diff --git a/ci/microbit-v1.yml b/ci/microbit-v1.yml
index d78af2b2..b8501486 100644
--- a/ci/microbit-v1.yml
+++ b/ci/microbit-v1.yml
@@ -4,8 +4,4 @@ header:
     - ci/base.yml
     - ci/meta-zephyr.yml
 
-local_conf_header:
-  failing_tests: |
-    ZEPHYRTESTS:remove = "common"
-
 machine: microbit-v1
diff --git a/ci/qemu-cortex-m3.yml b/ci/qemu-cortex-m3.yml
index 8a96037c..6f892a9e 100644
--- a/ci/qemu-cortex-m3.yml
+++ b/ci/qemu-cortex-m3.yml
@@ -13,6 +13,8 @@ local_conf_header:
   tclibc: |
     TCLIBC = "newlib"
   nonbuilding_tests: |
-    ZEPHYRTESTS:remove = "context pending sleep"
+    ZEPHYRTESTS:remove = "context pending poll sleep"
+  qemu_opts: |
+    QB_OPT_APPEND = "-icount shift=3,align=off,sleep=on -rtc clock=vm"
 
 machine: qemu-cortex-m3
diff --git a/meta-arm/conf/machine/microbit-v1.conf b/meta-arm/conf/machine/microbit-v1.conf
index 6b18191e..ef3872fe 100644
--- a/meta-arm/conf/machine/microbit-v1.conf
+++ b/meta-arm/conf/machine/microbit-v1.conf
@@ -16,6 +16,7 @@ QB_MACHINE = "-machine microbit"
 QB_CPU = "-cpu cortex-m0"
 QB_GRAPHICS = "-nographic -vga none"
 QB_RNG = ""
+QB_OPT_APPEND = "-icount shift=6,align=off,sleep=on -rtc clock=vm"
 
 # Zephyr RTOS settings
 ZEPHYR_BOARD = "qemu_cortex_m0"