linux-kernel - Re: [PATCH v9 0/7] KVM: x86: Allow Qemu/KVM to use PVH entry point

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:   Wed, 12 Dec 2018 21:39:02 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Maran Wilson <maran.wilson@...cle.com>
Cc:     x86@...nel.org, xen-devel@...ts.xenproject.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        pbonzini@...hat.com, jgross@...e.com, boris.ostrovsky@...cle.com,
        bp@...e.de, dave.hansen@...ux.intel.com, davem@...emloft.net,
        gregkh@...uxfoundation.org, hpa@...or.com, jpoimboe@...hat.com,
        kirill.shutemov@...ux.intel.com, luto@...nel.org,
        mchehab@...nel.org, mingo@...hat.com, rdunlap@...radead.org,
        tglx@...utronix.de, thomas.lendacky@....com, hch@...radead.org,
        roger.pau@...rix.com, rkrcmar@...hat.com
Subject: Re: [PATCH v9 0/7] KVM: x86: Allow Qemu/KVM to use PVH entry point

On Tue, Dec 11, 2018 at 11:29:21AM -0800, Maran Wilson wrote:
> Is your question about what options you need to provide to Qemu? Or is your
> question about the SW implementation choices?
> 
> Assuming the former...

Yeah, that's what I wanted to know. But looking at it, I'm booting
bzImage here just as quickly and as flexible so I don't see the
advantage of this new method for my use case here of booting kernels
in qemu.

But maybe there's a good use case where firmware is slow and one doesn't
really wanna noodle through it or when one does start a gazillion VMs
per second or whatever...

Thx.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.