RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 06:37:35 +00:00
Code Issues Activity Actions

Kernel: Merge PurgeableVMObject into AnonymousVMObject

Browse source 
This implements memory commitments and lazy-allocation of committed
memory.
This commit is contained in:
Tom 2020-09-05 15:52:14 -06:00 • committed by Andreas Kling
parent b2a52f6208
commit 476f17b3f1
35 changed files with 937 additions and 564 deletions
Download patch file Download diff file Expand all files Collapse all files

13
Kernel/Process.h
View file

@ -45,6 +45,7 @@
#include <Kernel/ThreadTracer.h>
#include <Kernel/UnixTypes.h>
#include <Kernel/UnveilNode.h>
#include <Kernel/VM/AllocationStrategy.h>
#include <Kernel/VM/RangeAllocator.h>
#include <LibC/signal_numbers.h>
@ -112,7 +113,7 @@ public:
}
template<typename EntryFunction>
static NonnullRefPtr<Process> create_kernel_process(RefPtr<Thread>& first_thread, String&& name, EntryFunction entry, u32 affinity = THREAD_AFFINITY_DEFAULT)
static RefPtr<Process> create_kernel_process(RefPtr<Thread>& first_thread, String&& name, EntryFunction entry, u32 affinity = THREAD_AFFINITY_DEFAULT)
{
auto* entry_func = new EntryFunction(move(entry));
return create_kernel_process(
@ -124,7 +125,7 @@ public:
entry_func, affinity);
}
static NonnullRefPtr<Process> create_kernel_process(RefPtr<Thread>& first_thread, String&& name, void (*entry)(void*), void* entry_data = nullptr, u32 affinity = THREAD_AFFINITY_DEFAULT);
static RefPtr<Process> create_kernel_process(RefPtr<Thread>& first_thread, String&& name, void (*entry)(void*), void* entry_data = nullptr, u32 affinity = THREAD_AFFINITY_DEFAULT);
static RefPtr<Process> create_user_process(RefPtr<Thread>& first_thread, const String& path, uid_t, gid_t, ProcessID ppid, int& error, Vector<String>&& arguments = Vector<String>(), Vector<String>&& environment = Vector<String>(), TTY* = nullptr);
~Process();
@ -436,10 +437,10 @@ public:
return m_euid == 0;
}
Region* allocate_region_with_vmobject(VirtualAddress, size_t, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot, bool should_commit = true);
Region* allocate_region(VirtualAddress, size_t, const String& name, int prot = PROT_READ | PROT_WRITE, bool should_commit = true);
Region* allocate_region_with_vmobject(const Range&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot, bool should_commit = true);
Region* allocate_region(const Range&, const String& name, int prot = PROT_READ | PROT_WRITE, bool should_commit = true);
Region* allocate_region_with_vmobject(VirtualAddress, size_t, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot);
Region* allocate_region(VirtualAddress, size_t, const String& name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
Region* allocate_region_with_vmobject(const Range&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot);
Region* allocate_region(const Range&, const String& name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
bool deallocate_region(Region& region);
Region& allocate_split_region(const Region& source_region, const Range&, size_t offset_in_vmobject);