1 files changed, 37 insertions, 0 deletions
diff --git a/pcr/xen/xen-ucode-extract.sh b/pcr/xen/xen-ucode-extract.sh
new file mode 100644
index 000000000..7f8379d67
--- /dev/null
+++ b/pcr/xen/xen-ucode-extract.sh
@@ -0,0 +1,37 @@
+#!/bin/bash -e
+
+
+do_firmware() {
+
+	if [ "$1" == "intel" ]; then
+		UCODE_RD="/boot/intel-ucode.img"
+		XEN_EFI_UCODE="/boot/xen-efi-intel-ucode.bin"
+		UCODE_ORIG_BIN="kernel/x86/microcode/GenuineIntel.bin"
+	elif [ "$1" == "amd" ]; then
+		UCODE_RD="/boot/amd-ucode.img"
+		XEN_EFI_UCODE="/boot/xen-efi-amd-ucode.bin"
+		UCODE_ORIG_BIN="kernel/x86/microcode/AuthenticAMD.bin"
+	fi
+
+	# remove old file
+	if [ -f $XEN_EFI_UCODE ]; then
+		rm $XEN_EFI_UCODE
+	fi
+
+	# create new file
+	if [ -f $UCODE_RD ]; then
+		bsdtar -Oxf $UCODE_RD $UCODE_ORIG_BIN > $XEN_EFI_UCODE || exit 1
+	fi
+
+
+}
+
+if [ -f "/boot/intel-ucode.img" ]; then
+	do_firmware "intel"
+fi
+
+if [ -f "/boot/amd-ucode.img" ]; then
+	do_firmware "amd"
+fi
+
+exit 0