K 10
svn:author
V 6
tychon
K 8
svn:date
V 27
2018-02-12T14:45:27.352719Z
K 7
svn:log
V 403
Provide further mitigation against CVE-2017-5715 by flushing the
return stack buffer (RSB) upon returning from the guest.

This was inspired by this linux commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/x86/kvm?id=117cc7a908c83697b0b737d15ae1eb5943afe35b

Reviewed by:	grehan
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D14272

END