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kernel: reduce page table region checking

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This commit is contained in:
Liam
2023-07-14 21:58:20 -04:00
parent a85ce8ea56
commit 474db2d8da
8 changed files with 23 additions and 87 deletions
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25
src/core/hle/kernel/svc/svc_memory.cpp
View File

@ -63,36 +63,13 @@ Result MapUnmapMemorySanityChecks(const KPageTable& manager, u64 dst_addr, u64 s
R_THROW(ResultInvalidCurrentMemory);
}
if (!manager.IsInsideAddressSpace(src_addr, size)) {
if (!manager.Contains(src_addr, size)) {
LOG_ERROR(Kernel_SVC,
"Source is not within the address space, addr=0x{:016X}, size=0x{:016X}",
src_addr, size);
R_THROW(ResultInvalidCurrentMemory);
}
if (manager.IsOutsideStackRegion(dst_addr, size)) {
LOG_ERROR(Kernel_SVC,
"Destination is not within the stack region, addr=0x{:016X}, size=0x{:016X}",
dst_addr, size);
R_THROW(ResultInvalidMemoryRegion);
}
if (manager.IsInsideHeapRegion(dst_addr, size)) {
LOG_ERROR(Kernel_SVC,
"Destination does not fit within the heap region, addr=0x{:016X}, "
"size=0x{:016X}",
dst_addr, size);
R_THROW(ResultInvalidMemoryRegion);
}
if (manager.IsInsideAliasRegion(dst_addr, size)) {
LOG_ERROR(Kernel_SVC,
"Destination does not fit within the map region, addr=0x{:016X}, "
"size=0x{:016X}",
dst_addr, size);
R_THROW(ResultInvalidMemoryRegion);
}
R_SUCCEED();
}

8
src/core/hle/kernel/svc/svc_physical_memory.cpp
View File

@ -51,14 +51,14 @@ Result MapPhysicalMemory(Core::System& system, u64 addr, u64 size) {
R_THROW(ResultInvalidState);
}
if (!page_table.IsInsideAddressSpace(addr, size)) {
if (!page_table.Contains(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr,
size);
R_THROW(ResultInvalidMemoryRegion);
}
if (page_table.IsOutsideAliasRegion(addr, size)) {
if (!page_table.IsInAliasRegion(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr,
size);
@ -100,14 +100,14 @@ Result UnmapPhysicalMemory(Core::System& system, u64 addr, u64 size) {
R_THROW(ResultInvalidState);
}
if (!page_table.IsInsideAddressSpace(addr, size)) {
if (!page_table.Contains(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr,
size);
R_THROW(ResultInvalidMemoryRegion);
}
if (page_table.IsOutsideAliasRegion(addr, size)) {
if (!page_table.IsInAliasRegion(addr, size)) {
LOG_ERROR(Kernel_SVC,
"Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr,
size);

4
src/core/hle/kernel/svc/svc_process.cpp
View File

@ -66,8 +66,8 @@ Result GetProcessList(Core::System& system, s32* out_num_processes, u64 out_proc
auto& kernel = system.Kernel();
const auto total_copy_size = out_process_ids_size * sizeof(u64);
if (out_process_ids_size > 0 && !GetCurrentProcess(kernel).GetPageTable().IsInsideAddressSpace(
out_process_ids, total_copy_size)) {
if (out_process_ids_size > 0 &&
!GetCurrentProcess(kernel).GetPageTable().Contains(out_process_ids, total_copy_size)) {
LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}",
out_process_ids, out_process_ids + total_copy_size);
R_THROW(ResultInvalidCurrentMemory);

20
src/core/hle/kernel/svc/svc_process_memory.cpp
View File

@ -179,7 +179,7 @@ Result MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst
}
auto& page_table = process->GetPageTable();
if (!page_table.IsInsideAddressSpace(src_address, size)) {
if (!page_table.Contains(src_address, size)) {
LOG_ERROR(Kernel_SVC,
"Source address range is not within the address space (src_address=0x{:016X}, "
"size=0x{:016X}).",
@ -187,14 +187,6 @@ Result MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst
R_THROW(ResultInvalidCurrentMemory);
}
if (!page_table.IsInsideASLRRegion(dst_address, size)) {
LOG_ERROR(Kernel_SVC,
"Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
"size=0x{:016X}).",
dst_address, size);
R_THROW(ResultInvalidMemoryRegion);
}
R_RETURN(page_table.MapCodeMemory(dst_address, src_address, size));
}
@ -247,7 +239,7 @@ Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 d
}
auto& page_table = process->GetPageTable();
if (!page_table.IsInsideAddressSpace(src_address, size)) {
if (!page_table.Contains(src_address, size)) {
LOG_ERROR(Kernel_SVC,
"Source address range is not within the address space (src_address=0x{:016X}, "
"size=0x{:016X}).",
@ -255,14 +247,6 @@ Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 d
R_THROW(ResultInvalidCurrentMemory);
}
if (!page_table.IsInsideASLRRegion(dst_address, size)) {
LOG_ERROR(Kernel_SVC,
"Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
"size=0x{:016X}).",
dst_address, size);
R_THROW(ResultInvalidMemoryRegion);
}
R_RETURN(page_table.UnmapCodeMemory(dst_address, src_address, size,
KPageTable::ICacheInvalidationStrategy::InvalidateAll));
}

2
src/core/hle/kernel/svc/svc_thread.cpp
View File

@ -236,7 +236,7 @@ Result GetThreadList(Core::System& system, s32* out_num_threads, u64 out_thread_
const auto total_copy_size = out_thread_ids_size * sizeof(u64);
if (out_thread_ids_size > 0 &&
!current_process->GetPageTable().IsInsideAddressSpace(out_thread_ids, total_copy_size)) {
!current_process->GetPageTable().Contains(out_thread_ids, total_copy_size)) {
LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}",
out_thread_ids, out_thread_ids + total_copy_size);
R_THROW(ResultInvalidCurrentMemory);