netdev - RE: [Patch v4 00/13] Add PCI pass-thru support to Hyper-V Confidential VMs

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, 19 Jan 2023 17:58:04 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     Wei Liu <wei.liu@...nel.org>, Borislav Petkov <bp@...en8.de>
CC:     "Michael Kelley (LINUX)" <mikelley@...rosoft.com>,
        "hpa@...or.com" <hpa@...or.com>, KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        "luto@...nel.org" <luto@...nel.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "lpieralisi@...nel.org" <lpieralisi@...nel.org>,
        "robh@...nel.org" <robh@...nel.org>, "kw@...ux.com" <kw@...ux.com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "arnd@...db.de" <arnd@...db.de>,
        "hch@...radead.org" <hch@...radead.org>,
        "m.szyprowski@...sung.com" <m.szyprowski@...sung.com>,
        "robin.murphy@....com" <robin.murphy@....com>,
        "thomas.lendacky@....com" <thomas.lendacky@....com>,
        "brijesh.singh@....com" <brijesh.singh@....com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        Tianyu Lan <Tianyu.Lan@...rosoft.com>,
        "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
        "sathyanarayanan.kuppuswamy@...ux.intel.com" 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        "ak@...ux.intel.com" <ak@...ux.intel.com>,
        "isaku.yamahata@...el.com" <isaku.yamahata@...el.com>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>,
        "jane.chu@...cle.com" <jane.chu@...cle.com>,
        "seanjc@...gle.com" <seanjc@...gle.com>,
        "tony.luck@...el.com" <tony.luck@...el.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
        "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>
Subject: RE: [Patch v4 00/13] Add PCI pass-thru support to Hyper-V
 Confidential VMs

> From: Wei Liu <wei.liu@...nel.org>
> Sent: Thursday, January 12, 2023 6:04 AM
> To: Borislav Petkov <bp@...en8.de>
> [...]
> On Mon, Jan 09, 2023 at 07:47:08PM +0100, Borislav Petkov wrote:
> > On Thu, Dec 01, 2022 at 07:30:18PM -0800, Michael Kelley wrote:
> > > This patch series adds support for PCI pass-thru devices to Hyper-V
> > > Confidential VMs (also called "Isolation VMs"). But in preparation, it
> > > first changes how private (encrypted) vs. shared (decrypted) memory is
> > > handled in Hyper-V SEV-SNP guest VMs. The new approach builds on the
> > > confidential computing (coco) mechanisms introduced in the 5.19 kernel
> > > for TDX support and significantly reduces the amount of Hyper-V specific
> > > code. Furthermore, with this new approach a proposed RFC patch set for
> > > generic DMA layer functionality[1] is no longer necessary.
> >
> > In any case, this is starting to get ready - how do we merge this?
> >
> > I apply the x86 bits and give Wei an immutable branch to add the rest of the
> > HyperV stuff ontop?
> 
> I can take all the patches if that's easier for you. I don't think
> anyone else is depending on the x86 patches in this series.
> 
> Giving me an immutable branch works too.
> 
> Thanks,
> Wei.
> > --
> > Regards/Gruss,
> >     Boris.

Hi Boris, Wei, any news on this?