debug_ring.h

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//
// Bareflank Hypervisor
//
// Copyright (C) 2015 Assured Information Security, Inc.
// Author: Rian Quinn        <quinnr@ainfosec.com>
// Author: Brendan Kerrigan  <kerriganb@ainfosec.com>
//
// 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, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

#ifndef DEBUG_RING_H
#define DEBUG_RING_H

#include <string>
#include <memory>

#include <vcpuid.h>
#include <debug_ring_interface.h>

class debug_ring
{
public:

    debug_ring(vcpuid::type vcpuid) noexcept;

    virtual ~debug_ring() noexcept = default;

    virtual void write(const std::string &str) noexcept;

private:

    vcpuid::type m_vcpuid;
    std::unique_ptr<debug_ring_resources_t> m_drr;
};

extern "C" int64_t get_drr(uint64_t vcpuid, struct debug_ring_resources_t **drr) noexcept;

#endif