From: Sean Christopherson <seanjc@google.com>
To: Jerry Lyu <jerry.lyu@open-hieco.net>
Cc: pbonzini@redhat.com, joerg.roedel@amd.com, kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: SVM: Do not warn on IGNNE MSR write
Date: Thu, 9 Jul 2026 06:32:12 -0700 [thread overview]
Message-ID: <ak-i3BW_hxLQSdaO@google.com> (raw)
In-Reply-To: <ak78MvlryP8vSPVe@zlvmac.local>
On Thu, Jul 09, 2026, Jerry Lyu wrote:
> > That said, KVM does effectively support the case where #IGGNE is not asserted, so
> > I think we can simply do this to avoid the useless logging?
>
> Yeah, that can work for the current case. However, if another guest
> initializes the IGNNE MSR with different value meanwhile never enables
> the IGNNE emulation, kvm will again print uselsss logging.
If you find the logging useless, just disable that class of logging entirely by
setting report_ignored_msrs=false, either when loading kvm.ko or by writing
/sys/module/kvm/parameters/report_ignored_msrs (it's writable by root even when
KVM is loaded).
prev parent reply other threads:[~2026-07-09 13:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-08 13:41 [PATCH] KVM: SVM: Do not warn on IGNNE MSR write Jerry Lyu
2026-07-08 13:50 ` Sean Christopherson
2026-07-09 1:41 ` Jerry Lyu
2026-07-09 7:26 ` Jerry Lyu
2026-07-09 13:32 ` Sean Christopherson [this message]
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