On 10/21/2009 05:42 PM, Gregory Haskins wrote:
I believe Avi, Michael, et. al. were in agreement with me on that design
choice. I believe the reason is that there is no good way to do EOI/ACK
feedback within the constraints of an eventfd pipe which would be
required for the legacy pin-type
Avi Kivity wrote:
On 10/21/2009 05:42 PM, Gregory Haskins wrote:
I believe Avi, Michael, et. al. were in agreement with me on that design
choice. I believe the reason is that there is no good way to do EOI/ACK
feedback within the constraints of an eventfd pipe which would be
required for the
On 10/22/2009 05:14 PM, Gregory Haskins wrote:
Yeah, I was thinking about that after I initially responded to Gleb.
I am thinking something along these lines:
Provide a function that lets you query a GSI for whether it supports
LOCKLESS or not. Then we can either do one of two things:
1)
Avi Kivity wrote:
On 10/22/2009 05:14 PM, Gregory Haskins wrote:
Yeah, I was thinking about that after I initially responded to Gleb.
I am thinking something along these lines:
Provide a function that lets you query a GSI for whether it supports
LOCKLESS or not. Then we can either do one
On Wed, Oct 21, 2009 at 10:34:53AM -0400, Gregory Haskins wrote:
IRQFD currently uses a deferred workqueue item to execute the injection
operation. It was originally designed this way because kvm_set_irq()
required the caller to hold the irq_lock mutex, and the eventfd callback
is invoked
Gleb Natapov wrote:
On Wed, Oct 21, 2009 at 10:34:53AM -0400, Gregory Haskins wrote:
IRQFD currently uses a deferred workqueue item to execute the injection
operation. It was originally designed this way because kvm_set_irq()
required the caller to hold the irq_lock mutex, and the eventfd
On Wed, Oct 21, 2009 at 11:34:51AM -0400, Gregory Haskins wrote:
Gleb Natapov wrote:
On Wed, Oct 21, 2009 at 10:34:53AM -0400, Gregory Haskins wrote:
IRQFD currently uses a deferred workqueue item to execute the injection
operation. It was originally designed this way because kvm_set_irq()
Gleb Natapov wrote:
On Wed, Oct 21, 2009 at 11:34:51AM -0400, Gregory Haskins wrote:
Gleb Natapov wrote:
On Wed, Oct 21, 2009 at 10:34:53AM -0400, Gregory Haskins wrote:
IRQFD currently uses a deferred workqueue item to execute the injection
operation. It was originally designed this way
