mm: rename vmm api to mm

kernel-src/arch/x86-64/apic.c

@@ -1,5 +1,5 @@
 #include <logging.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <arch/mmu.h>
 #include <kernel/alloc.h>
 #include <kernel/interrupt.h>
@@ -274,7 +274,7 @@ void arch_apic_init() {
 
 	void *paddr = (void *) rdmsr(MSR_IA32APICBASE);
 
-	lapic_address = vmm_map(NULL, PAGE_SIZE, VMM_FLAGS_PHYSICAL, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, paddr);
+	lapic_address = mm_map(NULL, PAGE_SIZE, MM_RANGE_FLAGS_PHYSICAL, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, paddr);
 	__assert(lapic_address);
 
 	// map I/O apics to memory
@@ -286,7 +286,7 @@ void arch_apic_init() {
 		struct acpi_madt_ioapic *entry = getentry(ACPI_MADT_ENTRY_TYPE_IOAPIC, i);
 
 		__assert((entry->address % PAGE_SIZE) == 0);
-		ioapics[i].addr = vmm_map(NULL, PAGE_SIZE, VMM_FLAGS_PHYSICAL, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, (void *)(uint64_t)entry->address);
+		ioapics[i].addr = mm_map(NULL, PAGE_SIZE, MM_RANGE_FLAGS_PHYSICAL, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, (void *)(uint64_t)entry->address);
 		__assert(ioapics[i].addr);
 		ioapics[i].base = entry->gsi_base;
 		ioapics[i].top = ioapics[i].base + ((readioapic(ioapics[i].addr, IOAPIC_REG_ENTRY_COUNT) >> 16) & 0xff) + 1;

kernel-src/arch/x86-64/cpu.c

@@ -349,7 +349,7 @@ void arch_cpu_init() {
 	current_cpu()->topology_node = topology_nodes[topology_depth - 1];
 
 	// allocate ists
-	uint64_t *ist1 = vmm_map(NULL, PAGE_SIZE * 4, VMM_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
+	uint64_t *ist1 = mm_map(NULL, PAGE_SIZE * 4, MM_RANGE_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
 	__assert(ist1);
 
 	// the cpu automatically aligns to 16 bytes when pushing the interrupt frame, so save ourselves the trouble:

kernel-src/arch/x86-64/hpet.c

@@ -1,7 +1,7 @@
 #include <time.h>
 #include <logging.h>
 #include <arch/hpet.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/interrupt.h>
 #include <arch/tsc.h>
 #include <kernel/kernel_args.h>
@@ -103,7 +103,7 @@ static timekeeper_source_info_t *hpet_init(void) {
 	__assert(table->address.address_space_id == ACPI_AS_ID_SYS_MEM);
 
 	uint64_t page_offset = table->address.address % PAGE_SIZE;
-	hpet_private.hpet = vmm_map(NULL, (PAGE_SIZE + page_offset), VMM_FLAGS_PHYSICAL, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, (void *)(table->address.address - page_offset));
+	hpet_private.hpet = mm_map(NULL, (PAGE_SIZE + page_offset), MM_RANGE_FLAGS_PHYSICAL, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, (void *)(table->address.address - page_offset));
 	__assert(hpet_private.hpet);
 	hpet_private.hpet = (void *)((uintptr_t)hpet_private.hpet + page_offset);
 

kernel-src/arch/x86-64/kvmclock.c

@@ -56,7 +56,7 @@ static timekeeper_source_info_t *kvm_timer_init(void) {
 
 	int page_offset = (uintptr_t)virtual_address % PAGE_SIZE;
 	void *virtual_page = (void *)((uintptr_t)virtual_address - page_offset);
-	void *physical_page = vmm_getphysical(virtual_page, 0);
+	void *physical_page = mm_get_physical_address(virtual_page, 0);
 	__assert(physical_page);
 
 	timekeeper_source_info->private = (void *)((uintptr_t)physical_page + page_offset);

kernel-src/arch/x86-64/ldt.c

@@ -75,10 +75,10 @@ int arch_ldt_set_entry(unsigned int which, ldt_entry_t entry) {
 			done = 0;
 
 			for (int i = 0; i < arch_smp_cpusawake; ++i) {
-				// reading the vmm context like this is racey but there are no ill side effects other than spurious shootdowns
-				// if a cpu changes to this vmmctx, they will already have done a ldt invalidation.
+				// reading the mm context like this is racey but there are no ill side effects other than spurious shootdowns
+				// if a cpu changes to this mmctx, they will already have done a ldt invalidation.
 				// if it changes out of it, same thing
-				if (smp_cpus[i] == current_cpu() || (smp_cpus[i]->vmmctx != current_thread()->vmmctx))
+				if (smp_cpus[i] == current_cpu() || (smp_cpus[i]->mmctx != current_thread()->mmctx))
 					continue;
 
 				++shootdown_total;

kernel-src/arch/x86-64/mmu.c

@@ -4,7 +4,7 @@
 #include <string.h>
 #include <logging.h>
 #include <kernel/interrupt.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <arch/cpu.h>
 #include <arch/smp.h>
 #include <kernel/init.h>
@@ -264,10 +264,10 @@ void arch_mmu_invalidate_range(void *page, size_t size) {
 		old_ipl = interrupt_raiseipl(IPL_DPC);
 
 		for (int i = 0; i < arch_smp_cpusawake; ++i) {
-			// reading the vmm context like this is racey but there are no ill side effects other than spurious shootdowns
-			// if a cpu changes to this vmmctx, they will already have done a tlb invalidation.
+			// reading the mm context like this is racey but there are no ill side effects other than spurious shootdowns
+			// if a cpu changes to this mmctx, they will already have done a tlb invalidation.
 			// if it changes out of it, same thing
-			if (smp_cpus[i] == current_cpu() || (user_shootdown && smp_cpus[i]->vmmctx != current_thread()->vmmctx))
+			if (smp_cpus[i] == current_cpu() || (user_shootdown && smp_cpus[i]->mmctx != current_thread()->mmctx))
 				continue;
 
 			spinlock_acquire(&smp_cpus[i]->shootdown_lock);
@@ -339,16 +339,16 @@ static void pfisr(isr_t *self, context_t *ctx) {
 		arch_cpu_user_access_end();
 
 	interrupt_set(true);
-	int vmmerror = 0;
+	int mm_error = 0;
 
-	vmmerror |= VMM_ACTION_READ; // valid x86 PTEs will always have read permission (present) and actions will always have a read because of that.
+	mm_error |= MM_FAULT_ACTION_READ; // valid x86 PTEs will always have read permission (present) and actions will always have a read because of that.
 	if (ctx->error & ERROR_WRITE)
-		vmmerror |= VMM_ACTION_WRITE;
+		mm_error |= MM_FAULT_ACTION_WRITE;
 	
 	if (ctx->error & ERROR_FETCH)
-		vmmerror |= VMM_ACTION_EXEC;
+		mm_error |= MM_FAULT_ACTION_EXEC;
 
-	if (vmm_pagefault((void *)ctx->cr2, ctx->cs != 8, vmmerror) == false) {
+	if (mm_handle_page_fault((void *)ctx->cr2, ctx->cs != 8, mm_error) == false) {
 		if (thread && thread->usercopyctx) {
 			memcpy(ctx, thread->usercopyctx, sizeof(context_t));
 			ctx->rflags &= ~ARCH_CONTEXT_RFLAGS_AC;

kernel-src/arch/x86-64/smp.c

@@ -39,7 +39,7 @@ static void cpuwakeup(struct limine_mp_info *info) {
 	dpc_init();
 	arch_extracontext_detect();
 	arch_mmu_apswitch();
-	vmm_apinit();
+	mm_apinit();
 
 	arch_apic_initap();
 

kernel-src/fs/ext2.c

@@ -2,7 +2,7 @@
 #include <kernel/alloc.h>
 #include <kernel/timekeeper.h>
 #include <kernel/slab.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <arch/cpu.h>
 #include <kernel/page.h>
 #include <hashtable.h>

kernel-src/fs/initrd.c

@@ -3,7 +3,7 @@
 #include <string.h>
 #include <logging.h>
 #include <util.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/page.h>
 #include <kernel/abi.h>
 #include <time.h>

kernel-src/fs/pipefs.c

@@ -3,7 +3,7 @@
 #include <kernel/slab.h>
 #include <kernel/alloc.h>
 #include <kernel/timekeeper.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <logging.h>
 #include <errno.h>
 #include <kernel/abi.h>

kernel-src/fs/sockfs.c

@@ -2,7 +2,7 @@
 #include <kernel/slab.h>
 #include <kernel/alloc.h>
 #include <kernel/timekeeper.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <logging.h>
 #include <errno.h>
 #include <kernel/abi.h>

kernel-src/fs/tmpfs.c

@@ -4,12 +4,12 @@
 #include <errno.h>
 #include <kernel/alloc.h>
 #include <kernel/timekeeper.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <util.h>
 #include <kernel/abi.h>
 #include <kernel/devfs.h>
 #include <kernel/page.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <arch/cpu.h>
 #include <string.h>
 #include <kernel/mm.h>

kernel-src/include/kernel/mm.h

@@ -1,9 +1,98 @@
 #ifndef _MM_H
 #define _MM_H
 
+#include <arch/mmu.h>
+#include <mutex.h>
 #include <kernel/page.h>
 #include <kernel/vfs.h>
-#include <kernel/vmm.h>
+#include <rbtree.h>
+
+#define MM_RANGE_FLAGS_PAGESIZE 1
+#define MM_RANGE_FLAGS_ALLOCATE 2
+#define MM_RANGE_FLAGS_PHYSICAL 4
+#define MM_RANGE_FLAGS_FILE     8
+#define MM_RANGE_FLAGS_EXACT   16
+#define MM_RANGE_FLAGS_SHARED  32
+#define MM_RANGE_FLAGS_REPLACE 64
+#define MM_RANGE_FLAGS_CREDCHECK 128
+
+#define MM_PERMANENT_RANGE_FLAGS_MASK (MM_RANGE_FLAGS_FILE | MM_RANGE_FLAGS_SHARED | MM_RANGE_FLAGS_PHYSICAL)
+
+#define MM_FAULT_ACTION_READ 1
+#define MM_FAULT_ACTION_WRITE 2
+#define MM_FAULT_ACTION_EXEC 4
+
+typedef struct {
+	vnode_t *node;
+	uintmax_t offset;
+} mm_map_file_desc_t;
+
+typedef struct mm_range_t{
+	rbtree_t rbtree_node;
+	void *start;
+	size_t size;
+	int flags;
+	mmuflags_t mmuflags;
+	union {
+		struct {
+			vnode_t *vnode;
+			size_t offset;
+		};
+	};
+} mm_range_t;
+
+typedef struct {
+	mutex_t lock;
+	rbtree_t *ranges;
+	void *start;
+	void *end;
+} mm_space_t;
+
+typedef struct {
+	mm_space_t space;
+	pagetableptr_t pagetable;
+} mm_context_t;
+
+extern mm_context_t mm_kernel_ctx;
+
+static inline mmuflags_t mm_vnode_flags_to_mmu_flags(int flags) {
+	mmuflags_t mmuflags = ARCH_MMU_FLAGS_USER;
+	if (flags & V_FFLAGS_READ)
+		mmuflags |= ARCH_MMU_FLAGS_READ;
+	if (flags & V_FFLAGS_WRITE)
+		mmuflags |= ARCH_MMU_FLAGS_WRITE;
+	if ((flags & V_FFLAGS_EXEC) == 0)
+		mmuflags |= ARCH_MMU_FLAGS_NOEXEC;
+
+	return mmuflags;
+}
+
+static inline int mm_mmu_flags_to_vnode_flags(mmuflags_t mmuflags) {
+	int flags = 0;
+	if (mmuflags & ARCH_MMU_FLAGS_READ)
+		flags |= V_FFLAGS_READ;
+	if (mmuflags & ARCH_MMU_FLAGS_WRITE)
+		flags |= V_FFLAGS_WRITE;
+	if ((mmuflags & ARCH_MMU_FLAGS_NOEXEC) == 0)
+		flags |= V_FFLAGS_EXEC;
+
+	return flags;
+}
+
+int mm_change_mmu_flags(void *base, size_t size, mmuflags_t mmuflags, int flags);
+void mm_destroy_context(mm_context_t *context);
+mm_context_t *mm_fork_context(mm_context_t *oldcontext);
+void *mm_map(void *addr, size_t size, int flags, mmuflags_t mmuflags, void *private);
+void mm_unmap(void *addr, size_t size, int flags);
+bool mm_handle_page_fault(void *addr, bool user, int actions);
+mm_context_t *mm_create_context();
+void mm_switch_context(mm_context_t *ctx);
+
+#define MM_GET_PHYSICAL_ADDRESS_FLAGS_HOLD 1
+#define MM_GET_PHYSICAL_ADDRESS_FLAGS_LOCK 2
+void *mm_get_physical_address(void *addr, int flags);
+void mm_apinit();
+void mm_init();
 
 extern size_t mm_cache_cached_pages;
 
@@ -18,12 +107,12 @@ int mm_cache_sync(void);
 int mm_cache_evict(page_t *page);
 
 void mm_range_init(void);
-vmmrange_t *mm_alloc_range(void);
-void mm_free_range(vmmrange_t *range);
-vmmrange_t *mm_get_range(vmmspace_t *space, void *addr);
-void *mm_get_free_range(vmmspace_t *space, void *addr, size_t size);
-void mm_insert_range(vmmspace_t *space, vmmrange_t *new_range);
-void mm_destroy_range(vmmrange_t *range, uintmax_t offset, size_t size, int flags);
-int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, int flags, mmuflags_t new_mmuflags);
+mm_range_t *mm_alloc_range(void);
+void mm_free_range(mm_range_t *range);
+mm_range_t *mm_get_range(mm_space_t *space, void *addr);
+void *mm_get_free_range(mm_space_t *space, void *addr, size_t size);
+void mm_insert_range(mm_space_t *space, mm_range_t *new_range);
+void mm_destroy_range(mm_range_t *range, uintmax_t offset, size_t size, int flags);
+int mm_change_range(mm_space_t *space, void *address, size_t size, bool free, int flags, mmuflags_t new_mmuflags);
 
 #endif

kernel-src/include/kernel/proc.h

@@ -2,7 +2,7 @@
 #define _PROC_H
 
 #include <arch/context.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/abi.h>
 #include <kernel/vfs.h>
 #include <semaphore.h>

kernel-src/include/kernel/thread.h

@@ -2,7 +2,7 @@
 #define _THREAD_H
 
 #include <arch/context.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/abi.h>
 #include <kernel/signal.h>
 #include <kernel/event.h>
@@ -35,7 +35,7 @@ typedef struct thread_t {
 	extracontext_t extracontext;
 	void *kernelstack;
 	size_t kernelstacksize;
-	vmmcontext_t *vmmctx;
+	mm_context_t *mmctx;
 	tid_t tid;
 	int flags;
 	bool sleepintstatus;

kernel-src/include/kernel/vmm.h

@@ -1,96 +0,0 @@
-#ifndef _VMM_H
-#define _VMM_H
-
-#include <arch/mmu.h>
-#include <mutex.h>
-#include <kernel/vfs.h>
-#include <rbtree.h>
-
-#define VMM_FLAGS_PAGESIZE 1
-#define VMM_FLAGS_ALLOCATE 2
-#define VMM_FLAGS_PHYSICAL 4
-#define VMM_FLAGS_FILE     8
-#define VMM_FLAGS_EXACT   16
-#define VMM_FLAGS_SHARED  32
-#define VMM_FLAGS_REPLACE 64
-#define VMM_FLAGS_CREDCHECK 128
-
-#define VMM_PERMANENT_FLAGS_MASK (VMM_FLAGS_FILE | VMM_FLAGS_SHARED | VMM_FLAGS_PHYSICAL)
-
-#define VMM_ACTION_READ 1
-#define VMM_ACTION_WRITE 2
-#define VMM_ACTION_EXEC 4
-
-typedef struct {
-	vnode_t *node;
-	uintmax_t offset;
-} vmmfiledesc_t;
-
-typedef struct vmmrange_t{
-	rbtree_t rbtree_node;
-	void *start;
-	size_t size;
-	int flags;
-	mmuflags_t mmuflags;
-	union {
-		struct {
-			vnode_t *vnode;
-			size_t offset;
-		};
-	};
-} vmmrange_t;
-
-typedef struct {
-	mutex_t lock;
-	rbtree_t *ranges;
-	void *start;
-	void *end;
-} vmmspace_t;
-
-typedef struct {
-	vmmspace_t space;
-	pagetableptr_t pagetable;
-} vmmcontext_t;
-
-extern vmmcontext_t vmm_kernelctx;
-
-static inline mmuflags_t vnodeflagstommuflags(int flags) {
-	mmuflags_t mmuflags = ARCH_MMU_FLAGS_USER;
-	if (flags & V_FFLAGS_READ)
-		mmuflags |= ARCH_MMU_FLAGS_READ;
-	if (flags & V_FFLAGS_WRITE)
-		mmuflags |= ARCH_MMU_FLAGS_WRITE;
-	if ((flags & V_FFLAGS_EXEC) == 0)
-		mmuflags |= ARCH_MMU_FLAGS_NOEXEC;
-
-	return mmuflags;
-}
-
-static inline int mmuflagstovnodeflags(mmuflags_t mmuflags) {
-	int flags = 0;
-	if (mmuflags & ARCH_MMU_FLAGS_READ)
-		flags |= V_FFLAGS_READ;
-	if (mmuflags & ARCH_MMU_FLAGS_WRITE)
-		flags |= V_FFLAGS_WRITE;
-	if ((mmuflags & ARCH_MMU_FLAGS_NOEXEC) == 0)
-		flags |= V_FFLAGS_EXEC;
-
-	return flags;
-}
-
-int vmm_changemmuflags(void *base, size_t size, mmuflags_t mmuflags, int flags);
-void vmm_destroycontext(vmmcontext_t *context);
-vmmcontext_t *vmm_fork(vmmcontext_t *oldcontext);
-void *vmm_map(void *addr, size_t size, int flags, mmuflags_t mmuflags, void *private);
-void vmm_unmap(void *addr, size_t size, int flags);
-bool vmm_pagefault(void *addr, bool user, int actions);
-vmmcontext_t *vmm_newcontext();
-void vmm_switchcontext(vmmcontext_t *ctx);
-
-#define VMM_GET_PHYSICAL_FLAGS_HOLD 1
-#define VMM_GET_PHYSICAL_FLAGS_LOCK 2
-void *vmm_getphysical(void *addr, int flags);
-void vmm_apinit();
-void vmm_init();
-
-#endif

kernel-src/include/x86-64/arch/cpu.h

@@ -7,7 +7,7 @@
 #include <arch/msr.h>
 #include <arch/ist.h>
 #include <kernel/interrupt.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/timer.h>
 #include <kernel/scheduler.h>
 #include <kernel/dpc.h>
@@ -23,7 +23,7 @@ typedef struct cpu_t {
 
 	struct cpu_t *self; // expected to be here by other code
 
-	vmmcontext_t *vmmctx; // expected to be here by other code
+	mm_context_t *mmctx; // expected to be here by other code
 
 	long hardware_id; // expected to be here by other code
 	long internal_id; // expected to be here by other code
@@ -131,13 +131,13 @@ static inline cpu_t *current_cpu(void) {
 	return cpu;
 }
 
-static inline vmmcontext_t *current_vmm_context(void) {
-	vmmcontext_t *context;
+static inline mm_context_t *current_mm_context(void) {
+	mm_context_t *context;
 	asm volatile ("mov %%gs:16, %%rax" : "=a"(context) : : "memory");
 	return context;
 }
 
-static inline void set_current_vmm_context(vmmcontext_t *context) {
+static inline void set_current_mm_context(mm_context_t *context) {
 	asm volatile ("mov %%rax, %%gs:16" : : "a"(context) : "memory");
 }
 

kernel-src/include/x86-64/arch/pci.h

@@ -96,7 +96,7 @@ static void pci_archinit() {
 			void *phys = (void *)mcfgentries[i].address;
 			uintmax_t pageoffset = (uintptr_t)phys % PAGE_SIZE;
 			size_t mappingsize = pageoffset + MCFG_MAPPING_SIZE(mcfgentries[i].end_bus - mcfgentries[i].start_bus + 1);
-			void *virt = vmm_map(NULL, mappingsize, VMM_FLAGS_PHYSICAL,
+			void *virt = mm_map(NULL, mappingsize, MM_RANGE_FLAGS_PHYSICAL,
 				ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC | ARCH_MMU_FLAGS_UC, phys);
 			__assert(virt);
 			mcfgentries[i].address = (uintptr_t)virt + pageoffset;

kernel-src/io/acpi/glue.c

@@ -62,7 +62,7 @@ void uacpi_kernel_free(void *ptr) {
 
 void *uacpi_kernel_map(uacpi_phys_addr physical, uacpi_size length) {
 	uintmax_t pageoffset = (uintptr_t)physical % PAGE_SIZE;
-	void *virt = vmm_map(NULL, ROUND_UP(length + pageoffset, PAGE_SIZE), VMM_FLAGS_PHYSICAL,
+	void *virt = mm_map(NULL, ROUND_UP(length + pageoffset, PAGE_SIZE), MM_RANGE_FLAGS_PHYSICAL,
 		ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC,
 		(void*)ROUND_DOWN(physical, PAGE_SIZE));
 
@@ -74,7 +74,7 @@ void uacpi_kernel_unmap(void *ptr, uacpi_size length) {
 	uintmax_t pageoffset = (uintptr_t)ptr % PAGE_SIZE;
 
 	uintptr_t addr = (uintptr_t)ptr;
-	vmm_unmap((void*)ROUND_DOWN(addr, PAGE_SIZE), ROUND_UP(length + pageoffset, PAGE_SIZE), 0);
+	mm_unmap((void*)ROUND_DOWN(addr, PAGE_SIZE), ROUND_UP(length + pageoffset, PAGE_SIZE), 0);
 }
 
 uacpi_status uacpi_kernel_raw_memory_read(uacpi_phys_addr address, uacpi_u8 width, uacpi_u64 *out) {

kernel-src/io/block/block.c

@@ -5,7 +5,7 @@
 #include <kernel/alloc.h>
 #include <kernel/devfs.h>
 #include <string.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/usercopy.h>
 
 #define DISK_READ(desc, it, lba, size) (desc)->read(desc->private, it, lba, size)
@@ -200,7 +200,7 @@ static int registerdesc(blockdesc_t *desc, char *name) {
 
 static int detectpart(blockdesc_t *desc) {
 	// read first two sectors
-	void *sects = vmm_map(NULL, desc->blocksize * 2, VMM_FLAGS_ALLOCATE, MAP_FLAGS, NULL);
+	void *sects = mm_map(NULL, desc->blocksize * 2, MM_RANGE_FLAGS_ALLOCATE, MAP_FLAGS, NULL);
 	__assert(sects);
 	__assert(disk_read_direct(desc, sects, 0, 2) == 0);
 
@@ -216,7 +216,7 @@ static int detectpart(blockdesc_t *desc) {
 	else if (bootmagic == MBR_BOOT_MAGIC)
 		ret = PART_MBR;
 
-	vmm_unmap(sects, desc->blocksize * 2, 0);
+	mm_unmap(sects, desc->blocksize * 2, 0);
 	return ret;
 }
 
@@ -241,7 +241,7 @@ static bool gptentryvalid(blockdesc_t *desc, gptheader_t *header, gptentry_t *en
 
 static void dogpt(blockdesc_t *desc, char *name) {
 	// get header
-	void *lba1 = vmm_map(NULL, desc->blocksize, VMM_FLAGS_ALLOCATE, MAP_FLAGS, NULL);
+	void *lba1 = mm_map(NULL, desc->blocksize, MM_RANGE_FLAGS_ALLOCATE, MAP_FLAGS, NULL);
 	__assert(lba1);
 	__assert(disk_read_direct(desc, lba1, 1, 1) == 0);
 	gptheader_t *header = lba1;
@@ -249,7 +249,7 @@ static void dogpt(blockdesc_t *desc, char *name) {
 	// get partition table
 	size_t tablebytesize = header->entrybytesize * header->entrycount;
 	size_t tablelbasize = ROUND_UP(tablebytesize, desc->blocksize) / desc->blocksize;
-	void *tablebuffer = vmm_map(NULL, tablelbasize * desc->blocksize, VMM_FLAGS_ALLOCATE, MAP_FLAGS, NULL);
+	void *tablebuffer = mm_map(NULL, tablelbasize * desc->blocksize, MM_RANGE_FLAGS_ALLOCATE, MAP_FLAGS, NULL);
 	__assert(tablebuffer);
 	__assert(disk_read_direct(desc, tablebuffer, header->entryarraylbastart, tablelbasize) == 0);
 
@@ -277,13 +277,13 @@ static void dogpt(blockdesc_t *desc, char *name) {
 		__assert(registerdesc(partdesc, partname) == 0);
 	}
 
-	vmm_unmap(tablebuffer, tablelbasize * desc->blocksize, 0);
-	vmm_unmap(lba1, desc->blocksize, 0);
+	mm_unmap(tablebuffer, tablelbasize * desc->blocksize, 0);
+	mm_unmap(lba1, desc->blocksize, 0);
 }
 
 static void dombr(blockdesc_t *desc, char *name) {
 	// get entries
-	void *lba0 = vmm_map(NULL, desc->blocksize, VMM_FLAGS_ALLOCATE, MAP_FLAGS, NULL);
+	void *lba0 = mm_map(NULL, desc->blocksize, MM_RANGE_FLAGS_ALLOCATE, MAP_FLAGS, NULL);
 	__assert(lba0);
 	__assert(disk_read_direct(desc, lba0, 0, 1) == 0);
 	mbrentry_t *mbrents = (mbrentry_t *)((uintptr_t)lba0 + MBR_ENTRIES_OFFSET);
@@ -310,7 +310,7 @@ static void dombr(blockdesc_t *desc, char *name) {
 		__assert(registerdesc(partdesc, partname) == 0);
 	}
 
-	vmm_unmap(lba0, desc->blocksize, 0);
+	mm_unmap(lba0, desc->blocksize, 0);
 }
 
 void block_register(blockdesc_t *desc, char *name) {

kernel-src/io/block/nvme.c

@@ -1,6 +1,6 @@
 #include <kernel/pci.h>
 #include <logging.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <util.h>
 #include <kernel/page.h>
 #include <kernel/alloc.h>

kernel-src/io/fb.c

@@ -144,7 +144,7 @@ static int mmap(int minor, void *addr, uintmax_t offset, int flags) {
 	if (flags & V_FFLAGS_SHARED) {
 		// make sure offset is ALWAYS page aligned when doing a shared mapping
 		__assert((offset % PAGE_SIZE) == 0);
-		return arch_mmu_map(current_vmm_context()->pagetable, FROM_HHDM((void *)((uintptr_t)fbs[minor]->address + offset)), addr, vnodeflagstommuflags(flags)) ? 0 : ENOMEM;
+		return arch_mmu_map(current_mm_context()->pagetable, FROM_HHDM((void *)((uintptr_t)fbs[minor]->address + offset)), addr, mm_vnode_flags_to_mmu_flags(flags)) ? 0 : ENOMEM;
 	} else {
 		size_t size = offset + PAGE_SIZE < end ? PAGE_SIZE : end - offset;
 		paddr = mm_alloc_page(MEMORY_SECTION_DEFAULT);
@@ -153,7 +153,7 @@ static int mmap(int minor, void *addr, uintmax_t offset, int flags) {
 
 		memcpy(MAKE_HHDM(paddr), (void *)((uintptr_t)fbs[minor]->address + offset), size);
 
-		if (arch_mmu_map(current_vmm_context()->pagetable, paddr, addr, vnodeflagstommuflags(flags) | ARCH_MMU_FLAGS_WC) == false) {
+		if (arch_mmu_map(current_mm_context()->pagetable, paddr, addr, mm_vnode_flags_to_mmu_flags(flags) | ARCH_MMU_FLAGS_WC) == false) {
 			mm_release_page(paddr);
 			return ENOMEM;
 		}
@@ -163,9 +163,9 @@ static int mmap(int minor, void *addr, uintmax_t offset, int flags) {
 }
 
 static int munmap(int minor, void *addr, uintmax_t offset, int flags) {
-	void *phys = arch_mmu_getphysical(current_vmm_context()->pagetable, addr);
-	bool release = (flags & V_FFLAGS_SHARED) && arch_mmu_iswritable(current_vmm_context()->pagetable, addr);
-	arch_mmu_unmap(current_vmm_context()->pagetable, addr);
+	void *phys = arch_mmu_getphysical(current_mm_context()->pagetable, addr);
+	bool release = (flags & V_FFLAGS_SHARED) && arch_mmu_iswritable(current_mm_context()->pagetable, addr);
+	arch_mmu_unmap(current_mm_context()->pagetable, addr);
 	arch_mmu_invalidate_range(addr, PAGE_SIZE);
 	if (release)
 		mm_release_page(phys);

kernel-src/io/iovec.c

@@ -1,5 +1,5 @@
 #include <kernel/iovec.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/usercopy.h>
 
 static inline bool iovec_iterator_finished(iovec_iterator_t *iovec_iterator) {
@@ -246,7 +246,7 @@ int iovec_iterator_next_page(iovec_iterator_t *iovec_iterator, size_t *page_offs
 		return 0;
 	}
 
-	void *phys = vmm_getphysical((void *)((uintptr_t)addr - offset_in_page), VMM_GET_PHYSICAL_FLAGS_HOLD | VMM_GET_PHYSICAL_FLAGS_LOCK);
+	void *phys = mm_get_physical_address((void *)((uintptr_t)addr - offset_in_page), MM_GET_PHYSICAL_ADDRESS_FLAGS_HOLD | MM_GET_PHYSICAL_ADDRESS_FLAGS_LOCK);
 	if (phys == NULL)
 		return EFAULT;
 

kernel-src/io/pci.c

@@ -2,7 +2,7 @@
 #include <arch/pci.h>
 #include <kernel/pci.h>
 #include <kernel/alloc.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/init.h>
 
 uint8_t pci_read8(int bus, int device, int function, uint32_t offset) {
@@ -185,7 +185,7 @@ void pci_msisetmask(pcienum_t *e, int vector, int value) {
 
 void *pci_mapbar(pcibar_t bar) {
 	__assert(bar.mmio);
-	return vmm_map(NULL, bar.length, VMM_FLAGS_PHYSICAL, BAR_MAP_FLAGS | (bar.prefetchable ? ARCH_MMU_FLAGS_WT : ARCH_MMU_FLAGS_UC), (void *)bar.address);
+	return mm_map(NULL, bar.length, MM_RANGE_FLAGS_PHYSICAL, BAR_MAP_FLAGS | (bar.prefetchable ? ARCH_MMU_FLAGS_WT : ARCH_MMU_FLAGS_UC), (void *)bar.address);
 }
 
 #define BAR_IO 1

kernel-src/io/term.c

@@ -102,4 +102,4 @@ void term_init() {
 	logging_sethook(term_putchar);
 }
 
-INIT_ROUTINE_DEFINE(term, INIT_ROUTINE_FLAGS_NONE, term_init, vmm);
+INIT_ROUTINE_DEFINE(term, INIT_ROUTINE_FLAGS_NONE, term_init, mm);

kernel-src/io/usb/ctrl/xhci.c

@@ -6,7 +6,7 @@
 #include <kernel/pci.h>
 #include <kernel/page.h>
 #include <kernel/usb.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <list.h>
 #include <logging.h>
 #include <util.h>

kernel-src/io/usb/ctrl/xhci_xfer.c

@@ -1,7 +1,7 @@
 #include <kernel/xhci.h>
 #include <errno.h>
 #include <kernel/alloc.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/page.h>
 #include <logging.h>
 
@@ -70,7 +70,7 @@ int xhci_data_xfer(xhci_ctrl_t *xhci, xhci_device_t *dev, usb_xfer_t *xfer, xhci
 			// This should never be called with user pages. Doing so is a bug. For user-fronting code, use
 			// the scatter-gather variant
 			__assert(!IS_USER_ADDRESS(xfer->data));
-			void *page = vmm_getphysical(xfer->data - page_offset, VMM_GET_PHYSICAL_FLAGS_HOLD);
+			void *page = mm_get_physical_address(xfer->data - page_offset, MM_GET_PHYSICAL_ADDRESS_FLAGS_HOLD);
 			__assert(page != NULL);
 			trb.parameters = (uint64_t)page + page_offset;
 		}
@@ -242,7 +242,7 @@ int xhci_control_xfer(xhci_ctrl_t *xhci, xhci_device_t *dev, usb_xfer_t *xfer, x
 				mm_hold_page(xfer->data - page_offset);
 				data_trb.parameters = (uint64_t)xfer->data;
 			} else {
-				void *page = vmm_getphysical(xfer->data - page_offset, VMM_GET_PHYSICAL_FLAGS_HOLD);
+				void *page = mm_get_physical_address(xfer->data - page_offset, MM_GET_PHYSICAL_ADDRESS_FLAGS_HOLD);
 				if (page == NULL) {
 					xhci_ring_unreserve(ring, trb_count);
 					return EFAULT;

kernel-src/mm/cache.c

@@ -1,5 +1,4 @@
 #include <kernel/mm.h>
-#include <kernel/vmm.h>
 #include <util.h>
 #include <logging.h>
 #include <kernel/timekeeper.h>
@@ -487,7 +486,7 @@ static void writer() {
 
 void mm_cache_init(void) {
 	MUTEX_INIT(&mutex);
-	table = vmm_map(NULL, TABLE_SIZE * sizeof(page_t *), VMM_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
+	table = mm_map(NULL, TABLE_SIZE * sizeof(page_t *), MM_RANGE_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
 	__assert(table);
 	memset(table, 0, TABLE_SIZE * sizeof(page_t *));
 

kernel-src/mm/mm.c

@@ -1,4 +1,4 @@
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <logging.h>
 #include <kernel/page.h>
 #include <util.h>
@@ -6,29 +6,28 @@
 #include <limine.h>
 #include <string.h>
 #include <kernel/slab.h>
-#include <kernel/mm.h>
 #include <kernel/init.h>
 
 // ranges are separated into kernel and user. the kernel has a temporary user context
-vmmcontext_t vmm_kernelctx;
-static vmmspace_t kernelspace = {
+mm_context_t mm_kernel_ctx;
+static mm_space_t kernelspace = {
 	.start = KERNELSPACE_START,
 	.end = KERNELSPACE_END
 };
 
 // returns a pointer to the space of vaddr
-static vmmspace_t *getspace(void *vaddr) {
+static mm_space_t *getspace(void *vaddr) {
 	if (USERSPACE_START <= vaddr && vaddr < USERSPACE_END)
-		return &current_vmm_context()->space;
+		return &current_mm_context()->space;
 	else if (KERNELSPACE_START <= vaddr && vaddr < KERNELSPACE_END)
 		return &kernelspace;
 	else
 		return NULL;
 }
 
-static int vmm_range_compare(rbtree_t *a, rbtree_t *b) {
-	vmmrange_t *range_a = container_of(a, vmmrange_t, rbtree_node);
-	vmmrange_t *range_b = container_of(b, vmmrange_t, rbtree_node);
+static int mm_range_compare(rbtree_t *a, rbtree_t *b) {
+	mm_range_t *range_a = container_of(a, mm_range_t, rbtree_node);
+	mm_range_t *range_b = container_of(b, mm_range_t, rbtree_node);
 
 	if (range_a->start == range_b->start)
 		return 0;
@@ -36,10 +35,10 @@ static int vmm_range_compare(rbtree_t *a, rbtree_t *b) {
 	return range_a->start > range_b->start ? 1 : -1;
 }
 
-int vmm_changemmuflags(void *base, size_t size, mmuflags_t mmuflags, int flags) {
+int mm_change_mmu_flags(void *base, size_t size, mmuflags_t mmuflags, int flags) {
 	base = (void *)ROUND_DOWN((uintptr_t)base, PAGE_SIZE);
 
-	if (flags & VMM_FLAGS_PAGESIZE)
+	if (flags & MM_RANGE_FLAGS_PAGESIZE)
 		size *= PAGE_SIZE;
 	else
 		size = ROUND_UP(size, PAGE_SIZE);
@@ -47,7 +46,7 @@ int vmm_changemmuflags(void *base, size_t size, mmuflags_t mmuflags, int flags)
 	if (size == 0)
 		return 0;
 
-	vmmspace_t *space = getspace(base);
+	mm_space_t *space = getspace(base);
 	if (space == NULL)
 		return ENOMEM;
 
@@ -63,40 +62,40 @@ int vmm_changemmuflags(void *base, size_t size, mmuflags_t mmuflags, int flags)
 	return error;
 }
 
-static void printspace(vmmspace_t *space) {
-	printf("vmm: ranges:\n");
+static void printspace(mm_space_t *space) {
+	printf("mm: ranges:\n");
 	rbtree_t *rbtree = rbtree_first(space->ranges);
 	while (rbtree) {
-		vmmrange_t *range = container_of(rbtree, vmmrange_t, rbtree_node);
-		printf("vmm: address %p size %lx flags %x\n", range->start, range->size, range->flags);
+		mm_range_t *range = container_of(rbtree, mm_range_t, rbtree_node);
+		printf("mm: address %p size %lx flags %x\n", range->start, range->size, range->flags);
 		rbtree = rbtree_successor(rbtree);
 	}
 }
 
 static void *zeropage;
 
-bool vmm_pagefault(void *addr, bool user, int actions) {
+bool mm_handle_page_fault(void *addr, bool user, int actions) {
 	if (user == false && addr > USERSPACE_END) {
-		printf("vmm: kernel access\n");
+		printf("mm: kernel access\n");
 		return false;
 	}
 
 	addr = (void *)ROUND_DOWN((uintptr_t)addr, PAGE_SIZE);
 
-	vmmspace_t *space = getspace(addr);
+	mm_space_t *space = getspace(addr);
 
 	if (space == NULL || (space == &kernelspace && user)) {
-		printf("vmm: no such space or space accessed is kerneç\n");
+		printf("mm: no such space or space accessed is kernel\n");
 		return false;
 	}
 
 	MUTEX_ACQUIRE(&space->lock);
-	vmmrange_t *range = mm_get_range(space, addr);
+	mm_range_t *range = mm_get_range(space, addr);
 
 	bool status = false;
 
 	if (range == NULL) {
-		printf("vmm: no range\n");
+		printf("mm: no range\n");
 		goto cleanup;
 	}
 
@@ -105,16 +104,16 @@ bool vmm_pagefault(void *addr, bool user, int actions) {
 	int invalidactions = 0;
 
 	if ((range->mmuflags & ARCH_MMU_FLAGS_READ) == 0)
-		invalidactions |= VMM_ACTION_READ;
+		invalidactions |= MM_FAULT_ACTION_READ;
 
 	if ((range->mmuflags & ARCH_MMU_FLAGS_WRITE) == 0)
-		invalidactions |= VMM_ACTION_WRITE;
+		invalidactions |= MM_FAULT_ACTION_WRITE;
 
 	if ((range->mmuflags & ARCH_MMU_FLAGS_NOEXEC))
-		invalidactions |= VMM_ACTION_EXEC;
+		invalidactions |= MM_FAULT_ACTION_EXEC;
 
 	if (invalidactions & actions) {
-		printf("vmm: bad action\n");
+		printf("mm: bad action\n");
 		goto cleanup;
 	}
 
@@ -122,14 +121,14 @@ bool vmm_pagefault(void *addr, bool user, int actions) {
 	proc_t *proc = thread ? thread->proc : NULL;
 	cred_t *cred = proc ? &proc->cred : NULL;
 
-	if (arch_mmu_ispresent(current_vmm_context()->pagetable, addr) == false) {
+	if (arch_mmu_ispresent(current_mm_context()->pagetable, addr) == false) {
 		// page not present in the page tables
-		if (range->flags & VMM_FLAGS_FILE) {
+		if (range->flags & MM_RANGE_FLAGS_FILE) {
 			uintmax_t mapoffset = (uintptr_t)addr - (uintptr_t)range->start;
 			if (vfs_iscacheable(range->vnode) == false) {
 				// map non cacheable vnodes
 				VOP_LOCK(range->vnode);
-				__assert(VOP_MMAP(range->vnode, addr, range->offset + mapoffset, mmuflagstovnodeflags(range->mmuflags) | (range->flags & VMM_FLAGS_SHARED ? V_FFLAGS_SHARED : 0), cred) == 0);
+				__assert(VOP_MMAP(range->vnode, addr, range->offset + mapoffset, mm_mmu_flags_to_vnode_flags(range->mmuflags) | (range->flags & MM_RANGE_FLAGS_SHARED ? V_FFLAGS_SHARED : 0), cred) == 0);
 				VOP_UNLOCK(range->vnode);
 				status = true;
 			} else {
@@ -139,17 +138,17 @@ bool vmm_pagefault(void *addr, bool user, int actions) {
 
 				if (error == ENXIO || error == ENOMEM)  {
 					if (error == ENOMEM)
-						printf("vmm: out of memory to handle getpage (sending SIGBUS)\n");
+						printf("mm: out of memory to handle getpage (sending SIGBUS)\n");
 					// address is past the last page of the file
 					signal_signalthread(current_thread(), SIGBUS, true);
 					status = true;
 				} else if (error) {
-					printf("vmm: error on mm_cache_get_page(): %d\n", error);
+					printf("mm: error on mm_cache_get_page(): %d\n", error);
 					status = false;
 				} else {
-					status = arch_mmu_map(current_vmm_context()->pagetable, mm_get_page_address(res), addr, range->mmuflags & ~ARCH_MMU_FLAGS_WRITE);
+					status = arch_mmu_map(current_mm_context()->pagetable, mm_get_page_address(res), addr, range->mmuflags & ~ARCH_MMU_FLAGS_WRITE);
 					if (!status) {
-						printf("vmm: out of memory to map file into address space (sending SIGBUS)\n");
+						printf("mm: out of memory to map file into address space (sending SIGBUS)\n");
 						mm_release_page(mm_get_page_address(res));
 						signal_signalthread(current_thread(), SIGBUS, true);
 						status = true;
@@ -163,39 +162,39 @@ bool vmm_pagefault(void *addr, bool user, int actions) {
 				// writeable range: allocate a new page, zero it and map it
 				void *new_page = mm_alloc_page(MEMORY_SECTION_DEFAULT);
 				if (new_page == NULL) {
-					printf("vmm: out of memory to allocate page to satisfy anonymous page-in (sending SIGBUS)\n");
+					printf("mm: out of memory to allocate page to satisfy anonymous page-in (sending SIGBUS)\n");
 					signal_signalthread(current_thread(), SIGBUS, true);
 					goto cleanup;
 				}
 
 				memset(MAKE_HHDM(new_page), 0, PAGE_SIZE);
 
-				if (!arch_mmu_map(current_vmm_context()->pagetable, new_page, addr, range->mmuflags)) {
-					printf("vmm: out of memory to map page (sending SIGBUS)\n");
+				if (!arch_mmu_map(current_mm_context()->pagetable, new_page, addr, range->mmuflags)) {
+					printf("mm: out of memory to map page (sending SIGBUS)\n");
 					signal_signalthread(current_thread(), SIGBUS, true);
 					mm_release_page(new_page);
 				}
 			} else {
 				// read-only range: map a shared zero page
-				if (!arch_mmu_map(current_vmm_context()->pagetable, zeropage, addr, range->mmuflags)) {
-					printf("vmm: out of memory to map zero page into address space (sending SIGBUS)\n");
+				if (!arch_mmu_map(current_mm_context()->pagetable, zeropage, addr, range->mmuflags)) {
+					printf("mm: out of memory to map zero page into address space (sending SIGBUS)\n");
 					signal_signalthread(current_thread(), SIGBUS, true);
 				} else {
 					mm_hold_page(zeropage);
 				}
 			}
 		}
-	} else if (arch_mmu_iswritable(current_vmm_context()->pagetable, addr) == false) {
+	} else if (arch_mmu_iswritable(current_mm_context()->pagetable, addr) == false) {
 		// page present but not writeable in the page tables
-		void *oldphys = arch_mmu_getphysical(current_vmm_context()->pagetable, addr);
+		void *oldphys = arch_mmu_getphysical(current_mm_context()->pagetable, addr);
 		page_t *oldpage = mm_get_page(oldphys);
 
-		if (    ((range->flags & VMM_FLAGS_FILE) && (range->flags & VMM_FLAGS_SHARED)) ||
-			((range->flags & VMM_FLAGS_FILE) == 0 && oldpage->refcount == 1)) {
+		if (    ((range->flags & MM_RANGE_FLAGS_FILE) && (range->flags & MM_RANGE_FLAGS_SHARED)) ||
+			((range->flags & MM_RANGE_FLAGS_FILE) == 0 && oldpage->refcount == 1)) {
 			// shared file or anon with refcount == 1, remap it as writable
 
-			arch_mmu_remap(current_vmm_context()->pagetable, oldphys, addr, range->mmuflags);
-			if ((range->flags & VMM_FLAGS_FILE) && vfs_iscacheable(range->vnode)) {
+			arch_mmu_remap(current_mm_context()->pagetable, oldphys, addr, range->mmuflags);
+			if ((range->flags & MM_RANGE_FLAGS_FILE) && vfs_iscacheable(range->vnode)) {
 				// and if its a cache page, mark it as dirty
 				VOP_LOCK(range->vnode);
 				mm_cache_make_dirty(mm_get_page(oldphys));
@@ -207,14 +206,14 @@ bool vmm_pagefault(void *addr, bool user, int actions) {
 			// do copy on write
 			void *newphys = mm_alloc_page(MEMORY_SECTION_DEFAULT);
 			if (newphys == NULL) {
-				printf("vmm: out of memory to do copy on write on address space (sending SIGBUS)\n");
+				printf("mm: out of memory to do copy on write on address space (sending SIGBUS)\n");
 				signal_signalthread(current_thread(), SIGBUS, true);
 				status = true;
 			} else {
 				memcpy(MAKE_HHDM(newphys), MAKE_HHDM(oldphys), PAGE_SIZE);
-				arch_mmu_remap(current_vmm_context()->pagetable, newphys, addr, range->mmuflags);
+				arch_mmu_remap(current_mm_context()->pagetable, newphys, addr, range->mmuflags);
 				arch_mmu_invalidate_range(addr, PAGE_SIZE);
-				if ((range->flags & VMM_FLAGS_FILE) == 0 || vfs_iscacheable(range->vnode))
+				if ((range->flags & MM_RANGE_FLAGS_FILE) == 0 || vfs_iscacheable(range->vnode))
 					mm_release_page(oldphys);
 
 				status = true;
@@ -231,16 +230,16 @@ bool vmm_pagefault(void *addr, bool user, int actions) {
 }
 
 /*
-static int lock_page(vmmspace_t *space, void *vaddr) {
-	vmmrange_t *range = mm_get_range(space, vaddr);
+static int lock_page(mm_space_t *space, void *vaddr) {
+	mm_range_t *range = mm_get_range(space, vaddr);
 	if (!range)
 		return ENOENT;
 
-	void *mapped_address = arch_mmu_getphysical(current_vmm_context()->pagetable, vaddr);
-	bool present = arch_mmu_ispresent(current_vmm_context()->pagetable, vaddr);
-	bool writable = arch_mmu_iswritable(current_vmm_context()->pagetable, vaddr);
-	bool file_mapping = range->flags & VMM_FLAGS_FILE;
-	bool private = (range->flags & VMM_FLAGS_SHARED) == 0 || file_mapping == false;
+	void *mapped_address = arch_mmu_getphysical(current_mm_context()->pagetable, vaddr);
+	bool present = arch_mmu_ispresent(current_mm_context()->pagetable, vaddr);
+	bool writable = arch_mmu_iswritable(current_mm_context()->pagetable, vaddr);
+	bool file_mapping = range->flags & MM_RANGE_FLAGS_FILE;
+	bool private = (range->flags & MM_RANGE_FLAGS_SHARED) == 0 || file_mapping == false;
 	void *real_phys;
 
 	// TODO anon with refcount == 1 can go into another cas
@@ -254,7 +253,7 @@ static int lock_page(vmmspace_t *space, void *vaddr) {
 
 		memcpy(MAKE_HHDM(real_phys), MAKE_HHDM(mapped_address), PAGE_SIZE);
 
-		arch_mmu_remap(current_vmm_context()->pagetable, real_phys, vaddr, range->mmuflags);
+		arch_mmu_remap(current_mm_context()->pagetable, real_phys, vaddr, range->mmuflags);
 		arch_mmu_invalidate_range(vaddr, PAGE_SIZE);
 		if (file_mapping == false || vfs_iscacheable(range->vnode))
 			mm_release_page(mapped_address);
@@ -266,10 +265,10 @@ static int lock_page(vmmspace_t *space, void *vaddr) {
 }
 */
 
-void *vmm_getphysical(void *addr, int flags) {
+void *mm_get_physical_address(void *addr, int flags) {
 	void *aligned_addr = (void *)ROUND_DOWN((uintptr_t)addr, PAGE_SIZE);
 
-	vmmspace_t *space = getspace(aligned_addr);
+	mm_space_t *space = getspace(aligned_addr);
 	if (space == NULL)
 		return NULL;
 
@@ -277,29 +276,28 @@ void *vmm_getphysical(void *addr, int flags) {
 
 	void *physical;
 /*
-	if ((flags & VMM_GET_PHYSICAL_FLAGS_LOCK) && lock_page(space, aligned_addrr)) {
+	if ((flags & MM_GET_PHYSICAL_ADDRESS_FLAGS_LOCK) && lock_page(space, aligned_addrr)) {
 		physical = NULL;
 		goto leave;
 	}*/
 
-	physical = arch_mmu_getphysical(current_vmm_context()->pagetable, aligned_addr);
+	physical = arch_mmu_getphysical(current_mm_context()->pagetable, aligned_addr);
 
-	if (flags & VMM_GET_PHYSICAL_FLAGS_HOLD)
+	if (flags & MM_GET_PHYSICAL_ADDRESS_FLAGS_HOLD)
 		mm_hold_page(physical);
 
-	leave:
 	MUTEX_RELEASE(&space->lock);
 	return physical + ((uintptr_t)addr - (uintptr_t)aligned_addr);
 }
 
 
-void *vmm_map(void *addr, volatile size_t size, int flags, mmuflags_t mmuflags, void *private) {
+void *mm_map(void *addr, volatile size_t size, int flags, mmuflags_t mmuflags, void *private) {
 	if (addr == NULL)
 		addr = KERNELSPACE_START;
 
 	// XXX maps where addr is not page aligned can break
 	addr = (void *)ROUND_DOWN((uintptr_t)addr, PAGE_SIZE);
-	if (flags & VMM_FLAGS_PAGESIZE)
+	if (flags & MM_RANGE_FLAGS_PAGESIZE)
 		size *= PAGE_SIZE;
 	else
 		size = ROUND_UP(size, PAGE_SIZE);
@@ -307,7 +305,7 @@ void *vmm_map(void *addr, volatile size_t size, int flags, mmuflags_t mmuflags,
 	if (size == 0)
 		return NULL;
 
-	vmmspace_t *space = getspace(addr);
+	mm_space_t *space = getspace(addr);
 	if (space == NULL)
 		return NULL;
 
@@ -315,25 +313,25 @@ void *vmm_map(void *addr, volatile size_t size, int flags, mmuflags_t mmuflags,
 		mmuflags |= ARCH_MMU_FLAGS_GLOBAL;
 
 	MUTEX_ACQUIRE(&space->lock);
-	vmmrange_t *range = NULL;
+	mm_range_t *range = NULL;
 
 	void *start = mm_get_free_range(space, addr, size);
 	void *retaddr = NULL;
-	if (((flags & VMM_FLAGS_EXACT) && start != addr) || start == NULL)
+	if (((flags & MM_RANGE_FLAGS_EXACT) && start != addr) || start == NULL)
 		goto cleanup;
 
 	range = mm_alloc_range();
 	if (range == NULL)
 		goto cleanup;
 
-	if (flags & VMM_FLAGS_REPLACE) {
+	if (flags & MM_RANGE_FLAGS_REPLACE) {
 		__assert(addr);
 		retaddr = addr;
 		range->start = addr;
 		range->size = size;
-		range->flags = VMM_PERMANENT_FLAGS_MASK & flags;
+		range->flags = MM_PERMANENT_RANGE_FLAGS_MASK & flags;
 		range->mmuflags = mmuflags;
-		__assert((flags & (VMM_FLAGS_ALLOCATE | VMM_FLAGS_PHYSICAL)) == 0);
+		__assert((flags & (MM_RANGE_FLAGS_ALLOCATE | MM_RANGE_FLAGS_PHYSICAL)) == 0);
 		// make the memory inacessible
 		mm_change_range(space, addr, size, false, flags, 0);
 		arch_mmu_invalidate_range(addr, size);
@@ -343,25 +341,25 @@ void *vmm_map(void *addr, volatile size_t size, int flags, mmuflags_t mmuflags,
 		retaddr = start;
 		range->start = start;
 		range->size = size;
-		range->flags = VMM_PERMANENT_FLAGS_MASK & flags;
+		range->flags = MM_PERMANENT_RANGE_FLAGS_MASK & flags;
 		range->mmuflags = mmuflags;
 	}
 
-	if (flags & VMM_FLAGS_FILE) {
+	if (flags & MM_RANGE_FLAGS_FILE) {
 		// XXX make sure that writes can't happen to executable memory mapped files and check file permissions
-		vmmfiledesc_t *desc = private;
+		mm_map_file_desc_t *desc = private;
 		__assert((desc->offset % PAGE_SIZE) == 0);
 		range->vnode = desc->node;
 		range->offset = desc->offset;
 		VOP_HOLD(desc->node);
 	}
 
-	if (flags & VMM_FLAGS_PHYSICAL) {
+	if (flags & MM_RANGE_FLAGS_PHYSICAL) {
 		// map to allocated virtual memory
 		for (uintmax_t i = 0; i < size; i += PAGE_SIZE) {
-			if (arch_mmu_map(current_vmm_context()->pagetable, (void *)((uintptr_t)private + i), (void *)((uintptr_t)start + i), mmuflags) == false) {
+			if (arch_mmu_map(current_mm_context()->pagetable, (void *)((uintptr_t)private + i), (void *)((uintptr_t)start + i), mmuflags) == false) {
 				for (uintmax_t j = 0; j < size; j += PAGE_SIZE)
-					arch_mmu_unmap(current_vmm_context()->pagetable, (void *)((uintptr_t)start + j));
+					arch_mmu_unmap(current_mm_context()->pagetable, (void *)((uintptr_t)start + j));
 
 				// invalidate here just to be sure
 				arch_mmu_invalidate_range(start, size);
@@ -369,7 +367,7 @@ void *vmm_map(void *addr, volatile size_t size, int flags, mmuflags_t mmuflags,
 				goto cleanup;
 			}
 		}
-	} else if (flags & VMM_FLAGS_ALLOCATE) {
+	} else if (flags & MM_RANGE_FLAGS_ALLOCATE) {
 		// allocate to virtual memory
 		for (uintmax_t i = 0; i < size; i += PAGE_SIZE) {
 			void *allocated = mm_alloc_page(MEMORY_SECTION_DEFAULT);
@@ -378,14 +376,14 @@ void *vmm_map(void *addr, volatile size_t size, int flags, mmuflags_t mmuflags,
 				goto cleanup;
 			}
 
-			if (arch_mmu_map(current_vmm_context()->pagetable, allocated, (void *)((uintptr_t)start + i), mmuflags) == false) {
+			if (arch_mmu_map(current_mm_context()->pagetable, allocated, (void *)((uintptr_t)start + i), mmuflags) == false) {
 				for (uintmax_t j = 0; j < size; j += PAGE_SIZE) {
 						void *virt = (void *)((uintptr_t)start + i);
-						void *physical = arch_mmu_getphysical(current_vmm_context()->pagetable, virt);
+						void *physical = arch_mmu_getphysical(current_mm_context()->pagetable, virt);
 
 						if (physical) {
 							mm_release_page(physical);
-							arch_mmu_unmap(current_vmm_context()->pagetable, virt);
+							arch_mmu_unmap(current_mm_context()->pagetable, virt);
 						}
 				}
 
@@ -407,10 +405,10 @@ void *vmm_map(void *addr, volatile size_t size, int flags, mmuflags_t mmuflags,
 	return retaddr;
 }
 
-void vmm_unmap(void *addr, size_t size, int flags) {
+void mm_unmap(void *addr, size_t size, int flags) {
 	addr = (void *)ROUND_DOWN((uintptr_t)addr, PAGE_SIZE);
 
-	if (flags & VMM_FLAGS_PAGESIZE)
+	if (flags & MM_RANGE_FLAGS_PAGESIZE)
 		size *= PAGE_SIZE;
 	else
 		size = ROUND_UP(size, PAGE_SIZE);
@@ -418,7 +416,7 @@ void vmm_unmap(void *addr, size_t size, int flags) {
 	if (size == 0)
 		return;
 
-	vmmspace_t *space = getspace(addr);
+	mm_space_t *space = getspace(addr);
 	if (space == NULL)
 		return;
 
@@ -437,7 +435,7 @@ void vmm_unmap(void *addr, size_t size, int flags) {
 static scache_t *ctxcache;
 
 static bool ctxctor(scache_t *cache, void *obj) {
-	vmmcontext_t *ctx = obj;
+	mm_context_t *ctx = obj;
 	ctx->space.start = USERSPACE_START;
 	ctx->space.end = USERSPACE_END;
 	MUTEX_INIT(&ctx->space.lock);
@@ -445,13 +443,13 @@ static bool ctxctor(scache_t *cache, void *obj) {
 	return true;
 }
 
-vmmcontext_t *vmm_newcontext() {
+mm_context_t *mm_create_context() {
 	if (ctxcache == NULL) {
-		ctxcache = slab_newcache(sizeof(vmmcontext_t), 0, ctxctor, NULL);
+		ctxcache = slab_newcache(sizeof(mm_context_t), 0, ctxctor, NULL);
 		__assert(ctxcache);
 	}
 
-	vmmcontext_t *ctx = slab_allocate(ctxcache);
+	mm_context_t *ctx = slab_allocate(ctxcache);
 	if (ctx == NULL)
 		return NULL;
 
@@ -464,19 +462,19 @@ vmmcontext_t *vmm_newcontext() {
 	return ctx;
 }
 
-void vmm_destroycontext(vmmcontext_t *context) {
-	vmmcontext_t *oldctx = current_thread()->vmmctx;
-	vmm_switchcontext(context);
-	vmm_unmap(context->space.start, context->space.end - context->space.start, 0);
-	vmm_switchcontext(oldctx);
+void mm_destroy_context(mm_context_t *context) {
+	mm_context_t *oldctx = current_thread()->mmctx;
+	mm_switch_context(context);
+	mm_unmap(context->space.start, context->space.end - context->space.start, 0);
+	mm_switch_context(oldctx);
 	arch_mmu_destroytable(context->pagetable);
 
 	context->space.ranges = NULL;
 	slab_free(ctxcache, context);
 }
 
-vmmcontext_t *vmm_fork(vmmcontext_t *oldcontext) {
-	vmmcontext_t *newcontext = vmm_newcontext();
+mm_context_t *mm_fork_context(mm_context_t *oldcontext) {
+	mm_context_t *newcontext = mm_create_context();
 	if (newcontext == NULL)
 		return NULL;
 
@@ -484,15 +482,15 @@ vmmcontext_t *vmm_fork(vmmcontext_t *oldcontext) {
 
 	rbtree_t *rbtree = oldcontext->space.ranges ? rbtree_first(oldcontext->space.ranges) : NULL;
 	while (rbtree) {
-		vmmrange_t *range = container_of(rbtree, vmmrange_t, rbtree_node);
-		vmmrange_t *newrange = mm_alloc_range();
+		mm_range_t *range = container_of(rbtree, mm_range_t, rbtree_node);
+		mm_range_t *newrange = mm_alloc_range();
 		if (newrange == NULL)
 			goto error;
 
-		memcpy(newrange, range, sizeof(vmmrange_t));
+		memcpy(newrange, range, sizeof(mm_range_t));
 
-		rbtree_insert(&newcontext->space.ranges, &newrange->rbtree_node, vmm_range_compare);
-		if (range->flags & VMM_FLAGS_FILE)
+		rbtree_insert(&newcontext->space.ranges, &newrange->rbtree_node, mm_range_compare);
+		if (range->flags & MM_RANGE_FLAGS_FILE)
 			VOP_HOLD(range->vnode);
 
 		// copy any pages that are mapped
@@ -522,14 +520,14 @@ vmmcontext_t *vmm_fork(vmmcontext_t *oldcontext) {
 	return newcontext;
 	error:
 	MUTEX_RELEASE(&oldcontext->space.lock);
-	vmm_destroycontext(newcontext);
+	mm_destroy_context(newcontext);
 	return NULL;
 }
 
-void vmm_switchcontext(vmmcontext_t *ctx) {
+void mm_switch_context(mm_context_t *ctx) {
 	if (current_thread())
-		current_thread()->vmmctx = ctx;
-	set_current_vmm_context(ctx);
+		current_thread()->mmctx = ctx;
+	set_current_mm_context(ctx);
 	arch_mmu_switch(ctx->pagetable);
 }
 
@@ -542,18 +540,18 @@ extern void *_rodata_end;
 
 extern volatile struct limine_memmap_request mm_page_limine_map;
 
-void vmm_init() {
+void mm_init() {
 	// set up initial state
 	mm_range_init();
 	MUTEX_INIT(&kernelspace.lock);
 
-	vmm_kernelctx.pagetable = arch_mmu_newtable();
-	__assert(vmm_kernelctx.pagetable);
+	mm_kernel_ctx.pagetable = arch_mmu_newtable();
+	__assert(mm_kernel_ctx.pagetable);
 
-	vmm_kernelctx.space.start = USERSPACE_START;
-	vmm_kernelctx.space.end = USERSPACE_END;
+	mm_kernel_ctx.space.start = USERSPACE_START;
+	mm_kernel_ctx.space.end = USERSPACE_END;
 
-	vmm_switchcontext(&vmm_kernelctx);
+	mm_switch_context(&mm_kernel_ctx);
 
 	// map HHDM
 	for (uint64_t i = 0; i < mm_page_limine_map.response->entry_count; ++i) {
@@ -566,16 +564,16 @@ void vmm_init() {
 		if (e->type == LIMINE_MEMMAP_FRAMEBUFFER)
 			mmuflags |= ARCH_MMU_FLAGS_WC;
 
-		__assert(vmm_map(MAKE_HHDM(e->base), e->length, VMM_FLAGS_EXACT, mmuflags, NULL));
+		__assert(mm_map(MAKE_HHDM(e->base), e->length, MM_RANGE_FLAGS_EXACT, mmuflags, NULL));
 	}
 
 	// map kernel
-	__assert(vmm_map(&_text_start, (uintptr_t)&_text_end - (uintptr_t)&_text_start, VMM_FLAGS_EXACT, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_GLOBAL, NULL));
-	__assert(vmm_map(&_rodata_start, (uintptr_t)&_rodata_end - (uintptr_t)&_rodata_start, VMM_FLAGS_EXACT, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_NOEXEC | ARCH_MMU_FLAGS_GLOBAL, NULL));
-	__assert(vmm_map(&_data_start, (uintptr_t)&_data_end - (uintptr_t)&_data_start, VMM_FLAGS_EXACT, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC | ARCH_MMU_FLAGS_GLOBAL, NULL));
+	__assert(mm_map(&_text_start, (uintptr_t)&_text_end - (uintptr_t)&_text_start, MM_RANGE_FLAGS_EXACT, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_GLOBAL, NULL));
+	__assert(mm_map(&_rodata_start, (uintptr_t)&_rodata_end - (uintptr_t)&_rodata_start, MM_RANGE_FLAGS_EXACT, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_NOEXEC | ARCH_MMU_FLAGS_GLOBAL, NULL));
+	__assert(mm_map(&_data_start, (uintptr_t)&_data_end - (uintptr_t)&_data_start, MM_RANGE_FLAGS_EXACT, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC | ARCH_MMU_FLAGS_GLOBAL, NULL));
 
 	// null page
-	vmm_map(MAKE_HHDM(NULL), PAGE_SIZE, VMM_FLAGS_EXACT, ARCH_MMU_FLAGS_NOEXEC, NULL);
+	mm_map(MAKE_HHDM(NULL), PAGE_SIZE, MM_RANGE_FLAGS_EXACT, ARCH_MMU_FLAGS_NOEXEC, NULL);
 
 	// zero page
 	zeropage = mm_alloc_page(MEMORY_SECTION_DEFAULT);
@@ -584,8 +582,8 @@ void vmm_init() {
 	printspace(&kernelspace);
 }
 
-INIT_ROUTINE_DEFINE(vmm, INIT_ROUTINE_FLAGS_NONE, vmm_init, mmu, slab_early);
+INIT_ROUTINE_DEFINE(mm, INIT_ROUTINE_FLAGS_NONE, mm_init, mmu, slab_early);
 
-void vmm_apinit() {
-	vmm_switchcontext(&vmm_kernelctx);
+void mm_apinit() {
+	mm_switch_context(&mm_kernel_ctx);
 }

kernel-src/mm/range.c

@@ -1,30 +1,29 @@
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <logging.h>
 #include <kernel/page.h>
 #include <util.h>
 #include <arch/cpu.h>
 #include <kernel/slab.h>
-#include <kernel/mm.h>
 
 #define RANGE_TOP(x) (void *)((uintptr_t)x->start + x->size)
 
 static scache_t *range_cache;
 
 void mm_range_init(void) {
-	range_cache = slab_create_new_cache_from_pmm(sizeof(vmmrange_t), 0, NULL, NULL);
+	range_cache = slab_create_new_cache_from_pmm(sizeof(mm_range_t), 0, NULL, NULL);
 	__assert(range_cache);
 }
 
-vmmrange_t *mm_alloc_range(void) {
+mm_range_t *mm_alloc_range(void) {
 	return slab_allocate(range_cache);
 }
 
-void mm_free_range(vmmrange_t *range) {
+void mm_free_range(mm_range_t *range) {
 	slab_free(range_cache, range);
 }
 
 static int rbtree_value_compare(void *addr, rbtree_t *node) {
-	vmmrange_t *range = container_of(node, vmmrange_t, rbtree_node);
+	mm_range_t *range = container_of(node, mm_range_t, rbtree_node);
 	void *range_top = RANGE_TOP(range);
 
 	if (addr >= range_top)
@@ -37,13 +36,13 @@ static int rbtree_value_compare(void *addr, rbtree_t *node) {
 }
 
 // get a range from an address
-vmmrange_t *mm_get_range(vmmspace_t *space, void *addr) {
+mm_range_t *mm_get_range(mm_space_t *space, void *addr) {
 	rbtree_t *rbtree = rbtree_lookup(space->ranges, addr, rbtree_value_compare);
-	return container_of(rbtree, vmmrange_t, rbtree_node);
+	return container_of(rbtree, mm_range_t, rbtree_node);
 }
 
 // get start of range that fits specific size from specific offset
-void *mm_get_free_range(vmmspace_t *space, void *addr, size_t size) {
+void *mm_get_free_range(mm_space_t *space, void *addr, size_t size) {
 	rbtree_t *rbtree = space->ranges;
 	if (addr == NULL)
 		addr = space->start;
@@ -53,7 +52,7 @@ void *mm_get_free_range(vmmspace_t *space, void *addr, size_t size) {
 		return addr;
 
 	rbtree = rbtree_first(rbtree);
-	vmmrange_t *range = container_of(rbtree, vmmrange_t, rbtree_node);
+	mm_range_t *range = container_of(rbtree, mm_range_t, rbtree_node);
 
 	// if theres free space before the first range
 	if (range->start != space->start && addr < range->start && (uintptr_t)range->start - (uintptr_t)addr >= size)
@@ -62,7 +61,7 @@ void *mm_get_free_range(vmmspace_t *space, void *addr, size_t size) {
 	// check for space between two ranges
 	rbtree_t *next = rbtree_successor(rbtree);
 	while (next) {
-		vmmrange_t *next_range = container_of(next, vmmrange_t, rbtree_node);
+		mm_range_t *next_range = container_of(next, mm_range_t, rbtree_node);
 
 		void *range_top = RANGE_TOP(range);
 		if (addr < range_top)
@@ -75,7 +74,7 @@ void *mm_get_free_range(vmmspace_t *space, void *addr, size_t size) {
 		}
 
 		rbtree = next;
-		range = container_of(rbtree, vmmrange_t, rbtree_node);
+		range = container_of(rbtree, mm_range_t, rbtree_node);
 
 		next = rbtree_successor(next);
 	}
@@ -92,8 +91,8 @@ void *mm_get_free_range(vmmspace_t *space, void *addr, size_t size) {
 }
 
 static int rbtree_compare(rbtree_t *a, rbtree_t *b) {
-	vmmrange_t *range_a = container_of(a, vmmrange_t, rbtree_node);
-	vmmrange_t *range_b = container_of(b, vmmrange_t, rbtree_node);
+	mm_range_t *range_a = container_of(a, mm_range_t, rbtree_node);
+	mm_range_t *range_b = container_of(b, mm_range_t, rbtree_node);
 
 	if (range_a->start == range_b->start)
 		return 0;
@@ -101,21 +100,21 @@ static int rbtree_compare(rbtree_t *a, rbtree_t *b) {
 	return range_a->start > range_b->start ? 1 : -1;
 }
 
-static bool ranges_compatible(vmmrange_t *prev, vmmrange_t *next) {
+static bool ranges_compatible(mm_range_t *prev, mm_range_t *next) {
 	void *prev_range_top = RANGE_TOP(prev);
 
 	return prev_range_top == next->start && prev->flags == next->flags && prev->mmuflags == next->mmuflags && // general compatibility
-		((prev->flags & VMM_FLAGS_FILE) == 0 || (prev->vnode == next->vnode && prev->offset + prev->size == next->offset)); // same file mapping, if any
+		((prev->flags & MM_RANGE_FLAGS_FILE) == 0 || (prev->vnode == next->vnode && prev->offset + prev->size == next->offset)); // same file mapping, if any
 }
 
-void mm_insert_range(vmmspace_t *space, vmmrange_t *new_range) {
+void mm_insert_range(mm_space_t *space, mm_range_t *new_range) {
 	rbtree_insert(&space->ranges, &new_range->rbtree_node, rbtree_compare);
 
 	rbtree_t *successor = rbtree_successor(&new_range->rbtree_node);
 	rbtree_t *predecessor = rbtree_predecessor(&new_range->rbtree_node);
 
-	vmmrange_t *next_range = successor ? container_of(successor, vmmrange_t, rbtree_node) : NULL;
-	vmmrange_t *prev_range = predecessor ? container_of(predecessor, vmmrange_t, rbtree_node) : NULL;
+	mm_range_t *next_range = successor ? container_of(successor, mm_range_t, rbtree_node) : NULL;
+	mm_range_t *prev_range = predecessor ? container_of(predecessor, mm_range_t, rbtree_node) : NULL;
 
 	// fragmentation checking
 
@@ -125,7 +124,7 @@ void mm_insert_range(vmmspace_t *space, vmmrange_t *new_range) {
 
 		rbtree_remove(&space->ranges, &next_range->rbtree_node);
 		mm_free_range(next_range);
-		if (new_range->flags & VMM_FLAGS_FILE) {
+		if (new_range->flags & MM_RANGE_FLAGS_FILE) {
 			VOP_RELEASE(new_range->vnode);
 		}
 	}
@@ -136,19 +135,19 @@ void mm_insert_range(vmmspace_t *space, vmmrange_t *new_range) {
 
 		rbtree_remove(&space->ranges, &new_range->rbtree_node);
 		mm_free_range(new_range);
-		if (prev_range->flags & VMM_FLAGS_FILE) {
+		if (prev_range->flags & MM_RANGE_FLAGS_FILE) {
 			VOP_RELEASE(prev_range->vnode);
 		}
 	}
 }
 
-void mm_destroy_range(vmmrange_t *range, uintmax_t _offset, size_t size, int flags) {
+void mm_destroy_range(mm_range_t *range, uintmax_t _offset, size_t size, int flags) {
 	// TODO find first
 	uintmax_t top = _offset + size;
 
 	for (uintmax_t offset = _offset; offset < top; offset += PAGE_SIZE) {
 		void *vaddr = (void *)((uintptr_t)range->start + offset);
-		void *physical = arch_mmu_getphysical(current_vmm_context()->pagetable, vaddr);
+		void *physical = arch_mmu_getphysical(current_mm_context()->pagetable, vaddr);
 		if (physical == NULL)
 			continue;
 
@@ -156,34 +155,34 @@ void mm_destroy_range(vmmrange_t *range, uintmax_t _offset, size_t size, int fla
 		proc_t *proc = thread ? thread->proc : NULL;
 		cred_t *cred = proc ? &proc->cred : NULL;
 
-		if ((range->flags & VMM_FLAGS_FILE) && ((range->flags & VMM_FLAGS_SHARED) || vfs_iscacheable(range->vnode) == false)) {
+		if ((range->flags & MM_RANGE_FLAGS_FILE) && ((range->flags & MM_RANGE_FLAGS_SHARED) || vfs_iscacheable(range->vnode) == false)) {
 			// shared file mapping or non cacheable mapping
 			if (vfs_iscacheable(range->vnode) == false) {
 				// non cacheable mapping
 				VOP_LOCK(range->vnode);
-				__assert(VOP_MUNMAP(range->vnode, vaddr, range->offset + offset, mmuflagstovnodeflags(range->mmuflags) | (range->flags & VMM_FLAGS_SHARED ? V_FFLAGS_SHARED : 0), cred) == 0);
+				__assert(VOP_MUNMAP(range->vnode, vaddr, range->offset + offset, mm_mmu_flags_to_vnode_flags(range->mmuflags) | (range->flags & MM_RANGE_FLAGS_SHARED ? V_FFLAGS_SHARED : 0), cred) == 0);
 				VOP_UNLOCK(range->vnode);
-			} else if (arch_mmu_iswritable(current_vmm_context()->pagetable, vaddr)) {
+			} else if (arch_mmu_iswritable(current_mm_context()->pagetable, vaddr)) {
 				// dirty page cache mapping
-				arch_mmu_unmap(current_vmm_context()->pagetable, vaddr);
+				arch_mmu_unmap(current_mm_context()->pagetable, vaddr);
 				VOP_LOCK(range->vnode);
 				mm_cache_make_dirty(mm_get_page(physical));
 				VOP_UNLOCK(range->vnode);
 				mm_release_page(physical);
 			} else {
 				// non dirty page mapping
-				arch_mmu_unmap(current_vmm_context()->pagetable, vaddr);
+				arch_mmu_unmap(current_mm_context()->pagetable, vaddr);
 				mm_release_page(physical);
 			}
 		} else {
 			// anonymous, physical or private non character device mapping
-			arch_mmu_unmap(current_vmm_context()->pagetable, vaddr);
-			if ((range->flags & VMM_FLAGS_PHYSICAL) == 0)
+			arch_mmu_unmap(current_mm_context()->pagetable, vaddr);
+			if ((range->flags & MM_RANGE_FLAGS_PHYSICAL) == 0)
 				mm_release_page(physical);
 		}
 	}
 
-	if ((range->flags & VMM_FLAGS_FILE) && range->size == size)
+	if ((range->flags & MM_RANGE_FLAGS_FILE) && range->size == size)
 		VOP_RELEASE(range->vnode);
 }
 
@@ -191,16 +190,16 @@ void mm_destroy_range(vmmrange_t *range, uintmax_t _offset, size_t size, int fla
 	if (((n) & (f)) == 0 && ((c) & (f))) \
 			m |= f;
 
-static void change_mmu_range(vmmrange_t *range, void *base, size_t size, mmuflags_t new_flags) {
+static void change_mmu_range(mm_range_t *range, void *base, size_t size, mmuflags_t new_flags) {
 	for (uintmax_t offset = 0; offset < size; offset += PAGE_SIZE) {
 		void *address = (void *)((uintptr_t)base + offset);
 
 		mmuflags_t current_flags;
 		// if page is not mapped, do nothing
-		if (arch_mmu_getflags(current_vmm_context()->pagetable, address, &current_flags) == false)
+		if (arch_mmu_getflags(current_mm_context()->pagetable, address, &current_flags) == false)
 			continue;
 
-		void *physical = arch_mmu_getphysical(current_vmm_context()->pagetable, address);
+		void *physical = arch_mmu_getphysical(current_mm_context()->pagetable, address);
 
 		uintmax_t mask = 0;
 		// check which flags are currently set and will be unset
@@ -209,9 +208,9 @@ static void change_mmu_range(vmmrange_t *range, void *base, size_t size, mmuflag
 		CHANGE_MASK_CHECK(mask, ARCH_MMU_FLAGS_USER, current_flags, new_flags);
 		CHANGE_MASK_CHECK(mask, ARCH_MMU_FLAGS_NOEXEC, current_flags, new_flags);
 
-		if ((range->flags & VMM_FLAGS_FILE) && (range->flags & VMM_FLAGS_SHARED) && (mask & ARCH_MMU_FLAGS_WRITE) && vfs_iscacheable(range->vnode)) {
+		if ((range->flags & MM_RANGE_FLAGS_FILE) && (range->flags & MM_RANGE_FLAGS_SHARED) && (mask & ARCH_MMU_FLAGS_WRITE) && vfs_iscacheable(range->vnode)) {
 			// removing write permissions from a writeable dirty shared mapped page, mark it as dirty, as
-			// it won't be marked dirty upon a vmm_unmap after this
+			// it won't be marked dirty upon a mm_unmap after this
 			page_t *page = mm_get_page(physical);
 			VOP_LOCK(range->vnode);
 			mm_cache_make_dirty(page);
@@ -220,21 +219,21 @@ static void change_mmu_range(vmmrange_t *range, void *base, size_t size, mmuflag
 
 		// we will only change the mapping if the permissions decreased
 		if (mask) {
-			arch_mmu_remap(current_vmm_context()->pagetable, physical, address, current_flags & ~mask);
+			arch_mmu_remap(current_mm_context()->pagetable, physical, address, current_flags & ~mask);
 		}
 	}
 }
 
-static inline bool can_write_vnode(vmmrange_t *range) {
+static inline bool can_write_vnode(mm_range_t *range) {
 	VOP_LOCK(range->vnode);
 	int error = VOP_ACCESS(range->vnode, V_ACCESS_WRITE, &current_thread()->proc->cred);
 	VOP_UNLOCK(range->vnode);
 	return error == 0;
 }
 
-int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, int flags, mmuflags_t new_mmuflags) {
+int mm_change_range(mm_space_t *space, void *address, size_t size, bool free, int flags, mmuflags_t new_mmuflags) {
 	void *top = (void *)((uintptr_t)address + size);
-	vmmrange_t *new_range = NULL;
+	mm_range_t *new_range = NULL;
 
 	if (space->ranges == NULL)
 		return 0;
@@ -251,7 +250,7 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 
 	// get first range after address
 	rbtree_t *rbtree = rbtree_find_first_larger_equal(space->ranges, address, rbtree_value_compare);
-	vmmrange_t *range = container_of(rbtree, vmmrange_t, rbtree_node);
+	mm_range_t *range = container_of(rbtree, mm_range_t, rbtree_node);
 
 	if (rbtree == NULL)
 		goto leave;
@@ -259,27 +258,27 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 	// check if we actually start at the predecessor
 	rbtree_t *predecessor = rbtree_predecessor(rbtree);
 	if (predecessor) {
-		vmmrange_t *predecessor_range = container_of(predecessor, vmmrange_t, rbtree_node);
+		mm_range_t *predecessor_range = container_of(predecessor, mm_range_t, rbtree_node);
 		if (RANGE_TOP(predecessor_range) > address) {
 			rbtree = predecessor;
 			range = predecessor_range;
 		}
 	}
 
-	// rbtree now has the first vmm range to be unmapped/remapped
+	// rbtree now has the first mm range to be unmapped/remapped
 
 	// is the range we want to change in the middle of a mapping?
 	if (address > range->start && top < RANGE_TOP(range)) {
 		// split the mapping
 
 		// check for write permission if changing a shared file mapping
-		if (free == false && (flags & VMM_FLAGS_CREDCHECK) && (range->flags & VMM_FLAGS_SHARED) &&
-			(range->flags & VMM_FLAGS_FILE) && can_write_vnode(range) == false) {
+		if (free == false && (flags & MM_RANGE_FLAGS_CREDCHECK) && (range->flags & MM_RANGE_FLAGS_SHARED) &&
+			(range->flags & MM_RANGE_FLAGS_FILE) && can_write_vnode(range) == false) {
 			error = EACCES;
 			goto leave;
 		}
 
-		vmmrange_t *split_range = mm_alloc_range();
+		mm_range_t *split_range = mm_alloc_range();
 		if (range == NULL) {
 			error = ENOMEM;
 			goto leave;
@@ -297,7 +296,7 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 		split_range->size = (uintptr_t)RANGE_TOP(range) - (uintptr_t)split_range->start;
 		range->size = (uintptr_t)address - (uintptr_t)range->start;
 
-		if (range->flags & VMM_FLAGS_FILE) {
+		if (range->flags & MM_RANGE_FLAGS_FILE) {
 			VOP_HOLD(range->vnode);
 			split_range->offset += range->size + size;
 		}
@@ -313,7 +312,7 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 
 			change_mmu_range(range, new_range->start, new_range->size, new_range->mmuflags);
 
-			if (range->flags & VMM_FLAGS_FILE) {
+			if (range->flags & MM_RANGE_FLAGS_FILE) {
 				new_range->vnode = range->vnode;
 				new_range->offset = range->offset + range->size;
 				VOP_HOLD(range->vnode);
@@ -331,8 +330,8 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 		// shrink the mapping
 
 		// permission checking
-		if (free == false && (flags & VMM_FLAGS_CREDCHECK) && (range->flags & VMM_FLAGS_SHARED) &&
-			(range->flags & VMM_FLAGS_FILE) && can_write_vnode(range) == false) {
+		if (free == false && (flags & MM_RANGE_FLAGS_CREDCHECK) && (range->flags & MM_RANGE_FLAGS_SHARED) &&
+			(range->flags & MM_RANGE_FLAGS_FILE) && can_write_vnode(range) == false) {
 			error = EACCES;
 			goto leave;
 		}
@@ -352,7 +351,7 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 
 			change_mmu_range(range, new_range->start, new_range->size, new_range->mmuflags);
 
-			if (range->flags & VMM_FLAGS_FILE) {
+			if (range->flags & MM_RANGE_FLAGS_FILE) {
 				new_range->vnode = range->vnode;
 				new_range->offset = range->offset + range->size;
 				VOP_HOLD(range->vnode);
@@ -375,7 +374,7 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 		if (rbtree == NULL)
 			goto leave;
 
-		range = container_of(rbtree, vmmrange_t, rbtree_node);
+		range = container_of(rbtree, mm_range_t, rbtree_node);
 		if (RANGE_TOP(range) > top)
 			break;
 
@@ -388,8 +387,8 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 			mm_free_range(range);
 		} else {
 			// permission check
-			if ((flags & VMM_FLAGS_CREDCHECK) && (range->flags & VMM_FLAGS_SHARED) &&
-				(range->flags & VMM_FLAGS_FILE) && can_write_vnode(range) == false) {
+			if ((flags & MM_RANGE_FLAGS_CREDCHECK) && (range->flags & MM_RANGE_FLAGS_SHARED) &&
+				(range->flags & MM_RANGE_FLAGS_FILE) && can_write_vnode(range) == false) {
 				error = EACCES;
 				goto leave;
 			}
@@ -404,8 +403,8 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 		// move the start of the range
 
 		// permission check
-		if (free == false && (flags & VMM_FLAGS_CREDCHECK) && (range->flags & VMM_FLAGS_SHARED) &&
-			(range->flags & VMM_FLAGS_FILE) && can_write_vnode(range) == false) {
+		if (free == false && (flags & MM_RANGE_FLAGS_CREDCHECK) && (range->flags & MM_RANGE_FLAGS_SHARED) &&
+			(range->flags & MM_RANGE_FLAGS_FILE) && can_write_vnode(range) == false) {
 			error = EACCES;
 			goto leave;
 		}
@@ -417,7 +416,7 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 		range->start = (void *)((uintptr_t)range->start + difference);
 		range->size -= difference;
 
-		if (range->flags & VMM_FLAGS_FILE)
+		if (range->flags & MM_RANGE_FLAGS_FILE)
 			range->offset += difference;
 
 		if (free == false) {
@@ -429,7 +428,7 @@ int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, in
 
 			change_mmu_range(range, new_range->start, new_range->size, new_range->mmuflags);
 
-			if (range->flags & VMM_FLAGS_FILE) {
+			if (range->flags & MM_RANGE_FLAGS_FILE) {
 				new_range->vnode = range->vnode;
 				new_range->offset = range->offset - difference;
 				VOP_HOLD(range->vnode);

kernel-src/mm/slab.c

@@ -1,5 +1,5 @@
 #include <kernel/slab.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/page.h>
 #include <logging.h>
 #include <util.h>
@@ -47,7 +47,7 @@ static inline bool grow_cache(scache_t *cache) {
 			return false;
 
 		size_t byte_size = cache->slab_object_count * cache->true_size;
-		slab->base = vmm_map(NULL, byte_size, VMM_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
+		slab->base = mm_map(NULL, byte_size, MM_RANGE_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
 		if (unlikely(slab->base == NULL)) {
 			slab_free(slab_cache, slab);
 			return false;
@@ -68,7 +68,7 @@ static inline bool grow_cache(scache_t *cache) {
 			for (int j = 0; j < i; ++j)
 				slab_free(indirect_cache, indirect[j]);
 			
-			vmm_unmap(slab->base, byte_size, 0);
+			mm_unmap(slab->base, byte_size, 0);
 
 			slab_free(slab_cache, slab);
 			return false;
@@ -454,9 +454,9 @@ static bool magazine_ctor(scache_t *, void *obj) {
 	return true;
 }
 
-static scache_t *create_new_from_vmm(size_t size, size_t alignment, bool (*ctor)(scache_t *, void *), void (*dtor)(scache_t *, void *)) {
+static scache_t *create_new_from_mm(size_t size, size_t alignment, bool (*ctor)(scache_t *, void *), void (*dtor)(scache_t *, void *)) {
 	size_t cache_size = sizeof(scache_t) + sizeof(cache_per_cpu_t) * arch_smp_get_cpu_count();
-	scache_t *cache = vmm_map(NULL, cache_size, VMM_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
+	scache_t *cache = mm_map(NULL, cache_size, MM_RANGE_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
 	__assert(cache);
 	__assert(slab_initialize(cache, size, alignment, ctor, dtor));
 	return cache;
@@ -472,7 +472,7 @@ scache_t *slab_create_new_cache_from_pmm(size_t size, size_t alignment, bool (*c
 	return cache;
 }
 
-// initializes enough to allow for the vmm to bootstrap
+// initializes enough to allow for the mm to bootstrap
 void slab_early_init(void) {
 	size_t magazine_object_size = sizeof(magazine_t) + sizeof(void *) * MAGAZINE_SIZE;
 	__assert(magazine_object_size < SLAB_INDIRECT_CUTOFF);
@@ -483,11 +483,11 @@ void slab_early_init(void) {
 void slab_init(void) {
 	size_t cache_size = sizeof(scache_t) + sizeof(cache_per_cpu_t) * arch_smp_get_cpu_count();
 	// the cache of caches needs for the slab and indirect caches to be up
-	slab_cache = create_new_from_vmm(sizeof(slab_t), 0, NULL, NULL);
-	indirect_cache = create_new_from_vmm(sizeof(slab_indirect_t), 0, NULL, NULL);
-	indirect_table_cache = create_new_from_vmm(sizeof(slab_indirect_t *) * 32, 0, NULL, NULL);
-	self_cache = create_new_from_vmm(cache_size, 0, NULL, NULL);
+	slab_cache = create_new_from_mm(sizeof(slab_t), 0, NULL, NULL);
+	indirect_cache = create_new_from_mm(sizeof(slab_indirect_t), 0, NULL, NULL);
+	indirect_table_cache = create_new_from_mm(sizeof(slab_indirect_t *) * 32, 0, NULL, NULL);
+	self_cache = create_new_from_mm(cache_size, 0, NULL, NULL);
 }
 
-INIT_ROUTINE_DEFINE(slab, INIT_ROUTINE_FLAGS_NONE, slab_init, vmm);
+INIT_ROUTINE_DEFINE(slab, INIT_ROUTINE_FLAGS_NONE, slab_init, mm);
 INIT_ROUTINE_DEFINE(slab_early, INIT_ROUTINE_FLAGS_NONE, slab_early_init, mm_page);

kernel-src/sys/elf.c

@@ -3,7 +3,7 @@
 #include <errno.h>
 #include <kernel/alloc.h>
 #include <util.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/usercopy.h>
 #include <arch/cpu.h>
 
@@ -67,7 +67,7 @@ static int load(vnode_t *vnode, elfph64_t *ph) {
 		size_t firstpagecount = PAGE_SIZE - firstpageoffset;
 		firstpagecount = fsize > firstpagecount ? firstpagecount : fsize;
 		void *page = (void *)ROUND_DOWN(mempos, PAGE_SIZE);
-		if (vmm_map(page, PAGE_SIZE, VMM_FLAGS_EXACT | VMM_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_USER | ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE, NULL) == NULL)
+		if (mm_map(page, PAGE_SIZE, MM_RANGE_FLAGS_EXACT | MM_RANGE_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_USER | ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE, NULL) == NULL)
 			return ENOMEM;
 
 		error = readexact(vnode, (void *)mempos, firstpagecount, foffset);
@@ -98,7 +98,7 @@ static int load(vnode_t *vnode, elfph64_t *ph) {
 			mempos += remainingmsize;
 		}
 
-		error = vmm_changemmuflags(page, PAGE_SIZE, mmuflags, 0);
+		error = mm_change_mmu_flags(page, PAGE_SIZE, mmuflags, 0);
 		if (error)
 			return error;
 	}
@@ -106,11 +106,11 @@ static int load(vnode_t *vnode, elfph64_t *ph) {
 	// map middle of file
 	size_t filepagecount = fsize / PAGE_SIZE;
 	if (filepagecount) {
-		vmmfiledesc_t vfd = {
+		mm_map_file_desc_t vfd = {
 			.node = vnode,
 			.offset = foffset
 		};
-		if (vmm_map((void *)mempos, filepagecount, VMM_FLAGS_EXACT | VMM_FLAGS_PAGESIZE | VMM_FLAGS_FILE, mmuflags, &vfd) == NULL)
+		if (mm_map((void *)mempos, filepagecount, MM_RANGE_FLAGS_EXACT | MM_RANGE_FLAGS_PAGESIZE | MM_RANGE_FLAGS_FILE, mmuflags, &vfd) == NULL)
 			return ENOMEM;
 		size_t bytesize = filepagecount * PAGE_SIZE;
 		mempos += bytesize;
@@ -122,7 +122,7 @@ static int load(vnode_t *vnode, elfph64_t *ph) {
 	// map end of file
 	size_t lastpagecount = fsize % PAGE_SIZE;
 	if (lastpagecount) {
-		if (vmm_map((void *)mempos, PAGE_SIZE, VMM_FLAGS_EXACT | VMM_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_USER | ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE, NULL) == NULL)
+		if (mm_map((void *)mempos, PAGE_SIZE, MM_RANGE_FLAGS_EXACT | MM_RANGE_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_USER | ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE, NULL) == NULL)
 			return ENOMEM;
 
 		error = readexact(vnode, (void *)mempos, lastpagecount, foffset);
@@ -135,7 +135,7 @@ static int load(vnode_t *vnode, elfph64_t *ph) {
 
 		msize -= msize > PAGE_SIZE ? PAGE_SIZE : msize;
 
-		error = vmm_changemmuflags((void *)mempos, PAGE_SIZE, mmuflags, 0);
+		error = mm_change_mmu_flags((void *)mempos, PAGE_SIZE, mmuflags, 0);
 		if (error)
 			return error;
 
@@ -144,7 +144,7 @@ static int load(vnode_t *vnode, elfph64_t *ph) {
 
 	// zero some parts if needed
 	if (msize) {
-		if (vmm_map((void *)mempos, msize, VMM_FLAGS_EXACT, mmuflags, NULL) == NULL)
+		if (mm_map((void *)mempos, msize, MM_RANGE_FLAGS_EXACT, mmuflags, NULL) == NULL)
 			return ENOMEM;
 	}
 
@@ -255,12 +255,12 @@ void *elf_preparestack(void *top, auxv64list_t *auxv64, char **argv, char **envp
 
 	size_t initialsizeround = ROUND_UP(initialsize, PAGE_SIZE);
 	void *initialpagebase = (void *)((uintptr_t)top - initialsizeround);
-	if (vmm_map(initialpagebase, initialsizeround, VMM_FLAGS_ALLOCATE | VMM_FLAGS_EXACT, STACK_MMUFLAGS, NULL) == NULL)
+	if (mm_map(initialpagebase, initialsizeround, MM_RANGE_FLAGS_ALLOCATE | MM_RANGE_FLAGS_EXACT, STACK_MMUFLAGS, NULL) == NULL)
 		return NULL;
 
 	void *stackbase = (void *)((uintptr_t)top - STACK_SIZE);
 	size_t unallocatedsize = STACK_SIZE - initialsizeround;
-	if (vmm_map(stackbase, unallocatedsize, VMM_FLAGS_EXACT, STACK_MMUFLAGS, NULL) == NULL)
+	if (mm_map(stackbase, unallocatedsize, MM_RANGE_FLAGS_EXACT, STACK_MMUFLAGS, NULL) == NULL)
 		return NULL;
 
 	top = (void *)((uintptr_t)top - STACK_TOP_BUFFER);

kernel-src/sys/proc.c

@@ -367,11 +367,11 @@ void proc_run_init() {
 
 	printf("proc: loading %s\n", init_path);
 
-	vmmcontext_t *vmmctx = vmm_newcontext();
-	__assert(vmmctx);
+	mm_context_t *mmctx = mm_create_context();
+	__assert(mmctx);
 
 	// leave kernel context to load elf
-	vmm_switchcontext(vmmctx);
+	mm_switch_context(mmctx);
 
 	proc_t *proc = proc_create();
 	__assert(proc);
@@ -440,7 +440,7 @@ void proc_run_init() {
 	__assert(stack);
 
 	// reenter kernel context
-	vmm_switchcontext(&vmm_kernelctx);
+	mm_switch_context(&mm_kernel_ctx);
 
 	thread_t *uthread = sched_newthread(entry, PAGE_SIZE * 16, 1, proc, stack);
 	__assert(uthread);
@@ -448,7 +448,7 @@ void proc_run_init() {
 	proc->threadlist = uthread;
 	uthread->procnext = NULL;
 
-	uthread->vmmctx = vmmctx;
+	uthread->mmctx = mmctx;
 	sched_queue(uthread);
 
 	VOP_RELEASE(initnode);

kernel-src/sys/scheduler/scheduler.c

@@ -2,7 +2,7 @@
 #include <logging.h>
 #include <arch/cpu.h>
 #include <spinlock.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/alloc.h>
 #include <errno.h>
 #include <kernel/elf.h>
@@ -25,8 +25,8 @@ static __attribute__((noreturn)) void switch_thread(thread_t *thread) {
 
 	current_cpu()->thread = thread;
 
-	if(current == NULL || thread->vmmctx != current->vmmctx)
-		vmm_switchcontext(thread->vmmctx);
+	if(current == NULL || thread->mmctx != current->mmctx)
+		mm_switch_context(thread->mmctx);
 
 	current_cpu()->intstatus = ARCH_CONTEXT_INTSTATUS(&thread->context);
 	thread->cpu = current_cpu();
@@ -350,7 +350,7 @@ void sched_ap_entry() {
 	dpc_prepare(&current_cpu()->reschedule_dpc, sched_reschedule_dpc);
 	set_up_bitmaps();
 
-	current_cpu()->schedulerstack = vmm_map(NULL, SCHEDULER_STACK_SIZE, VMM_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
+	current_cpu()->schedulerstack = mm_map(NULL, SCHEDULER_STACK_SIZE, MM_RANGE_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
 	__assert(current_cpu()->schedulerstack);
 	current_cpu()->schedulerstack = (void *)((uintptr_t)current_cpu()->schedulerstack + SCHEDULER_STACK_SIZE);
 
@@ -381,7 +381,7 @@ void sched_init() {
 
 	__assert(bitmap_init(&sched_idle_cpu_bitmap, arch_smp_get_cpu_count()) == 0);
 
-	current_cpu()->schedulerstack = vmm_map(NULL, SCHEDULER_STACK_SIZE, VMM_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
+	current_cpu()->schedulerstack = mm_map(NULL, SCHEDULER_STACK_SIZE, MM_RANGE_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_NOEXEC, NULL);
 	__assert(current_cpu()->schedulerstack);
 	current_cpu()->schedulerstack = (void *)((uintptr_t)current_cpu()->schedulerstack + SCHEDULER_STACK_SIZE);
 

kernel-src/sys/syscalls/clockget.c

@@ -2,7 +2,7 @@
 #include <kernel/abi.h>
 #include <time.h>
 #include <kernel/timekeeper.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 
 syscallret_t syscall_clockget(context_t *, int clockid, timespec_t *tp) {
 	syscallret_t ret = {

kernel-src/sys/syscalls/execve.c

@@ -2,7 +2,7 @@
 #include <kernel/alloc.h>
 #include <string.h>
 #include <errno.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <arch/cpu.h>
 #include <kernel/elf.h>
 #include <kernel/scheduler.h>
@@ -67,8 +67,8 @@ static syscallret_t execve(context_t *context, char *upath, char *uargv[], char
 	size_t envsize = 0;
 	char **argv = NULL;
 	char **envp = NULL;
-	vmmcontext_t *vmmctx = NULL;
-	vmmcontext_t *oldctx = current_vmm_context();
+	mm_context_t *mmctx = NULL;
+	mm_context_t *oldctx = current_mm_context();
 	vnode_t *node = NULL;
 	vnode_t *refnode = NULL;
 	char *interp = NULL;
@@ -237,13 +237,13 @@ static syscallret_t execve(context_t *context, char *upath, char *uargv[], char
 		}
 	}
 
-	vmmctx = vmm_newcontext();
-	if (vmmctx == NULL) {
+	mmctx = mm_create_context();
+	if (mmctx == NULL) {
 		ret.errno = ENOMEM;
 		goto error;
 	}
 
-	vmm_switchcontext(vmmctx);
+	mm_switch_context(mmctx);
 
 	auxv64list_t auxv64;
 	void *entry;
@@ -321,7 +321,7 @@ static syscallret_t execve(context_t *context, char *upath, char *uargv[], char
 			proc->signals.actions[i].address = SIG_IGN;
 	}
 
-	vmm_destroycontext(oldctx);
+	mm_destroy_context(oldctx);
 	CTX_SP(context) = (uint64_t)stack;
 	CTX_IP(context) = (uint64_t)entry;
 
@@ -339,9 +339,9 @@ static syscallret_t execve(context_t *context, char *upath, char *uargv[], char
 	if (envp)
 		freevec(envp);
 
-	if (vmmctx && ret.errno) {
-		vmm_switchcontext(oldctx);
-		vmm_destroycontext(vmmctx);
+	if (mmctx && ret.errno) {
+		mm_switch_context(oldctx);
+		mm_destroy_context(mmctx);
 	}
 
 	if (refnode)

kernel-src/sys/syscalls/fork.c

@@ -27,9 +27,9 @@ syscallret_t syscall_fork(context_t *ctx) {
 		goto cleanup;
 	}
 
-	nthread->vmmctx = vmm_fork(current_thread()->vmmctx);
+	nthread->mmctx = mm_fork_context(current_thread()->mmctx);
 
-	if (nthread->vmmctx == NULL) {
+	if (nthread->mmctx == NULL) {
 		ret.errno = ENOMEM;
 		goto cleanup;
 	}

kernel-src/sys/syscalls/futex.c

@@ -1,6 +1,6 @@
 #include <kernel/syscalls.h>
 #include <kernel/slab.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <time.h>
 #include <hashtable.h>
 #include <kernel/poll.h>
@@ -66,7 +66,7 @@ syscallret_t syscall_futex(context_t *, uint32_t *futexp, int op, uint32_t value
 	if (unlikely(ret.errno))
 		goto cleanup;
 
-	uint32_t *physical = vmm_getphysical(futexp, 0);
+	uint32_t *physical = mm_get_physical_address(futexp, 0);
 	futex_t *futex = getfutex(physical);
 
 	switch (op) {

kernel-src/sys/syscalls/getdent.c

@@ -1,6 +1,6 @@
 #include <kernel/syscalls.h>
 #include <kernel/file.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <errno.h>
 #include <kernel/alloc.h>
 

kernel-src/sys/syscalls/mmap.c

@@ -1,7 +1,7 @@
 #include <kernel/syscalls.h>
 #include <kernel/abi.h>
 #include <errno.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <logging.h>
 
 #define PROT_READ  0x01
@@ -59,21 +59,21 @@ syscallret_t syscall_mmap(context_t *context, void *hint, size_t len, int prot,
 		mmuflags |= ARCH_MMU_FLAGS_NOEXEC;
 
 	bool isfile = (flags & MAP_ANONYMOUS) == 0;
-	int vmmflags = 0;
+	int mm_flags = 0;
 
 	if (flags & MAP_FIXED)
-		vmmflags |= VMM_FLAGS_REPLACE;
+		mm_flags |= MM_RANGE_FLAGS_REPLACE;
 
 	if (flags & MAP_FIXED_NOREPLACE)
-		vmmflags |= VMM_FLAGS_EXACT;
+		mm_flags |= MM_RANGE_FLAGS_EXACT;
 
 	if ((flags & MAP_ANONYMOUS) == 0)
-		vmmflags |= VMM_FLAGS_FILE;
+		mm_flags |= MM_RANGE_FLAGS_FILE;
 
 	if (flags & MAP_SHARED)
-		vmmflags |= VMM_FLAGS_SHARED;
+		mm_flags |= MM_RANGE_FLAGS_SHARED;
 
-	vmmfiledesc_t vfd;
+	mm_map_file_desc_t vfd;
 	file_t *file = NULL;
 	if (isfile) {
 		// make sure offset is page aligned
@@ -99,7 +99,7 @@ syscallret_t syscall_mmap(context_t *context, void *hint, size_t len, int prot,
 		}
 
 		// if the vnode is not cacheable, we need to make sure we can map it
-		// TODO move this check to vmm_map once the return value of mmap is fixed to return an errno
+		// TODO move this check to mm_map once the return value of mmap is fixed to return an errno
 		if (vfs_iscacheable(file->vnode) == false) {
 			ret.errno = VOP_MMAP(file->vnode, VOP_MMAP_ADDRESS_MMAP_SUPPORTED, 0, 0, NULL);
 			if (ret.errno)
@@ -113,7 +113,7 @@ syscallret_t syscall_mmap(context_t *context, void *hint, size_t len, int prot,
 	if (hint < USERSPACE_START)
 		hint = USERSPACE_MMAP_START;
 
-	ret.ret = (uint64_t)vmm_map(hint, len, vmmflags, mmuflags, &vfd);
+	ret.ret = (uint64_t)mm_map(hint, len, mm_flags, mmuflags, &vfd);
 	if (ret.ret == 0)
 		ret.errno = ENOMEM;
 

kernel-src/sys/syscalls/mount.c

@@ -1,5 +1,5 @@
 #include <kernel/syscalls.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/alloc.h>
 #include <kernel/vfs.h>
 #include <logging.h>

kernel-src/sys/syscalls/mprotect.c

@@ -1,7 +1,7 @@
 #include <kernel/syscalls.h>
 #include <kernel/abi.h>
 #include <errno.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <logging.h>
 
 #define PROT_READ  0x01
@@ -37,7 +37,7 @@ syscallret_t syscall_mprotect(context_t *context, void *address, size_t len, int
 	if ((prot & PROT_EXEC) == 0)
 		mmuflags |= ARCH_MMU_FLAGS_NOEXEC;
 
-	ret.errno = vmm_changemmuflags(address, len, mmuflags, VMM_FLAGS_CREDCHECK);
+	ret.errno = mm_change_mmu_flags(address, len, mmuflags, MM_RANGE_FLAGS_CREDCHECK);
 	ret.ret = ret.errno ? -1 : 0;
 
 	return ret;

kernel-src/sys/syscalls/munmap.c

@@ -1,5 +1,5 @@
 #include <kernel/syscalls.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <errno.h>
 
 syscallret_t syscall_munmap(context_t *ctx, void *addr, size_t length) {
@@ -18,7 +18,7 @@ syscallret_t syscall_munmap(context_t *ctx, void *addr, size_t length) {
 		return ret;
 	}
 
-	vmm_unmap(addr, length, 0);
+	mm_unmap(addr, length, 0);
 
 	ret.ret = 0;
 	ret.errno = 0;

kernel-src/sys/syscalls/newthread.c

@@ -26,7 +26,7 @@ syscallret_t syscall_newthread(context_t *, void *entry, void *stack) {
 		return ret;
 	}
 
-	thread->vmmctx = current_thread()->vmmctx;
+	thread->mmctx = current_thread()->mmctx;
 
 	bool intstatus = interrupt_set(false);
 	spinlock_acquire(&proc->threadlistlock);

kernel-src/sys/syscalls/poll.c

@@ -1,7 +1,7 @@
 #include <kernel/syscalls.h>
 #include <kernel/file.h>
 #include <kernel/poll.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <logging.h>
 #include <kernel/alloc.h>
 

kernel-src/sys/syscalls/sleep.c

@@ -1,6 +1,6 @@
 #include <kernel/syscalls.h>
 #include <time.h>
-#include <kernel/vmm.h>
+#include <kernel/mm.h>
 #include <kernel/timer.h>
 #include <arch/cpu.h>
 

kernel-src/sys/thread.c

@@ -23,7 +23,7 @@ thread_t *sched_newthread(void *ip, size_t kstacksize, int nice, proc_t *proc, v
 		return NULL;
 	}
 
-	thread->kernelstack = vmm_map(NULL, kstacksize, VMM_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_NOEXEC, NULL);
+	thread->kernelstack = mm_map(NULL, kstacksize, MM_RANGE_FLAGS_ALLOCATE, ARCH_MMU_FLAGS_WRITE | ARCH_MMU_FLAGS_READ | ARCH_MMU_FLAGS_NOEXEC, NULL);
 	if (thread->kernelstack == NULL) {
 		arch_extracontext_free(&thread->extracontext);
 		slab_free(thread_cache, thread);
@@ -32,8 +32,8 @@ thread_t *sched_newthread(void *ip, size_t kstacksize, int nice, proc_t *proc, v
 
 	thread->kernelstacktop = (void *)((uintptr_t)thread->kernelstack + kstacksize);
 
-	// non kernel thread vmm contexts are handled by the caller
-	thread->vmmctx = proc ? NULL : &vmm_kernelctx;
+	// non kernel thread mm contexts are handled by the caller
+	thread->mmctx = proc ? NULL : &mm_kernel_ctx;
 	thread->proc = proc;
 	thread->kernelstacksize = kstacksize;
 	thread->nice = nice;
@@ -57,7 +57,7 @@ thread_t *sched_newthread(void *ip, size_t kstacksize, int nice, proc_t *proc, v
 }
 
 void sched_destroythread(thread_t *thread) {
-	vmm_unmap(thread->kernelstack, thread->kernelstacksize, 0);
+	mm_unmap(thread->kernelstack, thread->kernelstacksize, 0);
 	arch_extracontext_free(&thread->extracontext);
 	slab_free(thread_cache, thread);
 }
@@ -84,18 +84,18 @@ __attribute__((noreturn)) void sched_threadexit() {
 	thread_t *thread = current_thread();
 	proc_t *proc = thread->proc;
 
-	vmmcontext_t *oldctx = thread->vmmctx;
-	vmm_switchcontext(&vmm_kernelctx);
+	mm_context_t *oldctx = thread->mmctx;
+	mm_switch_context(&mm_kernel_ctx);
 
 	if (proc) {
 		__atomic_fetch_sub(&proc->runningthreadcount, 1, __ATOMIC_SEQ_CST);
-		__assert(oldctx != &vmm_kernelctx);
+		__assert(oldctx != &mm_kernel_ctx);
 		if (proc->runningthreadcount == 0) {
 			if (thread->shouldexit)
 				proc->status = -1;
 
 			proc_exit();
-			vmm_destroycontext(oldctx);
+			mm_destroy_context(oldctx);
 			PROC_RELEASE(proc);
 		}
 	}