Index: /Source/JavaScriptCore/runtime/JSCConfig.cpp
===================================================================
--- /Source/JavaScriptCore/runtime/JSCConfig.cpp	(revision 258459)
+++ /Source/JavaScriptCore/runtime/JSCConfig.cpp	(revision 258460)
@@ -38,5 +38,5 @@
 namespace JSC {
 
-alignas(PageSize) JS_EXPORT_PRIVATE Config g_jscConfig;
+alignas(ConfigSizeToProtect) JS_EXPORT_PRIVATE Config g_jscConfig;
 
 void Config::disableFreezingForTesting()
Index: /Source/JavaScriptCore/runtime/JSCConfig.h
===================================================================
--- /Source/JavaScriptCore/runtime/JSCConfig.h	(revision 258459)
+++ /Source/JavaScriptCore/runtime/JSCConfig.h	(revision 258460)
@@ -35,11 +35,5 @@
 class VM;
 
-#if CPU(ARM64) || PLATFORM(WATCHOS)
-constexpr size_t PageSize = 16 * KB;
-#else
-constexpr size_t PageSize = 4 * KB;
-#endif
-
-constexpr size_t ConfigSizeToProtect = PageSize;
+constexpr size_t ConfigSizeToProtect = 16 * KB;
 
 #if ENABLE(SEPARATED_WX_HEAP)
@@ -91,8 +85,7 @@
 };
 
-extern "C" alignas(PageSize) JS_EXPORT_PRIVATE Config g_jscConfig;
+extern "C" alignas(ConfigSizeToProtect) JS_EXPORT_PRIVATE Config g_jscConfig;
 
 static_assert(sizeof(Config) == ConfigSizeToProtect, "");
-static_assert(roundUpToMultipleOf<PageSize>(ConfigSizeToProtect) == ConfigSizeToProtect, "");
 
 } // namespace JSC
Index: /Source/bmalloc/bmalloc/Gigacage.h
===================================================================
--- /Source/bmalloc/bmalloc/Gigacage.h	(revision 258459)
+++ /Source/bmalloc/bmalloc/Gigacage.h	(revision 258460)
@@ -67,14 +67,14 @@
 #if GIGACAGE_ENABLED
 
+constexpr size_t configSizeToProtect = 16 * bmalloc::Sizes::kB;
+
 #if BOS_EFFECTIVE_ADDRESS_WIDTH < 48
 constexpr size_t primitiveGigacageSize = 2 * bmalloc::Sizes::GB;
 constexpr size_t jsValueGigacageSize = 2 * bmalloc::Sizes::GB;
 constexpr size_t maximumCageSizeReductionForSlide = bmalloc::Sizes::GB / 4;
-constexpr size_t configSizeToProtect = 16 * bmalloc::Sizes::kB;
 #else
 constexpr size_t primitiveGigacageSize = 32 * bmalloc::Sizes::GB;
 constexpr size_t jsValueGigacageSize = 16 * bmalloc::Sizes::GB;
 constexpr size_t maximumCageSizeReductionForSlide = 4 * bmalloc::Sizes::GB;
-constexpr size_t configSizeToProtect = 4 * bmalloc::Sizes::kB;
 #endif