On 02.05.2020 00:58, Andrew Cooper wrote: > The current alternatives algorithm clears CR0.WP and writes into .text. This > has a side effect of the mappings becoming shadow stacks once CET is active. > > Adjust _alternative_instructions() to clean up after itself. This involves > extending the set of bits modify_xen_mappings() to include Dirty (and Accessed > for good measure). > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>