diff --git a/eng/targetingpacks.targets b/eng/targetingpacks.targets
index befd249f231d2..8a6a8b96a2f56 100644
--- a/eng/targetingpacks.targets
+++ b/eng/targetingpacks.targets
@@ -43,7 +43,7 @@
                              LatestRuntimeFrameworkVersion="$(ProductVersion)"
                              RuntimeFrameworkName="$(LocalFrameworkOverrideName)"
                              RuntimePackNamePatterns="$(LocalFrameworkOverrideName).Runtime.**RID**"
-                             RuntimePackRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;rhel.6-x64;tizen.4.0.0-armel;tizen.5.0.0-armel;win-arm64;win-x64;win-x86;linux-musl-arm;osx-arm64;maccatalyst-x64;maccatalyst-arm64;linux-s390x;linux-bionic-arm;linux-bionic-arm64;linux-bionic-x64;linux-bionic-x86;freebsd-x64;freebsd-arm64;linux-ppc64le"
+                             RuntimePackRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;rhel.6-x64;tizen.4.0.0-armel;tizen.5.0.0-armel;win-arm64;win-x64;win-x86;linux-musl-arm;osx-arm64;maccatalyst-x64;maccatalyst-arm64;linux-s390x;linux-bionic-arm;linux-bionic-arm64;linux-bionic-x64;linux-bionic-x86;freebsd-x64;freebsd-arm64;linux-ppc64le;linux-riscv64;linux-musl-riscv64"
                              TargetFramework="$(NetCoreAppCurrent)"
                              TargetingPackName="$(LocalFrameworkOverrideName).Ref"
                              TargetingPackVersion="$(ProductVersion)"
@@ -53,7 +53,7 @@
                       RuntimeFrameworkName="$(LocalFrameworkOverrideName)"
                       LatestRuntimeFrameworkVersion="$(ProductVersion)"
                       RuntimePackNamePatterns="$(LocalFrameworkOverrideName).Runtime.Mono.**RID**"
-                      RuntimePackRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;rhel.6-x64;win-arm64;win-x64;win-x86;linux-musl-arm;osx-arm64;linux-s390x;linux-bionic-arm;linux-bionic-arm64;linux-bionic-x64;linux-bionic-x86;browser-wasm;ios-arm64;ios-arm;iossimulator-arm64;iossimulator-x64;iossimulator-x86;tvos-arm64;tvossimulator-arm64;tvossimulator-x64;maccatalyst-x64;maccatalyst-arm64;android-arm64;android-arm;android-x64;android-x86"
+                      RuntimePackRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;linux-riscv64;linux-musl-riscv64;rhel.6-x64;win-arm64;win-x64;win-x86;linux-musl-arm;osx-arm64;linux-s390x;linux-bionic-arm;linux-bionic-arm64;linux-bionic-x64;linux-bionic-x86;browser-wasm;ios-arm64;ios-arm;iossimulator-arm64;iossimulator-x64;iossimulator-x86;tvos-arm64;tvossimulator-arm64;tvossimulator-x64;maccatalyst-x64;maccatalyst-arm64;android-arm64;android-arm;android-x64;android-x86"
                       RuntimePackLabels="Mono"
                       Condition="'$(UseLocalTargetingRuntimePack)' == 'true' and ('@(KnownRuntimePack)' == '' or @(KnownRuntimePack->WithMetadataValue('Identity', 'Microsoft.NETCore.App')->WithMetadataValue('RuntimePackLabels', 'Mono')->WithMetadataValue('TargetFramework', '$(NetCoreAppCurrent)')) == '')" />
     <!-- always add wasi-wasm as it is never added by the sdk -->
@@ -78,7 +78,7 @@
                         TargetFramework="$(NetCoreAppCurrent)"
                         Crossgen2PackNamePattern="$(LocalFrameworkOverrideName).Crossgen2.**RID**"
                         Crossgen2PackVersion="$(ProductVersion)"
-                        Crossgen2RuntimeIdentifiers="linux-musl-x64;linux-x64;win-x64;linux-arm;linux-arm64;linux-musl-arm;linux-musl-arm64;osx-arm64;osx-x64;win-arm64;win-x86"
+                        Crossgen2RuntimeIdentifiers="linux-musl-x64;linux-x64;win-x64;linux-arm;linux-arm64;linux-musl-arm;linux-musl-arm64;osx-arm64;osx-x64;win-arm64;win-x86;linux-riscv64;linux-musl-riscv64"
                         Condition="'$(UseLocalCrossgen2Pack)' == 'true' and '@(KnownCrossgen2Pack->AnyHaveMetadataValue('TargetFramework', '$(NetCoreAppCurrent)'))' != 'true'" />
     <KnownAppHostPack Include="$(LocalFrameworkOverrideName)"
                       ExcludedRuntimeIdentifiers="android"
diff --git a/src/coreclr/tools/Common/Compiler/InstructionSetSupport.cs b/src/coreclr/tools/Common/Compiler/InstructionSetSupport.cs
index 81e2adbc2003f..f3229da1b6e83 100644
--- a/src/coreclr/tools/Common/Compiler/InstructionSetSupport.cs
+++ b/src/coreclr/tools/Common/Compiler/InstructionSetSupport.cs
@@ -105,7 +105,7 @@ public static string GetHardwareIntrinsicId(TargetArchitecture architecture, Typ
             }
             else
             {
-                throw new InternalCompilerErrorException("Unknown architecture");
+                throw new InternalCompilerErrorException($"Unknown architecture '{architecture}'");
             }
 
             return potentialType.Name;
diff --git a/src/coreclr/tools/aot/ILCompiler.Diagnostics/PerfMapWriter.cs b/src/coreclr/tools/aot/ILCompiler.Diagnostics/PerfMapWriter.cs
index 6f1d3113c3150..98941b37c185e 100644
--- a/src/coreclr/tools/aot/ILCompiler.Diagnostics/PerfMapWriter.cs
+++ b/src/coreclr/tools/aot/ILCompiler.Diagnostics/PerfMapWriter.cs
@@ -135,6 +135,7 @@ private static PerfmapTokensForTarget TranslateTargetDetailsToPerfmapConstants(T
                 TargetArchitecture.ARM64 => PerfMapArchitectureToken.ARM64,
                 TargetArchitecture.X64 => PerfMapArchitectureToken.X64,
                 TargetArchitecture.X86 => PerfMapArchitectureToken.X86,
+                TargetArchitecture.RiscV64 => PerfMapArchitectureToken.RiscV64,
                 _ => throw new NotImplementedException(details.Architecture.ToString())
             };
 
diff --git a/src/coreclr/tools/aot/ILCompiler.Diagnostics/ReadyToRunDiagnosticsConstants.cs b/src/coreclr/tools/aot/ILCompiler.Diagnostics/ReadyToRunDiagnosticsConstants.cs
index fea26f9db0289..395b26f151ee8 100644
--- a/src/coreclr/tools/aot/ILCompiler.Diagnostics/ReadyToRunDiagnosticsConstants.cs
+++ b/src/coreclr/tools/aot/ILCompiler.Diagnostics/ReadyToRunDiagnosticsConstants.cs
@@ -19,6 +19,7 @@ public enum PerfMapArchitectureToken : uint
     ARM64 = 2,
     X64 = 3,
     X86 = 4,
+    RiscV64 = 5,
 }
 
 public enum PerfMapOSToken : uint
diff --git a/src/installer/pkg/projects/netcoreappRIDs.props b/src/installer/pkg/projects/netcoreappRIDs.props
index b0f62cee619de..6c84841697b42 100644
--- a/src/installer/pkg/projects/netcoreappRIDs.props
+++ b/src/installer/pkg/projects/netcoreappRIDs.props
@@ -69,5 +69,11 @@
     <UnofficialBuildRID Include="linux-musl-ppc64le">
       <Platform>ppc64le</Platform>
     </UnofficialBuildRID>
+    <UnofficialBuildRID Include="linux-riscv64">
+      <Platform>riscv64</Platform>
+    </UnofficialBuildRID>
+    <UnofficialBuildRID Include="linux-musl-riscv64">
+      <Platform>riscv64</Platform>
+    </UnofficialBuildRID>
   </ItemGroup>
 </Project>
diff --git a/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Crossgen2.sfxproj b/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Crossgen2.sfxproj
index c3fd9eab49047..b531549b4f2d0 100644
--- a/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Crossgen2.sfxproj
+++ b/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Crossgen2.sfxproj
@@ -12,8 +12,10 @@
     <SharedFrameworkHostFileNameOverride>crossgen2</SharedFrameworkHostFileNameOverride>
     <!-- Build this pack for any RID if building from source. Otherwise, only build select RIDs. -->
     <RuntimeIdentifiers Condition="'$(DotNetBuildSourceOnly)' != 'true'">linux-x64;linux-musl-x64;linux-arm;linux-musl-arm;linux-arm64;linux-musl-arm64;osx-x64;osx-arm64;win-x64;win-x86;win-arm64</RuntimeIdentifiers>
-    <!-- FreeBSD runtime/apphost packs aren't built in the official build so only reference the RIDs when targetting FreeBSD -->
+    <!-- runtime/apphost packs of these platforms aren't built in the official build, so only reference the RIDs when we are targetting the community-supported platforms. -->
     <RuntimeIdentifiers Condition="'$(DotNetBuildSourceOnly)' != 'true' and '$(TargetOS)' == 'freebsd'">$(RuntimeIdentifiers);freebsd-x64;freebsd-arm64</RuntimeIdentifiers>
+    <RuntimeIdentifiers Condition="'$(DotNetBuildSourceOnly)' != 'true' and '$(TargetsLinuxMusl)' == 'true' and '$(TargetArchitecture)' == 'riscv64'">$(RuntimeIdentifiers);linux-musl-riscv64</RuntimeIdentifiers>
+    <RuntimeIdentifiers Condition="'$(DotNetBuildSourceOnly)' != 'true' and '$(TargetsLinux)' == 'true' and '$(TargetsLinuxMusl)' != 'true' and '$(TargetArchitecture)' == 'riscv64'">$(RuntimeIdentifiers);linux-riscv64</RuntimeIdentifiers>
     <GenerateInstallers>false</GenerateInstallers>
     <HostJsonTargetPath>tools/</HostJsonTargetPath>
     <PermitDllAndExeFilesLackingFileVersion>true</PermitDllAndExeFilesLackingFileVersion>
diff --git a/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.props b/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.props
index 007249b9888f4..c8ca3be5fd696 100644
--- a/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.props
+++ b/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.props
@@ -11,8 +11,6 @@
     <PublishReadyToRun Condition="'$(TargetOS)' == 'netbsd' or '$(TargetOS)' == 'illumos' or '$(TargetOS)' == 'solaris' or '$(TargetOS)' == 'haiku'">false</PublishReadyToRun>
     <!-- Disable crossgen on FreeBSD when cross building from Linux. -->
     <PublishReadyToRun Condition="'$(TargetOS)'=='freebsd' and '$(CrossBuild)'=='true'">false</PublishReadyToRun>
-    <!-- Disable crossgen on riscv64. -->
-    <PublishReadyToRun Condition="'$(TargetArchitecture)'=='riscv64'">false</PublishReadyToRun>
     <!-- These components are installed by the root shared framework, but not others. -->
     <IncludeWerRelatedKeys>true</IncludeWerRelatedKeys>
     <IncludeBreadcrumbStoreFolder>true</IncludeBreadcrumbStoreFolder>
diff --git a/src/tasks/Crossgen2Tasks/ResolveReadyToRunCompilers.cs b/src/tasks/Crossgen2Tasks/ResolveReadyToRunCompilers.cs
index ced9becf153a7..843333ff3fcbb 100644
--- a/src/tasks/Crossgen2Tasks/ResolveReadyToRunCompilers.cs
+++ b/src/tasks/Crossgen2Tasks/ResolveReadyToRunCompilers.cs
@@ -230,6 +230,9 @@ private static bool ExtractTargetPlatformAndArchitecture(string runtimeIdentifie
                 case "x86":
                     architecture = Architecture.X86;
                     break;
+                case "riscv64":
+                    architecture = Architecture.RiscV64;
+                    break;
                 default:
                     return false;
             }
@@ -387,6 +390,7 @@ private static string ArchitectureToString(Architecture architecture)
                 Architecture.X64 => "x64",
                 Architecture.Arm => "arm",
                 Architecture.Arm64 => "arm64",
+                Architecture.RiscV64 => "riscv64",
                 _ => null
             };
         }