diff --git a/target/linux/x86/64/config-5.10 b/target/linux/x86/64/config-5.10
index 2db2f4998ba..6804d835191 100644
--- a/target/linux/x86/64/config-5.10
+++ b/target/linux/x86/64/config-5.10
@@ -301,8 +301,8 @@ CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NET_FAILOVER=y
 CONFIG_NET_FLOW_LIMIT=y
 # CONFIG_NITRO_ENCLAVES is not set
-CONFIG_NR_CPUS=8
-CONFIG_NR_CPUS_DEFAULT=64
+CONFIG_NR_CPUS=512
+CONFIG_NR_CPUS_DEFAULT=512
 CONFIG_NR_CPUS_RANGE_BEGIN=2
 CONFIG_NR_CPUS_RANGE_END=512
 CONFIG_NVME_CORE=y
diff --git a/target/linux/x86/64/config-5.4 b/target/linux/x86/64/config-5.4
index b97b9f64c1c..50521a5148b 100644
--- a/target/linux/x86/64/config-5.4
+++ b/target/linux/x86/64/config-5.4
@@ -312,8 +312,8 @@ CONFIG_ND_CLAIM=y
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NET_FAILOVER=y
 CONFIG_NET_FLOW_LIMIT=y
-CONFIG_NR_CPUS=8
-CONFIG_NR_CPUS_DEFAULT=64
+CONFIG_NR_CPUS=512
+CONFIG_NR_CPUS_DEFAULT=512
 CONFIG_NR_CPUS_RANGE_BEGIN=2
 CONFIG_NR_CPUS_RANGE_END=512
 # CONFIG_NUMA is not set