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Code Issues Releases Activity

kern: increase stack region size when thread resource limit is increased

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Michael Scire 2022-10-11 22:52:09 -07:00 committed by SciresM
parent 7f2cbba543
commit ea82889e6c
4 changed files with 14 additions and 14 deletions
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2
libraries/libmesosphere/include/mesosphere/kern_k_memory_layout.hpp
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@ -187,7 +187,7 @@ namespace ams::kern {
static void InitializeLinearMemoryRegionTrees(); static void InitializeLinearMemoryRegionTrees();
static size_t GetResourceRegionSizeForInit(); static size_t GetResourceRegionSizeForInit(bool use_extra_resource);
static MESOSPHERE_NOINLINE_IF_DEBUG auto GetKernelRegionExtents() { return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Kernel); } static MESOSPHERE_NOINLINE_IF_DEBUG auto GetKernelRegionExtents() { return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Kernel); }
static MESOSPHERE_NOINLINE_IF_DEBUG auto GetKernelCodeRegionExtents() { return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelCode); } static MESOSPHERE_NOINLINE_IF_DEBUG auto GetKernelCodeRegionExtents() { return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelCode); }

7
libraries/libmesosphere/source/kern_k_memory_layout.cpp
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@ -126,11 +126,8 @@ namespace ams::kern {
} }
} }
size_t KMemoryLayout::GetResourceRegionSizeForInit() { size_t KMemoryLayout::GetResourceRegionSizeForInit(bool use_extra_resource) {
/* Calculate resource region size based on whether we allow extra threads. */ return KernelResourceSize + (use_extra_resource ? KernelSlabHeapAdditionalSize : 0);
const bool use_extra_resources = KSystemControl::Init::ShouldIncreaseThreadResourceLimit();
return KernelResourceSize + (use_extra_resources ? KernelSlabHeapAdditionalSize : 0);
} }
} }

17
mesosphere/kernel/source/arch/arm64/init/kern_init_core.cpp
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@ -34,12 +34,12 @@ namespace ams::kern::init {
namespace { namespace {
/* Global Allocator. */ /* Global Allocator. */
KInitialPageAllocator g_initial_page_allocator; constinit KInitialPageAllocator g_initial_page_allocator;
/* Global initial arguments array. */ /* Global initial arguments array. */
KPhysicalAddress g_init_arguments_phys_addr[cpu::NumCores]; constinit KPhysicalAddress g_init_arguments_phys_addr[cpu::NumCores];
KInitArguments g_init_arguments[cpu::NumCores]; constinit KInitArguments g_init_arguments[cpu::NumCores];
/* Page table attributes. */ /* Page table attributes. */
constexpr PageTableEntry KernelRoDataAttribute(PageTableEntry::Permission_KernelR, PageTableEntry::PageAttribute_NormalMemory, PageTableEntry::Shareable_InnerShareable, PageTableEntry::MappingFlag_Mapped); constexpr PageTableEntry KernelRoDataAttribute(PageTableEntry::Permission_KernelR, PageTableEntry::PageAttribute_NormalMemory, PageTableEntry::Shareable_InnerShareable, PageTableEntry::MappingFlag_Mapped);
@ -263,14 +263,17 @@ namespace ams::kern::init {
const KVirtualAddress misc_region_start = GetRandomAlignedRegion(misc_region_size, MiscRegionAlign, init_pt, KMemoryLayout::GetVirtualMemoryRegionTree(), KMemoryRegionType_Kernel); const KVirtualAddress misc_region_start = GetRandomAlignedRegion(misc_region_size, MiscRegionAlign, init_pt, KMemoryLayout::GetVirtualMemoryRegionTree(), KMemoryRegionType_Kernel);
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(GetInteger(misc_region_start), misc_region_size, KMemoryRegionType_KernelMisc)); MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(GetInteger(misc_region_start), misc_region_size, KMemoryRegionType_KernelMisc));
/* Determine if we'll use extra thread resources. */
const bool use_extra_resources = KSystemControl::Init::ShouldIncreaseThreadResourceLimit();
/* Setup the stack region. */ /* Setup the stack region. */
constexpr size_t StackRegionSize = 14_MB; const size_t stack_region_size = use_extra_resources ? 24_MB : 14_MB;
constexpr size_t StackRegionAlign = KernelAslrAlignment; constexpr size_t StackRegionAlign = KernelAslrAlignment;
const KVirtualAddress stack_region_start = GetRandomAlignedRegion(StackRegionSize, StackRegionAlign, init_pt, KMemoryLayout::GetVirtualMemoryRegionTree(), KMemoryRegionType_Kernel); const KVirtualAddress stack_region_start = GetRandomAlignedRegion(stack_region_size, StackRegionAlign, init_pt, KMemoryLayout::GetVirtualMemoryRegionTree(), KMemoryRegionType_Kernel);
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(GetInteger(stack_region_start), StackRegionSize, KMemoryRegionType_KernelStack)); MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(GetInteger(stack_region_start), stack_region_size, KMemoryRegionType_KernelStack));
/* Determine the size of the resource region. */ /* Determine the size of the resource region. */
const size_t resource_region_size = KMemoryLayout::GetResourceRegionSizeForInit(); const size_t resource_region_size = KMemoryLayout::GetResourceRegionSizeForInit(use_extra_resources);
/* Determine the size of the slab region. */ /* Determine the size of the slab region. */
const size_t slab_region_size = util::AlignUp(CalculateTotalSlabHeapSize(), PageSize); const size_t slab_region_size = util::AlignUp(CalculateTotalSlabHeapSize(), PageSize);

2
mesosphere/kernel_ldr/source/kern_init_loader.cpp
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@ -161,7 +161,7 @@ namespace ams::kern::init::loader {
const uintptr_t init_array_end_offset = layout->init_array_end_offset; const uintptr_t init_array_end_offset = layout->init_array_end_offset;
/* Determine the size of the resource region. */ /* Determine the size of the resource region. */
const size_t resource_region_size = KMemoryLayout::GetResourceRegionSizeForInit(); const size_t resource_region_size = KMemoryLayout::GetResourceRegionSizeForInit(KSystemControl::Init::ShouldIncreaseThreadResourceLimit());
const uintptr_t resource_end_address = base_address + resource_offset + resource_region_size; const uintptr_t resource_end_address = base_address + resource_offset + resource_region_size;
/* Setup the INI1 header in memory for the kernel. */ /* Setup the INI1 header in memory for the kernel. */