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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: xen-devel <xen-devel@lists.xenproject.org>, Keir Fraser <keir@xen.org>
Subject: Re: [PATCH v6] x86/vlapic: don't silently accept bad vectors
Date: Mon, 6 Oct 2014 16:33:01 +0100	[thread overview]
Message-ID: <5432B62D.20500@citrix.com> (raw)
In-Reply-To: <5432D186020000780003C8B9@mail.emea.novell.com>

On 06/10/14 16:29, Jan Beulich wrote:
>>>> On 06.10.14 at 17:16, <andrew.cooper3@citrix.com> wrote:
>> On 06/10/14 16:11, Jan Beulich wrote:
>>> Vectors 0-15 are reserved, and a physical LAPIC - upon sending or
>>> receiving one - would generate an APIC error instead of doing the
>>> requested action. Make our emulation behave similarly.
>>>
>>> Signed-off-by: Jan Beulich <jbeulich@suse.com>
>> What was windows actually tripping up on?
> It sends one or more NMI IPIs when about to reboot (with, as
> mandated, the vector field being zero).
>
> Jan

Ah yes - that would do it.

~Andrew

  reply	other threads:[~2014-10-06 15:33 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-06 15:11 [PATCH v6] x86/vlapic: don't silently accept bad vectors Jan Beulich
2014-10-06 15:16 ` Andrew Cooper
2014-10-06 15:29   ` Jan Beulich
2014-10-06 15:33     ` Andrew Cooper [this message]
2014-10-06 15:44 ` Andrew Cooper

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