There are extra properties for accelerators to enable the specific
features. For example, the dirty ring for KVM accelerator can be
enabled by "-accel kvm,dirty-ring-size=65536". Unfortuntely, the
extra properties for the accelerators aren't supported. It makes
it's impossible to test the combination of KVM and dirty ring
as the following error message indicates.
# cd /home/gavin/sandbox/kvm-unit-tests/tests
# QEMU=/home/gavin/sandbox/qemu.main/build/qemu-system-aarch64 \
ACCEL=kvm,dirty-ring-size=65536 ./its-migration
:
BUILD_HEAD=2fffb37e
timeout -k 1s --foreground 90s /home/gavin/sandbox/qemu.main/build/qemu-system-aarch64 \
-nodefaults -machine virt -accel kvm,dirty-ring-size=65536 -cpu cortex-a57 \
-device virtio-serial-device -device virtconsole,chardev=ctd -chardev testdev,id=ctd \
-device pci-testdev -display none -serial stdio -kernel _NO_FILE_4Uhere_ -smp 160 \
-machine gic-version=3 -append its-pending-migration # -initrd /tmp/tmp.gfDLa1EtWk
qemu-system-aarch64: kvm_init_vcpu: kvm_arch_init_vcpu failed (0): Invalid argument
Allow to specify extra properties for accelerators. With this, the
"its-migration" can be tested for the combination of KVM and dirty
ring.
Signed-off-by: Gavin Shan <gshan@xxxxxxxxxx>
---
v2: Only tested on aarch64. Split accelerator and its properties in
function get_qemu_accelerator() suggested by Drew
---
arm/run | 12 ++++++------
powerpc/run | 6 ++++--
s390x/run | 6 ++++--
scripts/arch-run.bash | 27 +++++++++++++++++----------
x86/run | 6 ++++--
5 files changed, 35 insertions(+), 22 deletions(-)
diff --git a/arm/run b/arm/run
index c6f25b8..80ffd39 100755
--- a/arm/run
+++ b/arm/run
@@ -10,10 +10,12 @@ if [ -z "$KUT_STANDALONE" ]; then
fi
processor="$PROCESSOR"
-accel=$(get_qemu_accelerator) ||
+accel_list=($(get_qemu_accelerator)) ||
exit $?
+ACCEL=${accel_list[0]}
+ACCEL_PROPS=${accel_list[1]}
-if [ "$accel" = "kvm" ]; then
+if [ "$ACCEL" = "kvm" ]; then
QEMU_ARCH=$HOST
fi
@@ -23,11 +25,9 @@ qemu=$(search_qemu_binary) ||
if [ "$QEMU" ] && [ -z "$ACCEL" ] &&
[ "$HOST" = "aarch64" ] && [ "$ARCH" = "arm" ] &&
[ "$(basename $QEMU)" = "qemu-system-arm" ]; then
- accel=tcg
+ ACCEL="tcg"
fi
-ACCEL=$accel
-
if ! $qemu -machine '?' | grep -q 'ARM Virtual Machine'; then
echo "$qemu doesn't support mach-virt ('-machine virt'). Exiting."
exit 2
@@ -72,7 +72,7 @@ if $qemu $M -device '?' | grep -q pci-testdev; then
pci_testdev="-device pci-testdev"
fi
-A="-accel $ACCEL"
+A="-accel $ACCEL$ACCEL_PROPS"
command="$qemu -nodefaults $M $A -cpu $processor $chr_testdev $pci_testdev"
command+=" -display none -serial stdio -kernel"
command="$(migration_cmd) $(timeout_cmd) $command"
diff --git a/powerpc/run b/powerpc/run
index ee38e07..8aa000b 100755
--- a/powerpc/run
+++ b/powerpc/run
@@ -9,8 +9,10 @@ if [ -z "$KUT_STANDALONE" ]; then
source scripts/arch-run.bash
fi
-ACCEL=$(get_qemu_accelerator) ||
+accel_list=($(get_qemu_accelerator)) ||
exit $?
+ACCEL=${accel_list[0]}
+ACCEL_PROPS=${accel_list[1]}
qemu=$(search_qemu_binary) ||
exit $?
@@ -21,7 +23,7 @@ if ! $qemu -machine '?' 2>&1 | grep 'pseries' > /dev/null; then
fi
M='-machine pseries'
-M+=",accel=$ACCEL"
+M+=",accel=$ACCEL$ACCEL_PROPS"
command="$qemu -nodefaults $M -bios $FIRMWARE"
command+=" -display none -serial stdio -kernel"
command="$(migration_cmd) $(timeout_cmd) $command"
diff --git a/s390x/run b/s390x/run
index f1111db..e5d23db 100755
--- a/s390x/run
+++ b/s390x/run
@@ -9,8 +9,10 @@ if [ -z "$KUT_STANDALONE" ]; then
source scripts/arch-run.bash
fi
-ACCEL=$(get_qemu_accelerator) ||
+accel_list=($(get_qemu_accelerator)) ||
exit $?
+ACCEL=${accel_list[0]}
+ACCEL_PROPS=${accel_list[1]}
qemu=$(search_qemu_binary) ||
exit $?
@@ -26,7 +28,7 @@ if [ "${1: -7}" = ".pv.bin" ] || [ "${TESTNAME: -3}" = "_PV" ] && [ "$MIGRATION"
fi
M='-machine s390-ccw-virtio'
-M+=",accel=$ACCEL"
+M+=",accel=$ACCEL$ACCEL_PROPS"
command="$qemu -nodefaults -nographic $M"
command+=" -chardev stdio,id=con0 -device sclpconsole,chardev=con0"
command+=" -kernel"
diff --git a/scripts/arch-run.bash b/scripts/arch-run.bash
index 51e4b97..12dabf9 100644
--- a/scripts/arch-run.bash
+++ b/scripts/arch-run.bash
@@ -412,22 +412,29 @@ hvf_available ()
get_qemu_accelerator ()
{
- if [ "$ACCEL" = "kvm" ] && ! kvm_available; then
+ local accel_list
+
+ accel_list[0]=${ACCEL%%,*}
+ accel_list[1]=${ACCEL#"${accel_list[0]}"}
+
+ if [ "${accel_list[0]}" = "kvm" ] && ! kvm_available; then
echo "KVM is needed, but not available on this host" >&2
return 2
fi
- if [ "$ACCEL" = "hvf" ] && ! hvf_available; then
+ if [ "${accel_list[0]}" = "hvf" ] && ! hvf_available; then
echo "HVF is needed, but not available on this host" >&2
return 2
fi
- if [ "$ACCEL" ]; then
- echo $ACCEL
- elif kvm_available; then
- echo kvm
- elif hvf_available; then
- echo hvf
- else
- echo tcg
+ if [ ! -n "${accel_list[0]}" ]; then
+ if kvm_available; then
+ accel_list[0]="kvm"
+ elif hvf_available; then
+ accel_list[0]="hvf"
+ else
+ accel_list[0]="tcg"
+ fi
fi
+
+ echo ${accel_list[*]}
}
diff --git a/x86/run b/x86/run
index 4d53b72..f0b0b4a 100755
--- a/x86/run
+++ b/x86/run
@@ -9,8 +9,10 @@ if [ -z "$KUT_STANDALONE" ]; then
source scripts/arch-run.bash
fi
-ACCEL=$(get_qemu_accelerator) ||
+accel_list=($(get_qemu_accelerator)) ||
exit $?
+ACCEL=${accel_list[0]}
+ACCEL_PROPS=${accel_list[1]}
qemu=$(search_qemu_binary) ||
exit $?
@@ -38,7 +40,7 @@ else
fi
command="${qemu} --no-reboot -nodefaults $pc_testdev -vnc none -serial stdio $pci_testdev"
-command+=" -machine accel=$ACCEL"
+command+=" -machine accel=$ACCEL$ACCEL_PROPS"
if [ "${CONFIG_EFI}" != y ]; then
command+=" -kernel"
fi
--
2.23.0
