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, 43 insertions, 0 deletions

diff --git a/include/hw/misc/aspeed_hace.h b/include/hw/misc/aspeed_hace.h
new file mode 100644
index 000000000..94d5ada95
--- /dev/null
+++ b/include/hw/misc/aspeed_hace.h
@@ -0,0 +1,43 @@
+/*
+ * ASPEED Hash and Crypto Engine
+ *
+ * Copyright (C) 2021 IBM Corp.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef ASPEED_HACE_H
+#define ASPEED_HACE_H
+
+#include "hw/sysbus.h"
+
+#define TYPE_ASPEED_HACE "aspeed.hace"
+#define TYPE_ASPEED_AST2400_HACE TYPE_ASPEED_HACE "-ast2400"
+#define TYPE_ASPEED_AST2500_HACE TYPE_ASPEED_HACE "-ast2500"
+#define TYPE_ASPEED_AST2600_HACE TYPE_ASPEED_HACE "-ast2600"
+OBJECT_DECLARE_TYPE(AspeedHACEState, AspeedHACEClass, ASPEED_HACE)
+
+#define ASPEED_HACE_NR_REGS (0x64 >> 2)
+
+struct AspeedHACEState {
+    SysBusDevice parent;
+
+    MemoryRegion iomem;
+    qemu_irq irq;
+
+    uint32_t regs[ASPEED_HACE_NR_REGS];
+
+    MemoryRegion *dram_mr;
+    AddressSpace dram_as;
+};
+
+
+struct AspeedHACEClass {
+    SysBusDeviceClass parent_class;
+
+    uint32_t src_mask;
+    uint32_t dest_mask;
+    uint32_t hash_mask;
+};
+
+#endif /* _ASPEED_HACE_H_ */