diff --git a/drivers/interrupt_controller/Kconfig.intel_vtd b/drivers/interrupt_controller/Kconfig.intel_vtd
index b8465032e29..a60941d85c2 100644
--- a/drivers/interrupt_controller/Kconfig.intel_vtd
+++ b/drivers/interrupt_controller/Kconfig.intel_vtd
@@ -7,6 +7,7 @@ menuconfig INTEL_VTD_ICTL
 	bool "Intel VT-D interrupt remapping controller"
 	depends on ACPI && X86 && 64BIT
 	select PCIE_MSI_MULTI_VECTOR
+	select CACHE_MANAGEMENT
 	help
 	  Such interrupt remapping hardware is provided through Intel VT-D
 	  technology. It's being used, currently, only for MSI/MSI-X
diff --git a/drivers/interrupt_controller/intc_intel_vtd.c b/drivers/interrupt_controller/intc_intel_vtd.c
index 61303f9178f..352a1c3944a 100644
--- a/drivers/interrupt_controller/intc_intel_vtd.c
+++ b/drivers/interrupt_controller/intc_intel_vtd.c
@@ -17,6 +17,8 @@
 
 #include <zephyr.h>
 
+#include <cache.h>
+
 #include <arch/x86/intel_vtd.h>
 #include <drivers/interrupt_controller/intel_vtd.h>
 #include <drivers/interrupt_controller/ioapic.h>
@@ -74,6 +76,17 @@ static void vtd_send_cmd(const struct device *dev,
 	}
 }
 
+static void vtd_flush_irte_from_cache(const struct device *dev,
+				      uint8_t irte_idx)
+{
+	struct vtd_ictl_data *data = dev->data;
+
+	if (!data->pwc) {
+		sys_cache_data_range(&data->irte[irte_idx],
+				     sizeof(struct vtd_irte), K_CACHE_WB);
+	}
+}
+
 static void vtd_qi_init(const struct device *dev)
 {
 	struct vtd_ictl_data *data = dev->data;
@@ -328,6 +341,8 @@ static int vtd_ictl_remap(const struct device *dev,
 
 	vtd_index_iec_invalidate(dev, irte_idx);
 
+	vtd_flush_irte_from_cache(dev, irte_idx);
+
 	return 0;
 }
 
@@ -417,6 +432,11 @@ static int vtd_ictl_init(const struct device *dev)
 
 	DEVICE_MMIO_MAP(dev, K_MEM_CACHE_NONE);
 
+	if (vtd_read_reg64(dev, VTD_ECAP_REG) & VTD_ECAP_C) {
+		printk("Page walk coherency supported\n");
+		data->pwc = true;
+	}
+
 	vtd_fault_event_init(dev);
 
 	vtd_qi_init(dev);
diff --git a/drivers/interrupt_controller/intc_intel_vtd.h b/drivers/interrupt_controller/intc_intel_vtd.h
index c11baacb6dd..eda4f60de67 100644
--- a/drivers/interrupt_controller/intc_intel_vtd.h
+++ b/drivers/interrupt_controller/intc_intel_vtd.h
@@ -114,6 +114,7 @@ struct vtd_ictl_data {
 	uint16_t fault_record_num;
 	uint16_t qi_tail;
 	uint8_t fault_vector;
+	bool pwc;
 };
 
 struct vtd_ictl_cfg {
diff --git a/include/arch/x86/intel_vtd.h b/include/arch/x86/intel_vtd.h
index 78ef29097e6..cc1ae0c7800 100644
--- a/include/arch/x86/intel_vtd.h
+++ b/include/arch/x86/intel_vtd.h
@@ -96,6 +96,9 @@
 #define VTD_CAP_FRO(cap)					\
 	(((uint64_t)cap & VTD_CAP_FRO_MASK) >> VTD_CAP_FRO_POS)
 
+/* Extended Capability Register details */
+#define VTD_ECAP_C		BIT(0)
+
 /* Global Command Register details */
 #define VTD_GCMD_CFI		23
 #define VTD_GCMD_SIRTP		24