在 2019/8/20 下午11:27, Liu, Jiang 写道:
On Aug 20, 2019, at 11:24 PM, luoben wrote:
在 2019/8/16 上午12:45, Thomas Gleixner 写道:
On Thu, 15 Aug 2019, Ben Luo wrote:
if (vdev->ctx[vector].trigger) {
- free_irq(irq, vdev->ctx[vector].t
在 2019/8/20 下午11:22, Alex Williamson 写道:
On Tue, 20 Aug 2019 12:03:50 +0800
luoben wrote:
在 2019/8/20 上午4:51, Alex Williamson 写道:
On Thu, 15 Aug 2019 21:02:58 +0800
Ben Luo wrote:
Currently, VFIO takes a lot of free-then-request-irq actions whenever
a VM (with device passthru via VFIO
在 2019/8/20 上午4:51, Alex Williamson 写道:
On Thu, 15 Aug 2019 21:02:58 +0800
Ben Luo wrote:
Currently, VFIO takes a lot of free-then-request-irq actions whenever
a VM (with device passthru via VFIO) sets irq affinity or mask/unmask
irq. Those actions only change the cookie data of irqaction or
在 2019/8/15 下午10:58, Thomas Gleixner 写道:
Ben,
On Thu, 15 Aug 2019, Ben Luo wrote:
Sometimes, only the dev_id field of irqaction need to be changed.
E.g. KVM VM with device passthru via VFIO may switch irq injection
path between KVM irqfd and userspace eventfd. These two paths
share the same
在 2019/8/12 下午1:44, Yunsheng Lin 写道:
On 2019/8/8 20:07, Ben Luo wrote:
When userspace (e.g. qemu) triggers a switch between KVM
irqfd and userspace eventfd, only dev_id of irq action
(i.e. the "trigger" in this patch's context) will be
changed, but a free-then-request-irq action is taken in
cu
在 2019/8/9 上午3:56, Thomas Gleixner 写道:
On Thu, 8 Aug 2019, Ben Luo wrote:
+int update_irq_devid(unsigned int irq, void *dev_id, void *new_dev_id)
+{
+ struct irq_desc *desc = irq_to_desc(irq);
+ struct irqaction *action, **action_ptr;
+ unsigned long flags;
+
+ WARN(in_
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