[PATCH v8 15/74] cpu: define cpu_halted helpers

Robert Foley posted 74 patches 5 years, 7 months ago
Maintainers: Roman Bolshakov <r.bolshakov@yadro.com>, Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>, Palmer Dabbelt <palmer@dabbelt.com>, Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>, Artyom Tarasenko <atar4qemu@gmail.com>, "Alex Bennée" <alex.bennee@linaro.org>, Cornelia Huck <cohuck@redhat.com>, David Gibson <david@gibson.dropbear.id.au>, Aurelien Jarno <aurelien@aurel32.net>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, David Hildenbrand <david@redhat.com>, Laurent Vivier <laurent@vivier.eu>, Paolo Bonzini <pbonzini@redhat.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Eduardo Habkost <ehabkost@redhat.com>, Richard Henderson <rth@twiddle.net>, Sagar Karandikar <sagark@eecs.berkeley.edu>, Sunil Muthuswamy <sunilmut@microsoft.com>, Max Filippov <jcmvbkbc@gmail.com>, Alistair Francis <Alistair.Francis@wdc.com>
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[PATCH v8 15/74] cpu: define cpu_halted helpers
Posted by Robert Foley 5 years, 7 months ago
From: "Emilio G. Cota" <cota@braap.org>

cpu->halted will soon be protected by cpu->lock.
We will use these helpers to ease the transition,
since right now cpu->halted has many direct callers.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Robert Foley <robert.foley@linaro.org>
---
 include/hw/core/cpu.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 3f7727ec70..48b46c90ed 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -498,6 +498,30 @@ void cpu_mutex_destroy(CPUState *cpu);
  */
 bool no_cpu_mutex_locked(void);
 
+static inline uint32_t cpu_halted(CPUState *cpu)
+{
+    uint32_t ret;
+
+    if (cpu_mutex_locked(cpu)) {
+        return cpu->halted;
+    }
+    cpu_mutex_lock(cpu);
+    ret = cpu->halted;
+    cpu_mutex_unlock(cpu);
+    return ret;
+}
+
+static inline void cpu_halted_set(CPUState *cpu, uint32_t val)
+{
+    if (cpu_mutex_locked(cpu)) {
+        cpu->halted = val;
+        return;
+    }
+    cpu_mutex_lock(cpu);
+    cpu->halted = val;
+    cpu_mutex_unlock(cpu);
+}
+
 static inline void cpu_tb_jmp_cache_clear(CPUState *cpu)
 {
     unsigned int i;
-- 
2.17.1