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From: Paolo Bonzini <pbonzini@redhat.com>
To: Barret Rhoden <brho@google.com>,
	Dan Williams <dan.j.williams@intel.com>,
	David Hildenbrand <david@redhat.com>,
	Dave Jiang <dave.jiang@intel.com>,
	Alexander Duyck <alexander.h.duyck@linux.intel.com>
Cc: linux-nvdimm@lists.01.org, x86@kernel.org, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org, jason.zeng@intel.com
Subject: Re: [PATCH v4 0/2] kvm: Use huge pages for DAX-backed files
Date: Thu, 12 Dec 2019 01:22:21 +0100
Message-ID: <473dbb9d-b2ab-31ba-48ac-3b8216be46de@redhat.com> (raw)
In-Reply-To: <20191211213207.215936-1-brho@google.com>

On 11/12/19 22:32, Barret Rhoden wrote:
> This patchset allows KVM to map huge pages for DAX-backed files.
> 
> I held previous versions in limbo while people were sorting out whether
> or not DAX pages were going to remain PageReserved and how that relates
> to KVM.
> 
> Now that that is sorted out (DAX pages are PageReserved, but they are
> not kvm_is_reserved_pfn(), and DAX pages are considered on a
> case-by-case basis for KVM), I can repost this.
> 
> v3 -> v4:
> v3: https://lore.kernel.org/lkml/20190404202345.133553-1-brho@google.com/
> - Rebased onto linus/master
> 
> v2 -> v3:
> v2: https://lore.kernel.org/lkml/20181114215155.259978-1-brho@google.com/
> - Updated Acks/Reviewed-by
> - Rebased onto linux-next
> 
> v1 -> v2:
> https://lore.kernel.org/lkml/20181109203921.178363-1-brho@google.com/
> - Updated Acks/Reviewed-by
> - Minor touchups
> - Added patch to remove redundant PageReserved() check
> - Rebased onto linux-next
> 
> RFC/discussion thread:
> https://lore.kernel.org/lkml/20181029210716.212159-1-brho@google.com/
> 
> Barret Rhoden (2):
>   mm: make dev_pagemap_mapping_shift() externally visible
>   kvm: Use huge pages for DAX-backed files
> 
>  arch/x86/kvm/mmu/mmu.c | 36 ++++++++++++++++++++++++++++++++----
>  include/linux/mm.h     |  3 +++
>  mm/memory-failure.c    | 38 +++-----------------------------------
>  mm/util.c              | 34 ++++++++++++++++++++++++++++++++++
>  4 files changed, 72 insertions(+), 39 deletions(-)
> 

Thanks, with the Acked-by already in place for patch 1 I can pick this up.

Paolo


      parent reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-11 21:32 Barret Rhoden
2019-12-11 21:32 ` [PATCH v4 1/2] mm: make dev_pagemap_mapping_shift() externally visible Barret Rhoden
2019-12-11 21:32 ` [PATCH v4 2/2] kvm: Use huge pages for DAX-backed files Barret Rhoden
2019-12-12  0:21   ` Paolo Bonzini
2019-12-12 12:22   ` David Hildenbrand
2019-12-12 16:31     ` Barret Rhoden
2019-12-12 12:33   ` Liran Alon
2019-12-12 16:54     ` Dan Williams
2019-12-12 17:39       ` Liran Alon
2019-12-12 17:59         ` Dan Williams
2019-12-12 18:32           ` Liran Alon
2019-12-12 17:03     ` Barret Rhoden
2019-12-12 17:34   ` Sean Christopherson
2019-12-12 17:37     ` Dan Williams
2019-12-12 19:16       ` Barret Rhoden
2019-12-12 19:48         ` Dan Williams
2019-12-12 20:08           ` Barret Rhoden
2019-12-12 17:45     ` Liran Alon
2019-12-12  0:22 ` Paolo Bonzini [this message]

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