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Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion
From: |
Rik van Riel |
Subject: |
Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion |
Date: |
Wed, 26 Jul 2017 17:27:33 -0400 |
On Wed, 2017-07-26 at 09:47 -0400, Pankaj Gupta wrote:
> >
> Just want to summarize here(high level):
>
> This will require implementing new 'virtio-pmem' device which
> presents
> a DAX address range(like pmem) to guest with read/write(direct
> access)
> & device flush functionality. Also, qemu should implement
> corresponding
> support for flush using virtio.
>
Alternatively, the existing pmem code, with
a flush-only block device on the side, which
is somehow associated with the pmem device.
I wonder which alternative leads to the least
code duplication, and the least maintenance
hassle going forward.
--
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- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, (continued)
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Jan Kara, 2017/07/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Pankaj Gupta, 2017/07/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Jan Kara, 2017/07/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Dan Williams, 2017/07/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Jan Kara, 2017/07/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Dan Williams, 2017/07/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Pankaj Gupta, 2017/07/25
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Dan Williams, 2017/07/25
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Rik van Riel, 2017/07/25
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Pankaj Gupta, 2017/07/26
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion,
Rik van Riel <=
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Dan Williams, 2017/07/26
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Rik van Riel, 2017/07/26
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Dan Williams, 2017/07/26