74 lines
1.4 KiB
C++
74 lines
1.4 KiB
C++
/*
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* \brief Paravirtualized access to block devices for a Trustzone VM
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* \author Martin Stein
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* \date 2015-10-23
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*/
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/*
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* Copyright (C) 2015 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _TZ_VMM__INCLUDE__BLOCK_H_
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#define _TZ_VMM__INCLUDE__BLOCK_H_
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/* Genode includes */
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#include <vm_state.h>
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/* local includes */
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#include <vm_base.h>
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namespace Vmm { class Block; }
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/**
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* Paravirtualized access to block devices for a Trustzone VM
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*/
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class Vmm::Block
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{
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private:
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class Oversized_request : public Genode::Exception { };
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void * _buf;
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Genode::size_t _buf_size;
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void _buf_to_pkt(void * const dst, Genode::size_t const sz);
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void _name(Vm_base * const vm);
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void _block_count(Vm_base * const vm);
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void _block_size(Vm_base * const vm);
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void _queue_size(Vm_base * const vm);
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void _writeable(Vm_base * const vm);
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void _irq(Vm_base * const vm);
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void _buffer(Vm_base * const vm);
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void _start_callback(Vm_base * const vm);
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void _device_count(Vm_base * const vm);
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void _new_request(Vm_base * const vm);
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void _submit_request(Vm_base * const vm);
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void _collect_reply(Vm_base * const vm);
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public:
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/**
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* Handle Secure Monitor Call of VM 'vm' on VMM block
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*/
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void handle(Vm_base * const vm);
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Block() : _buf_size(0) { }
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};
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#endif /* _TZ_VMM__INCLUDE__BLOCK_H_ */
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