diff --git a/llvm/test/lit.cfg.py b/llvm/test/lit.cfg.py
--- a/llvm/test/lit.cfg.py
+++ b/llvm/test/lit.cfg.py
@@ -365,6 +365,10 @@
     if not config.target_triple.startswith(("nvptx", "xcore")):
         config.available_features.add('object-emission')
 
+# Allow checking for specific details in the host triple
+if config.host_triple:
+    config.available_features.add('host=%s' % config.host_triple)
+
 if config.have_llvm_driver:
   config.available_features.add('llvm-driver')
 
diff --git a/llvm/test/tools/llvm-config/system-libs.test b/llvm/test/tools/llvm-config/system-libs.test
--- a/llvm/test/tools/llvm-config/system-libs.test
+++ b/llvm/test/tools/llvm-config/system-libs.test
@@ -1,6 +1,6 @@
 RUN: llvm-config --link-static --system-libs Support 2>&1 | FileCheck %s
 REQUIRES: static-libs
-UNSUPPORTED: system-windows
+UNSUPPORTED: host={{.*-windows-msvc}}
 CHECK: -l
 CHECK-NOT: error
 CHECK-NOT: warning
diff --git a/llvm/test/tools/llvm-config/system-libs.windows.test b/llvm/test/tools/llvm-config/system-libs.windows.test
--- a/llvm/test/tools/llvm-config/system-libs.windows.test
+++ b/llvm/test/tools/llvm-config/system-libs.windows.test
@@ -1,6 +1,6 @@
 RUN: llvm-config --link-static --system-libs Support 2>&1 | FileCheck %s
 REQUIRES: static-libs
-REQUIRES: system-windows
+REQUIRES: host={{.*-windows-msvc}}
 CHECK-NOT: -l
 CHECK: psapi.lib shell32.lib ole32.lib uuid.lib advapi32.lib
 CHECK-NOT: error