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Assign threads to PD at its creation time

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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
This commit is contained in:
Norman Feske
2016-04-20 21:12:57 +02:00
committed by Christian Helmuth
parent 2bc8a0f76a
commit b49e588c1c
140 changed files with 1112 additions and 1221 deletions
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6
repos/base-linux/src/lib/lx_hybrid/lx_hybrid.cc
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@ -452,7 +452,7 @@ Native_thread &Thread_base::native_thread() { return *_native_thread; }
Thread_base::Thread_base(size_t weight, const char *name, size_t stack_size,
Type type, Cpu_session * cpu_sess)
Type type, Cpu_session * cpu_sess, Affinity::Location)
: _cpu_session(cpu_sess)
{
Native_thread::Meta_data *meta_data =
@ -470,7 +470,7 @@ Thread_base::Thread_base(size_t weight, const char *name, size_t stack_size,
native_thread().meta_data->wait_for_construction();
_thread_cap = _cpu_session->create_thread(weight, name);
_thread_cap = _cpu_session->create_thread(env()->pd_session_cap(), weight, name);
Linux_native_cpu_client native_cpu(_cpu_session->native_cpu());
native_cpu.thread_id(_thread_cap, native_thread().pid, native_thread().tid);
@ -478,7 +478,7 @@ Thread_base::Thread_base(size_t weight, const char *name, size_t stack_size,
Thread_base::Thread_base(size_t weight, const char *name, size_t stack_size,
Type type)
Type type, Affinity::Location)
: Thread_base(weight, name, stack_size, type, env()->cpu_session()) { }
void Thread_base::cancel_blocking()