linux-kernel - Re: [PATCH] KVM: nVMX: support descriptor table exits

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] [day] [month] [year] [list]

Message-ID: <CABdb737aL+H465vSG8cKmV0voRktaD22MOxt6eV-+9E9-vLzEA@mail.gmail.com>
Date:   Wed, 26 Oct 2016 10:02:23 +0200
From:   Ladi Prosek <lprosek@...hat.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     linux-kernel@...r.kernel.org, KVM list <kvm@...r.kernel.org>,
        Radim Krcmar <rkrcmar@...hat.com>
Subject: Re: [PATCH] KVM: nVMX: support descriptor table exits

On Tue, Oct 25, 2016 at 5:05 PM, Paolo Bonzini <pbonzini@...hat.com> wrote:
> These are never used by the host, but they can still be reflected to
> the guest.
>
> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>

This, together with Jan's invvpid patches, fixes the most obvious
Hyper-V on KVM blockers. A nested VM can start, although it gets stuck
in what looks like a page fault loop shortly after reset (still under
investigation).

Tested-by: Ladi Prosek <lprosek@...hat.com>