linux-kernel - Re: [PATCH 2/9] KVM: x86: Emulate triple fault shutdown if RSM emulation fails

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 10 Jun 2021 15:28:04 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        syzbot+fb0b6a7e8713aeb0319c@...kaller.appspotmail.com
Subject: Re: [PATCH 2/9] KVM: x86: Emulate triple fault shutdown if RSM
 emulation fails

On Thu, Jun 10, 2021, Paolo Bonzini wrote:
> On 10/06/21 10:26, Vitaly Kuznetsov wrote:
> > So should we actually have X86EMUL_CONTINUE when we queue
> > KVM_REQ_TRIPLE_FAULT here?
> 
> Yes...
> 
> > (Initially, my comment was supposed to be 'why don't you add
> > TRIPLE_FAULT to smm selftest?' but the above overshadows it)
> 
> ... and a tenth patch to add a selftest would be nice to have indeed.

Yes, I've been remiss in writing/modifying tests, I'll prioritize that once I've
dug myself out of the rabbit holes I wandered into via the vCPU RESET/INIT series.