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nova: create pager/server thread on specific cpus 

issue #814
This commit is contained in:
Alexander Boettcher 2013-07-08 09:06:26 +02:00 committed by Norman Feske
parent 4ae1faf14d
commit 4e2e79bf4f
4 changed files with 17 additions and 7 deletions
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2
base-nova/src/base/pager/pager.cc
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@ -275,6 +275,8 @@ Pager_object::Pager_object(unsigned long badge, unsigned affinity)
_state.singlestep = false; _state.singlestep = false;
_state.sel_client_ec = Native_thread::INVALID_INDEX; _state.sel_client_ec = Native_thread::INVALID_INDEX;
/* tell thread starting code on which CPU to let run the pager */
*reinterpret_cast<addr_t *>(stack_top()) = affinity;
/* creates local EC */ /* creates local EC */
Thread_base::start(); Thread_base::start();

7
base-nova/src/base/server/server.cc
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@ -252,11 +252,16 @@ Rpc_entrypoint::Rpc_entrypoint(Cap_session *cap_session, size_t stack_size,
throw Cpu_session::Thread_creation_failed(); throw Cpu_session::Thread_creation_failed();
_tid.ec_sel = ec_cap.local_name(); _tid.ec_sel = ec_cap.local_name();
} }
else else {
enum { CPU_NO = 0 }; //XXX find out the boot cpu
/* tell thread starting code on which CPU to let run the server thread */
*reinterpret_cast<addr_t *>(stack_top()) = CPU_NO;
/* /*
* Required for core threads (creates local EC) * Required for core threads (creates local EC)
*/ */
Thread_base::start(); Thread_base::start();
}
/* create cleanup portal */ /* create cleanup portal */
_cap = _cap_session->alloc(Native_capability(_tid.ec_sel), _cap = _cap_session->alloc(Native_capability(_tid.ec_sel),

1
base-nova/src/base/thread/thread_nova.cc
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@ -121,6 +121,7 @@ void Thread_base::start()
/* create EC at core */ /* create EC at core */
addr_t thread_sp = reinterpret_cast<addr_t>(&_context->stack[-4]); addr_t thread_sp = reinterpret_cast<addr_t>(&_context->stack[-4]);
thread_sp &= ~0xf; /* align initial stack to 16 byte boundary */
Thread_state state; Thread_state state;
state.sel_exc_base = _tid.exc_pt_sel; state.sel_exc_base = _tid.exc_pt_sel;

14
base-nova/src/core/thread_start.cc
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@ -77,15 +77,17 @@ void Thread_base::start()
*/ */
using namespace Nova; using namespace Nova;
addr_t sp = reinterpret_cast<addr_t>(&_context->stack[-4]); addr_t sp = reinterpret_cast<addr_t>(&_context->stack[-4]);
addr_t utcb = reinterpret_cast<addr_t>(&_context->utcb); sp &= ~0xf; /* align initial stack to 16 byte boundary */
addr_t utcb = reinterpret_cast<addr_t>(&_context->utcb);
Utcb * utcb_obj = reinterpret_cast<Utcb *>(&_context->utcb); Utcb * utcb_obj = reinterpret_cast<Utcb *>(&_context->utcb);
addr_t pd_sel = Platform_pd::pd_core_sel(); addr_t pd_sel = Platform_pd::pd_core_sel();
addr_t cpu_no = *reinterpret_cast<addr_t *>(stack_top());
/* create local EC */ /* create local EC */
enum { CPU_NO = 0, GLOBAL = false }; enum { LOCAL_THREAD = false };
uint8_t res = create_ec(_tid.ec_sel, pd_sel, CPU_NO, uint8_t res = create_ec(_tid.ec_sel, pd_sel, cpu_no,
utcb, sp, _tid.exc_pt_sel, GLOBAL); utcb, sp, _tid.exc_pt_sel, LOCAL_THREAD);
if (res != NOVA_OK) { if (res != NOVA_OK) {
PERR("create_ec returned %d", res); PERR("create_ec returned %d", res);
throw Cpu_session::Thread_creation_failed(); throw Cpu_session::Thread_creation_failed();