diff --git a/arch/x86/configs/deepin_x86_desktop_defconfig b/arch/x86/configs/deepin_x86_desktop_defconfig
index a064e10f450de..d115b08b1ae04 100644
--- a/arch/x86/configs/deepin_x86_desktop_defconfig
+++ b/arch/x86/configs/deepin_x86_desktop_defconfig
@@ -68,6 +68,7 @@ CONFIG_JAILHOUSE_GUEST=y
 CONFIG_ACRN_GUEST=y
 CONFIG_PROCESSOR_SELECT=y
 CONFIG_GART_IOMMU=y
+CONFIG_NR_CPUS=512
 CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
 CONFIG_X86_MCELOG_LEGACY=y
 CONFIG_PERF_EVENTS_INTEL_RAPL=m