linux-kernel - Re: [PATCH v4 0/6] KVM: MMU: performance tweaks for heavy CR0.WP users

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Message-ID: <87dd030b-77e1-edc0-846e-da654bbfc152@grsecurity.net>
Date:   Wed, 22 Mar 2023 08:41:55 +0100
From:   Mathias Krause <minipli@...ecurity.net>
To:     kvm@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH v4 0/6] KVM: MMU: performance tweaks for heavy CR0.WP
 users

On 22.03.23 02:37, Mathias Krause wrote:
> Bonus rant^Wbug report:
> [VMs #GP'ing on WRMSR(IA32_PRED_CMD,...)]

I see that this is already a well known bug, fully analyzed and taken
care off:

https://lore.kernel.org/kvm/20230322011440.2195485-1-seanjc@google.com/

Thanks,
Mathias