| commit | bd0fdb191c8523a9126bb14ac1b22cb47698ebf5 | [log] [tgz] |
|---|---|---|
| author | Nicholas Piggin <npiggin@gmail.com> | Mon Mar 13 03:03:49 2017 +1000 |
| committer | Paul Mackerras <paulus@ozlabs.org> | Thu Aug 24 20:01:39 2017 +1000 |
| tree | 7887a3e0f241b09ecf4147c873a80676c1e40984 | |
| parent | f2d8421b88ca28253d6265e3852de9f40aae6e63 [diff] |
KVM: PPC: Book3S HV: Use msgsync with hypervisor doorbells on POWER9
When msgsnd is used for IPIs to other cores, msgsync must be executed by
the target to order stores performed on the source before its msgsnd
(provided the source executes the appropriate sync).
Fixes: 1704a81ccebc ("KVM: PPC: Book3S HV: Use msgsnd for IPIs to other cores on POWER9")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>