|
xen-devel
[Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while
|
To: |
Avi Kivity <avi@xxxxxxxxxx> |
|
Subject: |
[Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking |
|
From: |
Andi Kleen <andi@xxxxxxxxxxxxxx> |
|
Date: |
Wed, 14 Sep 2011 21:34:37 +0200 |
|
Cc: |
Don Zickus <dzickus@xxxxxxxxxx>, Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Marcelo Tosatti <mtosatti@xxxxxxxxxx>, Nick Piggin <npiggin@xxxxxxxxx>, KVM <kvm@xxxxxxxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Andi Kleen <andi@xxxxxxxxxxxxxx>, Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|
Delivery-date: |
Wed, 14 Sep 2011 12:35:17 -0700 |
|
Envelope-to: |
www-data@xxxxxxxxxxxxxxxxxxx |
|
In-reply-to: |
<4E70FFDD.80405@xxxxxxxxxx> |
|
List-help: |
<mailto:xen-devel-request@lists.xensource.com?subject=help> |
|
List-id: |
Xen developer discussion <xen-devel.lists.xensource.com> |
|
List-post: |
<mailto:xen-devel@lists.xensource.com> |
|
List-subscribe: |
<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
|
List-unsubscribe: |
<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
|
References: |
<20110907165203.GQ6838@xxxxxxxxxx> <4E67A551.4000502@xxxxxxxxxx> <20110913184044.GN5795@xxxxxxxxxx> <20110913190320.GR7761@xxxxxxxxxxxxxxxxxx> <20110913192152.GO5795@xxxxxxxxxx> <4E7050F7.3000208@xxxxxxxxxx> <20110914144926.GU7761@xxxxxxxxxxxxxxxxxx> <4E70C1BE.7060209@xxxxxxxxxx> <20110914172838.GV7761@xxxxxxxxxxxxxxxxxx> <4E70FFDD.80405@xxxxxxxxxx> |
|
Sender: |
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
|
User-agent: |
Mutt/1.4.2.2i |
On Wed, Sep 14, 2011 at 10:26:21PM +0300, Avi Kivity wrote:
> On 09/14/2011 08:28 PM, Andi Kleen wrote:
> >> If an NMI hits in an interrupt handler, or in the "after hlt" section
> >> before the write-to-last-nmi-rip, then we'll see that %rip has changed.
> >> If it hits after the write-to-last-nmi-rip instruction (or in the hlt
> >> itself), then we'll also see that %rip has changed, due to the effect of
> >> that instruction.
> >
> >It won't handle multiple NMIs in halt. I assume that's reasonable common.
> >
>
> Why not?
They all have the same original RIPs and there is no way to distingush
them.
-Andi
--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
Home