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nova: set pager and native ec cap for main thread

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Prerequisite for follow up commit regarding base-nova specific Genode Spinlock
replacement.

Issue #986
This commit is contained in:
Alexander Boettcher 2014-02-12 16:22:22 +01:00 committed by Christian Helmuth
parent ecaf09a41b
commit bfa3053e62
5 changed files with 29 additions and 11 deletions
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8
base-nova/include/nova/syscall-generic.h
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@ -362,8 +362,10 @@ namespace Nova {
enum {
RIGHT_EC_RECALL = 0x1U,
RIGHT_PT_CTRL = 0x1U,
RIGHT_PT_CALL = 0x2U
RIGHT_PT_CALL = 0x1U,
RIGHT_PT_CTRL = 0x2U,
RIGHT_SM_UP = 0x1U,
RIGHT_SM_DOWN = 0x2U
};
Obj_crd() : Crd(0, 0)
@ -575,6 +577,8 @@ namespace Nova {
enum {
PT_SEL_PAGE_FAULT = 0xe,
PT_SEL_PARENT = 0x1a, /* convention on Genode */
PT_SEL_MAIN_PAGER = 0x1b, /* convention on Genode */
PT_SEL_MAIN_EC = 0x1c, /* convention on Genode */
PT_SEL_STARTUP = 0x1e,
PT_SEL_RECALL = 0x1f,
SM_SEL_EC = 0x1d, /* convention on Genode */

4
base-nova/include/nova/util.h
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@ -56,8 +56,8 @@ inline void request_event_portal(Genode::Native_capability const &cap,
inline void request_native_ec_cap(Genode::Native_capability const &cap,
Genode::addr_t sel) {
request_event_portal(cap, sel , ~0UL, 1); }
Genode::addr_t sel, unsigned pager_cap = 1) {
request_event_portal(cap, sel , ~0UL, pager_cap); }
inline void request_signal_sm_cap(Genode::Native_capability const &cap,

4
base-nova/src/base/pager/pager.cc
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@ -224,7 +224,9 @@ void Pager_object::_invoke_handler()
*/
bool res = utcb->append_item(Obj_crd(obj->_state.sel_client_ec, 0,
Obj_crd::RIGHT_EC_RECALL), 0);
res = utcb->append_item(Obj_crd(obj->Object_pool<Pager_object>::Entry::cap().local_name(), 0), 1);
/* if logcount > 0 then the pager cap should also be mapped */
if (logcount)
res = utcb->append_item(Obj_crd(obj->Object_pool<Pager_object>::Entry::cap().local_name(), 0), 1);
(void)res;
reply(myself->stack_top());

8
base-nova/src/base/thread/thread_nova.cc
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@ -79,7 +79,15 @@ void Thread_base::_init_platform_thread(Type type)
/* for main threads the member initialization differs */
if (type == MAIN || type == REINITIALIZED_MAIN) {
_thread_cap = env()->parent()->main_thread_cap();
Genode::Native_capability pager_cap(Nova::PT_SEL_MAIN_PAGER);
_pager_cap = reinterpret_cap_cast<Pager_object>(pager_cap);
_tid.exc_pt_sel = 0;
_tid.ec_sel = Nova::PT_SEL_MAIN_EC;
enum { DONT_MAP_PAGER_CAP = 0 };
request_native_ec_cap(_pager_cap, _tid.ec_sel, DONT_MAP_PAGER_CAP);
return;
}

16
base-nova/src/core/platform_thread.cc
View File

@ -108,8 +108,9 @@ int Platform_thread::start(void *ip, void *sp)
pd_utcb = Native_config::context_area_virtual_base() +
Native_config::context_virtual_size() - get_page_size();
addr_t remap_src[] = { _pd->parent_pt_sel() };
addr_t remap_dst[] = { PT_SEL_PARENT };
addr_t remap_src[] = { _pd->parent_pt_sel(),
_pager->Object_pool<Pager_object>::Entry::cap().local_name() };
addr_t remap_dst[] = { PT_SEL_PARENT, PT_SEL_MAIN_PAGER };
/* remap exception portals for first thread */
for (unsigned i = 0; i < sizeof(remap_dst)/sizeof(remap_dst[0]); i++) {
@ -120,11 +121,14 @@ int Platform_thread::start(void *ip, void *sp)
}
}
addr_t pd_sel = cap_map()->insert();
/* create task */
Obj_crd initial_pts(_sel_exc_base, is_vcpu() ?
NUM_INITIAL_VCPU_PT_LOG2 : NUM_INITIAL_PT_LOG2);
addr_t const pd_sel = cap_map()->insert();
addr_t const rights = Obj_crd::RIGHT_EC_RECALL |
Obj_crd::RIGHT_PT_CTRL | Obj_crd::RIGHT_PT_CALL |
Obj_crd::RIGHT_SM_UP | Obj_crd::RIGHT_SM_DOWN;
unsigned pts = is_vcpu() ? NUM_INITIAL_VCPU_PT_LOG2 : NUM_INITIAL_PT_LOG2;
Obj_crd initial_pts(_sel_exc_base, pts, rights);
uint8_t res = create_pd(pd_sel, pd_core_sel, initial_pts);
if (res != NOVA_OK) {
PERR("create_pd returned %d", res);