diff --git a/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/misc_cfg.h b/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/misc_cfg.h
index 2083ab72a..f23b9bfe2 100644
--- a/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/misc_cfg.h
+++ b/misc/vm_configs/scenarios/hybrid_rt/ehl-crb-b/misc_cfg.h
@@ -84,9 +84,13 @@
#define VM0_CONFIG_PCI_DEV_NUM 4U
#define VM2_CONFIG_PCI_DEV_NUM 1U
-#define VM0_BOOT_ARGS "rw rootwait root=/dev/sda3 console=ttyS0 \
-noxsave nohpet no_timer_check ignore_loglevel \
-consoleblank=0 tsc=reliable reboot=acpi"
+#define VM0_BOOT_ARGS "rw rootwait root=/dev/sda3 no_ipi_broadcast=1 \
+console=ttyS0 noxsave nohpet no_timer_check \
+ignore_loglevel consoleblank=0 tsc=reliable clocksource=tsc \
+x2apic_phys processor.max_cstate=0 intel_idle.max_cstate=0 intel_pstate=disable \
+mce=ignore_ce audit=0 isolcpus=nohz,domain,1 nohz_full=1 \
+rcu_nocbs=1 nosoftlockup idle=poll irqaffinity=0 \
+reboot=acpi"
#define VM0_PT_INTX_NUM 0U
diff --git a/misc/vm_configs/xmls/config-xmls/ehl-crb-b/hybrid_rt.xml b/misc/vm_configs/xmls/config-xmls/ehl-crb-b/hybrid_rt.xml
index 0649d1857..0500d6e0b 100644
--- a/misc/vm_configs/xmls/config-xmls/ehl-crb-b/hybrid_rt.xml
+++ b/misc/vm_configs/xmls/config-xmls/ehl-crb-b/hybrid_rt.xml
@@ -97,7 +97,7 @@
KERNEL_BZIMAGE
RT_bzImage
- rw rootwait root=/dev/sda3 no_ipi_broadcast=1 console=ttyS0 noxsave nohpet no_timer_check ignore_loglevel consoleblank=0 tsc=reliable reboot=acpi
+ rw rootwait root=/dev/sda3 no_ipi_broadcast=1 console=ttyS0 noxsave nohpet no_timer_check ignore_loglevel consoleblank=0 tsc=reliable clocksource=tsc x2apic_phys processor.max_cstate=0 intel_idle.max_cstate=0 intel_pstate=disable mce=ignore_ce audit=0 isolcpus=nohz,domain,1 nohz_full=1 rcu_nocbs=1 nosoftlockup idle=poll irqaffinity=0 reboot=acpi
VUART_LEGACY_PIO