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| author | Nicholas Piggin <[email protected]> | 2017-10-10 10:18:28 +0000 |
|---|---|---|
| committer | Paul Mackerras <[email protected]> | 2017-10-14 00:32:53 +0000 |
| commit | 2cde3716321ec64a1faeaf567bd94100c7b4160f (patch) | |
| tree | 2894440e99d3d8b0d92e9cafb5df18e8840cb721 /lib/assoc_array.c | |
| parent | KVM: PPC: Fix oops when checking KVM_CAP_PPC_HTM (diff) | |
| download | kernel-2cde3716321ec64a1faeaf567bd94100c7b4160f.tar.gz kernel-2cde3716321ec64a1faeaf567bd94100c7b4160f.zip | |
KVM: PPC: Book3S HV: POWER9 more doorbell fixes
- Add another case where msgsync is required.
- Required barrier sequence for global doorbells is msgsync ; lwsync
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")
Cc: [email protected] # v4.10+
Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
Diffstat (limited to 'lib/assoc_array.c')
0 files changed, 0 insertions, 0 deletions