diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c1236b187824e222a2c7fddd417272369767b06b..6bd763640925b00d3c12693ceb0d44a938f9c9e2 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2658,7 +2658,8 @@ config PCI_DOMAINS
 
 config PCI_MMCONFIG
 	bool "Support mmconfig PCI config space access"
-	depends on X86_64 && PCI && ACPI
+	default y
+	depends on X86_64 && PCI && (ACPI || SFI)
 
 config PCI_CNB20LE_QUIRK
 	bool "Read CNB20LE Host Bridge Windows" if EXPERT