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device file mappings: communicate map flags and fault missing translations

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Balazs Gerofi
2016-06-24 12:42:47 -07:00
parent dd37443fc7
commit 648bacc90f
7 changed files with 84 additions and 24 deletions
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12
kernel/process.c
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@ -1641,6 +1641,18 @@ static int do_page_fault_process_vm(struct process_vm *vm, void *fault_addr0, ui
"access denied. %d\n",
ihk_mc_get_processor_id(), vm,
fault_addr0, reason, error);
kprintf("%s: reason: %s%s%s%s%s%s%s%s\n", __FUNCTION__,
(reason & PF_PROT) ? "PF_PROT " : "",
(reason & PF_WRITE) ? "PF_WRITE " : "",
(reason & PF_USER) ? "PF_USER " : "",
(reason & PF_RSVD) ? "PF_RSVD " : "",
(reason & PF_INSTR) ? "PF_INSTR " : "",
(reason & PF_PATCH) ? "PF_PATCH " : "",
(reason & PF_POPULATE) ? "PF_POPULATE " : "");
kprintf("%s: range->flag & (%s%s%s)\n", __FUNCTION__,
(range->flag & VR_PROT_READ) ? "VR_PROT_READ " : "",
(range->flag & VR_PROT_WRITE) ? "VR_PROT_WRITE " : "",
(range->flag & VR_PROT_EXEC) ? "VR_PROT_EXEC " : "");
if (((range->flag & VR_PROT_MASK) == VR_PROT_NONE))
kprintf("if (((range->flag & VR_PROT_MASK) == VR_PROT_NONE))\n");
if (((reason & PF_WRITE) && !(reason & PF_PATCH)))