Re: [PATCH v2 08/15] qemu_validate: Check if QEMU's capable of setting iothread pool size

Now that we have a capability that reflects whether QEMU is capable of setting iothread pool size, let's introduce a validator check to make sure users are not trying to use this feature with QEMU that doesn't support it. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; Reviewed-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- src/qemu/qemu_validate.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c index 9b6245e6d7..7d11ae2c92 100644 --- a/src/qemu/qemu_validate.c +++ b/src/qemu/qemu_validate.c @@ -384,6 +384,27 @@ qemuValidateDomainDefCpu(virQEMUDriver *driver, } +static int +qemuValidateDomainDefIOThreads(const virDomainDef *def, + virQEMUCaps *qemuCaps) +{ + size_t i; + + for (i = 0; i < def->niothreadids; i++) { + virDomainIOThreadIDDef *iothread = def->iothreadids[i]; + + if ((iothread->thread_pool_min != -1 || iothread->thread_pool_max != -1) && + !virQEMUCapsGet(qemuCaps, QEMU_CAPS_IOTHREAD_THREAD_POOL_MAX)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("thread_pool_min and thread_pool_max is not supported by this QEMU binary")); + return -1; + }