linux-kernel - Re: [PATCH] kvm: rename HINTS_DEDICATED to KVM_HINTS

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]

Message-ID: <0764c230-3f84-36a5-ad89-fc8dd318d1e4@redhat.com>
Date:   Fri, 18 May 2018 19:18:57 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Eduardo Habkost <ehabkost@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>
Cc:     linux-kernel@...r.kernel.org,
        Radim Krčmář <rkrcmar@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        kvm@...r.kernel.org, linux-doc@...r.kernel.org,
        qemu-devel@...gnu.org
Subject: Re: [PATCH] kvm: rename HINTS_DEDICATED to KVM_HINTS_REALTIME

On 18/05/2018 19:13, Eduardo Habkost wrote:
>> As much as we'd like to be helpful and validate input, you need a real
>> time host too. I'm not sure how we'd find out - I suggest we do not
>> bother for now.
> I'm worried that people will start enabling the flag in all kinds
> of scenarios where the guarantees can't be kept, and make the
> meaning of the flag in practice completely different from its
> documented meaning.

I don't think we should try to detect anything.  As far as QEMU is
concerned, it's mostly garbage in, garbage out when it comes to invalid
configurations.  It's just a bit, and using it in invalid configurations
is okay if you're doing it (for example) for debugging.

Paolo