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kern: implement DisableDeviceAddressSpaceMerge

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This commit is contained in:
Michael Scire 2020-12-01 06:53:22 -08:00 • committed by SciresM
parent f469dfbeb3
commit 6a85f7225d
11 changed files with 214 additions and 72 deletions
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2
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_page_table.hpp
View file

@ -176,7 +176,7 @@ namespace ams::kern::arch::arm64 {
}
NOINLINE Result InitializeForKernel(void *table, KVirtualAddress start, KVirtualAddress end);
NOINLINE Result InitializeForProcess(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KPageTableManager *pt_manager);
NOINLINE Result InitializeForProcess(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KPageTableManager *pt_manager);
Result Finalize();
private:
Result MapL1Blocks(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, bool disable_head_merge, PageLinkedList *page_list, bool reuse_ll);

12
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_process_page_table.hpp
View file

@ -30,8 +30,8 @@ namespace ams::kern::arch::arm64 {
this->page_table.Activate(id);
}
Result Initialize(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KPageTableManager *pt_manager) {
return this->page_table.InitializeForProcess(id, as_type, enable_aslr, from_back, pool, code_address, code_size, mem_block_slab_manager, block_info_manager, pt_manager);
Result Initialize(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KPageTableManager *pt_manager) {
return this->page_table.InitializeForProcess(id, as_type, enable_aslr, enable_das_merge, from_back, pool, code_address, code_size, mem_block_slab_manager, block_info_manager, pt_manager);
}
void Finalize() { this->page_table.Finalize(); }
@ -152,6 +152,14 @@ namespace ams::kern::arch::arm64 {
return this->page_table.UnlockForDeviceAddressSpace(address, size);
}
Result MakePageGroupForUnmapDeviceAddressSpace(KPageGroup *out, KProcessAddress address, size_t size) {
return this->page_table.MakePageGroupForUnmapDeviceAddressSpace(out, address, size);
}
Result UnlockForDeviceAddressSpacePartialMap(KProcessAddress address, size_t size, size_t mapped_size) {
return this->page_table.UnlockForDeviceAddressSpacePartialMap(address, size, mapped_size);
}
Result LockForIpcUserBuffer(KPhysicalAddress *out, KProcessAddress address, size_t size) {
return this->page_table.LockForIpcUserBuffer(out, address, size);
}

4
libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_device_page_table.hpp
View file

@ -71,6 +71,10 @@ namespace ams::kern::board::nintendo::nx {
Result Map(size_t *out_mapped_size, const KPageGroup &pg, KDeviceVirtualAddress device_address, ams::svc::MemoryPermission device_perm, bool refresh_mappings);
Result Unmap(const KPageGroup &pg, KDeviceVirtualAddress device_address);
void Unmap(KDeviceVirtualAddress device_address, size_t size) {
return this->UnmapImpl(device_address, size, false);
}
private:
Result MapDevicePage(size_t *out_mapped_size, s32 &num_pt, s32 max_pt, KPhysicalAddress phys_addr, u64 size, KDeviceVirtualAddress address, ams::svc::MemoryPermission device_perm);

3
libraries/libmesosphere/include/mesosphere/kern_k_memory_block_manager.hpp
View file

@ -76,6 +76,7 @@ namespace ams::kern {
class KMemoryBlockManager {
public:
using MemoryBlockTree = util::IntrusiveRedBlackTreeBaseTraits<KMemoryBlock>::TreeType<KMemoryBlock>;
using MemoryBlockLockFunction = void (KMemoryBlock::*)(KMemoryPermission new_perm, bool left, bool right);
using iterator = MemoryBlockTree::iterator;
using const_iterator = MemoryBlockTree::const_iterator;
private:
@ -97,7 +98,7 @@ namespace ams::kern {
KProcessAddress FindFreeArea(KProcessAddress region_start, size_t region_num_pages, size_t num_pages, size_t alignment, size_t offset, size_t guard_pages) const;
void Update(KMemoryBlockManagerUpdateAllocator *allocator, KProcessAddress address, size_t num_pages, KMemoryState state, KMemoryPermission perm, KMemoryAttribute attr, KMemoryBlockDisableMergeAttribute set_disable_attr, KMemoryBlockDisableMergeAttribute clear_disable_attr);
void UpdateLock(KMemoryBlockManagerUpdateAllocator *allocator, KProcessAddress address, size_t num_pages, void (KMemoryBlock::*lock_func)(KMemoryPermission new_perm, bool left, bool right), KMemoryPermission perm);
void UpdateLock(KMemoryBlockManagerUpdateAllocator *allocator, KProcessAddress address, size_t num_pages, MemoryBlockLockFunction lock_func, KMemoryPermission perm);
void UpdateIfMatch(KMemoryBlockManagerUpdateAllocator *allocator, KProcessAddress address, size_t num_pages, KMemoryState test_state, KMemoryPermission test_perm, KMemoryAttribute test_attr, KMemoryState state, KMemoryPermission perm, KMemoryAttribute attr);

11
libraries/libmesosphere/include/mesosphere/kern_k_page_table_base.hpp
View file

@ -158,6 +158,7 @@ namespace ams::kern {
u32 address_space_width;
bool is_kernel;
bool enable_aslr;
bool enable_device_address_space_merge;
KMemoryBlockSlabManager *memory_block_slab_manager;
KBlockInfoManager *block_info_manager;
const KMemoryRegion *cached_physical_linear_region;
@ -172,15 +173,15 @@ namespace ams::kern {
alias_region_start(), alias_region_end(), stack_region_start(), stack_region_end(), kernel_map_region_start(),
kernel_map_region_end(), alias_code_region_start(), alias_code_region_end(), code_region_start(), code_region_end(),
max_heap_size(), mapped_physical_memory_size(), mapped_unsafe_physical_memory(), general_lock(), map_physical_memory_lock(),
impl(), memory_block_manager(), allocate_option(), address_space_width(), is_kernel(), enable_aslr(), memory_block_slab_manager(),
block_info_manager(), cached_physical_linear_region(), cached_physical_heap_region(), cached_virtual_heap_region(),
impl(), memory_block_manager(), allocate_option(), address_space_width(), is_kernel(), enable_aslr(), enable_device_address_space_merge(),
memory_block_slab_manager(), block_info_manager(), cached_physical_linear_region(), cached_physical_heap_region(), cached_virtual_heap_region(),
heap_fill_value(), ipc_fill_value(), stack_fill_value()
{
/* ... */
}
NOINLINE Result InitializeForKernel(bool is_64_bit, void *table, KVirtualAddress start, KVirtualAddress end);
NOINLINE Result InitializeForProcess(ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool from_back, KMemoryManager::Pool pool, void *table, KProcessAddress start, KProcessAddress end, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager);
NOINLINE Result InitializeForProcess(ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_device_address_space_merge, bool from_back, KMemoryManager::Pool pool, void *table, KProcessAddress start, KProcessAddress end, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager);
void Finalize();
@ -353,6 +354,10 @@ namespace ams::kern {
Result LockForDeviceAddressSpace(KPageGroup *out, KProcessAddress address, size_t size, KMemoryPermission perm, bool is_aligned);
Result UnlockForDeviceAddressSpace(KProcessAddress address, size_t size);
Result MakePageGroupForUnmapDeviceAddressSpace(KPageGroup *out, KProcessAddress address, size_t size);
Result UnlockForDeviceAddressSpacePartialMap(KProcessAddress address, size_t size, size_t mapped_size);
Result LockForIpcUserBuffer(KPhysicalAddress *out, KProcessAddress address, size_t size);
Result UnlockForIpcUserBuffer(KProcessAddress address, size_t size);