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-rw-r--r--target/ppc/excp_helper.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 3543926..7683ea0 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -3130,6 +3130,10 @@ void helper_book3s_msgsndp(CPUPPCState *env, target_ulong rb)
helper_hfscr_facility_check(env, HFSCR_MSGP, "msgsndp", HFSCR_IC_MSGP);
+ if (!(env->flags & POWERPC_FLAG_SMT_1LPAR)) {
+ nr_threads = 1; /* msgsndp behaves as 1-thread in LPAR-per-thread mode*/
+ }
+
if (!dbell_type_server(rb) || ttir >= nr_threads) {
return;
}