Deprecate C virtiofsd

[mirror_qemu.git] / cpu.c

diff --git a/cpu.c b/cpu.c
index 91d9e38acb20a8a6849c695794b59e283aee3f57..3ea38aea70775b4dadb06661a97d1e26b289f0e4 100644 (file)
--- a/cpu.c
+++ b/cpu.c
@@ -137,12 +137,10 @@ void cpu_exec_realizefn(CPUState *cpu, Error **errp)
     if (!accel_cpu_realizefn(cpu, errp)) {
         return;
     }
-#ifdef CONFIG_TCG
     /* NB: errp parameter is unused currently */
     if (tcg_enabled()) {
         tcg_exec_realizefn(cpu, errp);
     }
-#endif /* CONFIG_TCG */
 
 #ifdef CONFIG_USER_ONLY
     assert(qdev_get_vmsd(DEVICE(cpu)) == NULL ||
@@ -169,16 +167,64 @@ void cpu_exec_unrealizefn(CPUState *cpu)
         vmstate_unregister(NULL, &vmstate_cpu_common, cpu);
     }
 #endif
-#ifdef CONFIG_TCG
-    /* NB: errp parameter is unused currently */
     if (tcg_enabled()) {
         tcg_exec_unrealizefn(cpu);
     }
-#endif /* CONFIG_TCG */
 
     cpu_list_remove(cpu);
 }
 
+/*
+ * This can't go in hw/core/cpu.c because that file is compiled only
+ * once for both user-mode and system builds.
+ */
+static Property cpu_common_props[] = {
+#ifdef CONFIG_USER_ONLY
+    /*
+     * Create a property for the user-only object, so users can
+     * adjust prctl(PR_SET_UNALIGN) from the command-line.
+     * Has no effect if the target does not support the feature.
+     */
+    DEFINE_PROP_BOOL("prctl-unalign-sigbus", CPUState,
+                     prctl_unalign_sigbus, false),
+#else
+    /*
+     * Create a memory property for softmmu CPU object, so users can
+     * wire up its memory.  The default if no link is set up is to use
+     * the system address space.
+     */
+    DEFINE_PROP_LINK("memory", CPUState, memory, TYPE_MEMORY_REGION,
+                     MemoryRegion *),
+#endif
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static bool cpu_get_start_powered_off(Object *obj, Error **errp)
+{
+    CPUState *cpu = CPU(obj);
+    return cpu->start_powered_off;
+}
+
+static void cpu_set_start_powered_off(Object *obj, bool value, Error **errp)
+{
+    CPUState *cpu = CPU(obj);
+    cpu->start_powered_off = value;
+}
+
+void cpu_class_init_props(DeviceClass *dc)
+{
+    ObjectClass *oc = OBJECT_CLASS(dc);
+
+    device_class_set_props(dc, cpu_common_props);
+    /*
+     * We can't use DEFINE_PROP_BOOL in the Property array for this
+     * property, because we want this to be settable after realize.
+     */
+    object_class_property_add_bool(oc, "start-powered-off",
+                                   cpu_get_start_powered_off,
+                                   cpu_set_start_powered_off);
+}
+
 void cpu_exec_initfn(CPUState *cpu)
 {
     cpu->as = NULL;
@@ -225,11 +271,6 @@ void tb_invalidate_phys_addr(target_ulong addr)
     tb_invalidate_phys_page_range(addr, addr + 1);
     mmap_unlock();
 }
-
-static void breakpoint_invalidate(CPUState *cpu, target_ulong pc)
-{
-    tb_invalidate_phys_addr(pc);
-}
 #else
 void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr, MemTxAttrs attrs)
 {
@@ -250,17 +291,6 @@ void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr, MemTxAttrs attrs)
     ram_addr = memory_region_get_ram_addr(mr) + addr;
     tb_invalidate_phys_page_range(ram_addr, ram_addr + 1);
 }
-
-static void breakpoint_invalidate(CPUState *cpu, target_ulong pc)
-{
-    /*
-     * There may not be a virtual to physical translation for the pc
-     * right now, but there may exist cached TB for this pc.
-     * Flush the whole TB cache to force re-translation of such TBs.
-     * This is heavyweight, but we're debugging anyway.
-     */
-    tb_flush(cpu);
-}
 #endif
 
 /* Add a breakpoint.  */
@@ -286,8 +316,6 @@ int cpu_breakpoint_insert(CPUState *cpu, vaddr pc, int flags,
         QTAILQ_INSERT_TAIL(&cpu->breakpoints, bp, entry);
     }
 
-    breakpoint_invalidate(cpu, pc);
-
     if (breakpoint) {
         *breakpoint = bp;
     }
@@ -320,8 +348,6 @@ void cpu_breakpoint_remove_by_ref(CPUState *cpu, CPUBreakpoint *bp)
 {
     QTAILQ_REMOVE(&cpu->breakpoints, bp, entry);
 
-    breakpoint_invalidate(cpu, bp->pc);
-
     trace_breakpoint_remove(cpu->cpu_index, bp->pc, bp->flags);
     g_free(bp);
 }
@@ -346,10 +372,6 @@ void cpu_single_step(CPUState *cpu, int enabled)
         cpu->singlestep_enabled = enabled;
         if (kvm_enabled()) {
             kvm_update_guest_debug(cpu, 0);
-        } else {
-            /* must flush all the translated code to avoid inconsistencies */
-            /* XXX: only flush what is necessary */
-            tb_flush(cpu);
         }
         trace_breakpoint_singlestep(cpu->cpu_index, enabled);
     }