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Cota" To: qemu-devel@nongnu.org Date: Mon, 17 Sep 2018 12:30:51 -0400 Message-Id: <20180917163103.6113-24-cota@braap.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180917163103.6113-1-cota@braap.org> References: <20180917163103.6113-1-cota@braap.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 64.147.123.25 Subject: [Qemu-devel] [PATCH 23/35] target/s390x: access cpu->interrupt_request with atomics X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Hildenbrand , Cornelia Huck , Alexander Graf , Christian Borntraeger , qemu-s390x@nongnu.org, Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Paolo Bonzini Cc: Cornelia Huck Cc: Christian Borntraeger Cc: Alexander Graf Cc: Richard Henderson Cc: David Hildenbrand Cc: qemu-s390x@nongnu.org Signed-off-by: Paolo Bonzini Signed-off-by: Emilio G. Cota Reviewed-by: David Hildenbrand Reviewed-by: Cornelia Huck --- hw/intc/s390_flic.c | 2 +- target/s390x/cpu.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c index 5f8168f0f0..bce07c8a1e 100644 --- a/hw/intc/s390_flic.c +++ b/hw/intc/s390_flic.c @@ -189,7 +189,7 @@ static void qemu_s390_flic_notify(uint32_t type) CPU_FOREACH(cs) { S390CPU *cpu = S390_CPU(cs); - cs->interrupt_request |= CPU_INTERRUPT_HARD; + atomic_or(&cs->interrupt_request, CPU_INTERRUPT_HARD); /* ignore CPUs that are not sleeping */ if (s390_cpu_get_state(cpu) != S390_CPU_STATE_OPERATING && diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index 8ed4823d6e..d4c93abc29 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -65,7 +65,7 @@ static bool s390_cpu_has_work(CPUState *cs) return false; } - if (!(cs->interrupt_request & CPU_INTERRUPT_HARD)) { + if (!(atomic_read(&cs->interrupt_request) & CPU_INTERRUPT_HARD)) { return false; }