vmm.c File Reference

#include <kernel/mem/vmm.h>
#include <kernel/cpu/cpu.h>
#include <kernel/cpu/regs.h>
#include <kernel/cpu/syscall.h>
#include <kernel/init/boot_info.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/mem/paging.h>
#include <kernel/mem/pmm.h>
#include <kernel/mem/space.h>
#include <kernel/proc/process.h>
#include <kernel/sched/sched.h>
#include <kernel/sched/thread.h>
#include <kernel/sync/lock.h>
#include <boot/boot_info.h>
#include <assert.h>
#include <errno.h>
#include <sys/math.h>
#include <sys/proc.h>

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Functions
static void	vmm_cpu_ctx_init_common (vmm_cpu_ctx_t *ctx)
void	vmm_init (void)
	Initializes the Virtual Memory Manager.
void	vmm_kernel_space_load (void)
	Loads the kernel's address space into the current CPU.
void	vmm_cpu_ctx_init (vmm_cpu_ctx_t *ctx)
	Initializes a per-CPU VMM context and performs per-CPU VMM initialization.
space_t *	vmm_kernel_space_get (void)
	Retrieves the kernel's address space.
pml_flags_t	vmm_prot_to_flags (prot_t prot)
	Converts the user space memory protection flags to page table entry flags.
static void	vmm_page_table_unmap_with_shootdown (space_t *space, void *virtAddr, uint64_t pageAmount)
void *	vmm_alloc (space_t *space, void *virtAddr, uint64_t length, pml_flags_t pmlFlags, vmm_alloc_flags_t allocFlags)
	Allocates and maps virtual memory in a given address space.
void *	vmm_map (space_t *space, void *virtAddr, void *physAddr, uint64_t length, pml_flags_t flags, space_callback_func_t func, void *private)
	Maps physical memory to virtual memory in a given address space.
void *	vmm_map_pages (space_t *space, void *virtAddr, void **pages, uint64_t pageAmount, pml_flags_t flags, space_callback_func_t func, void *private)
	Maps an array of physical pages to virtual memory in a given address space.
void *	vmm_unmap (space_t *space, void *virtAddr, uint64_t length)
	Unmaps virtual memory from a given address space.
	SYSCALL_DEFINE (SYS_MUNMAP, void *, void *address, uint64_t length)
void *	vmm_protect (space_t *space, void *virtAddr, uint64_t length, pml_flags_t flags)
	Changes memory protection flags for a virtual memory region in a given address space.
	SYSCALL_DEFINE (SYS_MPROTECT, void *, void *address, uint64_t length, prot_t prot)

Variables
static space_t	kernelSpace

Function Documentation

vmm_cpu_ctx_init_common()

static void vmm_cpu_ctx_init_common ( vmm_cpu_ctx_t *  ctx )

static

Definition at line 26 of file vmm.c.

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vmm_page_table_unmap_with_shootdown()

static void vmm_page_table_unmap_with_shootdown ( space_t *  space, void *  virtAddr, uint64_t  pageAmount  )

inlinestatic

Definition at line 156 of file vmm.c.

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SYSCALL_DEFINE() [1/2]

SYSCALL_DEFINE	(	SYS_MUNMAP	,
		void *	,
		void *	address,
		uint64_t	length
	)

Definition at line 382 of file vmm.c.

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SYSCALL_DEFINE() [2/2]

SYSCALL_DEFINE	(	SYS_MPROTECT	,
		void *	,
		void *	address,
		uint64_t	length,
		prot_t	prot
	)

Definition at line 440 of file vmm.c.

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Variable Documentation

kernelSpace

space_t kernelSpace

static

Definition at line 24 of file vmm.c.