diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1d519e9..2b35ff8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -144,6 +144,35 @@ jobs:
             git+https://github.com/antmicro/tuttest.git@c44309e0365c54759fb36864fb77bf8b347bd647
           repos: https://github.com/antmicro/pyrav4l2.git pyrav4l2
 
+  riscv64-shared-dirs-test:
+    runs-on: ubuntu-latest
+    needs: send-to-releases
+    if: ${{ !failure() && !github.event.act }}
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: prepare shared dirs
+        run: |
+          mkdir shared_dir shared_dir2
+
+      - name: test
+        uses: ./
+        with:
+          rootfs-size: +128M
+          shared-dirs: |
+            shared_dir /home/shared_dir
+            shared_dir2 /home/shared_dir2
+          renode-run: |
+            echo "shared-dirs-test" > shared_dir/f.txt
+            echo "shared-dirs-test2" > shared_dir2/f.txt
+
+      - name: read shared_dirs
+        run: |
+          ls shared_dir
+          cat shared_dir/f.txt
+          ls shared_dir2
+          cat shared_dir2/f.txt
+
   arm32-test:
     runs-on: ubuntu-latest
     needs: send-to-releases
diff --git a/action/device/hifive_unleashed/init.resc b/action/device/hifive_unleashed/init.resc
index 94a77cf..6747eba 100644
--- a/action/device/hifive_unleashed/init.resc
+++ b/action/device/hifive_unleashed/init.resc
@@ -6,7 +6,10 @@ machine LoadPlatformDescription @action/device/hifive_unleashed/platform.repl
 
 # rootfs
 machine LoadPlatformDescriptionFromString 'virtio: Storage.VirtIOBlockDevice @ sysbus 0x100d0000 { IRQ -> plic@50 }'
-virtio LoadImage @images/rootfs.img
+virtio LoadImage @images/rootfs.img true
+
+# machine LoadPlatformDescriptionFromString 'virtio2: Storage.VirtIOBlockDevice @ sysbus 0x100e0000 { IRQ -> plic@51 }'
+# virtio2 LoadImage @images/persistent.img true
 
 showAnalyzer uart0
 e51 LogFunctionNames true
diff --git a/action/images.py b/action/images.py
index 85a3faa..945f83c 100644
--- a/action/images.py
+++ b/action/images.py
@@ -104,6 +104,35 @@ def prepare_kernel_and_initramfs(kernel: str):
     if not os.path.exists("images/Image") and not os.path.exists("images/vmlinux"):
         error("Kernel not found! Action expects Image or vmlinux file.")
 
+def rootfs_size(size_str: str) -> int:
+    """
+    Returns rootfs size 
+
+    Parameters
+    ----------
+    size_str: str
+        rootfs-size action parameter value
+    """
+
+    units = {
+        "B": 1,
+        "K": 1024,
+        "M": 1024**2,
+        "G": 1024**3
+    }
+
+    if size_str == "auto" or size_str.startswith("+"):
+        size = 0
+        for path, _, files in os.walk("images/rootfs"):
+            for f in files:
+                fp = os.path.join(path, f)
+                if not os.path.islink(fp):
+                    size += os.path.getsize(fp)
+
+        additional_size = int(size_str[:-1]) * units[size_str[-1]] if size_str.startswith("+") and size_str[-1] in units else 0
+        print(f"additional_size: {additional_size}")
+        return max(size * 2, 5 * 10**7) + additional_size
+    return int(size_str)
 
 def burn_rootfs_image(
         user_directory: str,
@@ -185,20 +214,14 @@ def burn_rootfs_image(
             dirs_exist_ok=True
         )
 
-    if image_size == "auto":
-        size = 0
-        for path, _, files in os.walk("images/rootfs"):
-            for f in files:
-                fp = os.path.join(path, f)
-                if not os.path.islink(fp):
-                    size += os.path.getsize(fp)
-
-        image_size = f'{max(size * 2, 5 * 10**7)}'
     try:
-
-        run(["truncate", "images/rootfs.img", "-s", image_size], check=True)
+        run(["truncate", "images/rootfs.img", "-s", f"{rootfs_size(image_size)}"], check=True)
         run(["mkfs.ext4", "-d", "images/rootfs", "images/rootfs.img"],
             check=True,
             stdout=DEVNULL)
+        # run(["truncate", "images/persistent.img", "-s", "128MB"], check=True)
+        # run(["mkfs.ext4", "images/persistent.img"],
+        #     check=True,
+        #     stdout=DEVNULL)
     except CalledProcessError as e:
         sys.exit(e.returncode)
diff --git a/action/run-in-renode.py b/action/run-in-renode.py
index b0e0a8d..47f9eb1 100644
--- a/action/run-in-renode.py
+++ b/action/run-in-renode.py
@@ -16,14 +16,17 @@
 from common import get_file, error, archs
 from devices import add_devices
 from dependencies import add_repos, add_packages
-from images import prepare_shared_directories, prepare_kernel_and_initramfs, burn_rootfs_image
+from images import prepare_shared_directories, prepare_kernel_and_initramfs, burn_rootfs_image, shared_directories_actions
 from dispatcher import CommandDispatcher
+from subprocess import run
 
 from datetime import datetime
 
 import sys
 import json
 import yaml
+import shutil
+import os
 
 
 DEFAULT_IMAGE_PATH = "https://github.com/{}/releases/download/{}/image-{}-default.tar.xz"
@@ -146,3 +149,14 @@ def test_task(test_task_str: str):
     dispatcher.add_task(test_task(args.get("renode-run", "")))
 
     dispatcher.evaluate()
+
+    # run(["mkdir", "shared"], check=True)
+    # run(["sudo", "mount", "images/persistent.img", "shared"], check=True)
+    run(["mkdir", "rootfs"], check=True)
+    run(["sudo", "mount", "images/rootfs.img", "rootfs"], check=True)
+
+    for dir in shared_directories_actions:
+        src = f"rootfs/{dir.target}"
+        dst = f"{user_directory}/{dir.host}" if not dir.host.startswith('/') else dir.host
+        if os.path.exists(src):
+            shutil.copytree(src, dst, dirs_exist_ok=True)
diff --git a/action/tasks/save_shared_dirs.yml b/action/tasks/save_shared_dirs.yml
new file mode 100644
index 0000000..8bb122a
--- /dev/null
+++ b/action/tasks/save_shared_dirs.yml
@@ -0,0 +1,18 @@
+name: save_shared_dirs
+shell: target
+requires: [action_test]
+echo: true
+timeout: 5
+fail-fast: false
+check-exit-code: false
+commands:
+  # - echo "TEST"
+  # - mkdir -p host_dir
+  # - mount /dev/vdb host_dir
+  # - ls host_dir
+  # - echo "file from Renode" > host_dir/test.txt
+  # - umount host_dir
+  # - pwd
+  # - echo "second file" > test.txt
+  # - ls
+  - umount /dev/vda
\ No newline at end of file
diff --git a/kernel/riscv64-hifive_unleashed/patches/linux/0001-linux-dts-patches.patch b/kernel/riscv64-hifive_unleashed/patches/linux/0001-linux-dts-patches.patch
index d151de9..f63e979 100644
--- a/kernel/riscv64-hifive_unleashed/patches/linux/0001-linux-dts-patches.patch
+++ b/kernel/riscv64-hifive_unleashed/patches/linux/0001-linux-dts-patches.patch
@@ -15,7 +15,7 @@ diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/bo
 index dddabfbbc7a9..15e528335102 100644
 --- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
 +++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
-@@ -29,6 +29,12 @@ memory@80000000 {
+@@ -29,6 +29,18 @@ memory@80000000 {
  	};
  
  	soc {
@@ -24,6 +24,12 @@ index dddabfbbc7a9..15e528335102 100644
 +        	reg = <0x00 0x100d0000 0x00 0x150>;
 +        	interrupt-parent = <&plic0>;
 +        	interrupts = <50>;
++    	};
++		virtio@100e0000 {
++        	compatible = "virtio,mmio";
++        	reg = <0x00 0x100e0000 0x00 0x150>;
++        	interrupt-parent = <&plic0>;
++        	interrupts = <51>; 
 +    	};
  	};