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, 37 insertions, 0 deletions

diff --git a/target/arm/cpu-param.h b/target/arm/cpu-param.h
new file mode 100644
index 000000000..7f38d33b8
--- /dev/null
+++ b/target/arm/cpu-param.h
@@ -0,0 +1,37 @@
+/*
+ * ARM cpu parameters for qemu.
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ * SPDX-License-Identifier: LGPL-2.0+
+ */
+
+#ifndef ARM_CPU_PARAM_H
+#define ARM_CPU_PARAM_H 1
+
+#ifdef TARGET_AARCH64
+# define TARGET_LONG_BITS             64
+# define TARGET_PHYS_ADDR_SPACE_BITS  48
+# define TARGET_VIRT_ADDR_SPACE_BITS  48
+#else
+# define TARGET_LONG_BITS             32
+# define TARGET_PHYS_ADDR_SPACE_BITS  40
+# define TARGET_VIRT_ADDR_SPACE_BITS  32
+#endif
+
+#ifdef CONFIG_USER_ONLY
+#define TARGET_PAGE_BITS 12
+# ifdef TARGET_AARCH64
+#  define TARGET_TAGGED_ADDRESSES
+# endif
+#else
+/*
+ * ARMv7 and later CPUs have 4K pages minimum, but ARMv5 and v6
+ * have to support 1K tiny pages.
+ */
+# define TARGET_PAGE_BITS_VARY
+# define TARGET_PAGE_BITS_MIN  10
+#endif
+
+#define NB_MMU_MODES 15
+
+#endif