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kern: implement process(pagetable) init

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This commit is contained in:
Michael Scire
2020-02-19 01:22:27 -08:00
parent fba8fb539d
commit 05a3e95834
16 changed files with 502 additions and 24 deletions
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26
libraries/libmesosphere/include/mesosphere/kern_k_page_table_base.hpp
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@@ -53,6 +53,7 @@ namespace ams::kern {
/* TODO: perm/attr operations */
};
static constexpr size_t RegionAlignment = KernelAslrAlignment;
struct PageLinkedList {
private:
@@ -87,6 +88,19 @@ namespace ams::kern {
static_assert(std::is_trivially_destructible<PageLinkedList>::value);
static constexpr u32 DefaultMemoryIgnoreAttr = KMemoryAttribute_DontCareMask | KMemoryAttribute_IpcLocked | KMemoryAttribute_DeviceShared;
static constexpr size_t GetAddressSpaceWidth(ams::svc::CreateProcessFlag as_type) {
switch (static_cast<ams::svc::CreateProcessFlag>(as_type & ams::svc::CreateProcessFlag_AddressSpaceMask)) {
case ams::svc::CreateProcessFlag_AddressSpace64Bit:
return 39;
case ams::svc::CreateProcessFlag_AddressSpace64BitDeprecated:
return 36;
case ams::svc::CreateProcessFlag_AddressSpace32Bit:
case ams::svc::CreateProcessFlag_AddressSpace32BitWithoutAlias:
return 32;
MESOSPHERE_UNREACHABLE_DEFAULT_CASE();
}
}
private:
class KScopedPageTableUpdater {
private:
@@ -122,7 +136,7 @@ namespace ams::kern {
KPageTableImpl impl;
KMemoryBlockManager memory_block_manager;
u32 allocate_option;
u32 address_space_size;
u32 address_space_width;
bool is_kernel;
bool enable_aslr;
KMemoryBlockSlabManager *memory_block_slab_manager;
@@ -139,7 +153,7 @@ 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(), max_physical_memory_size(), general_lock(), map_physical_memory_lock(), impl(), memory_block_manager(),
allocate_option(), address_space_size(), is_kernel(), enable_aslr(), memory_block_slab_manager(), block_info_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(),
heap_fill_value(), ipc_fill_value(), stack_fill_value()
{
@@ -147,23 +161,24 @@ namespace ams::kern {
}
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);
void Finalize();
constexpr bool IsKernel() const { return this->is_kernel; }
constexpr bool IsAslrEnabled() const { return this->enable_aslr; }
constexpr bool Contains(KProcessAddress addr) const {
constexpr bool CanContain(KProcessAddress addr) const {
return this->address_space_start <= addr && addr <= this->address_space_end - 1;
}
constexpr bool Contains(KProcessAddress addr, size_t size) const {
constexpr bool CanContain(KProcessAddress addr, size_t size) const {
return this->address_space_start <= addr && addr < addr + size && addr + size - 1 <= this->address_space_end - 1;
}
KProcessAddress GetRegionAddress(KMemoryState state) const;
size_t GetRegionSize(KMemoryState state) const;
bool Contains(KProcessAddress addr, size_t size, KMemoryState state) const;
bool CanContain(KProcessAddress addr, size_t size, KMemoryState state) const;
protected:
virtual Result Operate(PageLinkedList *page_list, KProcessAddress virt_addr, size_t num_pages, KPhysicalAddress phys_addr, bool is_pa_valid, const KPageProperties properties, OperationType operation, bool reuse_ll) = 0;
virtual Result Operate(PageLinkedList *page_list, KProcessAddress virt_addr, size_t num_pages, const KPageGroup *page_group, const KPageProperties properties, OperationType operation, bool reuse_ll) = 0;
@@ -231,6 +246,7 @@ namespace ams::kern {
Result UnmapPages(KProcessAddress address, size_t num_pages, KMemoryState state);
Result MapPageGroup(KProcessAddress *out_addr, const KPageGroup &pg, KProcessAddress region_start, size_t region_num_pages, KMemoryState state, KMemoryPermission perm);
Result MapPageGroup(KProcessAddress address, const KPageGroup &pg, KMemoryState state, KMemoryPermission perm);
Result UnmapPageGroup(KProcessAddress address, const KPageGroup &pg, KMemoryState state);
public:
static ALWAYS_INLINE KVirtualAddress GetLinearVirtualAddress(KPhysicalAddress addr) {