phys_window.c File Reference

#include "phys_window.h"
#include "autoconf.h"
#include <hal/cpu/paging.h>
#include <libk/serial.h>
#include <memory/vm_manager.h>

Go to the source code of this file.

Functions
void	paging_physwindow_mmap (page_t page_dir, uint64_t virt, uint64_t phys, int flags)
mem_physwindow_t *	mem_resolve_physwindow (uintptr_t virt_addr)
	resolve a physical memory window by virtual address
mem_physwindow_status_t	mem_create_physwindow (uintptr_t phys_addr, uintptr_t *virt_addr, mem_physwindow_flag_t flag)
mem_physwindow_status_t	mem_release_physwindow (uintptr_t virt_addr)

Variables
static mem_physwindow_t	physical_memory_windows [VOXIA_PHYS_MAX_WINDOW_COUNT]

Function Documentation

mem_create_physwindow()

mem_physwindow_status_t mem_create_physwindow	(	uintptr_t	phys_addr,
		uintptr_t *	virt_addr,
		mem_physwindow_flag_t	flag )

Definition at line 28 of file phys_window.c.

References lock, mem_vma_phys_window_start, paging_get_highest_page_map(), paging_physwindow_mmap(), phys_addr, PHYS_WINDOW_FLAG_LOCK, PHYS_WINDOW_FLAG_READ, PHYS_WINDOW_FLAG_WRITE, PHYS_WINDOW_STATUS_NOT_FOUND, PHYS_WINDOW_STATUS_OK, physical_memory_windows, and serial_trace.

Referenced by paging_create_page_directory(), paging_debug(), paging_setup(), paging_unmap_page(), and vxMmap().

mem_release_physwindow()

mem_physwindow_status_t mem_release_physwindow

(

uintptr_t

virt_addr

)

Definition at line 60 of file phys_window.c.

References PHYS_WINDOW_STATUS_NOT_FOUND, PHYS_WINDOW_STATUS_OK, physical_memory_windows, and serial_trace.

Referenced by paging_debug(), paging_setup(), paging_unmap_page(), and vxMmap().

mem_resolve_physwindow()

mem_physwindow_t * mem_resolve_physwindow

(

uintptr_t

virt_addr

)

resolve a physical memory window by virtual address

Parameters

virt_addr

the virtual address of the physical memory window

Returns

a pointer to the mem_physwindow_t structure if found, NULL otherwise

Definition at line 18 of file phys_window.c.

References physical_memory_windows.

paging_physwindow_mmap()

void paging_physwindow_mmap ( page_t page_dir, uint64_t virt, uint64_t phys, int flags )

extern

References flags.

Referenced by mem_create_physwindow().

Variable Documentation

physical_memory_windows

mem_physwindow_t physical_memory_windows[VOXIA_PHYS_MAX_WINDOW_COUNT]

static

Initial value:

= {
    0}

Definition at line 7 of file phys_window.c.

Referenced by mem_create_physwindow(), mem_release_physwindow(), and mem_resolve_physwindow().