From: Ian Campbell <ian.campbell@citrix.com>
To: harry S <harry2845@gmail.com>
Cc: Xen-devel@lists.xen.org
Subject: Re: [PATCH v8 0/13] remove maintenance interrupts
Date: Wed, 15 Oct 2014 08:38:17 +0100 [thread overview]
Message-ID: <1413358697.10417.73.camel@citrix.com> (raw)
In-Reply-To: <CAKRHqxZfns9Eh_nhEf2yMwt20omtbAbBFWL5Oe4ms-bbk9fKZA@mail.gmail.com>
On Wed, 2014-10-15 at 12:12 +0800, harry S wrote:
>
>
> I've downloaded the no_maintenance_interrupts-v4 version of
This series was merged into the mainline xen quite a while ago now.
>
>
> The writer say that this patch removes any needs for maintenance
> interrupts for both hardware and software interrupts in Xen.
>
>
> I want to know if the no needs for maintenance for software interrupts
> means that sets HCR.TGE to 0 or Xen can handle the software interrupt
> by itself.
Maintenance/interrupt handling has nothing at all to do with HCR.TGE.
Xen does not set HCR.TGE, doing so would be prohibitively expensive
since it traps all sorts of things which would then need
emulating/handling.
Ian.
next prev parent reply other threads:[~2014-10-15 7:38 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-15 4:12 [PATCH v8 0/13] remove maintenance interrupts harry S
2014-10-15 7:38 ` Ian Campbell [this message]
-- strict thread matches above, loose matches on Subject: below --
2014-10-17 2:18 harry S
2014-10-17 7:35 ` Ian Campbell
2014-10-16 5:25 harry S
2014-10-16 9:11 ` Ian Campbell
2014-05-22 12:31 Stefano Stabellini
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