mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2025-05-13 06:34:23 -04:00
Code Issues Projects Releases Packages Wiki Activity

kern: support dynamic resource expansion for system heaps/events/sessions.

Browse source
This commit is contained in:
Michael Scire 2021-09-17 22:01:58 -07:00 • committed by SciresM
parent 2b91956051
commit 2c4bd44d7e
37 changed files with 856 additions and 328 deletions
Download patch file Download diff file Expand all files Collapse all files

33
libraries/libmesosphere/source/kern_kernel.cpp
View file

@ -66,15 +66,11 @@ namespace ams::kern {
void Kernel::InitializeResourceManagers(KVirtualAddress address, size_t size) {
/* Ensure that the buffer is suitable for our use. */
//const size_t app_size = ApplicationMemoryBlockSlabHeapSize * sizeof(KMemoryBlock);
//const size_t sys_size = SystemMemoryBlockSlabHeapSize * sizeof(KMemoryBlock);
//const size_t info_size = BlockInfoSlabHeapSize * sizeof(KBlockInfo);
//const size_t fixed_size = util::AlignUp(app_size + sys_size + info_size, PageSize);
MESOSPHERE_ABORT_UNLESS(util::IsAligned(GetInteger(address), PageSize));
MESOSPHERE_ABORT_UNLESS(util::IsAligned(size, PageSize));
/* Ensure that we have space for our reference counts. */
const size_t rc_size = util::AlignUp(KPageTableManager::CalculateReferenceCountSize(size), PageSize);
const size_t rc_size = util::AlignUp(KPageTableSlabHeap::CalculateReferenceCountSize(size), PageSize);
MESOSPHERE_ABORT_UNLESS(rc_size < size);
size -= rc_size;
@ -82,13 +78,28 @@ namespace ams::kern {
g_resource_manager_page_manager.Initialize(address, size);
/* Initialize the fixed-size slabheaps. */
s_app_memory_block_manager.Initialize(std::addressof(g_resource_manager_page_manager), ApplicationMemoryBlockSlabHeapSize);
s_sys_memory_block_manager.Initialize(std::addressof(g_resource_manager_page_manager), SystemMemoryBlockSlabHeapSize);
s_block_info_manager.Initialize(std::addressof(g_resource_manager_page_manager), BlockInfoSlabHeapSize);
s_app_memory_block_heap.Initialize(std::addressof(g_resource_manager_page_manager), ApplicationMemoryBlockSlabHeapSize);
s_sys_memory_block_heap.Initialize(std::addressof(g_resource_manager_page_manager), SystemMemoryBlockSlabHeapSize);
s_block_info_heap.Initialize(std::addressof(g_resource_manager_page_manager), BlockInfoSlabHeapSize);
/* Reserve all remaining pages for the page table manager. */
const size_t num_pt_pages = g_resource_manager_page_manager.GetCount() - g_resource_manager_page_manager.GetUsed();
s_page_table_manager.Initialize(std::addressof(g_resource_manager_page_manager), num_pt_pages, GetPointer<KPageTableManager::RefCount>(address + size));
/* Reserve all but a fixed number of remaining pages for the page table heap. */
const size_t num_pt_pages = g_resource_manager_page_manager.GetCount() - g_resource_manager_page_manager.GetUsed() - ReservedDynamicPageCount;
s_page_table_heap.Initialize(std::addressof(g_resource_manager_page_manager), num_pt_pages, GetPointer<KPageTableManager::RefCount>(address + size));
/* Setup the slab managers. */
KDynamicPageManager * const app_dynamic_page_manager = nullptr;
KDynamicPageManager * const sys_dynamic_page_manager = KTargetSystem::IsDynamicResourceLimitsEnabled() ? std::addressof(g_resource_manager_page_manager) : nullptr;
s_app_memory_block_manager.Initialize(app_dynamic_page_manager, std::addressof(s_app_memory_block_heap));
s_sys_memory_block_manager.Initialize(sys_dynamic_page_manager, std::addressof(s_sys_memory_block_heap));
s_app_block_info_manager.Initialize(app_dynamic_page_manager, std::addressof(s_block_info_heap));
s_sys_block_info_manager.Initialize(sys_dynamic_page_manager, std::addressof(s_block_info_heap));
s_app_page_table_manager.Initialize(app_dynamic_page_manager, std::addressof(s_page_table_heap));
s_sys_page_table_manager.Initialize(sys_dynamic_page_manager, std::addressof(s_page_table_heap));
/* Check that we have the correct number of dynamic pages available. */
MESOSPHERE_ABORT_UNLESS(g_resource_manager_page_manager.GetCount() - g_resource_manager_page_manager.GetUsed() == ReservedDynamicPageCount);
}
void Kernel::PrintLayout() {