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kern: SvcInvalidateProcessDataCache
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parent
46935fea80
commit
418de7b0dc
4 changed files with 91 additions and 2 deletions
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@ -128,6 +128,10 @@ namespace ams::kern::arch::arm64 {
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return this->page_table.MakeAndOpenPageGroupContiguous(out, address, num_pages, state_mask, state, perm_mask, perm, attr_mask, attr);
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}
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Result InvalidateProcessDataCache(KProcessAddress address, size_t size) {
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return this->page_table.InvalidateProcessDataCache(address, size);
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}
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Result LockForDeviceAddressSpace(KPageGroup *out, KProcessAddress address, size_t size, KMemoryPermission perm, bool is_aligned) {
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return this->page_table.LockForDeviceAddressSpace(out, address, size, perm, is_aligned);
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}
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@ -313,6 +313,8 @@ namespace ams::kern {
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Result MakeAndOpenPageGroup(KPageGroup *out, KProcessAddress address, size_t num_pages, u32 state_mask, u32 state, u32 perm_mask, u32 perm, u32 attr_mask, u32 attr);
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Result MakeAndOpenPageGroupContiguous(KPageGroup *out, KProcessAddress address, size_t num_pages, u32 state_mask, u32 state, u32 perm_mask, u32 perm, u32 attr_mask, u32 attr);
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Result InvalidateProcessDataCache(KProcessAddress address, size_t size);
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Result LockForDeviceAddressSpace(KPageGroup *out, KProcessAddress address, size_t size, KMemoryPermission perm, bool is_aligned);
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Result UnlockForDeviceAddressSpace(KProcessAddress address, size_t size);
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Result LockForIpcUserBuffer(KPhysicalAddress *out, KProcessAddress address, size_t size);
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@ -1822,6 +1822,73 @@ namespace ams::kern {
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return ResultSuccess();
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}
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Result KPageTableBase::InvalidateProcessDataCache(KProcessAddress address, size_t size) {
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/* Check that the region is in range. */
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R_UNLESS(this->Contains(address, size), svc::ResultInvalidCurrentMemory());
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/* Lock the table. */
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KScopedLightLock lk(this->general_lock);
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/* Check the memory state. */
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R_TRY(this->CheckMemoryStateContiguous(address, size, KMemoryState_FlagReferenceCounted, KMemoryState_FlagReferenceCounted, KMemoryPermission_UserReadWrite, KMemoryPermission_UserReadWrite, KMemoryAttribute_Uncached, KMemoryAttribute_None));
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/* Get the impl. */
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auto &impl = this->GetImpl();
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/* Begin traversal. */
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TraversalContext context;
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TraversalEntry next_entry;
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bool traverse_valid = impl.BeginTraversal(std::addressof(next_entry), std::addressof(context), address);
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R_UNLESS(traverse_valid, svc::ResultInvalidCurrentMemory());
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/* Prepare tracking variables. */
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KPhysicalAddress cur_addr = next_entry.phys_addr;
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size_t cur_size = next_entry.block_size - (GetInteger(cur_addr) & (next_entry.block_size - 1));
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size_t tot_size = cur_size;
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/* Iterate. */
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while (tot_size < size) {
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/* Continue the traversal. */
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traverse_valid = impl.ContinueTraversal(std::addressof(next_entry), std::addressof(context));
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R_UNLESS(traverse_valid, svc::ResultInvalidCurrentMemory());
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if (next_entry.phys_addr != (cur_addr + cur_size)) {
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/* Check that the pages are linearly mapped. */
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R_UNLESS(IsLinearMappedPhysicalAddress(cur_addr), svc::ResultInvalidCurrentMemory());
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/* Invalidate the block. */
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if (cur_size > 0) {
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/* NOTE: Nintendo does not check the result of invalidation. */
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cpu::InvalidateDataCache(GetVoidPointer(GetLinearMappedVirtualAddress(cur_addr)), cur_size);
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}
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/* Advance. */
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cur_addr = next_entry.phys_addr;
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cur_size = next_entry.block_size;
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} else {
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cur_size += next_entry.block_size;
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}
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tot_size += next_entry.block_size;
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}
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/* Ensure we use the right size for the last block. */
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if (tot_size > size) {
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cur_size -= (tot_size - size);
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}
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/* Check that the last block is linearly mapped. */
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R_UNLESS(IsLinearMappedPhysicalAddress(cur_addr), svc::ResultInvalidCurrentMemory());
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/* Invalidate the last block. */
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if (cur_size > 0) {
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/* NOTE: Nintendo does not check the result of invalidation. */
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cpu::InvalidateDataCache(GetVoidPointer(GetLinearMappedVirtualAddress(cur_addr)), cur_size);
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}
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return ResultSuccess();
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}
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Result KPageTableBase::LockForDeviceAddressSpace(KPageGroup *out, KProcessAddress address, size_t size, KMemoryPermission perm, bool is_aligned) {
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/* Lightly validate the range before doing anything else. */
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const size_t num_pages = size / PageSize;
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@ -73,6 +73,22 @@ namespace ams::kern::svc {
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return ResultSuccess();
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}
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Result InvalidateProcessDataCache(ams::svc::Handle process_handle, uint64_t address, uint64_t size) {
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/* Validate address/size. */
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R_UNLESS(size > 0, svc::ResultInvalidSize());
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R_UNLESS(address == static_cast<uintptr_t>(address), svc::ResultInvalidCurrentMemory());
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R_UNLESS(size == static_cast<size_t>(size), svc::ResultInvalidCurrentMemory());
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/* Get the process from its handle. */
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KScopedAutoObject process = GetCurrentProcess().GetHandleTable().GetObject<KProcess>(process_handle);
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R_UNLESS(process.IsNotNull(), svc::ResultInvalidHandle());
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/* Invalidate the cache. */
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R_TRY(process->GetPageTable().InvalidateProcessDataCache(address, size));
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return ResultSuccess();
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}
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Result StoreProcessDataCache(ams::svc::Handle process_handle, uint64_t address, uint64_t size) {
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/* Validate address/size. */
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R_UNLESS(size > 0, svc::ResultInvalidSize());
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@ -140,7 +156,7 @@ namespace ams::kern::svc {
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}
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Result InvalidateProcessDataCache64(ams::svc::Handle process_handle, uint64_t address, uint64_t size) {
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MESOSPHERE_PANIC("Stubbed SvcInvalidateProcessDataCache64 was called.");
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return InvalidateProcessDataCache(process_handle, address, size);
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}
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Result StoreProcessDataCache64(ams::svc::Handle process_handle, uint64_t address, uint64_t size) {
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@ -162,7 +178,7 @@ namespace ams::kern::svc {
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}
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Result InvalidateProcessDataCache64From32(ams::svc::Handle process_handle, uint64_t address, uint64_t size) {
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MESOSPHERE_PANIC("Stubbed SvcInvalidateProcessDataCache64From32 was called.");
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return InvalidateProcessDataCache(process_handle, address, size);
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}
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Result StoreProcessDataCache64From32(ams::svc::Handle process_handle, uint64_t address, uint64_t size) {
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