From: Avi Kivity <avi@redhat.com>
To: Andre Przywara <andre.przywara@amd.com>
Cc: kvm@vger.kernel.org, aliguori@us.ibm.com
Subject: Re: [PATCH] introduce module parameter for ignoring unknown MSRs accesses
Date: Thu, 25 Jun 2009 13:47:59 +0300 [thread overview]
Message-ID: <4A4355DF.7000805@redhat.com> (raw)
In-Reply-To: <1245926209-32280-1-git-send-email-andre.przywara@amd.com>
On 06/25/2009 01:36 PM, Andre Przywara wrote:
> KVM will inject a #GP into the guest if that tries to access unhandled
> MSRs. This will crash many guests. Although it would be the correct
> way to actually handle these MSRs, we introduce a runtime switchable
> module param called "ignore_msrs" (defaults to 0). If this is Y, unknown
> MSR reads will return 0, while MSR writes are simply dropped. In both cases
> we print a message to dmesg to inform the user about that.
> You can change the behaviour at any time by saying:
> # echo 1> /sys/modules/kvm/parameters/ignore_msrs
>
>
Applied, thanks.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-06-25 10:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-22 21:47 [PATCH 2/2] introduce -cpu host target Andre Przywara
2009-06-23 10:04 ` Avi Kivity
2009-06-24 9:54 ` Avi Kivity
2009-06-24 11:04 ` Andre Przywara
2009-06-24 11:26 ` Avi Kivity
2009-06-25 10:36 ` [PATCH] introduce module parameter for ignoring unknown MSRs accesses Andre Przywara
2009-06-25 10:47 ` Avi Kivity [this message]
2009-06-24 16:43 ` [Qemu-devel] Re: [PATCH 2/2] introduce -cpu host target Jamie Lokier
2009-06-24 17:37 ` Filip Navara
2009-06-24 17:46 ` Avi Kivity
2009-06-24 17:59 ` Filip Navara
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