test/qemu: skip qemu test if 'old' qemu without PCR

3d01958 introduced clearing PCR on reinit cpus,
and until (the near future from now) qemu didn't support
this register.

Signed-off-by: Stewart Smith <stewart@linux.ibm.com>

test/run_qemu-jessie-debian-installer_boot_test.sh

@@ -45,6 +45,7 @@ timeout { send_user "\nTimeout waiting for petitboot\n"; exit 1 }
 eof { send_user "\nUnexpected EOF\n;" exit 1 }
 "Machine Check Stop" { exit 1;}
 "Kernel panic - not syncing" { exit 2;}
+"Trying to write privileged spr 338" { send_user "\nUpgrade Qemu: needs PCR register\n"; exit 3 }
 "Starting system log daemon"
 }
 close
@@ -54,6 +55,12 @@ EOF
 ) 2>&1 >> $T
 E=$?
 
+if [ $E -eq 3 ]; then
+    echo "WARNING: Qemu test not run; upgrade QEMU to one that supports PCR register";
+    rm $T $D
+    exit 0;
+fi
+
 if [ $E -eq 0 ]; then
     rm $T $D
 else

test/run_qemu_boot_test.sh

@@ -38,6 +38,7 @@ expect {
 timeout { send_user "\nTimeout waiting for petitboot\n"; exit 1 }
 eof { send_user "\nUnexpected EOF\n;" exit 1 }
 "Machine Check Stop" { exit 1; }
+"Trying to write privileged spr 338" { send_user "\nUpgrade Qemu: needs PCR register\n"; exit 3 }
 "Welcome to Petitboot"
 }
 close
@@ -47,6 +48,12 @@ EOF
 ) 2>&1 > $T
 E=$?
 
+if [ $E -eq 3 ]; then
+    echo "WARNING: Qemu test not run; upgrade QEMU to one that supports PCR register";
+    rm $T
+    exit 0;
+fi
+
 if [ $E -eq 0 ]; then
     rm $T
 else