virtio_mmio_blk.h

/*
 * This file is part of libqbox
 * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
 * Author: GreenSocs 2022
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
#pragma once
 
#include <vector>
 
#include <cci_configuration>
 
#include <device.h>
#include <ports/target.h>
#include <ports/qemu-initiator-signal-socket.h>
#include <virtio/virtio-mmio.h>
#include <qemu-instance.h>
#include <module_factory_registery.h>
 
class virtio_mmio_blk : public QemuVirtioMMIO
{
private:
    std::string blkdev_id;
    cci::cci_param<std::string> blkdev_str;
 
public:
    virtio_mmio_blk(const sc_core::sc_module_name& name, sc_core::sc_object* o)
        : virtio_mmio_blk(name, *(dynamic_cast<QemuInstance*>(o)))
    {
    }
    virtio_mmio_blk(sc_core::sc_module_name nm, QemuInstance& inst)
        : QemuVirtioMMIO(nm, inst, "virtio-blk-device")
        , blkdev_id(std::string(name()) + "-id")
        , blkdev_str("blkdev_str", "", "blkdev string for QEMU (do not specify ID)")
    {
        std::stringstream opts;
        opts << blkdev_str.get_value();
        opts << ",id=" << blkdev_id;
 
        m_inst.add_arg("-drive");
        m_inst.add_arg(opts.str().c_str());
    }
 
    void before_end_of_elaboration() override
    {
        QemuVirtioMMIO::before_end_of_elaboration();
 
        m_dev.set_prop_parse("drive", blkdev_id.c_str());
    }
};
 
extern "C" void module_register();