From: Ian Campbell <Ian.Campbell@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: xen-devel <xen-devel@lists.xen.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
"zhenzhong.duan@oracle.com" <zhenzhong.duan@oracle.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Tamon Shiose <tamon.shiose@oracle.com>,
Feng Jin <joe.jin@oracle.com>
Subject: Re: [Xen-devel] [PATCH-v2] xen: Don't call arch_trigger_all_cpu_backtrace in dom0(pvm)
Date: Tue, 9 Apr 2013 17:36:14 +0100 [thread overview]
Message-ID: <1365525374.17014.22.camel@zakaz.uk.xensource.com> (raw)
In-Reply-To: <5162911202000078000CB38E@nat28.tlf.novell.com>
On Mon, 2013-04-08 at 08:42 +0100, Jan Beulich wrote:
> >>> On 07.04.13 at 07:54, Zhenzhong Duan <zhenzhong.duan@oracle.com> wrote:
> > nmi isn't supported in dom0, fallback to general all cpu backtrace code.
>
> Since when is sending NMIs not supported, and since when is this
> Dom0-specific? If you want to deal with this, you should do so
> properly: Special case sending NMIs in the respective Xen specific
> code (using VCPUOP_send_nmi), and carry this out in a way not
> dependent upon running (un)privileged.
You'd also need to implement the upcall support for receiving NMIs,
which IIRC isn't yet done for pvops.
Ian.
next prev parent reply other threads:[~2013-04-09 16:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-07 5:54 Zhenzhong Duan
2013-04-08 7:42 ` [Xen-devel] " Jan Beulich
2013-04-09 16:36 ` Ian Campbell [this message]
2013-05-15 8:40 ` Zhenzhong Duan
2013-05-15 10:21 ` Ian Campbell
2013-05-15 9:33 ` Stefan Bader
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