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https://github.com/Atmosphere-NX/Atmosphere
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kern: add InfoType_TransferMemoryHint
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3 changed files with 31 additions and 0 deletions
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@ -48,6 +48,22 @@ namespace ams::kern {
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KProcess *GetOwner() const { return m_owner; }
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KProcess *GetOwner() const { return m_owner; }
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KProcessAddress GetSourceAddress() { return m_address; }
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KProcessAddress GetSourceAddress() { return m_address; }
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size_t GetSize() const { return m_is_initialized ? GetReference(m_page_group).GetNumPages() * PageSize : 0; }
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size_t GetSize() const { return m_is_initialized ? GetReference(m_page_group).GetNumPages() * PageSize : 0; }
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constexpr uintptr_t GetHint() const {
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/* Get memory size. */
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const size_t size = this->GetSize();
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/* TODO: Is this architecture specific? */
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if (size >= 2_MB) {
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return GetInteger(m_address) & (2_MB - 1);
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} else if (size >= 64_KB) {
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return GetInteger(m_address) & (64_KB - 1);
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} else if (size >= 4_KB) {
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return GetInteger(m_address) & (4_KB - 1);
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} else {
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return 0;
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}
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}
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};
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};
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}
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}
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@ -314,6 +314,19 @@ namespace ams::kern::svc {
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*out = io_region->GetHint();
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*out = io_region->GetHint();
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}
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}
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break;
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break;
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case ams::svc::InfoType_TransferMemoryHint:
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{
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/* Verify the sub-type is valid. */
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R_UNLESS(info_subtype == 0, svc::ResultInvalidCombination());
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/* Get the transfer memory from its handle. */
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KScopedAutoObject transfer_memory = GetCurrentProcess().GetHandleTable().GetObject<KTransferMemory>(handle);
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R_UNLESS(transfer_memory.IsNotNull(), svc::ResultInvalidHandle());
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/* Get the transfer memory's address hint. */
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*out = transfer_memory->GetHint();
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}
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break;
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case ams::svc::InfoType_MesosphereMeta:
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case ams::svc::InfoType_MesosphereMeta:
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{
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{
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/* Verify the handle is invalid. */
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/* Verify the handle is invalid. */
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@ -191,6 +191,8 @@ namespace ams::svc {
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InfoType_IsSvcPermitted = 26,
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InfoType_IsSvcPermitted = 26,
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InfoType_IoRegionHint = 27,
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InfoType_IoRegionHint = 27,
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InfoType_AliasRegionExtraSize = 28,
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InfoType_AliasRegionExtraSize = 28,
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/* ... */
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InfoType_TransferMemoryHint = 34,
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InfoType_MesosphereMeta = 65000,
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InfoType_MesosphereMeta = 65000,
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InfoType_MesosphereCurrentProcess = 65001,
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InfoType_MesosphereCurrentProcess = 65001,
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