been extended quite a while back.

1: apply quirks at device setup time rather than only at boot
2: extend error report masking workaround to newer chipsets

This (still) is CVE-2013-3495 / XSA-59.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>


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