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, 47 insertions, 0 deletions

diff --git a/include/hw/timer/mips_gictimer.h b/include/hw/timer/mips_gictimer.h
new file mode 100644
index 000000000..c7ca6c821
--- /dev/null
+++ b/include/hw/timer/mips_gictimer.h
@@ -0,0 +1,47 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2016 Imagination Technologies
+ *
+ */
+
+#ifndef MIPS_GICTIMER_H
+#define MIPS_GICTIMER_H
+
+typedef struct MIPSGICTimerVPState MIPSGICTimerVPState;
+typedef struct MIPSGICTimerState MIPSGICTimerState;
+
+typedef void MIPSGICTimerCB(void *opaque, uint32_t vp_index);
+
+struct MIPSGICTimerVPState {
+    QEMUTimer *qtimer;
+    uint32_t vp_index;
+    uint32_t comparelo;
+    MIPSGICTimerState *gictimer;
+};
+
+struct MIPSGICTimerState {
+    void *opaque;
+    uint8_t countstop;
+    uint32_t sh_counterlo;
+    int32_t num_vps;
+    MIPSGICTimerVPState *vptimers;
+    MIPSGICTimerCB *cb;
+};
+
+uint32_t mips_gictimer_get_freq(MIPSGICTimerState *gic);
+uint32_t mips_gictimer_get_sh_count(MIPSGICTimerState *gic);
+void mips_gictimer_store_sh_count(MIPSGICTimerState *gic, uint64_t count);
+uint32_t mips_gictimer_get_vp_compare(MIPSGICTimerState *gictimer,
+                                      uint32_t vp_index);
+void mips_gictimer_store_vp_compare(MIPSGICTimerState *gic, uint32_t vp_index,
+                                    uint64_t compare);
+uint8_t mips_gictimer_get_countstop(MIPSGICTimerState *gic);
+void mips_gictimer_start_count(MIPSGICTimerState *gic);
+void mips_gictimer_stop_count(MIPSGICTimerState *gic);
+MIPSGICTimerState *mips_gictimer_init(void *opaque, uint32_t nvps,
+                                      MIPSGICTimerCB *cb);
+
+#endif /* MIPS_GICTIMER_H */