From: Christoph Hellwig <hch@infradead.org>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Kevin Wolf <kwolf@redhat.com>, Jan Kara <jack@suse.cz>,
xiaoguangrong eric <xiaoguangrong.eric@gmail.com>,
KVM list <kvm@vger.kernel.org>, Pankaj Gupta <pagupta@redhat.com>,
Stefan Hajnoczi <stefanha@gmail.com>,
David Hildenbrand <david@redhat.com>,
ross zwisler <ross.zwisler@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Qemu Developers <qemu-devel@nongnu.org>,
Linux MM <linux-mm@kvack.org>,
Stefan Hajnoczi <stefanha@redhat.com>,
linux-nvdimm <linux-nvdimm@ml01.01.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Nitesh Narayan Lal <nilal@redhat.com>
Subject: Re: [Qemu-devel] [RFC 2/2] KVM: add virtio-pmem driver
Date: Fri, 20 Oct 2017 09:06:44 -0700 [thread overview]
Message-ID: <20171020160644.GA27946@infradead.org> (raw)
In-Reply-To: <CAPcyv4hHjCpm4AnLz2SdtjNMasV182Cw-jA+Cv9DjmE1Fa26kA@mail.gmail.com>
On Fri, Oct 20, 2017 at 08:05:09AM -0700, Dan Williams wrote:
> Right, that's the same recommendation I gave.
>
> https://lists.gnu.org/archive/html/qemu-devel/2017-07/msg08404.html
>
> ...so maybe I'm misunderstanding your concern? It sounds like we're on
> the same page.
Yes, the above is exactly what I think we should do it. And in many
ways virtio seems overkill if we could just have a hypercall or doorbell
page as the queueing infrastructure in virtio shouldn't really be
needed.
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WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Kevin Wolf <kwolf@redhat.com>, Jan Kara <jack@suse.cz>,
xiaoguangrong eric <xiaoguangrong.eric@gmail.com>,
KVM list <kvm@vger.kernel.org>, Pankaj Gupta <pagupta@redhat.com>,
Stefan Hajnoczi <stefanha@gmail.com>,
David Hildenbrand <david@redhat.com>,
ross zwisler <ross.zwisler@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Qemu Developers <qemu-devel@nongnu.org>,
Linux MM <linux-mm@kvack.org>,
Stefan Hajnoczi <stefanha@redhat.com>,
linux-nvdimm <linux-nvdimm@ml01.01.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Nitesh Narayan Lal <nilal@redhat.com>
Subject: Re: [Qemu-devel] [RFC 2/2] KVM: add virtio-pmem driver
Date: Fri, 20 Oct 2017 09:06:44 -0700 [thread overview]
Message-ID: <20171020160644.GA27946@infradead.org> (raw)
In-Reply-To: <CAPcyv4hHjCpm4AnLz2SdtjNMasV182Cw-jA+Cv9DjmE1Fa26kA@mail.gmail.com>
On Fri, Oct 20, 2017 at 08:05:09AM -0700, Dan Williams wrote:
> Right, that's the same recommendation I gave.
>
> https://lists.gnu.org/archive/html/qemu-devel/2017-07/msg08404.html
>
> ...so maybe I'm misunderstanding your concern? It sounds like we're on
> the same page.
Yes, the above is exactly what I think we should do it. And in many
ways virtio seems overkill if we could just have a hypercall or doorbell
page as the queueing infrastructure in virtio shouldn't really be
needed.
next prev parent reply other threads:[~2017-10-20 16:06 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-12 15:50 [RFC 0/2] KVM "fake DAX" device flushing Pankaj Gupta
2017-10-12 15:50 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 15:50 ` Pankaj Gupta
2017-10-12 15:50 ` [RFC 1/2] pmem: Move reusable code to base header files Pankaj Gupta
2017-10-12 15:50 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 15:50 ` Pankaj Gupta
2017-10-12 20:42 ` Dan Williams
2017-10-12 20:42 ` [Qemu-devel] " Dan Williams
2017-10-12 20:42 ` Dan Williams
2017-10-12 21:27 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 21:27 ` Pankaj Gupta
[not found] ` <20171012155027.3277-1-pagupta-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-10-12 15:50 ` [RFC 2/2] KVM: add virtio-pmem driver Pankaj Gupta
2017-10-12 15:50 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 15:50 ` Pankaj Gupta
2017-10-12 15:50 ` Pankaj Gupta
2017-10-12 20:51 ` Dan Williams
2017-10-12 20:51 ` [Qemu-devel] " Dan Williams
2017-10-12 20:51 ` Dan Williams
2017-10-12 21:25 ` Pankaj Gupta
2017-10-12 21:25 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 21:25 ` Pankaj Gupta
2017-10-12 21:54 ` Dan Williams
2017-10-12 21:54 ` [Qemu-devel] " Dan Williams
2017-10-12 21:54 ` Dan Williams
[not found] ` <CAPcyv4gkri7t+3Unf0sc9AHMnz-v9G_qV_bJppLjUUNAn7drrQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-10-12 22:18 ` Pankaj Gupta
2017-10-12 22:18 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 22:18 ` Pankaj Gupta
2017-10-12 22:18 ` Pankaj Gupta
2017-10-12 22:27 ` Rik van Riel
2017-10-12 22:27 ` [Qemu-devel] " Rik van Riel
2017-10-12 22:27 ` Rik van Riel
2017-10-12 22:27 ` Rik van Riel
2017-10-12 22:27 ` Rik van Riel
2017-10-12 22:39 ` Pankaj Gupta
2017-10-12 22:39 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 22:39 ` Pankaj Gupta
2017-10-12 22:52 ` Pankaj Gupta
2017-10-12 22:52 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 22:52 ` Pankaj Gupta
2017-10-12 22:59 ` Dan Williams
2017-10-12 22:59 ` [Qemu-devel] " Dan Williams
2017-10-12 22:59 ` Dan Williams
2017-10-12 23:07 ` Pankaj Gupta
2017-10-12 23:07 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 23:07 ` Pankaj Gupta
2017-10-13 9:44 ` Stefan Hajnoczi
2017-10-13 9:44 ` [Qemu-devel] " Stefan Hajnoczi
2017-10-13 9:44 ` Stefan Hajnoczi
2017-10-13 10:48 ` Pankaj Gupta
2017-10-13 10:48 ` [Qemu-devel] " Pankaj Gupta
2017-10-13 10:48 ` Pankaj Gupta
[not found] ` <24301306.20068579.1507891695416.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-10-16 14:47 ` Stefan Hajnoczi
2017-10-16 14:47 ` [Qemu-devel] " Stefan Hajnoczi
2017-10-16 14:47 ` Stefan Hajnoczi
2017-10-16 14:47 ` Stefan Hajnoczi
2017-10-16 15:58 ` Dan Williams
2017-10-16 15:58 ` [Qemu-devel] " Dan Williams
2017-10-16 15:58 ` Dan Williams
2017-10-16 17:04 ` Pankaj Gupta
2017-10-16 17:04 ` [Qemu-devel] " Pankaj Gupta
2017-10-16 17:04 ` Pankaj Gupta
[not found] ` <20171013094431.GA27308-lxVrvc10SDRcolVlb+j0YCZi+YwRKgec@public.gmane.org>
2017-10-13 15:25 ` Dan Williams
2017-10-13 15:25 ` [Qemu-devel] " Dan Williams
2017-10-13 15:25 ` Dan Williams
2017-10-13 15:25 ` Dan Williams
[not found] ` <20171012155027.3277-3-pagupta-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-10-17 7:16 ` Christoph Hellwig
2017-10-17 7:16 ` [Qemu-devel] " Christoph Hellwig
2017-10-17 7:16 ` Christoph Hellwig
2017-10-17 7:16 ` Christoph Hellwig
2017-10-17 7:40 ` [Qemu-devel] " Pankaj Gupta
2017-10-17 7:40 ` Pankaj Gupta
2017-10-17 8:02 ` Christoph Hellwig
2017-10-17 8:02 ` Christoph Hellwig
2017-10-17 8:30 ` Pankaj Gupta
2017-10-17 8:30 ` Pankaj Gupta
2017-10-18 13:03 ` Stefan Hajnoczi
2017-10-18 13:03 ` Stefan Hajnoczi
2017-10-18 15:51 ` Dan Williams
2017-10-18 15:51 ` Dan Williams
[not found] ` <CAPcyv4h6aFkyHhh4R4DTznbSCLf9CuBoszk0Q1gB5EKNcp_SeQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-10-19 8:01 ` Stefan Hajnoczi
2017-10-19 8:01 ` Stefan Hajnoczi
2017-10-19 8:01 ` Stefan Hajnoczi
2017-10-19 8:01 ` Christoph Hellwig
2017-10-19 8:01 ` Christoph Hellwig
[not found] ` <20171019080149.GB10089-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2017-10-19 18:21 ` Dan Williams
2017-10-19 18:21 ` Dan Williams
2017-10-19 18:21 ` Dan Williams
[not found] ` <CAPcyv4j=Cdp68C15HddKaErpve2UGRfSTiL6bHiS=3gQybz9pg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-10-20 8:00 ` Christoph Hellwig
2017-10-20 8:00 ` Christoph Hellwig
2017-10-20 8:00 ` Christoph Hellwig
[not found] ` <20171020080049.GA25471-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2017-10-20 15:05 ` Dan Williams
2017-10-20 15:05 ` Dan Williams
2017-10-20 15:05 ` Dan Williams
2017-10-20 16:06 ` Christoph Hellwig [this message]
2017-10-20 16:06 ` Christoph Hellwig
2017-10-20 16:11 ` Dan Williams
2017-10-20 16:11 ` Dan Williams
2017-10-12 15:50 ` [RFC] QEMU: Add virtio pmem device Pankaj Gupta
2017-10-12 15:50 ` [Qemu-devel] " Pankaj Gupta
2017-10-12 15:50 ` Pankaj Gupta
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