at 12:04 AM, Keith Busch wrote:
> On Thu, Jun 30, 2022 at 11:22:31AM +0800, Jinhao Fan wrote:
>> +static int nvme_init_sq_ioeventfd(NvmeSQueue *sq)
>> +{
>> +NvmeCtrl *n = sq->ctrl;
>> +uint16_t offset = sq->sqid << 3;
>> +int ret;
>> +
>> +ret = event_notifier_init(>notifier,
On Thu, Jun 30, 2022 at 11:22:31AM +0800, Jinhao Fan wrote:
> +static int nvme_init_sq_ioeventfd(NvmeSQueue *sq)
> +{
> +NvmeCtrl *n = sq->ctrl;
> +uint16_t offset = sq->sqid << 3;
> +int ret;
> +
> +ret = event_notifier_init(>notifier, 0);
> +if (ret < 0) {
> +return
Add property "ioeventfd" which is enabled by default. When this is
enabled, updates on the doorbell registers will cause KVM to signal
an event to the QEMU main loop to handle the doorbell updates.
Therefore, instead of letting the vcpu thread run both guest VM and
IO emulation, we now use the
