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Prefaulting of utcb pages seem to work.

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Next: fs0 should shmat() on others' utcbs.
This commit is contained in:
Bahadir Balban
2008-03-22 15:57:20 +00:00
parent 0dfbde6bc0
commit 82a7228d89
9 changed files with 211 additions and 78 deletions
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8
tasks/mm0/src/arch-arm/mm.c
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@@ -26,7 +26,7 @@ unsigned int vm_prot_flags(pte_t pte)
}
#if defined(DEBUG_FAULT_HANDLING)
void print_fault_params(struct fault_data *fault)
void arch_print_fault_params(struct fault_data *fault)
{
printf("%s: Handling %s fault (%s abort) from %d. fault @ 0x%x\n",
__TASKNAME__, (fault->reason & VM_READ) ? "read" : "write",
@@ -34,7 +34,7 @@ void print_fault_params(struct fault_data *fault)
fault->task->tid, fault->address);
}
#else
void print_fault_params(struct fault_data *fault) { }
void arch_print_fault_params(struct fault_data *fault) { }
#endif
@@ -49,7 +49,9 @@ void print_fault_params(struct fault_data *fault) { }
void set_generic_fault_params(struct fault_data *fault)
{
unsigned int prot_flags = vm_prot_flags(fault->kdata->pte);
fault->reason = 0;
fault->pte_flags = prot_flags;
if (is_prefetch_abort(fault->kdata->fsr)) {
fault->reason |= VM_READ;
@@ -65,6 +67,6 @@ void set_generic_fault_params(struct fault_data *fault)
else
BUG();
}
print_fault_params(fault);
arch_print_fault_params(fault);
}