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Implement VM #63

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td1223 merged 94 commits from vm/merged/themis into master 2024-12-06 05:07:14 +00:00
Conversation 1 Commits 94 Files Changed 150 +256 -868
28 changed files with 256 additions and 868 deletions
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src/userprog/exception.c
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@@ -145,6 +145,14 @@ page_fault (struct intr_frame *f)
write = (f->error_code & PF_W) != 0; write = (f->error_code & PF_W) != 0;
user = (f->error_code & PF_U) != 0; user = (f->error_code & PF_U) != 0;
/* Kernel page fault is further handled by the kernel itself. */
if (!user)
{
f->eip = (void *)f->eax;
f->eax = 0xffffffff;
return;
}
/* To implement virtual memory, delete the rest of the function /* To implement virtual memory, delete the rest of the function
body, and replace it with code that brings in the page to body, and replace it with code that brings in the page to
which fault_addr refers. */ which fault_addr refers. */