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/ppc/cpu-param.h b/target/ppc/cpu-param.h
new file mode 100644
index 000000000..37b458d33
--- /dev/null
+++ b/target/ppc/cpu-param.h
@@ -0,0 +1,37 @@
+/*
+ * PowerPC cpu parameters for qemu.
+ *
+ * Copyright (c) 2007 Jocelyn Mayer
+ * SPDX-License-Identifier: LGPL-2.0+
+ */
+
+#ifndef PPC_CPU_PARAM_H
+#define PPC_CPU_PARAM_H 1
+
+#ifdef TARGET_PPC64
+# define TARGET_LONG_BITS 64
+/*
+ * Note that the official physical address space bits is 62-M where M
+ * is implementation dependent.  I've not looked up M for the set of
+ * cpus we emulate at the system level.
+ */
+#define TARGET_PHYS_ADDR_SPACE_BITS 62
+/*
+ * Note that the PPC environment architecture talks about 80 bit virtual
+ * addresses, with segmentation.  Obviously that's not all visible to a
+ * single process, which is all we're concerned with here.
+ */
+# ifdef TARGET_ABI32
+#  define TARGET_VIRT_ADDR_SPACE_BITS 32
+# else
+#  define TARGET_VIRT_ADDR_SPACE_BITS 64
+# endif
+#else
+# define TARGET_LONG_BITS 32
+# define TARGET_PHYS_ADDR_SPACE_BITS 36
+# define TARGET_VIRT_ADDR_SPACE_BITS 32
+#endif
+#define TARGET_PAGE_BITS 12
+#define NB_MMU_MODES 10
+
+#endif