From: Avi Kivity <avi@redhat.com>
To: Andre Przywara <andre.przywara@amd.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: allow bit 10 to be cleared in MSR_IA32_MC4_CTL
Date: Thu, 25 Mar 2010 14:28:33 +0200 [thread overview]
Message-ID: <4BAB56F1.20509@redhat.com> (raw)
In-Reply-To: <1269449202-8008-1-git-send-email-andre.przywara@amd.com>
On 03/24/2010 06:46 PM, Andre Przywara wrote:
> There is a quirk for AMD K8 CPUs in many Linux kernels (see
> arch/x86/kernel/cpu/mcheck/mce.c:__mcheck_cpu_apply_quirks()) that
> clears bit 10 in that MCE related MSR. KVM can only cope with all
> zeros or all ones, so it will inject a #GP into the guest, which
> will let it panic.
> So lets add a quirk to the quirk and ignore this single cleared bit.
> This fixes -cpu kvm64 on all machines and -cpu host on K8 machines
> with some guest Linux kernels.
>
Applied, thanks.
--
error compiling committee.c: too many arguments to function
prev parent reply other threads:[~2010-03-25 12:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-24 16:46 [PATCH] KVM: allow bit 10 to be cleared in MSR_IA32_MC4_CTL Andre Przywara
2010-03-25 12:28 ` Avi Kivity [this message]
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