diff --git a/libraries/libmesosphere/include/mesosphere/kern_k_io_region.hpp b/libraries/libmesosphere/include/mesosphere/kern_k_io_region.hpp
index 7edb02c97..5402bd708 100644
--- a/libraries/libmesosphere/include/mesosphere/kern_k_io_region.hpp
+++ b/libraries/libmesosphere/include/mesosphere/kern_k_io_region.hpp
@@ -75,6 +75,19 @@ namespace ams::kern {
 
             constexpr ALWAYS_INLINE KPhysicalAddress GetAddress() const { return m_physical_address; }
             constexpr ALWAYS_INLINE size_t GetSize() const { return m_size; }
+
+            constexpr uintptr_t GetHint() const {
+                /* TODO: Is this architecture specific? */
+                if (m_size >= 2_MB) {
+                    return GetInteger(m_physical_address) & (2_MB - 1);
+                } else if (m_size >= 64_KB) {
+                    return GetInteger(m_physical_address) & (64_KB - 1);
+                } else if (m_size >= 4_KB) {
+                    return GetInteger(m_physical_address) & (4_KB - 1);
+                } else {
+                    return 0;
+                }
+            }
     };
 
 }
diff --git a/libraries/libmesosphere/source/svc/kern_svc_info.cpp b/libraries/libmesosphere/source/svc/kern_svc_info.cpp
index e6e0c97ae..3c107b590 100644
--- a/libraries/libmesosphere/source/svc/kern_svc_info.cpp
+++ b/libraries/libmesosphere/source/svc/kern_svc_info.cpp
@@ -297,6 +297,19 @@ namespace ams::kern::svc {
                         *out = GetCurrentProcess().IsPermittedSvc(static_cast<svc::SvcId>(info_subtype));
                     }
                     break;
+                case ams::svc::InfoType_IoRegionHint:
+                    {
+                        /* Verify the sub-type is valid. */
+                        R_UNLESS(info_subtype == 0, svc::ResultInvalidCombination());
+
+                        /* Get the io region from its handle. */
+                        KScopedAutoObject io_region = GetCurrentProcess().GetHandleTable().GetObject<KIoRegion>(handle);
+                        R_UNLESS(io_region.IsNotNull(), svc::ResultInvalidHandle());
+
+                        /* Get the io region's address hint. */
+                        *out = io_region->GetHint();
+                    }
+                    break;
                 case ams::svc::InfoType_MesosphereMeta:
                     {
                         /* Verify the handle is invalid. */
diff --git a/libraries/libvapours/include/vapours/svc/svc_types_common.hpp b/libraries/libvapours/include/vapours/svc/svc_types_common.hpp
index 3359ff2d4..c600519df 100644
--- a/libraries/libvapours/include/vapours/svc/svc_types_common.hpp
+++ b/libraries/libvapours/include/vapours/svc/svc_types_common.hpp
@@ -188,6 +188,7 @@ namespace ams::svc {
         InfoType_FreeThreadCount                = 24,
         InfoType_ThreadTickCount                = 25,
         InfoType_IsSvcPermitted                 = 26,
+        InfoType_IoRegionHint                   = 27,
 
         InfoType_MesosphereMeta                 = 65000,
         InfoType_MesosphereCurrentProcess       = 65001,