On 2016年06月01日 18:49, Julien Grall wrote:
> Hi Stefano,
>
> On 01/06/16 10:54, Stefano Stabellini wrote:
>>> spin_is_locked does not work as you expect. The function will not
>>> tell you if
>>> the lock was taken by the current CPU, but if the lock was taken by
>>> *a* CPU.
>>>
>>> It would be po
Hi Stefano,
On 01/06/16 10:54, Stefano Stabellini wrote:
spin_is_locked does not work as you expect. The function will not tell you if
the lock was taken by the current CPU, but if the lock was taken by *a* CPU.
It would be possible to have CPU A calling this function and have CPU B with
the lo
On Tue, 31 May 2016, Julien Grall wrote:
> Hi Stefano,
>
> On 31/05/16 10:40, Stefano Stabellini wrote:
> > On Mon, 30 May 2016, Julien Grall wrote:
> > > ACPI can only be enabled in expert mode and will be a tech-preview for Xen
> > > 4.7. So I would revert the patch. SPIs will not be routed, bu
On Tue, May 31, 2016 at 10:40:13AM +0100, Stefano Stabellini wrote:
> On Mon, 30 May 2016, Julien Grall wrote:
> > (CC Wei Liu)
> >
> > Hi Stefano,
> >
> > On 30/05/2016 14:16, Stefano Stabellini wrote:
> > > On Fri, 27 May 2016, Julien Grall wrote:
> > > > Hello Shanker,
> > > >
> > > > On 27/0
Hi Stefano,
On 31/05/16 10:40, Stefano Stabellini wrote:
On Mon, 30 May 2016, Julien Grall wrote:
ACPI can only be enabled in expert mode and will be a tech-preview for Xen
4.7. So I would revert the patch. SPIs will not be routed, but it is better
than a deadlock.
I would also replace the pa
On Mon, 30 May 2016, Julien Grall wrote:
> (CC Wei Liu)
>
> Hi Stefano,
>
> On 30/05/2016 14:16, Stefano Stabellini wrote:
> > On Fri, 27 May 2016, Julien Grall wrote:
> > > Hello Shanker,
> > >
> > > On 27/05/16 01:39, Shanker Donthineni wrote:
> > > > Commit 9d77b3c01d1261c (Configure SPI inte
On 2016/5/31 3:45, Julien Grall wrote:
> (CC Wei Liu)
>
> Hi Stefano,
>
> On 30/05/2016 14:16, Stefano Stabellini wrote:
>> On Fri, 27 May 2016, Julien Grall wrote:
>>> Hello Shanker,
>>>
>>> On 27/05/16 01:39, Shanker Donthineni wrote:
Commit 9d77b3c01d1261c (Configure SPI interrupt type
(CC Wei Liu)
Hi Stefano,
On 30/05/2016 14:16, Stefano Stabellini wrote:
On Fri, 27 May 2016, Julien Grall wrote:
Hello Shanker,
On 27/05/16 01:39, Shanker Donthineni wrote:
Commit 9d77b3c01d1261c (Configure SPI interrupt type and route to
Dom0 dynamically) causing dead loop inside the spinlo
On Fri, 27 May 2016, Julien Grall wrote:
> Hello Shanker,
>
> On 27/05/16 01:39, Shanker Donthineni wrote:
> > Commit 9d77b3c01d1261c (Configure SPI interrupt type and route to
> > Dom0 dynamically) causing dead loop inside the spinlock function.
> > Note that spinlocks in XEN are not recursive. R
Hello Shanker,
On 27/05/16 01:39, Shanker Donthineni wrote:
Commit 9d77b3c01d1261c (Configure SPI interrupt type and route to
Dom0 dynamically) causing dead loop inside the spinlock function.
Note that spinlocks in XEN are not recursive. Re-acquiring a spinlock
that has already held by calling C
Commit 9d77b3c01d1261c (Configure SPI interrupt type and route to
Dom0 dynamically) causing dead loop inside the spinlock function.
Note that spinlocks in XEN are not recursive. Re-acquiring a spinlock
that has already held by calling CPU leads to deadlock. This happens
whenever dom0 does writes to
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