diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h
index 2da309088c6d..bbeb8ed8e211 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h
@@ -23,6 +23,7 @@ void intel_pxp_init_hw(struct intel_pxp *pxp);
 void intel_pxp_fini_hw(struct intel_pxp *pxp);
 
 void intel_pxp_mark_termination_in_progress(struct intel_pxp *pxp);
+void intel_pxp_tee_end_arb_fw_session(struct intel_pxp *pxp, u32 arb_session_id);
 
 int intel_pxp_start(struct intel_pxp *pxp);
 
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h
index 739f9072fa5f..26f7d9f01bf3 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h
@@ -12,6 +12,9 @@
 /* PXP-Opcode for Init Session */
 #define PXP42_CMDID_INIT_SESSION 0x1e
 
+/* PXP-Opcode for Invalidate Stream Key */
+#define PXP42_CMDID_INVALIDATE_STREAM_KEY 0x00000007
+
 /* PXP-Input-Packet: Init Session (Arb-Session) */
 struct pxp42_create_arb_in {
 	struct pxp_cmd_header header;
@@ -25,4 +28,16 @@ struct pxp42_create_arb_out {
 	struct pxp_cmd_header header;
 } __packed;
 
+/* PXP-Input-Packet: Invalidate Stream Key */
+struct pxp42_inv_stream_key_in {
+	struct pxp_cmd_header header;
+	u32 rsvd[3];
+} __packed;
+
+/* PXP-Output-Packet: Invalidate Stream Key */
+struct pxp42_inv_stream_key_out {
+	struct pxp_cmd_header header;
+	u32 rsvd;
+} __packed;
+
 #endif /* __INTEL_PXP_FW_INTERFACE_42_H__ */
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h
index c2f23394f9b8..69e34ec49e78 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h
@@ -27,6 +27,9 @@ struct pxp_cmd_header {
 	union {
 		u32 status; /* out */
 		u32 stream_id; /* in */
+#define PXP_CMDHDR_EXTDATA_SESSION_VALID GENMASK(0, 0)
+#define PXP_CMDHDR_EXTDATA_APP_TYPE GENMASK(1, 1)
+#define PXP_CMDHDR_EXTDATA_SESSION_ID GENMASK(17, 2)
 	};
 	/* Length of the message (excluding the header) */
 	u32 buffer_len;
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
index 85572360c71a..8eb886d3f2a0 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
@@ -91,10 +91,13 @@ static int pxp_terminate_arb_session_and_global(struct intel_pxp *pxp)
 {
 	int ret;
 	struct intel_gt *gt = pxp_to_gt(pxp);
+	u32 active_sip_slots;
 
 	/* must mark termination in progress calling this function */
 	GEM_WARN_ON(pxp->arb_is_valid);
 
+	active_sip_slots = intel_uncore_read(gt->uncore, GEN12_KCR_SIP);
+
 	/* terminate the hw sessions */
 	ret = intel_pxp_terminate_session(pxp, ARB_SESSION);
 	if (ret) {
@@ -110,6 +113,8 @@ static int pxp_terminate_arb_session_and_global(struct intel_pxp *pxp)
 
 	intel_uncore_write(gt->uncore, PXP_GLOBAL_TERMINATE, 1);
 
+	intel_pxp_tee_end_arb_fw_session(pxp, ARB_SESSION);
+
 	return ret;
 }
 
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
index b0c9170b1395..202ea01cbb88 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
@@ -309,3 +309,38 @@ int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp,
 
 	return ret;
 }
+
+void intel_pxp_tee_end_arb_fw_session(struct intel_pxp *pxp, u32 session_id)
+{
+	struct drm_i915_private *i915 = pxp_to_gt(pxp)->i915;
+	struct pxp42_inv_stream_key_in msg_in = {0};
+	struct pxp42_inv_stream_key_out msg_out = {0};
+	int ret, trials = 0;
+
+try_again:
+	memset(&msg_in, 0, sizeof(msg_in));
+	memset(&msg_out, 0, sizeof(msg_out));
+	msg_in.header.api_version = PXP_APIVER(4, 2);
+	msg_in.header.command_id = PXP42_CMDID_INVALIDATE_STREAM_KEY;
+	msg_in.header.buffer_len = sizeof(msg_in) - sizeof(msg_in.header);
+
+	msg_in.header.stream_id = FIELD_PREP(PXP_CMDHDR_EXTDATA_SESSION_VALID, 1);
+	msg_in.header.stream_id |= FIELD_PREP(PXP_CMDHDR_EXTDATA_APP_TYPE, 0);
+	msg_in.header.stream_id |= FIELD_PREP(PXP_CMDHDR_EXTDATA_SESSION_ID, session_id);
+
+	ret = intel_pxp_tee_io_message(pxp,
+				       &msg_in, sizeof(msg_in),
+				       &msg_out, sizeof(msg_out),
+				       NULL);
+
+	/* Cleanup coherency between GT and Firmware is critical, so try again if it fails */
+	if ((ret || msg_out.header.status != 0x0) && ++trials < 3)
+		goto try_again;
+
+	if (ret)
+		drm_err(&i915->drm, "Failed to send tee msg for inv-stream-key-%d, ret=[%d]\n",
+			session_id, ret);
+	else if (msg_out.header.status != 0x0)
+		drm_warn(&i915->drm, "PXP firmware failed inv-stream-key-%d with status 0x%08x\n",
+			 session_id, msg_out.header.status);
+}
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h
index f74b1e11a505..4d75b06ea4a0 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h
@@ -14,6 +14,8 @@
 struct intel_context;
 struct i915_pxp_component;
 
+#define INTEL_PXP_MAX_HWDRM_SESSIONS 16
+
 /**
  * struct intel_pxp - pxp state
  */
