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kern: implement Svc(Un)MapInsecureMemory

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This commit is contained in:
Michael Scire 2022-10-11 23:44:22 -07:00 • committed by SciresM
parent 5a918f3bc9
commit e7a1e0fee2
8 changed files with 213 additions and 2 deletions
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8
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_process_page_table.hpp
View file

@ -110,6 +110,14 @@ namespace ams::kern::arch::arm64 {
R_RETURN(m_page_table.MapRegion(region_type, perm));
}
Result MapInsecureMemory(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.MapInsecureMemory(address, size));
}
Result UnmapInsecureMemory(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.UnmapInsecureMemory(address, size));
}
Result MapPageGroup(KProcessAddress addr, const KPageGroup &pg, KMemoryState state, KMemoryPermission perm) {
R_RETURN(m_page_table.MapPageGroup(addr, pg, state, perm));
}

5
libraries/libmesosphere/include/mesosphere/kern_k_memory_block.hpp
View file

@ -110,6 +110,10 @@ namespace ams::kern {
KMemoryState_CodeOut = ams::svc::MemoryState_CodeOut | KMemoryState_FlagMapped | KMemoryState_FlagReferenceCounted | KMemoryState_FlagLinearMapped,
KMemoryState_Coverage = ams::svc::MemoryState_Coverage | KMemoryState_FlagMapped,
KMemoryState_Insecure = ams::svc::MemoryState_Insecure | KMemoryState_FlagMapped | KMemoryState_FlagReferenceCounted | KMemoryState_FlagLinearMapped | KMemoryState_FlagCanChangeAttribute
| KMemoryState_FlagCanDeviceMap | KMemoryState_FlagCanAlignedDeviceMap
| KMemoryState_FlagCanUseNonSecureIpc | KMemoryState_FlagCanUseNonDeviceIpc,
};
#if 1
@ -136,6 +140,7 @@ namespace ams::kern {
static_assert(KMemoryState_GeneratedCode == 0x04402214);
static_assert(KMemoryState_CodeOut == 0x04402015);
static_assert(KMemoryState_Coverage == 0x00002016);
static_assert(KMemoryState_Insecure == 0x05583817);
#endif
enum KMemoryPermission : u8 {

7
libraries/libmesosphere/include/mesosphere/kern_k_page_table_base.hpp
View file

@ -165,6 +165,7 @@ namespace ams::kern {
size_t m_max_heap_size;
size_t m_mapped_physical_memory_size;
size_t m_mapped_unsafe_physical_memory;
size_t m_mapped_insecure_memory;
size_t m_mapped_ipc_server_memory;
mutable KLightLock m_general_lock;
mutable KLightLock m_map_physical_memory_lock;
@ -191,8 +192,8 @@ namespace ams::kern {
m_alias_region_end(Null<KProcessAddress>), m_stack_region_start(Null<KProcessAddress>), m_stack_region_end(Null<KProcessAddress>),
m_kernel_map_region_start(Null<KProcessAddress>), m_kernel_map_region_end(Null<KProcessAddress>), m_alias_code_region_start(Null<KProcessAddress>),
m_alias_code_region_end(Null<KProcessAddress>), m_code_region_start(Null<KProcessAddress>), m_code_region_end(Null<KProcessAddress>),
m_max_heap_size(), m_mapped_physical_memory_size(), m_mapped_unsafe_physical_memory(), m_mapped_ipc_server_memory(), m_general_lock(),
m_map_physical_memory_lock(), m_device_map_lock(), m_impl(util::ConstantInitialize), m_memory_block_manager(util::ConstantInitialize),
m_max_heap_size(), m_mapped_physical_memory_size(), m_mapped_unsafe_physical_memory(), m_mapped_insecure_memory(), m_mapped_ipc_server_memory(),
m_general_lock(), m_map_physical_memory_lock(), m_device_map_lock(), m_impl(util::ConstantInitialize), m_memory_block_manager(util::ConstantInitialize),
m_allocate_option(), m_address_space_width(), m_is_kernel(), m_enable_aslr(), m_enable_device_address_space_merge(),
m_memory_block_slab_manager(), m_block_info_manager(), m_resource_limit(), m_cached_physical_linear_region(), m_cached_physical_heap_region(),
m_heap_fill_value(), m_ipc_fill_value(), m_stack_fill_value()
@ -365,6 +366,8 @@ namespace ams::kern {
Result UnmapIoRegion(KProcessAddress dst_address, KPhysicalAddress phys_addr, size_t size);
Result MapStatic(KPhysicalAddress phys_addr, size_t size, KMemoryPermission perm);
Result MapRegion(KMemoryRegionType region_type, KMemoryPermission perm);
Result MapInsecureMemory(KProcessAddress address, size_t size);
Result UnmapInsecureMemory(KProcessAddress address, size_t size);
Result MapPages(KProcessAddress *out_addr, size_t num_pages, size_t alignment, KPhysicalAddress phys_addr, KProcessAddress region_start, size_t region_num_pages, KMemoryState state, KMemoryPermission perm) {
R_RETURN(this->MapPages(out_addr, num_pages, alignment, phys_addr, true, region_start, region_num_pages, state, perm));

6
libraries/libmesosphere/include/mesosphere/kern_k_system_control_base.hpp
View file

@ -25,6 +25,8 @@ namespace ams::kern {
namespace ams::kern {
class KResourceLimit;
class KSystemControlBase {
public:
/* This can be overridden as needed. */
@ -86,6 +88,10 @@ namespace ams::kern {
static size_t CalculateRequiredSecureMemorySize(size_t size, u32 pool);
static Result AllocateSecureMemory(KVirtualAddress *out, size_t size, u32 pool);
static void FreeSecureMemory(KVirtualAddress address, size_t size, u32 pool);
/* Insecure Memory. */
static KResourceLimit *GetInsecureMemoryResourceLimit();
static u32 GetInsecureMemoryPool();
protected:
template<typename F>
static ALWAYS_INLINE u64 GenerateUniformRange(u64 min, u64 max, F f) {