linux-kernel - Re: [Qemu-devel] [PATCH v8] kvm: notify host when the guest is panicked

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 15 Aug 2012 14:42:20 +0300
From:	Yan Vugenfirer <yvugenfi@...hat.com>
To:	Gleb Natapov <gleb@...hat.com>
Cc:	Anthony Liguori <anthony@...emonkey.ws>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	kvm list <kvm@...r.kernel.org>,
	Jan Kiszka <jan.kiszka@...mens.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	qemu-devel <qemu-devel@...gnu.org>, Avi Kivity <avi@...hat.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [Qemu-devel] [PATCH v8] kvm: notify host when the guest is panicked


On Aug 15, 2012, at 12:56 PM, Gleb Natapov wrote:

> On Tue, Aug 14, 2012 at 02:35:34PM -0500, Anthony Liguori wrote:
>>> Do you consider allowing support for Windows as overengineering?
>> 
>> I don't think there is a way to hook BSOD on Windows so attempting to
>> engineer something that works with Windows seems odd, no?
>> 
> Yan says in other email that is is possible to register a bugcheck callback.
> 

Here you go - http://msdn.microsoft.com/en-us/library/windows/hardware/ff553105(v=vs.85).aspx
Already done in virtio-net for two reasons: 1. we could configure virtio-net to notify QEMU in a hacky way (write 1 to VIRTIO_PCI_ISR register) that there was a bugckeck .It was very useful debugging complex WHQL issues that involved host networking. 2. Store additional information (for example time stamps of last receive packet, last interrupt and etc) in crash dump.

Yan.

> --
> 			Gleb.
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@...r.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/