21de42c45d
The new core-internal 'Address_space' interface enables cores RM service to flush mappings of a PD in which a given 'Rm_client' thread resides. Prior this patch, each platform invented their own way to flush mappings in the respective 'rm_session_support.cc' implementation. However, those implementations used to deal poorly with some corner cases. In particular, if a PD session was destroyed prior a RM session, the RM session would try to use no longer existing PD session. The new 'Address_space' uses the just added weak-pointer mechanism to deal with this issue. Furthermore, the generic 'Rm_session_component::detach' function has been improved to avoid duplicated unmap operations for platforms that implement the 'Address_space' interface. Therefore, it is related to issue #595. Right now, this is OKL4 only, but other platforms will follow.
30 lines
648 B
C++
30 lines
648 B
C++
/*
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* \brief OKL4-specific part of RM-session implementation
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* \author Norman Feske
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* \date 2009-04-10
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*/
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/*
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* Copyright (C) 2009-2013 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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/* Genode includes */
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#include <base/printf.h>
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/* core includes */
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#include <rm_session_component.h>
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using namespace Genode;
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void Rm_client::unmap(addr_t, addr_t virt_base, size_t size)
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{
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Locked_ptr<Address_space> locked_address_space(_address_space);
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if (locked_address_space.is_valid())
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locked_address_space->flush(virt_base, size);
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}
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