Hi Jan,
On 14/09/2020 09:48, Jan Beulich wrote:
On 11.09.2020 18:06, Julien Grall wrote:
--- a/xen/include/asm-x86/guest_atomics.h
+++ b/xen/include/asm-x86/guest_atomics.h
@@ -20,6 +20,7 @@
((void)(d), test_and_change_bit(nr, p))
#define guest_cmpxchg(d, ptr, o, n) ((void)(d), cmpxchg(ptr, o, n))
+#define guest_cmpxchg64(d, ptr, o, n) ((void)(d), cmpxchg(ptr, o, n))
While them sitting side by side there's perhaps little risk of
them going out of sync with one another, I still find it a
little odd to open-code guest_cmpxchg() instead of using it,
It depends on how you view it... The implementation is indeed the same
but they are meant to be used in different places.
Anyway... I can use:
#define guest_cmpxchg64 guest_cmpxchg
Cheers,
--
Julien Grall
