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, 70 insertions, 0 deletions

diff --git a/tests/qtest/libqos/sdhci.h b/tests/qtest/libqos/sdhci.h
new file mode 100644
index 000000000..22d647b1f
--- /dev/null
+++ b/tests/qtest/libqos/sdhci.h
@@ -0,0 +1,70 @@
+/*
+ * libqos driver framework
+ *
+ * Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+
+#ifndef QGRAPH_QSDHCI_H
+#define QGRAPH_QSDHCI_H
+
+#include "qgraph.h"
+#include "pci.h"
+
+typedef struct QSDHCI QSDHCI;
+typedef struct QSDHCI_MemoryMapped QSDHCI_MemoryMapped;
+typedef struct QSDHCI_PCI  QSDHCI_PCI;
+typedef struct QSDHCIProperties QSDHCIProperties;
+
+/* Properties common to all QSDHCI devices */
+struct QSDHCIProperties {
+    uint8_t version;
+    uint8_t baseclock;
+    struct {
+        bool sdma;
+        uint64_t reg;
+    } capab;
+};
+
+struct QSDHCI {
+    uint16_t (*readw)(QSDHCI *s, uint32_t reg);
+    uint64_t (*readq)(QSDHCI *s, uint32_t reg);
+    void (*writeq)(QSDHCI *s, uint32_t reg, uint64_t val);
+    QSDHCIProperties props;
+};
+
+/* Memory Mapped implementation of QSDHCI */
+struct QSDHCI_MemoryMapped {
+    QOSGraphObject obj;
+    QTestState *qts;
+    QSDHCI sdhci;
+    uint64_t addr;
+};
+
+/* PCI implementation of QSDHCI */
+struct QSDHCI_PCI {
+    QOSGraphObject obj;
+    QPCIDevice dev;
+    QSDHCI sdhci;
+    QPCIBar mem_bar;
+};
+
+/**
+ * qos_init_sdhci_mm(): external constructor used by all drivers/machines
+ * that "contain" a #QSDHCI_MemoryMapped driver
+ */
+void qos_init_sdhci_mm(QSDHCI_MemoryMapped *sdhci, QTestState *qts,
+                       uint32_t addr, QSDHCIProperties *common);
+
+#endif