cpus: add handle_interrupt to the CpusAccel interface

kvm: uses the generic handler
qtest: uses the generic handler
whpx: changed to use the generic handler (identical implementation)
hax: changed to use the generic handler (identical implementation)
hvf: changed to use the generic handler (identical implementation)
tcg: adapt tcg-cpus to point to the tcg-specific handler

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2 files changed, 28 insertions, 26 deletions

diff --git a/accel/tcg/tcg-all.c b/accel/tcg/tcg-all.c
index 000fe4d..fa12081 100644
--- a/accel/tcg/tcg-all.c
+++ b/accel/tcg/tcg-all.c
@@ -47,31 +47,6 @@ typedef struct TCGState TCGState;
 DECLARE_INSTANCE_CHECKER(TCGState, TCG_STATE,
                          TYPE_TCG_ACCEL)
 
-/* mask must never be zero, except for A20 change call */
-static void tcg_handle_interrupt(CPUState *cpu, int mask)
-{
-    int old_mask;
-    g_assert(qemu_mutex_iothread_locked());
-
-    old_mask = cpu->interrupt_request;
-    cpu->interrupt_request |= mask;
-
-    /*
-     * If called from iothread context, wake the target cpu in
-     * case its halted.
-     */
-    if (!qemu_cpu_is_self(cpu)) {
-        qemu_cpu_kick(cpu);
-    } else {
-        qatomic_set(&cpu_neg(cpu)->icount_decr.u16.high, -1);
-        if (icount_enabled() &&
-            !cpu->can_do_io
-            && (mask & ~old_mask) != 0) {
-            cpu_abort(cpu, "Raised interrupt while not in I/O function");
-        }
-    }
-}
-
 /*
  * We default to false if we know other options have been enabled
  * which are currently incompatible with MTTCG. Otherwise when each
@@ -128,7 +103,6 @@ static int tcg_init(MachineState *ms)
     TCGState *s = TCG_STATE(current_accel());
 
     tcg_exec_init(s->tb_size * 1024 * 1024);
-    cpu_interrupt_handler = tcg_handle_interrupt;
     mttcg_enabled = s->mttcg_enabled;
     cpus_register_accel(&tcg_cpus);
 
diff --git a/accel/tcg/tcg-cpus.c b/accel/tcg/tcg-cpus.c
index 4f15c7f..cedd1e6 100644
--- a/accel/tcg/tcg-cpus.c
+++ b/accel/tcg/tcg-cpus.c
@@ -543,9 +543,37 @@ static int64_t tcg_get_elapsed_ticks(void)
     return cpu_get_ticks();
 }
 
+/* mask must never be zero, except for A20 change call */
+static void tcg_handle_interrupt(CPUState *cpu, int mask)
+{
+    int old_mask;
+    g_assert(qemu_mutex_iothread_locked());
+
+    old_mask = cpu->interrupt_request;
+    cpu->interrupt_request |= mask;
+
+    /*
+     * If called from iothread context, wake the target cpu in
+     * case its halted.
+     */
+    if (!qemu_cpu_is_self(cpu)) {
+        qemu_cpu_kick(cpu);
+    } else {
+        qatomic_set(&cpu_neg(cpu)->icount_decr.u16.high, -1);
+        if (icount_enabled() &&
+            !cpu->can_do_io
+            && (mask & ~old_mask) != 0) {
+            cpu_abort(cpu, "Raised interrupt while not in I/O function");
+        }
+    }
+}
+
 const CpusAccel tcg_cpus = {
     .create_vcpu_thread = tcg_start_vcpu_thread,
     .kick_vcpu_thread = tcg_kick_vcpu_thread,
+
+    .handle_interrupt = tcg_handle_interrupt,
+
     .get_virtual_clock = tcg_get_virtual_clock,
     .get_elapsed_ticks = tcg_get_elapsed_ticks,
 };