Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 44 insertions, 0 deletions

diff --git a/include/hw/riscv/riscv_hart.h b/include/hw/riscv/riscv_hart.h
new file mode 100644
index 000000000..bbc21cdc9
--- /dev/null
+++ b/include/hw/riscv/riscv_hart.h
@@ -0,0 +1,44 @@
+/*
+ * QEMU RISC-V Hart Array interface
+ *
+ * Copyright (c) 2017 SiFive, Inc.
+ *
+ * Holds the state of a heterogenous array of RISC-V harts
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2 or later, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_RISCV_HART_H
+#define HW_RISCV_HART_H
+
+#include "hw/sysbus.h"
+#include "target/riscv/cpu.h"
+#include "qom/object.h"
+
+#define TYPE_RISCV_HART_ARRAY "riscv.hart_array"
+
+OBJECT_DECLARE_SIMPLE_TYPE(RISCVHartArrayState, RISCV_HART_ARRAY)
+
+struct RISCVHartArrayState {
+    /*< private >*/
+    SysBusDevice parent_obj;
+
+    /*< public >*/
+    uint32_t num_harts;
+    uint32_t hartid_base;
+    char *cpu_type;
+    uint64_t resetvec;
+    RISCVCPU *harts;
+};
+
+#endif