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Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion
From: |
Dan Williams |
Subject: |
Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion |
Date: |
Tue, 28 Nov 2017 10:03:25 -0800 |
On Fri, Nov 24, 2017 at 4:40 AM, Pankaj Gupta <address@hidden> wrote:
[..]
> 1] Expose vNVDIMM memory range to KVM guest.
>
> - Add flag in ACPI NFIT table for this new memory type. Do we need NVDIMM
> spec
> changes for this?
Not a flag, but a new "Address Range Type GUID". See section "5.2.25.2
System Physical Address (SPA) Range Structure" in the ACPI 6.2A
specification. Since it is a GUID we could define a Linux specific
type for this case, but spec changes would allow non-Linux hypervisors
to advertise a standard interface to guests.
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, (continued)
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Xiao Guangrong, 2017/11/22
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Dan Williams, 2017/11/23
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Paolo Bonzini, 2017/11/23
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Pankaj Gupta, 2017/11/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Paolo Bonzini, 2017/11/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Pankaj Gupta, 2017/11/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Paolo Bonzini, 2017/11/24
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion,
Dan Williams <=
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Pankaj Gupta, 2017/11/06
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Dan Williams, 2017/11/06
- Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion, Pankaj Gupta, 2017/11/07