Re: [PATCH 1/3] qemu: Always assume QEMU_CAPS_REALTIME_MLOCK

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On Fri, Apr 12, 2019 at 10:46:39AM +0200, Michal Privoznik wrote:
The '-realtime mlock' cmd line argument was introduced in QEMU
commit v1.5.0-rc0~190 which matches minimal QEMU version we
require. Therefore, the capability will always be present.

Apparently, nearly none of our xml2argv test cases had the
capability hence slightly bigger change under qemuxml2argvdata/.

Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
src/qemu/qemu_capabilities.c                        |  1 -
src/qemu/qemu_capabilities.h                        |  2 +-
src/qemu/qemu_command.c                             | 13 +++----------
tests/qemucapabilitiesdata/caps_1.5.3.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_1.6.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_1.7.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.1.1.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.10.0.aarch64.xml  |  1 -
tests/qemucapabilitiesdata/caps_2.10.0.ppc64.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.10.0.x86_64.xml   |  1 -
tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.11.0.x86_64.xml   |  1 -
tests/qemucapabilitiesdata/caps_2.12.0.aarch64.xml  |  1 -
tests/qemucapabilitiesdata/caps_2.12.0.ppc64.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.12.0.s390x.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.12.0.x86_64.xml   |  1 -
tests/qemucapabilitiesdata/caps_2.4.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.5.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.6.0.aarch64.xml   |  1 -
tests/qemucapabilitiesdata/caps_2.6.0.ppc64.xml     |  1 -
tests/qemucapabilitiesdata/caps_2.6.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml     |  1 -
tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml     |  1 -
tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_2.9.0.ppc64.xml     |  1 -
tests/qemucapabilitiesdata/caps_2.9.0.s390x.xml     |  1 -
tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_3.0.0.ppc64.xml     |  1 -
tests/qemucapabilitiesdata/caps_3.0.0.riscv32.xml   |  1 -
tests/qemucapabilitiesdata/caps_3.0.0.riscv64.xml   |  1 -
tests/qemucapabilitiesdata/caps_3.0.0.s390x.xml     |  1 -
tests/qemucapabilitiesdata/caps_3.0.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_3.1.0.ppc64.xml     |  1 -
tests/qemucapabilitiesdata/caps_3.1.0.x86_64.xml    |  1 -
tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml   |  1 -
tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml   |  1 -
tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml    |  1 -
.../qemuxml2argvdata/aarch64-aavmf-virtio-mmio.args |  1 +
tests/qemuxml2argvdata/aarch64-acpi-uefi.args       |  1 +
tests/qemuxml2argvdata/aarch64-cpu-passthrough.args |  1 +
tests/qemuxml2argvdata/aarch64-gic-host.args        |  1 +

[..]

tests/qemuxml2argvdata/watchdog.args                |  1 +
tests/qemuxml2argvdata/x86-kvm-32-on-64.args        |  1 +
tests/qemuxml2argvtest.c                            |  5 ++---
609 files changed, 575 insertions(+), 51 deletions(-)

diff --git a/tests/qemuxml2argvdata/mlock-unsupported.args b/tests/qemuxml2argvdata/mlock-unsupported.args
index c347035698..aa41fb6eb8 100644
--- a/tests/qemuxml2argvdata/mlock-unsupported.args
+++ b/tests/qemuxml2argvdata/mlock-unsupported.args
@@ -12,6 +12,7 @@ QEMU_AUDIO_DRV=none \
-S \
-machine pc,accel=tcg,usb=off,dump-guest-core=off \
-m 214 \
+-realtime mlock=off \

This does not really belong to a 'mlock-unsupported' test.

-smp 1,sockets=1,cores=1,threads=1 \
-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
-display none \
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 498892c4fd..8b517d83aa 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -2399,9 +2399,8 @@ mymain(void)
            QEMU_CAPS_DEVICE_PCIE_ROOT_PORT,
            QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY);

-    DO_TEST("mlock-on", QEMU_CAPS_REALTIME_MLOCK);
-    DO_TEST_FAILURE("mlock-on", NONE);
-    DO_TEST("mlock-off", QEMU_CAPS_REALTIME_MLOCK);
+    DO_TEST("mlock-on", NONE);
+    DO_TEST("mlock-off", NONE);
    DO_TEST("mlock-unsupported", NONE);

Rather than keeping these, it would be nicer to use the DO_TEST_CAPS
tests. Provided for your convenience here:
https://www.redhat.com/archives/libvir-list/2019-April/msg00839.html
since I already started working on this in parallel (without grabbing a
lock - ironic, isn't it?)

To the rest:
Reviewed-by: Ján Tomko <jtomko@xxxxxxxxxx>

Jano

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