diff mbox series

[Stable-8.2.8,45/49] target/ppc: Fix mtDPDES targeting SMT siblings

Message ID 20241109101443.312701-45-mjt@tls.msk.ru (mailing list archive)
State New
Headers show
Series Patch Round-up for stable 8.2.8, freeze on 2024-11-18 | expand

Commit Message

Michael Tokarev Nov. 9, 2024, 10:14 a.m. UTC 
From: Nicholas Piggin <npiggin@gmail.com>

A typo in the loop over SMT threads to set irq level for doorbells
when storing to DPDES meant everything was aimed at the CPU executing
the instruction.

Cc: qemu-stable@nongnu.org
Fixes: d24e80b2ae ("target/ppc: Add msgsnd/p and DPDES SMT support")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
(cherry picked from commit 0324d236d2918c18a9ad4a1081b1083965a1433b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff mbox series

Patch

diff --git a/target/ppc/misc_helper.c b/target/ppc/misc_helper.c
index a05bdf78c9..a8d0501996 100644
--- a/target/ppc/misc_helper.c
+++ b/target/ppc/misc_helper.c
@@ -283,7 +283,7 @@  void helper_store_dpdes(CPUPPCState *env, target_ulong val)
         PowerPCCPU *ccpu = POWERPC_CPU(ccs);
         uint32_t thread_id = ppc_cpu_tir(ccpu);
 
-        ppc_set_irq(cpu, PPC_INTERRUPT_DOORBELL, val & (0x1 << thread_id));
+        ppc_set_irq(ccpu, PPC_INTERRUPT_DOORBELL, val & (0x1 << thread_id));
     }
     qemu_mutex_unlock_iothread();
 }