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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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1
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_page_table.hpp
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@ -172,6 +172,7 @@ 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);
Result Finalize();
private:
Result Map(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, PageLinkedList *page_list, bool reuse_ll);

1
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_page_table_impl.hpp
View file

@ -103,6 +103,7 @@ namespace ams::kern::arch::arm64 {
constexpr KPageTableImpl() : table(), is_kernel(), num_entries() { /* ... */ }
NOINLINE void InitializeForKernel(void *tb, KVirtualAddress start, KVirtualAddress end);
NOINLINE void InitializeForProcess(void *tb, KVirtualAddress start, KVirtualAddress end);
L1PageTableEntry *Finalize();
bool BeginTraversal(TraversalEntry *out_entry, TraversalContext *out_context, KProcessAddress address) const;

13
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_process_page_table.hpp
View file

@ -24,6 +24,19 @@ namespace ams::kern::arch::arm64 {
KPageTable page_table;
public:
constexpr KProcessPageTable() : page_table() { /* ... */ }
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);
}
void Finalize() { this->page_table.Finalize(); }
Result MapPageGroup(KProcessAddress addr, const KPageGroup &pg, KMemoryState state, KMemoryPermission perm) {
return this->page_table.MapPageGroup(addr, pg, state, perm);
}
bool CanContain(KProcessAddress addr, size_t size) const { return this->page_table.CanContain(addr, size); }
bool CanContain(KProcessAddress addr, size_t size, KMemoryState state) const { return this->page_table.CanContain(addr, size, state); }
};
}

4
libraries/libmesosphere/include/mesosphere/kern_k_capabilities.hpp
View file

@ -34,7 +34,9 @@ namespace ams::kern {
util::BitPack32 intended_kernel_version;
u32 program_type{};
public:
constexpr KCapabilities() : svc_access_flags(), debug_capabilities(0), intended_kernel_version(0) { /* ... */ }
constexpr KCapabilities() : debug_capabilities(0), intended_kernel_version(0) { /* ... */ }
Result Initialize(const u32 *caps, s32 num_caps, KProcessPageTable *page_table);
constexpr u64 GetCoreMask() const { return this->core_mask; }
constexpr u64 GetPriorityMask() const { return this->priority_mask; }

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) {

4
libraries/libmesosphere/include/mesosphere/kern_k_process.hpp
View file

@ -115,10 +115,14 @@ namespace ams::kern {
KMemoryBlockSlabManager memory_block_slab_manager{};
KBlockInfoManager block_info_manager{};
KPageTableManager page_table_manager{};
private:
Result Initialize(const ams::svc::CreateProcessParameter &params);
public:
constexpr KProcess() { /* ... */ }
virtual ~KProcess() { /* ... */ }
Result Initialize(const ams::svc::CreateProcessParameter &params, const KPageGroup &pg, const u32 *caps, s32 num_caps, KResourceLimit *res_limit, KMemoryManager::Pool pool);
constexpr u64 GetProcessId() const { return this->process_id; }
constexpr u64 GetCoreMask() const { return this->capabilities.GetCoreMask(); }

1
libraries/libmesosphere/include/mesosphere/kern_svc.hpp
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@ -17,4 +17,3 @@
#include <mesosphere/svc/kern_svc_results.hpp>
#include <mesosphere/svc/kern_svc_k_user_pointer.hpp>
#include <mesosphere/svc/kern_svc_prototypes.hpp>
#include <mesosphere/svc/kern_svc_tables.hpp>

2
libraries/libmesosphere/include/mesosphere/svc/kern_svc_prototypes.hpp
View file

@ -20,6 +20,8 @@
namespace ams::kern::svc {
static constexpr size_t NumSupervisorCalls = 0x80;
#define AMS_KERN_SVC_DECLARE_PROTOTYPE_64(ID, RETURN_TYPE, NAME, ...) \
NOINLINE RETURN_TYPE NAME##64(__VA_ARGS__);
#define AMS_KERN_SVC_DECLARE_PROTOTYPE_64_FROM_32(ID, RETURN_TYPE, NAME, ...) \

1
libraries/libmesosphere/include/mesosphere/svc/kern_svc_tables.hpp
View file

@ -19,7 +19,6 @@
namespace ams::kern::svc {
static constexpr size_t NumSupervisorCalls = 0x80;
using SvcTableEntry = void (*)();
/* TODO: 32-bit ABI */