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, 69 insertions, 0 deletions

diff --git a/bsd-user/mips/target_arch_sysarch.h b/bsd-user/mips/target_arch_sysarch.h
new file mode 100644
index 000000000..6da803a40
--- /dev/null
+++ b/bsd-user/mips/target_arch_sysarch.h
@@ -0,0 +1,69 @@
+/*
+ *  mips sysarch() system call emulation
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that 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 BSD_USER_ARCH_SYSARCH_H_
+#define BSD_USER_ARCH_SYSARCH_H_
+
+#include "target_syscall.h"
+#include "target_arch.h"
+
+static inline abi_long do_freebsd_arch_sysarch(CPUMIPSState *env, int op,
+        abi_ulong parms)
+{
+    int ret = 0;
+
+    switch (op) {
+    case TARGET_MIPS_SET_TLS:
+        target_cpu_set_tls(env, parms);
+        break;
+
+    case TARGET_MIPS_GET_TLS:
+        if (put_user(target_cpu_get_tls(env), parms, abi_ulong)) {
+            ret = -TARGET_EFAULT;
+        }
+        break;
+
+    default:
+        ret = -TARGET_EINVAL;
+        break;
+    }
+
+    return ret;
+}
+
+static inline void do_freebsd_arch_print_sysarch(
+        const struct syscallname *name, abi_long arg1, abi_long arg2,
+        abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6)
+{
+
+    switch (arg1) {
+    case TARGET_MIPS_SET_TLS:
+        gemu_log("%s(SET_TLS, 0x" TARGET_ABI_FMT_lx ")", name->name, arg2);
+        break;
+
+    case TARGET_MIPS_GET_TLS:
+        gemu_log("%s(GET_TLS, 0x" TARGET_ABI_FMT_lx ")", name->name, arg2);
+        break;
+
+    default:
+        gemu_log("UNKNOWN OP: %d, " TARGET_ABI_FMT_lx ")", (int)arg1, arg2);
+    }
+}
+
+#endif /*!BSD_USER_ARCH_SYSARCH_H_ */