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kern: take alignment argument in KMemoryManager::AllocateAndOpen

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This commit is contained in:
Michael Scire 2024-03-28 02:17:38 -07:00 committed by SciresM
parent 8aa62a54d8
commit 217dd1260a
5 changed files with 20 additions and 14 deletions
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4
libraries/libmesosphere/include/mesosphere/kern_k_memory_manager.hpp
View file

@ -185,7 +185,7 @@ namespace ams::kern {
}
}
Result AllocatePageGroupImpl(KPageGroup *out, size_t num_pages, Pool pool, Direction dir, bool unoptimized, bool random);
Result AllocatePageGroupImpl(KPageGroup *out, size_t num_pages, Pool pool, Direction dir, bool unoptimized, bool random, s32 min_heap_index);
public:
KMemoryManager()
: m_pool_locks(), m_pool_managers_head(), m_pool_managers_tail(), m_managers(), m_num_managers(), m_optimized_process_ids(), m_has_optimized_process()
@ -199,7 +199,7 @@ namespace ams::kern {
NOINLINE void FinalizeOptimizedMemory(u64 process_id, Pool pool);
NOINLINE KPhysicalAddress AllocateAndOpenContinuous(size_t num_pages, size_t align_pages, u32 option);
NOINLINE Result AllocateAndOpen(KPageGroup *out, size_t num_pages, u32 option);
NOINLINE Result AllocateAndOpen(KPageGroup *out, size_t num_pages, size_t align_pages, u32 option);
NOINLINE Result AllocateForProcess(KPageGroup *out, size_t num_pages, u32 option, u64 process_id, u8 fill_pattern);
Pool GetPool(KPhysicalAddress address) const {

4
libraries/libmesosphere/source/kern_initial_process.cpp
View file

@ -136,7 +136,7 @@ namespace ams::kern {
{
/* Allocate the previously unreserved pages. */
KPageGroup unreserve_pg(Kernel::GetSystemSystemResource().GetBlockInfoManagerPointer());
MESOSPHERE_R_ABORT_UNLESS(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(unreserve_pg), unreserved_size / PageSize, KMemoryManager::EncodeOption(dst_pool, KMemoryManager::Direction_FromFront)));
MESOSPHERE_R_ABORT_UNLESS(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(unreserve_pg), unreserved_size / PageSize, 1, KMemoryManager::EncodeOption(dst_pool, KMemoryManager::Direction_FromFront)));
/* Add the previously reserved pages. */
if (src_pool == dst_pool && binary_pages != 0) {
@ -173,7 +173,7 @@ namespace ams::kern {
/* If the pool is the same, we need to use the workaround page group. */
if (src_pool == dst_pool) {
/* Allocate a new, usable group for the process. */
MESOSPHERE_R_ABORT_UNLESS(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(workaround_pg), static_cast<size_t>(params.code_num_pages), KMemoryManager::EncodeOption(dst_pool, KMemoryManager::Direction_FromFront)));
MESOSPHERE_R_ABORT_UNLESS(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(workaround_pg), static_cast<size_t>(params.code_num_pages), 1, KMemoryManager::EncodeOption(dst_pool, KMemoryManager::Direction_FromFront)));
/* Copy data from the working page group to the usable one. */
auto work_it = pg.begin();

16
libraries/libmesosphere/source/kern_k_memory_manager.cpp
View file

@ -225,7 +225,7 @@ namespace ams::kern {
return allocated_block;
}
Result KMemoryManager::AllocatePageGroupImpl(KPageGroup *out, size_t num_pages, Pool pool, Direction dir, bool unoptimized, bool random) {
Result KMemoryManager::AllocatePageGroupImpl(KPageGroup *out, size_t num_pages, Pool pool, Direction dir, bool unoptimized, bool random, s32 min_heap_index) {
/* Choose a heap based on our page size request. */
const s32 heap_index = KPageHeap::GetBlockIndex(num_pages);
R_UNLESS(0 <= heap_index, svc::ResultOutOfMemory());
@ -241,7 +241,7 @@ namespace ams::kern {
};
/* Keep allocating until we've allocated all our pages. */
for (s32 index = heap_index; index >= 0 && num_pages > 0; index--) {
for (s32 index = heap_index; index >= min_heap_index && num_pages > 0; index--) {
const size_t pages_per_alloc = KPageHeap::GetBlockNumPages(index);
for (Impl *cur_manager = this->GetFirstManager(pool, dir); cur_manager != nullptr; cur_manager = this->GetNextManager(cur_manager, dir)) {
while (num_pages >= pages_per_alloc) {
@ -274,7 +274,7 @@ namespace ams::kern {
R_SUCCEED();
}
Result KMemoryManager::AllocateAndOpen(KPageGroup *out, size_t num_pages, u32 option) {
Result KMemoryManager::AllocateAndOpen(KPageGroup *out, size_t num_pages, size_t align_pages, u32 option) {
MESOSPHERE_ASSERT(out != nullptr);
MESOSPHERE_ASSERT(out->GetNumPages() == 0);
@ -285,8 +285,11 @@ namespace ams::kern {
const auto [pool, dir] = DecodeOption(option);
KScopedLightLock lk(m_pool_locks[pool]);
/* Choose a heap based on our alignment size request. */
const s32 heap_index = KPageHeap::GetAlignedBlockIndex(align_pages, align_pages);
/* Allocate the page group. */
R_TRY(this->AllocatePageGroupImpl(out, num_pages, pool, dir, m_has_optimized_process[pool], true));
R_TRY(this->AllocatePageGroupImpl(out, num_pages, pool, dir, m_has_optimized_process[pool], true, heap_index));
/* Open the first reference to the pages. */
for (const auto &block : *out) {
@ -326,8 +329,11 @@ namespace ams::kern {
const bool has_optimized = m_has_optimized_process[pool];
const bool is_optimized = m_optimized_process_ids[pool] == process_id;
/* Always use the minimum alignment size. */
const s32 heap_index = 0;
/* Allocate the page group. */
R_TRY(this->AllocatePageGroupImpl(out, num_pages, pool, dir, has_optimized && !is_optimized, false));
R_TRY(this->AllocatePageGroupImpl(out, num_pages, pool, dir, has_optimized && !is_optimized, false, heap_index));
/* Set whether we should optimize. */
optimized = has_optimized && is_optimized;

8
libraries/libmesosphere/source/kern_k_page_table_base.cpp
View file

@ -1266,7 +1266,7 @@ namespace ams::kern {
/* Allocate pages for the insecure memory. */
KPageGroup pg(m_block_info_manager);
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(pg), size / PageSize, KMemoryManager::EncodeOption(insecure_pool, KMemoryManager::Direction_FromFront)));
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(pg), size / PageSize, 1, KMemoryManager::EncodeOption(insecure_pool, KMemoryManager::Direction_FromFront)));
/* Close the opened pages when we're done with them. */
/* If the mapping succeeds, each page will gain an extra reference, otherwise they will be freed automatically. */
@ -1426,7 +1426,7 @@ namespace ams::kern {
KPageGroup pg(m_block_info_manager);
/* Allocate the pages. */
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(pg), num_pages, m_allocate_option));
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(pg), num_pages, 1, m_allocate_option));
/* Ensure that the page group is closed when we're done working with it. */
ON_SCOPE_EXIT { pg.Close(); };
@ -1931,7 +1931,7 @@ namespace ams::kern {
/* Allocate pages for the heap extension. */
KPageGroup pg(m_block_info_manager);
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(pg), allocation_size / PageSize, m_allocate_option));
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(pg), allocation_size / PageSize, 1, m_allocate_option));
/* Close the opened pages when we're done with them. */
/* If the mapping succeeds, each page will gain an extra reference, otherwise they will be freed automatically. */
@ -4844,7 +4844,7 @@ namespace ams::kern {
/* Allocate the new memory. */
const size_t num_pages = size / PageSize;
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(pg), num_pages, KMemoryManager::EncodeOption(KMemoryManager::Pool_Unsafe, KMemoryManager::Direction_FromFront)));
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(pg), num_pages, 1, KMemoryManager::EncodeOption(KMemoryManager::Pool_Unsafe, KMemoryManager::Direction_FromFront)));
/* Close the page group when we're done with it. */
ON_SCOPE_EXIT { pg.Close(); };

2
libraries/libmesosphere/source/kern_k_shared_memory.cpp
View file

@ -37,7 +37,7 @@ namespace ams::kern {
R_UNLESS(memory_reservation.Succeeded(), svc::ResultLimitReached());
/* Allocate the memory. */
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(m_page_group), num_pages, owner->GetAllocateOption()));
R_TRY(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(m_page_group), num_pages, 1, owner->GetAllocateOption()));
/* Commit our reservation. */
memory_reservation.Commit();