Move VirtualMemory to AddressSpace Object

This commit is contained in:
Drew Galbraith 2023-06-06 20:43:15 -07:00
parent b5ad454ad1
commit 1fda0f3fae
4 changed files with 17 additions and 17 deletions

View File

@ -14,9 +14,9 @@ add_executable(zion
memory/paging_util.cpp
memory/physical_memory.cpp
memory/user_stack_manager.cpp
memory/virtual_memory.cpp
object/process.cpp
object/thread.cpp
object/address_space.cpp
scheduler/context_switch.s
scheduler/jump_user_space.s
scheduler/process_manager.cpp

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@ -1,4 +1,4 @@
#include "memory/virtual_memory.h"
#include "object/address_space.h"
#include "memory/kernel_stack_manager.h"
#include "memory/paging_util.h"
@ -6,22 +6,22 @@
extern KernelStackManager* gKernelStackManager;
VirtualMemory VirtualMemory::ForRoot() {
AddressSpace AddressSpace::ForRoot() {
uint64_t cr3 = 0;
asm volatile("mov %%cr3, %0;" : "=r"(cr3));
return {cr3};
}
VirtualMemory::VirtualMemory() {
AddressSpace::AddressSpace() {
cr3_ = phys_mem::AllocatePage();
InitializePml4(cr3_);
}
uint64_t VirtualMemory::AllocateUserStack() {
uint64_t AddressSpace::AllocateUserStack() {
return user_stacks_.NewUserStack();
}
uint64_t VirtualMemory::GetNextMemMapAddr(uint64_t size) {
uint64_t AddressSpace::GetNextMemMapAddr(uint64_t size) {
uint64_t addr = next_memmap_addr_;
next_memmap_addr_ += size;
if (next_memmap_addr_ >= 0x30'00000000) {
@ -30,6 +30,6 @@ uint64_t VirtualMemory::GetNextMemMapAddr(uint64_t size) {
return addr;
}
uint64_t* VirtualMemory::AllocateKernelStack() {
uint64_t* AddressSpace::AllocateKernelStack() {
return gKernelStackManager->AllocateKernelStack();
}

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@ -23,7 +23,7 @@
// 0xFFFFFFFF 40000000 - 0xFFFFFFFF 7FFFFFFF : KERNEL_HEAP (1 GiB)
// 0xFFFFFFFF 80000000 - 0xFFFFFFFF 80FFFFFF : KERNEL_CODE (16 MiB)
// 0xFFFFFFFF 90000000 - 0xFFFFFFFF 9FFFFFFF : KERNEL_STACK (256 MiB)
class VirtualMemory {
class AddressSpace {
public:
enum MemoryType {
UNSPECIFIED,
@ -39,11 +39,11 @@ class VirtualMemory {
KERNEL_STACK,
};
static VirtualMemory ForRoot();
static AddressSpace ForRoot();
VirtualMemory();
VirtualMemory(const VirtualMemory&) = delete;
VirtualMemory(VirtualMemory&&) = delete;
AddressSpace();
AddressSpace(const AddressSpace&) = delete;
AddressSpace(AddressSpace&&) = delete;
uint64_t cr3() { return cr3_; }
@ -55,7 +55,7 @@ class VirtualMemory {
uint64_t* AllocateKernelStack();
private:
VirtualMemory(uint64_t cr3) : cr3_(cr3) {}
AddressSpace(uint64_t cr3) : cr3_(cr3) {}
uint64_t cr3_ = 0;
UserStackManager user_stacks_;

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@ -6,7 +6,7 @@
#include "lib/linked_list.h"
#include "lib/ref_ptr.h"
#include "lib/shared_ptr.h"
#include "memory/virtual_memory.h"
#include "object/address_space.h"
// Forward decl due to cyclic dependency.
class Thread;
@ -23,7 +23,7 @@ class Process : public KernelObject {
static RefPtr<Process> Create();
uint64_t id() const { return id_; }
VirtualMemory& vmm() { return vmm_; }
AddressSpace& vmm() { return vmm_; }
RefPtr<Thread> CreateThread();
RefPtr<Thread> GetThread(uint64_t tid);
@ -39,9 +39,9 @@ class Process : public KernelObject {
private:
friend class MakeRefCountedFriend<Process>;
Process();
Process(uint64_t id) : id_(id), vmm_(VirtualMemory::ForRoot()) {}
Process(uint64_t id) : id_(id), vmm_(AddressSpace::ForRoot()) {}
uint64_t id_;
VirtualMemory vmm_;
AddressSpace vmm_;
State state_;
uint64_t next_thread_id_ = 0;