x86/paravirt: switch mixed paravirt/alternative calls to alternative_2
Instead of stacking alternative and paravirt patching, use the new
ALT_FLAG_CALL flag to switch those mixed calls to pure alternative
handling.
This eliminates the need to be careful regarding the sequence of
alternative and paravirt patching.
For call depth tracking callthunks_setup() needs to be adapted to patch
calls at alternative patching sites instead of paravirt calls.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20231030142508.1407-5-jgross@suse.com
5 files changed
