Re: [Xen-devel] [PATCH v7 10/11] viridian: add implementation of synthetic timers

2019-03-15 Thread Paul Durrant
> -Original Message- > From: Jan Beulich [mailto:jbeul...@suse.com] > Sent: 15 March 2019 16:17 > To: Paul Durrant > Cc: Julien Grall ; Andrew Cooper > ; George Dunlap > ; Ian Jackson ; Roger Pau > Monne > ; Wei Liu ; Stefano Stabellini > ; > xen-devel ; Konrad Rzeszutek Wilk > ; Tim >

Re: [Xen-devel] [PATCH v7 10/11] viridian: add implementation of synthetic timers

2019-03-15 Thread Jan Beulich
>>> On 15.03.19 at 16:40, wrote: > So, AIUI the reason you wanted it added was that you wanted to avoid > multiple calls hvm_vcpu_has_pending_irq() from returning different intack > values? But looking again, this could easily happen if a higher irr bit gets > set between calls (which can appar

Re: [Xen-devel] [PATCH v7 10/11] viridian: add implementation of synthetic timers

2019-03-15 Thread Paul Durrant
> -Original Message- > From: Jan Beulich [mailto:jbeul...@suse.com] > Sent: 15 March 2019 09:53 > To: Paul Durrant > Cc: Julien Grall ; Andrew Cooper > ; Roger Pau Monne > ; Wei Liu ; George Dunlap > ; Ian > Jackson ; Stefano Stabellini > ; xen-devel de...@lists.xenproject.org>; Konrad

Re: [Xen-devel] [PATCH v7 10/11] viridian: add implementation of synthetic timers

2019-03-15 Thread Paul Durrant
> -Original Message- > From: Jan Beulich [mailto:jbeul...@suse.com] > Sent: 15 March 2019 09:53 > To: Paul Durrant > Cc: Julien Grall ; Andrew Cooper > ; Roger Pau Monne > ; Wei Liu ; George Dunlap > ; Ian > Jackson ; Stefano Stabellini > ; xen-devel de...@lists.xenproject.org>; Konrad

Re: [Xen-devel] [PATCH v7 10/11] viridian: add implementation of synthetic timers

2019-03-15 Thread Jan Beulich
>>> On 14.03.19 at 19:11, wrote: > This patch introduces an implementation of the STIMER0-15_CONFIG/COUNT MSRs > and hence a the first SynIC message source. > > The new (and documented) 'stimer' viridian enlightenment group may be > specified to enable this feature. > > While in the neighbourhoo