vmm_8c_source.html

#include <core/system.h>

#include <core/arch.h>

#include <core/panic.h>

#include <mm/mm.h>

#include <mm/vm.h>

#include <ds/queue.h>

#include <ds/hashmap.h>


MALLOC_DEFINE(M_VM_AREF, "vm-aref", "anonymous virtual memory object reference");


/* The kernel's address space. */

struct vm_space kvm_space;


int vm_map(struct vm_space *vm_space, struct vm_entry *vm_entry)

{

    return mm_map(vm_space->pmap, vm_entry->paddr, vm_entry->base, vm_entry->size, vm_entry->flags);

}


void vm_unmap_full(struct vm_space *vm_space, struct vm_entry *vm_entry)

{

    mm_unmap_full(vm_space->pmap, vm_entry->base, vm_entry->size);

}


hashmap.h

arch.h

panic.h

system.h

mm.h

mm_map
int mm_map(struct pmap *pmap, paddr_t paddr, vaddr_t vaddr, size_t size, int flags)
Maps a range of an address space, page by page.
Definition mm.c:161

mm_unmap_full
void mm_unmap_full(struct pmap *pmap, vaddr_t vaddr, size_t size)
Unmaps every page of a range of an address space.
Definition mm.c:208

MALLOC_DEFINE
#define MALLOC_DEFINE(type, _name, _desc)
Definition kvmem.h:30

queue.h

vm_entry
A mapping (map entry): a range of an address space, its permissions, and where its pages come from.
Definition vm.h:66

vm_entry::flags
uint32_t flags
its permissions and flags (VM_*)
Definition vm.h:78

vm_entry::paddr
paddr_t paddr
physical memory to map all at once (vm_map()), or 0 for pages that come in on page faults
Definition vm.h:69

vm_entry::base
vaddr_t base
where the mapping starts in its address space
Definition vm.h:72

vm_entry::size
size_t size
its size
Definition vm.h:75

vm_space
An address space: its mappings, and its page tables.
Definition vm.h:25

vm_space::pmap
struct pmap * pmap
its page tables (the architecture's)
Definition vm.h:27

vm.h

vm_unmap_full
void vm_unmap_full(struct vm_space *vm_space, struct vm_entry *vm_entry)
Unmaps every page of a map entry's range.
Definition vmm.c:42

vm_map
int vm_map(struct vm_space *vm_space, struct vm_entry *vm_entry)
Maps a map entry's whole range at once: its physical memory (paddr), or new pages of memory if it has...
Definition vmm.c:29

kvm_space
struct vm_space kvm_space
Definition vmm.c:17