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b49e588c1c
This patch replaces the former 'Pd_session::bind_thread' function by a PD-capability argument of the 'Cpu_session::create_thread' function, and removes the ancient thread-start protocol via 'Rm_session::add_client' and 'Cpu_session::set_pager'. Threads are now bound to PDs at their creation time and implicitly paged according to the address space of the PD. Note the API change: This patch changes the signature of the 'Child' and 'Process' constructors. There is a new 'address_space' argument, which represents the region map representing the child's address space. It is supplied separately to the PD session capability (which principally can be invoked to obtain the PD's address space) to allow the population of the address space without relying on an 'Pd_session::address_space' RPC call. Furthermore, a new (optional) env_pd argument allows the explicit overriding of the PD capability handed out to the child as part of its environment. It can be used to intercept the interaction of the child with its PD session at core. This is used by Noux. Issue #1938
45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
/*
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* \brief Kernel-specific thread meta data
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* \author Norman Feske
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* \date 2016-03-11
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*
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* On most platforms, the 'Genode::Native_thread' type is private to the
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* base framework. However, on NOVA, we make the type publicly available to
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* expose the low-level thread-specific capability selectors to user-level
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* virtual-machine monitors (Seoul or VirtualBox).
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*/
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/*
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* Copyright (C) 2016 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 _INCLUDE__NOVA__NATIVE_THREAD_H_
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#define _INCLUDE__NOVA__NATIVE_THREAD_H_
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#include <base/stdint.h>
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#include <nova/receive_window.h>
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namespace Genode { struct Native_thread; }
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struct Genode::Native_thread
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{
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enum { INVALID_INDEX = ~0UL };
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addr_t ec_sel; /* selector for execution context */
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addr_t exc_pt_sel; /* base of event portal window */
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bool is_vcpu;
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/* receive window for capability selectors received at the server side */
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Receive_window rcv_window;
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Native_capability pager_cap;
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Native_thread() : ec_sel(INVALID_INDEX),
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exc_pt_sel(INVALID_INDEX), is_vcpu(false) { }
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};
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#endif /* _INCLUDE__NOVA__NATIVE_THREAD_H_ */
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