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This commit is contained in:
Kamil Kowalczyk
2025-09-15 22:35:15 +02:00
parent ce63020b34
commit 0a5523f234
22 changed files with 374 additions and 177 deletions
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41
kernel/hal/x86_64/vmm.h
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@ -26,10 +26,14 @@ enum {
};
typedef struct {
uint64_t pml4;
uint64_t pml3;
uint64_t pml2;
uint64_t pml1;
uint16_t pml4;
uint16_t pml3;
uint16_t pml2;
uint16_t pml1;
/* uint64_t pml4; */
/* uint64_t pml3; */
/* uint64_t pml2; */
/* uint64_t pml1; */
} PACKED PgIndex;
typedef struct {
@ -39,25 +43,32 @@ typedef struct {
bool writethrough: 1;
bool cachedisabled: 1;
bool accessed: 1;
bool zero0: 1;
bool size: 1;
bool zero1: 1;
bool dirty: 1;
bool hugepage: 1;
bool global: 1;
uint8_t avail: 3;
uint64_t addr: 52;
uint64_t addr: 40;
uint16_t osdef: 11;
bool nx: 1;
/* bool zero0: 1; */
/* bool size: 1; */
/* bool zero1: 1; */
/* uint8_t avail: 3; */
/* uint64_t addr: 52; */
} PACKED Pte;
typedef struct {
Pte ents[512];
} PACKED PgTable;
extern PgTable *KERNEL_CR3;
extern uint64_t KERNEL_CR3;
void hal_vmm_init(void);
void hal_vmm_unmap_page(PgTable *pml4, uint64_t virtaddr, uint64_t physaddr);
void hal_vmm_map_page(PgTable *pml4, uint64_t virtaddr, uint64_t physaddr, uint32_t flags);
PgTable *hal_vmm_current_cr3(void);
void hal_vmm_map_range(PgTable *cr3, void *virtstart, void *physstart, size_t size, uint32_t flags);
void hal_vmm_unmap_range(PgTable *cr3, void *virtstart, void *physstart, size_t size);
PgTable *hal_vmm_userproc_pml4(struct Proc *proc);
void hal_vmm_unmap_page(uint64_t cr3phys, uint64_t virtaddr, uint64_t physaddr);
void hal_vmm_map_page(uint64_t cr3phys, uint64_t virtaddr, uint64_t physaddr, uint32_t flags);
uint64_t hal_vmm_current_cr3(void);
void hal_vmm_map_range(uint64_t cr3phys, void *virtstart, void *physstart, size_t size, uint32_t flags);
void hal_vmm_unmap_range(uint64_t cr3phys, void *virtstart, void *physstart, size_t size);
uint64_t hal_vmm_userproc_pml4_phys(struct Proc *proc);
#endif // HAL_VMM_H_