diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index 8e9b551c70332b63125eacff7643d26e447bf8a3..ad70a1bdd4769b002a427f96e68f3de41876cdae 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -6,6 +6,7 @@
 #include "xe_device.h"
 
 #include <linux/delay.h>
+#include <linux/fault-inject.h>
 #include <linux/units.h>
 
 #include <drm/drm_aperture.h>
@@ -382,6 +383,7 @@ struct xe_device *xe_device_create(struct pci_dev *pdev,
 err:
 	return ERR_PTR(err);
 }
+ALLOW_ERROR_INJECTION(xe_device_create, ERRNO); /* See xe_pci_probe() */
 
 static bool xe_driver_flr_disabled(struct xe_device *xe)
 {
@@ -550,6 +552,7 @@ static int wait_for_lmem_ready(struct xe_device *xe)
 
 	return 0;
 }
+ALLOW_ERROR_INJECTION(wait_for_lmem_ready, ERRNO); /* See xe_pci_probe() */
 
 static void update_device_info(struct xe_device *xe)
 {
diff --git a/drivers/gpu/drm/xe/xe_ggtt.c b/drivers/gpu/drm/xe/xe_ggtt.c
index f68af56c3f86576900421f0590ba70348297dcac..47bfd9d2635d0bcd6f9115e9cd715ed7caf8033c 100644
--- a/drivers/gpu/drm/xe/xe_ggtt.c
+++ b/drivers/gpu/drm/xe/xe_ggtt.c
@@ -5,6 +5,7 @@
 
 #include "xe_ggtt.h"
 
+#include <linux/fault-inject.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
 #include <linux/sizes.h>
 
@@ -264,6 +265,7 @@ int xe_ggtt_init_early(struct xe_ggtt *ggtt)
 
 	return 0;
 }
+ALLOW_ERROR_INJECTION(xe_ggtt_init_early, ERRNO); /* See xe_pci_probe() */
 
 static void xe_ggtt_invalidate(struct xe_ggtt *ggtt);
 
diff --git a/drivers/gpu/drm/xe/xe_guc_ads.c b/drivers/gpu/drm/xe/xe_guc_ads.c
index 66d4e5e95abd0b9e5d09400fe11658733c21bd36..04485461aa20f4fd0710d3c6803c25518259bd47 100644
--- a/drivers/gpu/drm/xe/xe_guc_ads.c
+++ b/drivers/gpu/drm/xe/xe_guc_ads.c
@@ -5,6 +5,8 @@
 
 #include "xe_guc_ads.h"
 
+#include <linux/fault-inject.h>
+
 #include <drm/drm_managed.h>
 
 #include <generated/xe_wa_oob.h>
@@ -418,6 +420,7 @@ int xe_guc_ads_init(struct xe_guc_ads *ads)
 
 	return 0;
 }
+ALLOW_ERROR_INJECTION(xe_guc_ads_init, ERRNO); /* See xe_pci_probe() */
 
 /**
  * xe_guc_ads_init_post_hwconfig - initialize ADS post hwconfig load
diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c
index 3fd1d4e97528b6ec431b84c984bb6675a802ab0c..5aef2be2d027a04ffc36bb3b016d9b4483de0b2e 100644
--- a/drivers/gpu/drm/xe/xe_guc_ct.c
+++ b/drivers/gpu/drm/xe/xe_guc_ct.c
@@ -8,6 +8,7 @@
 #include <linux/bitfield.h>
 #include <linux/circ_buf.h>
 #include <linux/delay.h>
+#include <linux/fault-inject.h>
 
 #include <kunit/static_stub.h>
 
@@ -209,6 +210,7 @@ int xe_guc_ct_init(struct xe_guc_ct *ct)
 	ct->state = XE_GUC_CT_STATE_DISABLED;
 	return 0;
 }
+ALLOW_ERROR_INJECTION(xe_guc_ct_init, ERRNO); /* See xe_pci_probe() */
 
 #define desc_read(xe_, guc_ctb__, field_)			\
 	xe_map_rd_field(xe_, &guc_ctb__->desc, 0,		\
diff --git a/drivers/gpu/drm/xe/xe_guc_log.c b/drivers/gpu/drm/xe/xe_guc_log.c
index a37ee341942844aeaf8dcb695d092e1af597f79c..651543721ce5297d92932fea7e48f211d95fd38d 100644
--- a/drivers/gpu/drm/xe/xe_guc_log.c
+++ b/drivers/gpu/drm/xe/xe_guc_log.c
@@ -5,6 +5,8 @@
 
 #include "xe_guc_log.h"
 
+#include <linux/fault-inject.h>
+
 #include <drm/drm_managed.h>
 
 #include "xe_bo.h"
@@ -96,3 +98,4 @@ int xe_guc_log_init(struct xe_guc_log *log)
 
 	return 0;
 }
+ALLOW_ERROR_INJECTION(xe_guc_log_init, ERRNO); /* See xe_pci_probe() */
diff --git a/drivers/gpu/drm/xe/xe_guc_relay.c b/drivers/gpu/drm/xe/xe_guc_relay.c
index ade6162dc2598713a1fee0d0f989b02fab3a8fe9..8f62de026724ccfc81f71572f1bbe1f7f1ccb83e 100644
--- a/drivers/gpu/drm/xe/xe_guc_relay.c
+++ b/drivers/gpu/drm/xe/xe_guc_relay.c
@@ -5,6 +5,7 @@
 
 #include <linux/bitfield.h>
 #include <linux/delay.h>
+#include <linux/fault-inject.h>
 
 #include <drm/drm_managed.h>
 
@@ -355,6 +356,7 @@ int xe_guc_relay_init(struct xe_guc_relay *relay)
 
 	return drmm_add_action_or_reset(&xe->drm, __fini_relay, relay);
 }
+ALLOW_ERROR_INJECTION(xe_guc_relay_init, ERRNO); /* See xe_pci_probe() */
 
 static u32 to_relay_error(int err)
 {
diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
index edaeefd2d648e576c298d157a5f40a208e5b59f9..af7b2f2ff13ab70544a56975bb8948c588151a10 100644
--- a/drivers/gpu/drm/xe/xe_pci.c
+++ b/drivers/gpu/drm/xe/xe_pci.c
@@ -765,6 +765,25 @@ static void xe_pci_remove(struct pci_dev *pdev)
 	pci_set_drvdata(pdev, NULL);
 }
 
+/*
+ * Probe the PCI device, initialize various parts of the driver.
+ *
+ * Fault injection is used to test the error paths of some initialization
+ * functions called either directly from xe_pci_probe() or indirectly for
+ * example through xe_device_probe(). Those functions use the kernel fault
+ * injection capabilities infrastructure, see
+ * Documentation/fault-injection/fault-injection.rst for details. The macro
+ * ALLOW_ERROR_INJECTION() is used to conditionally skip function execution
+ * at runtime and use a provided return value. The first requirement for
+ * error injectable functions is proper handling of the error code by the
+ * caller for recovery, which is always the case here. The second
+ * requirement is that no state is changed before the first error return.
+ * It is not strictly fullfilled for all initialization functions using the
+ * ALLOW_ERROR_INJECTION() macro but this is acceptable because for those
+ * error cases at probe time, the error code is simply propagated up by the
+ * caller. Therefore there is no consequence on those specific callers when
+ * function error injection skips the whole function.
+ */
 static int xe_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	const struct xe_device_desc *desc = (const void *)ent->driver_data;
diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c
index 33eb039053e4f5e71b82944b11237aedc338e664..40f7c844ed44ae4f9422766793a9e047058f2549 100644
--- a/drivers/gpu/drm/xe/xe_pm.c
+++ b/drivers/gpu/drm/xe/xe_pm.c
@@ -5,6 +5,7 @@
 
 #include "xe_pm.h"
 
+#include <linux/fault-inject.h>
 #include <linux/pm_runtime.h>
 
 #include <drm/drm_managed.h>
@@ -263,6 +264,7 @@ int xe_pm_init_early(struct xe_device *xe)
 
 	return 0;
 }
+ALLOW_ERROR_INJECTION(xe_pm_init_early, ERRNO); /* See xe_pci_probe() */
 
 /**
  * xe_pm_init - Initialize Xe Power Management
diff --git a/drivers/gpu/drm/xe/xe_sriov.c b/drivers/gpu/drm/xe/xe_sriov.c
index 69a066ef20c04c6acb044c090f3529845acdee53..ef10782af65603c85bc43ae0a63e58366c570419 100644
--- a/drivers/gpu/drm/xe/xe_sriov.c
+++ b/drivers/gpu/drm/xe/xe_sriov.c
@@ -3,6 +3,8 @@
  * Copyright © 2023 Intel Corporation
  */
 
+#include <linux/fault-inject.h>
+
 #include <drm/drm_managed.h>
 
 #include "regs/xe_regs.h"
@@ -119,6 +121,7 @@ int xe_sriov_init(struct xe_device *xe)
 
 	return drmm_add_action_or_reset(&xe->drm, fini_sriov, xe);
 }
+ALLOW_ERROR_INJECTION(xe_sriov_init, ERRNO); /* See xe_pci_probe() */
 
 /**
  * xe_sriov_print_info - Print basic SR-IOV information.
diff --git a/drivers/gpu/drm/xe/xe_tile.c b/drivers/gpu/drm/xe/xe_tile.c
index dda5268507d8e17c101190e60206145084e42cdc..07cf7cfe4abd5aaed0cb5741d972ba68f0b0a884 100644
--- a/drivers/gpu/drm/xe/xe_tile.c
+++ b/drivers/gpu/drm/xe/xe_tile.c
@@ -3,6 +3,8 @@
  * Copyright © 2023 Intel Corporation
  */
 
+#include <linux/fault-inject.h>
+
 #include <drm/drm_managed.h>
 
 #include "xe_device.h"
@@ -129,6 +131,7 @@ int xe_tile_init_early(struct xe_tile *tile, struct xe_device *xe, u8 id)
 
 	return 0;
 }
+ALLOW_ERROR_INJECTION(xe_tile_init_early, ERRNO); /* See xe_pci_probe() */
 
 static int tile_ttm_mgr_init(struct xe_tile *tile)
 {
diff --git a/drivers/gpu/drm/xe/xe_uc_fw.c b/drivers/gpu/drm/xe/xe_uc_fw.c
index d339f636f4d52fbde1e4aa9121d69760284810d4..fb0eda3d568290420e6a0af5777d263b342e1db6 100644
--- a/drivers/gpu/drm/xe/xe_uc_fw.c
+++ b/drivers/gpu/drm/xe/xe_uc_fw.c
@@ -4,6 +4,7 @@
  */
 
 #include <linux/bitfield.h>
+#include <linux/fault-inject.h>
 #include <linux/firmware.h>
 
 #include <drm/drm_managed.h>
@@ -796,6 +797,7 @@ int xe_uc_fw_init(struct xe_uc_fw *uc_fw)
 
 	return err;
 }
+ALLOW_ERROR_INJECTION(xe_uc_fw_init, ERRNO); /* See xe_pci_probe() */
 
 static u32 uc_fw_ggtt_offset(struct xe_uc_fw *uc_fw)
 {
diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
index 22c148b1e996907658de4dc3d92b27e34b2ecdf2..94ea76b098ed6301c7780c38607f8e7982c88a23 100644
--- a/drivers/gpu/drm/xe/xe_wa.c
+++ b/drivers/gpu/drm/xe/xe_wa.c
@@ -8,6 +8,7 @@
 #include <drm/drm_managed.h>
 #include <kunit/visibility.h>
 #include <linux/compiler_types.h>
+#include <linux/fault-inject.h>
 
 #include <generated/xe_wa_oob.h>
 
@@ -850,6 +851,7 @@ int xe_wa_init(struct xe_gt *gt)
 
 	return 0;
 }
+ALLOW_ERROR_INJECTION(xe_wa_init, ERRNO); /* See xe_pci_probe() */
 
 void xe_wa_dump(struct xe_gt *gt, struct drm_printer *p)
 {
diff --git a/drivers/gpu/drm/xe/xe_wopcm.c b/drivers/gpu/drm/xe/xe_wopcm.c
index 93c82825d8969a947cab60965eede6c907ddd786..ada0d0aa6b74941826f8698f808debc6c3292ca2 100644
--- a/drivers/gpu/drm/xe/xe_wopcm.c
+++ b/drivers/gpu/drm/xe/xe_wopcm.c
@@ -5,6 +5,8 @@
 
 #include "xe_wopcm.h"
 
+#include <linux/fault-inject.h>
+
 #include "regs/xe_guc_regs.h"
 #include "xe_device.h"
 #include "xe_force_wake.h"
@@ -268,3 +270,4 @@ check:
 
 	return ret;
 }
+ALLOW_ERROR_INJECTION(xe_wopcm_init, ERRNO); /* See xe_pci_probe() */