RE: [PATCH 05/12] evtchn/sched: reject poll requests for unusable ports

2020-09-29 Thread Paul Durrant
> -Original Message- > From: Xen-devel On Behalf Of Jan > Beulich > Sent: 28 September 2020 11:59 > To: xen-devel@lists.xenproject.org > Cc: Andrew Cooper ; George Dunlap > ; Ian > Jackson ; Julien Grall ; Wei Liu > ; Stefano Stabellini > ; Dario Faggioli > Subject: [PATCH 05/12] evtch

Re: [PATCH 05/12] evtchn/sched: reject poll requests for unusable ports

2020-09-29 Thread Dario Faggioli
On Mon, 2020-09-28 at 12:58 +0200, Jan Beulich wrote: > Before and after XSA-342 there has been an asymmetry in how not > really > usable ports get treated in do_poll(): Ones beyond a certain boundary > (max_evtchns originally, valid_evtchns subsequently) did get refused > with -EINVAL, while lower

Re: [PATCH 05/12] evtchn/sched: reject poll requests for unusable ports

2020-09-29 Thread Julien Grall
Hi Jan, On 28/09/2020 11:58, Jan Beulich wrote: Before and after XSA-342 there has been an asymmetry in how not really usable ports get treated in do_poll(): Ones beyond a certain boundary (max_evtchns originally, valid_evtchns subsequently) did get refused with -EINVAL, while lower ones were ac