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, 94 insertions, 0 deletions

diff --git a/include/hw/acpi/ich9.h b/include/hw/acpi/ich9.h
new file mode 100644
index 000000000..7ca92843c
--- /dev/null
+++ b/include/hw/acpi/ich9.h
@@ -0,0 +1,94 @@
+/*
+ * QEMU GMCH/ICH9 LPC PM Emulation
+ *
+ *  Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
+ *                     VA Linux Systems Japan K.K.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * 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 HW_ACPI_ICH9_H
+#define HW_ACPI_ICH9_H
+
+#include "hw/acpi/acpi.h"
+#include "hw/acpi/cpu_hotplug.h"
+#include "hw/acpi/cpu.h"
+#include "hw/acpi/pcihp.h"
+#include "hw/acpi/memory_hotplug.h"
+#include "hw/acpi/acpi_dev_interface.h"
+#include "hw/acpi/tco.h"
+
+#define ACPI_PCIHP_ADDR_ICH9 0x0cc0
+
+typedef struct ICH9LPCPMRegs {
+    /*
+     * In ich9 spec says that pm1_cnt register is 32bit width and
+     * that the upper 16bits are reserved and unused.
+     * PM1a_CNT_BLK = 2 in FADT so it is defined as uint16_t.
+     */
+    ACPIREGS acpi_regs;
+
+    MemoryRegion io;
+    MemoryRegion io_gpe;
+    MemoryRegion io_smi;
+
+    uint32_t smi_en;
+    uint32_t smi_en_wmask;
+    uint32_t smi_sts;
+
+    qemu_irq irq;      /* SCI */
+
+    uint32_t pm_io_base;
+    Notifier powerdown_notifier;
+
+    bool cpu_hotplug_legacy;
+    AcpiCpuHotplug gpe_cpu;
+    CPUHotplugState cpuhp_state;
+
+    bool keep_pci_slot_hpc;
+    bool use_acpi_hotplug_bridge;
+    AcpiPciHpState acpi_pci_hotplug;
+    MemHotplugState acpi_memory_hotplug;
+
+    uint8_t disable_s3;
+    uint8_t disable_s4;
+    uint8_t s4_val;
+    uint8_t smm_enabled;
+    bool smm_compat;
+    bool enable_tco;
+    TCOIORegs tco_regs;
+} ICH9LPCPMRegs;
+
+#define ACPI_PM_PROP_TCO_ENABLED "enable_tco"
+
+void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
+                  bool smm_enabled,
+                  qemu_irq sci_irq);
+
+void ich9_pm_iospace_update(ICH9LPCPMRegs *pm, uint32_t pm_io_base);
+extern const VMStateDescription vmstate_ich9_pm;
+
+void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm);
+
+void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
+                                Error **errp);
+void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
+                            Error **errp);
+void ich9_pm_device_unplug_request_cb(HotplugHandler *hotplug_dev,
+                                      DeviceState *dev, Error **errp);
+void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
+                              Error **errp);
+
+void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list);
+#endif /* HW_ACPI_ICH9_H */