[kvm-unit-tests PATCH v3 07/16] scripts: Use an associative array for qemu argument names

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Move away from hardcoded qemu arguments and use instead an associative
array to get the needed arguments. This paves the way for adding kvmtool
support to the scripts, which has a different syntax for the same VM
configuration parameters.

Suggested-by: Andrew Jones <andrew.jones@xxxxxxxxx>
Signed-off-by: Alexandru Elisei <alexandru.elisei@xxxxxxx>
---
 scripts/common.bash  | 10 +++++++---
 scripts/runtime.bash |  7 +------
 scripts/vmm.bash     |  7 +++++++
 3 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/scripts/common.bash b/scripts/common.bash
index 9deb87d4050d..649f1c737617 100644
--- a/scripts/common.bash
+++ b/scripts/common.bash
@@ -1,4 +1,5 @@
 source config.mak
+source scripts/vmm.bash
 
 function for_each_unittest()
 {
@@ -26,8 +27,11 @@ function for_each_unittest()
 				$(arch_cmd) "$cmd" "$testname" "$groups" "$smp" "$kernel" "$test_args" "$opts" "$arch" "$machine" "$check" "$accel" "$timeout"
 			fi
 			testname=$rematch
-			smp=1
+			smp="${vmm_opts[$TARGET:nr_cpus]} 1"
 			kernel=""
+			# Intentionally don't use -append if test_args is empty
+			# because qemu interprets the first argument after
+			# -append as a kernel parameter.
 			test_args=""
 			opts=""
 			groups=""
@@ -39,9 +43,9 @@ function for_each_unittest()
 		elif [[ $line =~ ^file\ *=\ *(.*)$ ]]; then
 			kernel=$TEST_DIR/${BASH_REMATCH[1]}
 		elif [[ $line =~ ^smp\ *=\ *(.*)$ ]]; then
-			smp=${BASH_REMATCH[1]}
+			smp="${vmm_opts[$TARGET:nr_cpus]} ${BASH_REMATCH[1]}"
 		elif [[ $line =~ ^test_args\ *=\ *(.*)$ ]]; then
-			test_args=${BASH_REMATCH[1]}
+			test_args="${vmm_opts[$TARGET:args]} ${BASH_REMATCH[1]}"
 		elif [[ $line =~ ^(extra_params|qemu_params)\ *=\ *'"""'(.*)$ ]]; then
 			opts=${BASH_REMATCH[2]}$'\n'
 			while read -r -u $fd; do
diff --git a/scripts/runtime.bash b/scripts/runtime.bash
index 06cc58e79b69..86d8a2cd8528 100644
--- a/scripts/runtime.bash
+++ b/scripts/runtime.bash
@@ -34,7 +34,7 @@ premature_failure()
 get_cmdline()
 {
     local kernel=$1
-    echo "TESTNAME=$testname TIMEOUT=$timeout MACHINE=$machine ACCEL=$accel $RUNTIME_arch_run $kernel -smp $smp $opts"
+    echo "TESTNAME=$testname TIMEOUT=$timeout MACHINE=$machine ACCEL=$accel $RUNTIME_arch_run $kernel $smp $test_args $opts"
 }
 
 skip_nodefault()
@@ -88,11 +88,6 @@ function run()
     local accel="${10}"
     local timeout="${11:-$TIMEOUT}" # unittests.cfg overrides the default
 
-    # If $test_args is empty, qemu will interpret the first option after -append
-    # as a kernel parameter instead of a qemu option, so make sure the -append
-    # option is used only if $test_args is not empy.
-    [ -n "$test_args" ] && opts="-append $test_args $opts"
-
     if [ "${CONFIG_EFI}" == "y" ]; then
         kernel=${kernel/%.flat/.efi}
     fi
diff --git a/scripts/vmm.bash b/scripts/vmm.bash
index 39325858c6b3..b02055a5c0b6 100644
--- a/scripts/vmm.bash
+++ b/scripts/vmm.bash
@@ -1,5 +1,12 @@
 source config.mak
 
+declare -A vmm_opts=(
+	[qemu:nr_cpus]='-smp'
+	[qemu:kernel]='-kernel'
+	[qemu:args]='-append'
+	[qemu:initrd]='-initrd'
+)
+
 function check_vmm_supported()
 {
 	case "$TARGET" in
-- 
2.49.0





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