diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c
index 40af17ec6312..be0dd8534993 100644
--- a/drivers/gpu/drm/i915/gvt/cfg_space.c
+++ b/drivers/gpu/drm/i915/gvt/cfg_space.c
@@ -110,13 +110,25 @@ int intel_vgpu_emulate_cfg_read(struct intel_vgpu *vgpu, unsigned int offset,
 
 static int map_aperture(struct intel_vgpu *vgpu, bool map)
 {
-	u64 first_gfn, first_mfn;
+	phys_addr_t aperture_pa = vgpu_aperture_pa_base(vgpu);
+	unsigned long aperture_sz = vgpu_aperture_sz(vgpu);
+	u64 first_gfn;
 	u64 val;
 	int ret;
 
 	if (map == vgpu->cfg_space.bar[INTEL_GVT_PCI_BAR_APERTURE].tracked)
 		return 0;
 
+	if (map) {
+		vgpu->gm.aperture_va = memremap(aperture_pa, aperture_sz,
+						MEMREMAP_WC);
+		if (!vgpu->gm.aperture_va)
+			return -ENOMEM;
+	} else {
+		memunmap(vgpu->gm.aperture_va);
+		vgpu->gm.aperture_va = NULL;
+	}
+
 	val = vgpu_cfg_space(vgpu)[PCI_BASE_ADDRESS_2];
 	if (val & PCI_BASE_ADDRESS_MEM_TYPE_64)
 		val = *(u64 *)(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_2);
@@ -124,14 +136,16 @@ static int map_aperture(struct intel_vgpu *vgpu, bool map)
 		val = *(u32 *)(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_2);
 
 	first_gfn = (val + vgpu_aperture_offset(vgpu)) >> PAGE_SHIFT;
-	first_mfn = vgpu_aperture_pa_base(vgpu) >> PAGE_SHIFT;
 
 	ret = intel_gvt_hypervisor_map_gfn_to_mfn(vgpu, first_gfn,
-						  first_mfn,
-						  vgpu_aperture_sz(vgpu) >>
-						  PAGE_SHIFT, map);
-	if (ret)
+						  aperture_pa >> PAGE_SHIFT,
+						  aperture_sz >> PAGE_SHIFT,
+						  map);
+	if (ret) {
+		memunmap(vgpu->gm.aperture_va);
+		vgpu->gm.aperture_va = NULL;
 		return ret;
+	}
 
 	vgpu->cfg_space.bar[INTEL_GVT_PCI_BAR_APERTURE].tracked = map;
 	return 0;
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 44b719eda8c4..2fe22e1b517c 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -80,6 +80,7 @@ struct intel_gvt_device_info {
 struct intel_vgpu_gm {
 	u64 aperture_sz;
 	u64 hidden_sz;
+	void *aperture_va;
 	struct drm_mm_node low_gm_node;
 	struct drm_mm_node high_gm_node;
 };
@@ -474,6 +475,13 @@ int intel_vgpu_emulate_cfg_read(struct intel_vgpu *vgpu, unsigned int offset,
 int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
 		void *p_data, unsigned int bytes);
 
+static inline u64 intel_vgpu_get_bar_gpa(struct intel_vgpu *vgpu, int bar)
+{
+	/* We are 64bit bar. */
+	return (*(u64 *)(vgpu->cfg_space.virtual_cfg_space + bar)) &
+			PCI_BASE_ADDRESS_MEM_MASK;
+}
+
 void intel_gvt_clean_opregion(struct intel_gvt *gvt);
 int intel_gvt_init_opregion(struct intel_gvt *gvt);
 
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 9201db0892f1..ae65268efce3 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -609,21 +609,20 @@ static void intel_vgpu_release_work(struct work_struct *work)
 	__intel_vgpu_release(vgpu);
 }
 
-static uint64_t intel_vgpu_get_bar0_addr(struct intel_vgpu *vgpu)
+static uint64_t intel_vgpu_get_bar_addr(struct intel_vgpu *vgpu, int bar)
 {
 	u32 start_lo, start_hi;
 	u32 mem_type;
-	int pos = PCI_BASE_ADDRESS_0;
 
-	start_lo = (*(u32 *)(vgpu->cfg_space.virtual_cfg_space + pos)) &
+	start_lo = (*(u32 *)(vgpu->cfg_space.virtual_cfg_space + bar)) &
 			PCI_BASE_ADDRESS_MEM_MASK;
-	mem_type = (*(u32 *)(vgpu->cfg_space.virtual_cfg_space + pos)) &
+	mem_type = (*(u32 *)(vgpu->cfg_space.virtual_cfg_space + bar)) &
 			PCI_BASE_ADDRESS_MEM_TYPE_MASK;
 
 	switch (mem_type) {
 	case PCI_BASE_ADDRESS_MEM_TYPE_64:
 		start_hi = (*(u32 *)(vgpu->cfg_space.virtual_cfg_space
-						+ pos + 4));
+						+ bar + 4));
 		break;
 	case PCI_BASE_ADDRESS_MEM_TYPE_32:
 	case PCI_BASE_ADDRESS_MEM_TYPE_1M:
@@ -637,6 +636,21 @@ static uint64_t intel_vgpu_get_bar0_addr(struct intel_vgpu *vgpu)
 	return ((u64)start_hi << 32) | start_lo;
 }
 
+static int intel_vgpu_bar_rw(struct intel_vgpu *vgpu, int bar, uint64_t off,
+			     void *buf, unsigned int count, bool is_write)
+{
+	uint64_t bar_start = intel_vgpu_get_bar_addr(vgpu, bar);
+	int ret;
+
+	if (is_write)
+		ret = intel_gvt_ops->emulate_mmio_write(vgpu,
+					bar_start + off, buf, count);
+	else
+		ret = intel_gvt_ops->emulate_mmio_read(vgpu,
+					bar_start + off, buf, count);
+	return ret;
+}
+
 static ssize_t intel_vgpu_rw(struct mdev_device *mdev, char *buf,
 			size_t count, loff_t *ppos, bool is_write)
 {
@@ -661,20 +675,14 @@ static ssize_t intel_vgpu_rw(struct mdev_device *mdev, char *buf,
 						buf, count);
 		break;
 	case VFIO_PCI_BAR0_REGION_INDEX:
-		if (is_write) {
-			uint64_t bar0_start = intel_vgpu_get_bar0_addr(vgpu);
-
-			ret = intel_gvt_ops->emulate_mmio_write(vgpu,
-						bar0_start + pos, buf, count);
-		} else {
-			uint64_t bar0_start = intel_vgpu_get_bar0_addr(vgpu);
-
-			ret = intel_gvt_ops->emulate_mmio_read(vgpu,
-						bar0_start + pos, buf, count);
-		}
+		ret = intel_vgpu_bar_rw(vgpu, PCI_BASE_ADDRESS_0, pos,
+					buf, count, is_write);
+		break;
+	case VFIO_PCI_BAR2_REGION_INDEX:
+		ret = intel_vgpu_bar_rw(vgpu, PCI_BASE_ADDRESS_2, pos,
+					buf, count, is_write);
 		break;
 	case VFIO_PCI_BAR1_REGION_INDEX:
-	case VFIO_PCI_BAR2_REGION_INDEX:
 	case VFIO_PCI_BAR3_REGION_INDEX:
 	case VFIO_PCI_BAR4_REGION_INDEX:
 	case VFIO_PCI_BAR5_REGION_INDEX:
diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c
index 980ec8906b1e..1e1310f50289 100644
--- a/drivers/gpu/drm/i915/gvt/mmio.c
+++ b/drivers/gpu/drm/i915/gvt/mmio.c
@@ -45,8 +45,7 @@
  */
 int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa)
 {
-	u64 gttmmio_gpa = *(u64 *)(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_0) &
-			  ~GENMASK(3, 0);
+	u64 gttmmio_gpa = intel_vgpu_get_bar_gpa(vgpu, PCI_BASE_ADDRESS_0);
 	return gpa - gttmmio_gpa;
 }
 
@@ -57,6 +56,38 @@ int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa)
 	(reg >= gvt->device_info.gtt_start_offset \
 	 && reg < gvt->device_info.gtt_start_offset + gvt_ggtt_sz(gvt))
 
+static bool vgpu_gpa_is_aperture(struct intel_vgpu *vgpu, uint64_t gpa)
+{
+	u64 aperture_gpa = intel_vgpu_get_bar_gpa(vgpu, PCI_BASE_ADDRESS_2);
+	u64 aperture_sz = vgpu_aperture_sz(vgpu);
+
+	return gpa >= aperture_gpa && gpa < aperture_gpa + aperture_sz;
+}
+
+static int vgpu_aperture_rw(struct intel_vgpu *vgpu, uint64_t gpa,
+			    void *pdata, unsigned int size, bool is_read)
+{
+	u64 aperture_gpa = intel_vgpu_get_bar_gpa(vgpu, PCI_BASE_ADDRESS_2);
+	u64 offset = gpa - aperture_gpa;
+
+	if (!vgpu_gpa_is_aperture(vgpu, gpa + size - 1)) {
+		gvt_vgpu_err("Aperture rw out of range, offset %llx, size %d\n",
+			     offset, size);
+		return -EINVAL;
+	}
+
+	if (!vgpu->gm.aperture_va) {
+		gvt_vgpu_err("BAR is not enabled\n");
+		return -ENXIO;
+	}
+
+	if (is_read)
+		memcpy(pdata, vgpu->gm.aperture_va + offset, size);
+	else
+		memcpy(vgpu->gm.aperture_va + offset, pdata, size);
+	return 0;
+}
+
 static void failsafe_emulate_mmio_rw(struct intel_vgpu *vgpu, uint64_t pa,
 		void *p_data, unsigned int bytes, bool read)
 {
@@ -133,6 +164,12 @@ int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, uint64_t pa,
 	}
 	mutex_lock(&gvt->lock);
 
+	if (vgpu_gpa_is_aperture(vgpu, pa)) {
+		ret = vgpu_aperture_rw(vgpu, pa, p_data, bytes, true);
+		mutex_unlock(&gvt->lock);
+		return ret;
+	}
+
 	if (atomic_read(&vgpu->gtt.n_write_protected_guest_page)) {
 		struct intel_vgpu_guest_page *gp;
 
@@ -224,6 +261,12 @@ int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa,
 
 	mutex_lock(&gvt->lock);
 
+	if (vgpu_gpa_is_aperture(vgpu, pa)) {
+		ret = vgpu_aperture_rw(vgpu, pa, p_data, bytes, false);
+		mutex_unlock(&gvt->lock);
+		return ret;
+	}
+
 	if (atomic_read(&vgpu->gtt.n_write_protected_guest_page)) {
 		struct intel_vgpu_guest_page *gp;