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KVM: s390: Return error on SIDA memop on normal guest

Thomas Huth requested to merge thuth/kernel-cs-9:bz2050813 into main

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2060814

CVE: CVE-2022-0516

Refuse SIDA memops on guests which are not protected. For normal guests, the secure instruction data address designation, which determines the location we access, is not under control of KVM.

Signed-off-by: Thomas Huth thuth@redhat.com

Edited by Thomas Huth

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