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Add macro "PAGE_DIR_ADDR"

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This commit is contained in:
Braiden Vasco 2017-11-09 06:26:24 +00:00
parent a24686c345
commit 5516ccbe10
2 changed files with 4 additions and 4 deletions
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2
arch/x86/pagedir.h
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@ -5,6 +5,8 @@
#define PAGE_DIR_ALIGN 4096
#define PAGE_DIR_ADDR(base) ((base) >> 12)
struct PageDir_Entry {
unsigned int present : 1;
unsigned int writable : 1;

6
arch/x86/paging.c
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@ -24,8 +24,6 @@
#define I386_CR4_MCE 0x00000040 // Machine check enable
#define I386_CR4_PGE 0x00000080 // Global page flag enable
#define BIG_PAGE_BASE_TO_ADDR(base) ((base) >> 12)
unsigned long read_cr0();
unsigned long read_cr4();
@ -73,7 +71,7 @@ void paging_clear()
void paging_identity()
{
for (int i = 0; i < PAGE_DIR_LENGTH; ++i) {
pagedir[i].addr = BIG_PAGE_BASE_TO_ADDR(i * PAGE_BIG_SIZE);
pagedir[i].addr = PAGE_DIR_ADDR(i * PAGE_BIG_SIZE);
pagedir[i].unused = 0;
pagedir[i].ignored = 0;
@ -99,7 +97,7 @@ int paging_mapkernel(const struct KernelMQ_Info *const kinfo)
unsigned long kern_phys = kinfo->kernel_phys_base;
while (mapped < kinfo->kernel_size) {
pagedir[pde].addr = BIG_PAGE_BASE_TO_ADDR(kern_phys);
pagedir[pde].addr = PAGE_DIR_ADDR(kern_phys);
pagedir[pde].unused = 0;
pagedir[pde].ignored = 0;