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From: "Durrant, Paul" <xadimgnik@gmail.com>
To: Jan Beulich <jbeulich@suse.com>,
	"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
	"Paul Durrant" <paul@xen.org>,
	"Roger Pau Monné" <roger.pau@citrix.com>
Subject: Re: [PATCH v7 11/14] AMD/IOMMU: replace all-contiguous page tables by superpage mappings
Date: Fri, 22 Jul 2022 18:02:43 +0100	[thread overview]
Message-ID: <67765d28-a4e7-2461-8c4b-87e039e113ff@gmail.com> (raw)
In-Reply-To: <718906a5-8c18-530a-89f5-02e2a2efb211@suse.com>

On 05/07/2022 13:48, Jan Beulich wrote:
> When a page table ends up with all contiguous entries (including all
> identical attributes), it can be replaced by a superpage entry at the
> next higher level. The page table itself can then be scheduled for
> freeing.
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

Reviewed-by: Paul Durrant <paul@xen.org>


  reply	other threads:[~2022-07-22 17:03 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-05 12:41 [PATCH v7 00/14] IOMMU: superpage support when not sharing pagetables Jan Beulich
2022-07-05 12:43 ` [PATCH v7 01/14] iommu: add preemption support to iommu_{un,}map() Jan Beulich
2022-07-22 16:31   ` Durrant, Paul
2022-07-05 12:44 ` [PATCH v7 02/14] IOMMU/x86: perform PV Dom0 mappings in batches Jan Beulich
2022-07-22 16:36   ` Durrant, Paul
2022-07-05 12:44 ` [PATCH v7 03/14] IOMMU/x86: support freeing of pagetables Jan Beulich
2022-07-22 16:44   ` Durrant, Paul
2022-07-05 12:45 ` [PATCH v7 04/14] IOMMU/x86: new command line option to suppress use of superpage mappings Jan Beulich
2022-07-07  2:26   ` Tian, Kevin
2022-07-22 16:46   ` Durrant, Paul
2022-07-05 12:45 ` [PATCH v7 05/14] AMD/IOMMU: allow " Jan Beulich
2022-07-22 16:48   ` Durrant, Paul
2022-07-05 12:46 ` [PATCH v7 06/14] VT-d: " Jan Beulich
2022-07-22 16:51   ` Durrant, Paul
2022-07-05 12:47 ` [PATCH v7 07/14] x86: introduce helper for recording degree of contiguity in page tables Jan Beulich
2022-07-22 16:54   ` Durrant, Paul
2022-07-05 12:47 ` [PATCH v7 08/14] IOMMU/x86: prefill newly allocate " Jan Beulich
2022-07-22 16:56   ` Durrant, Paul
2022-07-05 12:47 ` [PATCH v7 09/14] AMD/IOMMU: free all-empty " Jan Beulich
2022-07-22 16:58   ` Durrant, Paul
2022-07-05 12:48 ` [PATCH v7 10/14] VT-d: " Jan Beulich
2022-07-22 17:00   ` Durrant, Paul
2022-07-05 12:48 ` [PATCH v7 11/14] AMD/IOMMU: replace all-contiguous page tables by superpage mappings Jan Beulich
2022-07-22 17:02   ` Durrant, Paul [this message]
2022-07-05 12:48 ` [PATCH v7 12/14] VT-d: " Jan Beulich
2022-07-22 17:09   ` Durrant, Paul
2022-07-05 12:49 ` [PATCH v7 13/14] IOMMU/x86: add perf counters for page table splitting / coalescing Jan Beulich
2022-07-22 17:09   ` Durrant, Paul
2022-07-05 12:49 ` [PATCH v7 14/14] VT-d: fold dma_pte_clear_one() into its only caller Jan Beulich
2022-07-22 17:11   ` Durrant, Paul
2022-07-05 12:51 ` [PATCH v7 00/14] IOMMU: superpage support when not sharing pagetables Jan Beulich
2022-07-07  6:20 ` Jan Beulich

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