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, 161 insertions, 0 deletions

diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
new file mode 100644
index 000000000..63025fb27
--- /dev/null
+++ b/include/hw/arm/allwinner-h3.h
@@ -0,0 +1,161 @@
+/*
+ * Allwinner H3 System on Chip emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * 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/>.
+ */
+
+/*
+ * The Allwinner H3 is a System on Chip containing four ARM Cortex-A7
+ * processor cores. Features and specifications include DDR2/DDR3 memory,
+ * SD/MMC storage cards, 10/100/1000Mbit Ethernet, USB 2.0, HDMI and
+ * various I/O modules.
+ *
+ * This implementation is based on the following datasheet:
+ *
+ *   https://linux-sunxi.org/File:Allwinner_H3_Datasheet_V1.2.pdf
+ *
+ * The latest datasheet and more info can be found on the Linux Sunxi wiki:
+ *
+ *   https://linux-sunxi.org/H3
+ */
+
+#ifndef HW_ARM_ALLWINNER_H3_H
+#define HW_ARM_ALLWINNER_H3_H
+
+#include "qom/object.h"
+#include "hw/arm/boot.h"
+#include "hw/timer/allwinner-a10-pit.h"
+#include "hw/intc/arm_gic.h"
+#include "hw/misc/allwinner-h3-ccu.h"
+#include "hw/misc/allwinner-cpucfg.h"
+#include "hw/misc/allwinner-h3-dramc.h"
+#include "hw/misc/allwinner-h3-sysctrl.h"
+#include "hw/misc/allwinner-sid.h"
+#include "hw/sd/allwinner-sdhost.h"
+#include "hw/net/allwinner-sun8i-emac.h"
+#include "hw/rtc/allwinner-rtc.h"
+#include "target/arm/cpu.h"
+#include "sysemu/block-backend.h"
+
+/**
+ * Allwinner H3 device list
+ *
+ * This enumeration is can be used refer to a particular device in the
+ * Allwinner H3 SoC. For example, the physical memory base address for
+ * each device can be found in the AwH3State object in the memmap member
+ * using the device enum value as index.
+ *
+ * @see AwH3State
+ */
+enum {
+    AW_H3_DEV_SRAM_A1,
+    AW_H3_DEV_SRAM_A2,
+    AW_H3_DEV_SRAM_C,
+    AW_H3_DEV_SYSCTRL,
+    AW_H3_DEV_MMC0,
+    AW_H3_DEV_SID,
+    AW_H3_DEV_EHCI0,
+    AW_H3_DEV_OHCI0,
+    AW_H3_DEV_EHCI1,
+    AW_H3_DEV_OHCI1,
+    AW_H3_DEV_EHCI2,
+    AW_H3_DEV_OHCI2,
+    AW_H3_DEV_EHCI3,
+    AW_H3_DEV_OHCI3,
+    AW_H3_DEV_CCU,
+    AW_H3_DEV_PIT,
+    AW_H3_DEV_UART0,
+    AW_H3_DEV_UART1,
+    AW_H3_DEV_UART2,
+    AW_H3_DEV_UART3,
+    AW_H3_DEV_EMAC,
+    AW_H3_DEV_DRAMCOM,
+    AW_H3_DEV_DRAMCTL,
+    AW_H3_DEV_DRAMPHY,
+    AW_H3_DEV_GIC_DIST,
+    AW_H3_DEV_GIC_CPU,
+    AW_H3_DEV_GIC_HYP,
+    AW_H3_DEV_GIC_VCPU,
+    AW_H3_DEV_RTC,
+    AW_H3_DEV_CPUCFG,
+    AW_H3_DEV_SDRAM
+};
+
+/** Total number of CPU cores in the H3 SoC */
+#define AW_H3_NUM_CPUS      (4)
+
+/**
+ * Allwinner H3 object model
+ * @{
+ */
+
+/** Object type for the Allwinner H3 SoC */
+#define TYPE_AW_H3 "allwinner-h3"
+
+/** Convert input object to Allwinner H3 state object */
+OBJECT_DECLARE_SIMPLE_TYPE(AwH3State, AW_H3)
+
+/** @} */
+
+/**
+ * Allwinner H3 object
+ *
+ * This struct contains the state of all the devices
+ * which are currently emulated by the H3 SoC code.
+ */
+struct AwH3State {
+    /*< private >*/
+    DeviceState parent_obj;
+    /*< public >*/
+
+    ARMCPU cpus[AW_H3_NUM_CPUS];
+    const hwaddr *memmap;
+    AwA10PITState timer;
+    AwH3ClockCtlState ccu;
+    AwCpuCfgState cpucfg;
+    AwH3DramCtlState dramc;
+    AwH3SysCtrlState sysctrl;
+    AwSidState sid;
+    AwSdHostState mmc0;
+    AwSun8iEmacState emac;
+    AwRtcState rtc;
+    GICState gic;
+    MemoryRegion sram_a1;
+    MemoryRegion sram_a2;
+    MemoryRegion sram_c;
+};
+
+/**
+ * Emulate Boot ROM firmware setup functionality.
+ *
+ * A real Allwinner H3 SoC contains a Boot ROM
+ * which is the first code that runs right after
+ * the SoC is powered on. The Boot ROM is responsible
+ * for loading user code (e.g. a bootloader) from any
+ * of the supported external devices and writing the
+ * downloaded code to internal SRAM. After loading the SoC
+ * begins executing the code written to SRAM.
+ *
+ * This function emulates the Boot ROM by copying 32 KiB
+ * of data from the given block device and writes it to
+ * the start of the first internal SRAM memory.
+ *
+ * @s: Allwinner H3 state object pointer
+ * @blk: Block backend device object pointer
+ */
+void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk);
+
+#endif /* HW_ARM_ALLWINNER_H3_H */