[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Xen-devel] [PATCH 23/25] argo: signal x86 HVM and ARM via VIRQ
- To: Christopher Clark <christopher.w.clark@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Julien Grall <Julien.Grall@xxxxxxx>
- Date: Sun, 2 Dec 2018 19:55:25 +0000
- Accept-language: en-US
- Authentication-results: spf=none (sender IP is ) smtp.mailfrom=Julien.Grall@xxxxxxx;
- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, Ross Philipson <ross.philipson@xxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Jason Andryuk <jandryuk@xxxxxxxxx>, Ian Jackson <ian.jackson@xxxxxxxxxxxxx>, James McKenzie <voreekf@xxxxxxxxxxxxx>, Tim Deegan <tim@xxxxxxx>, Daniel Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>, Rich Persaud <persaur@xxxxxxxxx>, Paul Durrant <paul.durrant@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, nd <nd@xxxxxxx>, Eric Chanudet <eric.chanudet@xxxxxxxxx>
- Delivery-date: Sun, 02 Dec 2018 19:55:48 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Nodisclaimer: True
- Spamdiagnosticmetadata: NSPM
- Spamdiagnosticoutput: 1:99
- Thread-index: AQHUiRX60Kgt7BHW/Umz3s1jCXIkbqVr378A
- Thread-topic: [PATCH 23/25] argo: signal x86 HVM and ARM via VIRQ
Hi,
On 01/12/2018 01:33, Christopher Clark wrote:
> * x86 PV domains are notified via event channel.
>
> PV guests are known to have the event channel software present in the guest
> kernel, so it is fine to depend on and use it.
>
> * x86 HVM domains and all ARM domains are notified via VIRQ.
>
> The intent is to remove the requirement for event channel software to be
> installed within these guests in order to use Argo. VIRQ signalling is also
> the method that has been in use for the longest period with this hypercall
> in both XenClient and OpenXT.
I am a bit confused. vIRQs are based on event channel, so how do you
remove the requirement on event channel?
Cheers,
--
Julien Grall
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel
|
