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Fixed invlpg instruction in create_address_space()

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ngiddings
2021-04-12 02:21:29 -05:00
parent 5006addfb5
commit e2562c9a4e
1 changed files with 5 additions and 5 deletions
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10
src/x86/mmgr.c
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@@ -47,14 +47,14 @@ physaddr_t create_address_space(struct page_stack_t *page_stack)
return S_OUT_OF_MEMORY; return S_OUT_OF_MEMORY;
} }
struct page_table_entry_t buffer = page_directory[0]; struct page_table_entry_t buffer = page_directory[0];
page_directory[0] = table; page_directory[0].physicalAddress = table >> page_bits;
asm volatile("invlpg $0xFFC00000" :: asm volatile("invlpg 0xFFC00000" ::
: "memory"); : "memory");
memset((void *)page_tables, 0, 1022 * 4); memset((void *)page_tables, 0, 1022 * 4);
page_tables[1022] = page_directory[1022]; page_tables[1022] = page_directory[1022];
page_tables[1023] = page_directory[1023]; page_tables[1023] = page_directory[1023];
page_directory[0] = buffer; page_directory[0] = buffer;
asm volatile("invlpg $0xFFC00000" :: asm volatile("invlpg 0xFFC00000" ::
: "memory"); : "memory");
return table; return table;
} }
@@ -82,12 +82,12 @@ int map_page(struct page_stack_t *page_stack, void *page, physaddr_t frame, int
{ {
return S_OUT_OF_MEMORY; return S_OUT_OF_MEMORY;
} }
page_directory[directory_index] = new_table >> page_bits; page_directory[directory_index].physicalAddress = new_table >> page_bits;
page_directory[directory_index].present = 1; page_directory[directory_index].present = 1;
page_directory[directory_index].usermode = 0; page_directory[directory_index].usermode = 0;
page_directory[directory_index].rw = 1; page_directory[directory_index].rw = 1;
} }
page_tables[table_index] = frame >> 12; page_tables[table_index].physicalAddress = frame >> 12;
page_tables[table_index].present = 1; page_tables[table_index].present = 1;
page_tables[table_index].usermode = 1; page_tables[table_index].usermode = 1;
page_tables[table_index].rw = 1; page_tables[table_index].rw = 1;