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, 307 insertions, 0 deletions

diff --git a/accel/tcg/ldst_common.c.inc b/accel/tcg/ldst_common.c.inc
new file mode 100644
index 000000000..bfefb275e
--- /dev/null
+++ b/accel/tcg/ldst_common.c.inc
@@ -0,0 +1,307 @@
+/*
+ * Routines common to user and system emulation of load/store.
+ *
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+uint32_t cpu_ldub_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                            int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_UB, mmu_idx);
+    return cpu_ldb_mmu(env, addr, oi, ra);
+}
+
+int cpu_ldsb_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                       int mmu_idx, uintptr_t ra)
+{
+    return (int8_t)cpu_ldub_mmuidx_ra(env, addr, mmu_idx, ra);
+}
+
+uint32_t cpu_lduw_be_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                               int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_BEUW | MO_UNALN, mmu_idx);
+    return cpu_ldw_be_mmu(env, addr, oi, ra);
+}
+
+int cpu_ldsw_be_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                          int mmu_idx, uintptr_t ra)
+{
+    return (int16_t)cpu_lduw_be_mmuidx_ra(env, addr, mmu_idx, ra);
+}
+
+uint32_t cpu_ldl_be_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                              int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_BEUL | MO_UNALN, mmu_idx);
+    return cpu_ldl_be_mmu(env, addr, oi, ra);
+}
+
+uint64_t cpu_ldq_be_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                              int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_BEQ | MO_UNALN, mmu_idx);
+    return cpu_ldq_be_mmu(env, addr, oi, ra);
+}
+
+uint32_t cpu_lduw_le_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                               int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_LEUW | MO_UNALN, mmu_idx);
+    return cpu_ldw_le_mmu(env, addr, oi, ra);
+}
+
+int cpu_ldsw_le_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                          int mmu_idx, uintptr_t ra)
+{
+    return (int16_t)cpu_lduw_le_mmuidx_ra(env, addr, mmu_idx, ra);
+}
+
+uint32_t cpu_ldl_le_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                              int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_LEUL | MO_UNALN, mmu_idx);
+    return cpu_ldl_le_mmu(env, addr, oi, ra);
+}
+
+uint64_t cpu_ldq_le_mmuidx_ra(CPUArchState *env, abi_ptr addr,
+                              int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_LEQ | MO_UNALN, mmu_idx);
+    return cpu_ldq_le_mmu(env, addr, oi, ra);
+}
+
+void cpu_stb_mmuidx_ra(CPUArchState *env, abi_ptr addr, uint32_t val,
+                       int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_UB, mmu_idx);
+    cpu_stb_mmu(env, addr, val, oi, ra);
+}
+
+void cpu_stw_be_mmuidx_ra(CPUArchState *env, abi_ptr addr, uint32_t val,
+                          int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_BEUW | MO_UNALN, mmu_idx);
+    cpu_stw_be_mmu(env, addr, val, oi, ra);
+}
+
+void cpu_stl_be_mmuidx_ra(CPUArchState *env, abi_ptr addr, uint32_t val,
+                          int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_BEUL | MO_UNALN, mmu_idx);
+    cpu_stl_be_mmu(env, addr, val, oi, ra);
+}
+
+void cpu_stq_be_mmuidx_ra(CPUArchState *env, abi_ptr addr, uint64_t val,
+                          int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_BEQ | MO_UNALN, mmu_idx);
+    cpu_stq_be_mmu(env, addr, val, oi, ra);
+}
+
+void cpu_stw_le_mmuidx_ra(CPUArchState *env, abi_ptr addr, uint32_t val,
+                          int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_LEUW | MO_UNALN, mmu_idx);
+    cpu_stw_le_mmu(env, addr, val, oi, ra);
+}
+
+void cpu_stl_le_mmuidx_ra(CPUArchState *env, abi_ptr addr, uint32_t val,
+                          int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_LEUL | MO_UNALN, mmu_idx);
+    cpu_stl_le_mmu(env, addr, val, oi, ra);
+}
+
+void cpu_stq_le_mmuidx_ra(CPUArchState *env, abi_ptr addr, uint64_t val,
+                          int mmu_idx, uintptr_t ra)
+{
+    MemOpIdx oi = make_memop_idx(MO_LEQ | MO_UNALN, mmu_idx);
+    cpu_stq_le_mmu(env, addr, val, oi, ra);
+}
+
+/*--------------------------*/
+
+uint32_t cpu_ldub_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return cpu_ldub_mmuidx_ra(env, addr, cpu_mmu_index(env, false), ra);
+}
+
+int cpu_ldsb_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return (int8_t)cpu_ldub_data_ra(env, addr, ra);
+}
+
+uint32_t cpu_lduw_be_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return cpu_lduw_be_mmuidx_ra(env, addr, cpu_mmu_index(env, false), ra);
+}
+
+int cpu_ldsw_be_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return (int16_t)cpu_lduw_be_data_ra(env, addr, ra);
+}
+
+uint32_t cpu_ldl_be_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return cpu_ldl_be_mmuidx_ra(env, addr, cpu_mmu_index(env, false), ra);
+}
+
+uint64_t cpu_ldq_be_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return cpu_ldq_be_mmuidx_ra(env, addr, cpu_mmu_index(env, false), ra);
+}
+
+uint32_t cpu_lduw_le_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return cpu_lduw_le_mmuidx_ra(env, addr, cpu_mmu_index(env, false), ra);
+}
+
+int cpu_ldsw_le_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return (int16_t)cpu_lduw_le_data_ra(env, addr, ra);
+}
+
+uint32_t cpu_ldl_le_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return cpu_ldl_le_mmuidx_ra(env, addr, cpu_mmu_index(env, false), ra);
+}
+
+uint64_t cpu_ldq_le_data_ra(CPUArchState *env, abi_ptr addr, uintptr_t ra)
+{
+    return cpu_ldq_le_mmuidx_ra(env, addr, cpu_mmu_index(env, false), ra);
+}
+
+void cpu_stb_data_ra(CPUArchState *env, abi_ptr addr,
+                     uint32_t val, uintptr_t ra)
+{
+    cpu_stb_mmuidx_ra(env, addr, val, cpu_mmu_index(env, false), ra);
+}
+
+void cpu_stw_be_data_ra(CPUArchState *env, abi_ptr addr,
+                        uint32_t val, uintptr_t ra)
+{
+    cpu_stw_be_mmuidx_ra(env, addr, val, cpu_mmu_index(env, false), ra);
+}
+
+void cpu_stl_be_data_ra(CPUArchState *env, abi_ptr addr,
+                        uint32_t val, uintptr_t ra)
+{
+    cpu_stl_be_mmuidx_ra(env, addr, val, cpu_mmu_index(env, false), ra);
+}
+
+void cpu_stq_be_data_ra(CPUArchState *env, abi_ptr addr,
+                        uint64_t val, uintptr_t ra)
+{
+    cpu_stq_be_mmuidx_ra(env, addr, val, cpu_mmu_index(env, false), ra);
+}
+
+void cpu_stw_le_data_ra(CPUArchState *env, abi_ptr addr,
+                        uint32_t val, uintptr_t ra)
+{
+    cpu_stw_le_mmuidx_ra(env, addr, val, cpu_mmu_index(env, false), ra);
+}
+
+void cpu_stl_le_data_ra(CPUArchState *env, abi_ptr addr,
+                        uint32_t val, uintptr_t ra)
+{
+    cpu_stl_le_mmuidx_ra(env, addr, val, cpu_mmu_index(env, false), ra);
+}
+
+void cpu_stq_le_data_ra(CPUArchState *env, abi_ptr addr,
+                        uint64_t val, uintptr_t ra)
+{
+    cpu_stq_le_mmuidx_ra(env, addr, val, cpu_mmu_index(env, false), ra);
+}
+
+/*--------------------------*/
+
+uint32_t cpu_ldub_data(CPUArchState *env, abi_ptr addr)
+{
+    return cpu_ldub_data_ra(env, addr, 0);
+}
+
+int cpu_ldsb_data(CPUArchState *env, abi_ptr addr)
+{
+    return (int8_t)cpu_ldub_data(env, addr);
+}
+
+uint32_t cpu_lduw_be_data(CPUArchState *env, abi_ptr addr)
+{
+    return cpu_lduw_be_data_ra(env, addr, 0);
+}
+
+int cpu_ldsw_be_data(CPUArchState *env, abi_ptr addr)
+{
+    return (int16_t)cpu_lduw_be_data(env, addr);
+}
+
+uint32_t cpu_ldl_be_data(CPUArchState *env, abi_ptr addr)
+{
+    return cpu_ldl_be_data_ra(env, addr, 0);
+}
+
+uint64_t cpu_ldq_be_data(CPUArchState *env, abi_ptr addr)
+{
+    return cpu_ldq_be_data_ra(env, addr, 0);
+}
+
+uint32_t cpu_lduw_le_data(CPUArchState *env, abi_ptr addr)
+{
+    return cpu_lduw_le_data_ra(env, addr, 0);
+}
+
+int cpu_ldsw_le_data(CPUArchState *env, abi_ptr addr)
+{
+    return (int16_t)cpu_lduw_le_data(env, addr);
+}
+
+uint32_t cpu_ldl_le_data(CPUArchState *env, abi_ptr addr)
+{
+    return cpu_ldl_le_data_ra(env, addr, 0);
+}
+
+uint64_t cpu_ldq_le_data(CPUArchState *env, abi_ptr addr)
+{
+    return cpu_ldq_le_data_ra(env, addr, 0);
+}
+
+void cpu_stb_data(CPUArchState *env, abi_ptr addr, uint32_t val)
+{
+    cpu_stb_data_ra(env, addr, val, 0);
+}
+
+void cpu_stw_be_data(CPUArchState *env, abi_ptr addr, uint32_t val)
+{
+    cpu_stw_be_data_ra(env, addr, val, 0);
+}
+
+void cpu_stl_be_data(CPUArchState *env, abi_ptr addr, uint32_t val)
+{
+    cpu_stl_be_data_ra(env, addr, val, 0);
+}
+
+void cpu_stq_be_data(CPUArchState *env, abi_ptr addr, uint64_t val)
+{
+    cpu_stq_be_data_ra(env, addr, val, 0);
+}
+
+void cpu_stw_le_data(CPUArchState *env, abi_ptr addr, uint32_t val)
+{
+    cpu_stw_le_data_ra(env, addr, val, 0);
+}
+
+void cpu_stl_le_data(CPUArchState *env, abi_ptr addr, uint32_t val)
+{
+    cpu_stl_le_data_ra(env, addr, val, 0);
+}
+
+void cpu_stq_le_data(CPUArchState *env, abi_ptr addr, uint64_t val)
+{
+    cpu_stq_le_data_ra(env, addr, val, 0);
+}