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45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
#ifndef __FAULT_H__
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#define __FAULT_H__
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#include <l4/macros.h>
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#include <l4/types.h>
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#include INC_GLUE(memory.h)
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#include INC_ARCH(exception.h)
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/* Protection flags */
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#define VM_NONE (1 << 0)
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#define VM_READ (1 << 1)
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#define VM_EXEC (1 << 2)
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#define VM_WRITE (1 << 3)
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#define VM_PROT_MASK (VM_READ | VM_WRITE | VM_EXEC)
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/* Shared copy of a file */
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#define VMA_SHARED (1 << 4)
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/* VMA that's not file-backed, always maps devzero as VMA_COW */
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#define VMA_ANONYMOUS (1 << 5)
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/* Private copy of a file */
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#define VMA_PRIVATE (1 << 6)
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/* For wired pages */
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#define VMA_FIXED (1 << 7)
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/* For stack, where mmap returns end address */
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#define VMA_GROWSDOWN (1 << 8)
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/* Set when the page is dirty in cache but not written to disk */
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#define VM_DIRTY (1 << 9)
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/* Fault data specific to this task + ptr to kernel's data */
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struct fault_data {
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fault_kdata_t *kdata; /* Generic data forged by the kernel */
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unsigned int reason; /* Generic fault reason flags */
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unsigned int address; /* Aborted address */
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unsigned int pte_flags; /* Generic protection flags on pte */
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l4id_t sender; /* Inittask-related fault data */
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};
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void set_generic_fault_params(struct fault_data *fault);
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void arch_print_fault_params(struct fault_data *fault);
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void fault_handle_error(struct fault_data *fault);
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#endif /* __FAULT_H__ */
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