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Spawn Processes using memory primitives rather than and elf loader.

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This allows us to remove the temporary syscall for that style of process
spawn.
This commit is contained in:
Drew Galbraith 2023-06-07 00:04:53 -07:00
parent b06c76e477
commit 23895b5c6c
26 changed files with 403 additions and 94 deletions
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7
zion/object/address_space.h
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@ -24,7 +24,7 @@
// 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 AddressSpace {
class AddressSpace : public KernelObject {
public:
enum MemoryType {
UNSPECIFIED,
@ -40,7 +40,7 @@ class AddressSpace {
KERNEL_STACK,
};
static AddressSpace ForRoot();
static RefPtr<AddressSpace> ForRoot();
AddressSpace();
AddressSpace(const AddressSpace&) = delete;
@ -56,6 +56,8 @@ class AddressSpace {
// Note this is unsafe for now as it may clobber other mappings.
void MapInMemoryObject(uint64_t vaddr, const RefPtr<MemoryObject>& mem_obj);
uint64_t MapInMemoryObject(const RefPtr<MemoryObject>& mem_obj);
// Kernel Mappings.
uint64_t* AllocateKernelStack();
@ -63,6 +65,7 @@ class AddressSpace {
bool HandlePageFault(uint64_t vaddr);
private:
friend class MakeRefCountedFriend<AddressSpace>;
AddressSpace(uint64_t cr3) : cr3_(cr3) {}
uint64_t cr3_ = 0;