From: Paolo Bonzini <pbonzini@redhat.com>
To: Zdenek Kaspar <zkaspar82@gmail.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: rkrcmar@redhat.com
Subject: Re: [PATCH] KVM: VMX: require virtual NMI support
Date: Wed, 13 Sep 2017 22:34:26 +0200 [thread overview]
Message-ID: <16056526-1fc8-4ad8-5308-c16110d12e88@redhat.com> (raw)
In-Reply-To: <37c3939f-6c5e-1f88-5642-a5efb3ece1c4@gmail.com>
On 13/09/2017 19:23, Zdenek Kaspar wrote:
> On 03/27/2017 02:38 PM, Paolo Bonzini wrote:
>> Virtual NMIs are only missing in Prescott and Yonah chips. Both are obsolete
>> for virtualization usage---Yonah is 32-bit only even---so drop vNMI emulation.
>>
>> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
>> ---
>> arch/x86/kvm/vmx.c | 143 ++++++++++++++---------------------------------------
>> 1 file changed, 38 insertions(+), 105 deletions(-)
>
> This breaks virtualization on old Intel Core2 machines.
> Any chance to revert?
Already planned for 4.14 and future 4.13 stable kernels, but haven't
gotten round to it.
Paolo
next prev parent reply other threads:[~2017-09-13 20:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-27 12:38 [PATCH] KVM: VMX: require virtual NMI support Paolo Bonzini
2017-04-03 11:46 ` David Hildenbrand
2017-09-13 17:23 ` Zdenek Kaspar
2017-09-13 20:34 ` Paolo Bonzini [this message]
2017-10-25 8:12 ` Fabian Grünbichler
2017-10-25 8:40 ` Paolo Bonzini
2017-10-25 9:07 ` Fabian Grünbichler
2017-10-27 8:38 ` Fabian Grünbichler
2017-10-30 8:34 ` Paolo Bonzini
2017-10-30 8:52 ` Fabian Grünbichler
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