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, 30 insertions, 0 deletions

diff --git a/linux-user/sh4/target_syscall.h b/linux-user/sh4/target_syscall.h
new file mode 100644
index 000000000..c1437adaf
--- /dev/null
+++ b/linux-user/sh4/target_syscall.h
@@ -0,0 +1,30 @@
+#ifndef SH4_TARGET_SYSCALL_H
+#define SH4_TARGET_SYSCALL_H
+
+struct target_pt_regs {
+        unsigned long regs[16];
+        unsigned long pc;
+        unsigned long pr;
+        unsigned long sr;
+        unsigned long gbr;
+        unsigned long mach;
+        unsigned long macl;
+        long tra;
+};
+
+#define UNAME_MACHINE "sh4"
+#define UNAME_MINIMUM_RELEASE "2.6.32"
+
+#define TARGET_MINSIGSTKSZ 2048
+#define TARGET_MCL_CURRENT 1
+#define TARGET_MCL_FUTURE  2
+#define TARGET_MCL_ONFAULT 4
+
+#define TARGET_FORCE_SHMLBA
+
+static inline abi_ulong target_shmlba(CPUSH4State *env)
+{
+    return 0x4000;
+}
+
+#endif /* SH4_TARGET_SYSCALL_H */