feat: Updated cluster-up/check.sh for s390x special checks

On an IBM Z system (s390x), huge-page backing storage and nested virtualization cannot be used at the same time. Ref: https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/configuring_and_managing_virtualization/creating-nested-virtual-machines_configuring-and-managing-virtualization Signed-off-by: chandramerla <[email protected]>
kubevirt · Sep 8, 2024 · bff1c08 · bff1c08
1 parent d88d35e
commit bff1c08
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/cluster-up/check.sh b/cluster-up/check.sh
@@ -26,12 +26,17 @@ fi
 
 KVM_ARCH=""
 KVM_NESTED="unknown"
+KVM_HPAGE="unknown"
 if [ -f "/sys/module/kvm_intel/parameters/nested" ]; then
 	KVM_NESTED=$( cat /sys/module/kvm_intel/parameters/nested )
 	KVM_ARCH="intel"
 elif [ -f "/sys/module/kvm_amd/parameters/nested" ]; then
 	KVM_NESTED=$( cat /sys/module/kvm_amd/parameters/nested )
 	KVM_ARCH="amd"
+elif [ -f "/sys/module/kvm/parameters/nested" ]; then
+    KVM_NESTED=$( cat /sys/module/kvm/parameters/nested )
+	KVM_ARCH="s390x"
+	KVM_HPAGE=$( cat /sys/module/kvm/parameters/hpage )
 fi
 
 function is_enabled() {
@@ -49,3 +54,7 @@ if is_enabled "$KVM_NESTED"; then
 else
 	echo "[ERR ] $KVM_ARCH nested virtualization not enabled"
 fi
+
+if is_enabled "$KVM_HPAGE" && [ "$(uname -m)" = "s390x" ]; then
+	echo "[ERR ] $KVM_HPAGE KVM hugepage enabled. It need to be disabled while nested virtualization is enabled for s390x"
+fi