diff --git a/target/linux/x86/64/config-5.15 b/target/linux/x86/64/config-5.15
index 720809e9857..28a4758e572 100644
--- a/target/linux/x86/64/config-5.15
+++ b/target/linux/x86/64/config-5.15
@@ -328,6 +328,7 @@ CONFIG_ND_CLAIM=y
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NET_FAILOVER=y
 CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NET_PTP_CLASSIFY=y
 # CONFIG_NITRO_ENCLAVES is not set
 CONFIG_NR_CPUS=512
 CONFIG_NR_CPUS_DEFAULT=64
@@ -395,7 +396,11 @@ CONFIG_PM_SLEEP_SMP=y
 CONFIG_PNP=y
 CONFIG_PNPACPI=y
 CONFIG_PNP_DEBUG_MESSAGES=y
+CONFIG_PPS=y
 CONFIG_PROC_EVENTS=y
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_PTP_1588_CLOCK_KVM=y
+CONFIG_PTP_1588_CLOCK_VMW=y
 CONFIG_PVH=y
 CONFIG_QUEUED_RWLOCKS=y
 CONFIG_QUEUED_SPINLOCKS=y
diff --git a/target/linux/x86/generic/config-5.15 b/target/linux/x86/generic/config-5.15
index 0aa6f3da5a5..06f00080216 100644
--- a/target/linux/x86/generic/config-5.15
+++ b/target/linux/x86/generic/config-5.15
@@ -285,6 +285,7 @@ CONFIG_ND_CLAIM=y
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NET_FAILOVER=y
 CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NET_PTP_CLASSIFY=y
 CONFIG_NO_HZ=y
 CONFIG_NR_CPUS=4
 CONFIG_NR_CPUS_DEFAULT=8
@@ -346,8 +347,12 @@ CONFIG_PNP=y
 CONFIG_PNPACPI=y
 # CONFIG_PNPBIOS is not set
 CONFIG_PNP_DEBUG_MESSAGES=y
+CONFIG_PPS=y
 CONFIG_PREEMPT_NOTIFIERS=y
 CONFIG_PROC_EVENTS=y
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_PTP_1588_CLOCK_KVM=y
+CONFIG_PTP_1588_CLOCK_VMW=y
 CONFIG_PVH=y
 CONFIG_QUEUED_RWLOCKS=y
 CONFIG_QUEUED_SPINLOCKS=y