On 22/09/2017 12:30, David Gibson wrote:
> On Fri, Sep 22, 2017 at 10:46:36AM +0200, Paolo Bonzini wrote:
>> On 15/09/2017 07:26, Michael Neuling wrote:
>>> On POWER9 DD2.1 and below, sometimes on a Hypervisor Data Storage
>>> Interrupt (HDSI) the HDSISR is not be updated at all.
>>>
>>> To work
On Fri, Sep 22, 2017 at 10:46:36AM +0200, Paolo Bonzini wrote:
> On 15/09/2017 07:26, Michael Neuling wrote:
> > On POWER9 DD2.1 and below, sometimes on a Hypervisor Data Storage
> > Interrupt (HDSI) the HDSISR is not be updated at all.
> >
> > To work around this we put a canary value into the
On 15/09/2017 07:26, Michael Neuling wrote:
> On POWER9 DD2.1 and below, sometimes on a Hypervisor Data Storage
> Interrupt (HDSI) the HDSISR is not be updated at all.
>
> To work around this we put a canary value into the HDSISR before
> returning to a guest and then check for this canary when
On Fri, Sep 15, 2017 at 03:26:14PM +1000, Michael Neuling wrote:
> On POWER9 DD2.1 and below, sometimes on a Hypervisor Data Storage
> Interrupt (HDSI) the HDSISR is not be updated at all.
>
> To work around this we put a canary value into the HDSISR before
> returning to a guest and then check
On POWER9 DD2.1 and below, sometimes on a Hypervisor Data Storage
Interrupt (HDSI) the HDSISR is not be updated at all.
To work around this we put a canary value into the HDSISR before
returning to a guest and then check for this canary when we take a
HDSI. If we find the canary on a HDSI, we
