accel: extend AccelState and AccelClass to user-mode

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

[claudio: rebased on Richard's splitwx work]

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Message-Id: <20210204163931.7358-17-cfontana@suse.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/include/qemu/accel.h b/include/qemu/accel.h
new file mode 100644
index 0000000000..fac4a18703
--- /dev/null
+++ b/include/qemu/accel.h
@@ -0,0 +1,79 @@
+/* QEMU accelerator interfaces
+ *
+ * Copyright (c) 2014 Red Hat Inc
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef QEMU_ACCEL_H
+#define QEMU_ACCEL_H
+
+#include "qom/object.h"
+#include "exec/hwaddr.h"
+
+typedef struct AccelState {
+    /*< private >*/
+    Object parent_obj;
+} AccelState;
+
+typedef struct AccelClass {
+    /*< private >*/
+    ObjectClass parent_class;
+    /*< public >*/
+
+    const char *name;
+    int (*init_machine)(MachineState *ms);
+#ifndef CONFIG_USER_ONLY
+    void (*setup_post)(MachineState *ms, AccelState *accel);
+    bool (*has_memory)(MachineState *ms, AddressSpace *as,
+                       hwaddr start_addr, hwaddr size);
+#endif
+    bool *allowed;
+    /*
+     * Array of global properties that would be applied when specific
+     * accelerator is chosen. It works like MachineClass.compat_props
+     * but it's for accelerators not machines. Accelerator-provided
+     * global properties may be overridden by machine-type
+     * compat_props or user-provided global properties.
+     */
+    GPtrArray *compat_props;
+} AccelClass;
+
+#define TYPE_ACCEL "accel"
+
+#define ACCEL_CLASS_SUFFIX  "-" TYPE_ACCEL
+#define ACCEL_CLASS_NAME(a) (a ACCEL_CLASS_SUFFIX)
+
+#define ACCEL_CLASS(klass) \
+    OBJECT_CLASS_CHECK(AccelClass, (klass), TYPE_ACCEL)
+#define ACCEL(obj) \
+    OBJECT_CHECK(AccelState, (obj), TYPE_ACCEL)
+#define ACCEL_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(AccelClass, (obj), TYPE_ACCEL)
+
+AccelClass *accel_find(const char *opt_name);
+AccelState *current_accel(void);
+
+#ifndef CONFIG_USER_ONLY
+int accel_init_machine(AccelState *accel, MachineState *ms);
+
+/* Called just before os_setup_post (ie just before drop OS privs) */
+void accel_setup_post(MachineState *ms);
+#endif /* !CONFIG_USER_ONLY */
+
+#endif /* QEMU_ACCEL_H */