From: David Vrabel <david.vrabel@citrix.com>
To: Juergen Gross <jgross@suse.com>, <linux-kernel@vger.kernel.org>,
<xen-devel@lists.xensource.com>, <konrad.wilk@oracle.com>,
<boris.ostrovsky@oracle.com>, <x86@kernel.org>,
<tglx@linutronix.de>, <mingo@redhat.com>, <hpa@zytor.com>,
<andrew.cooper3@citrix.com>
Subject: Re: [PATCH V4 00/10] xen: Switch to virtual mapped linear p2m list
Date: Mon, 1 Dec 2014 11:31:57 +0000 [thread overview]
Message-ID: <547C51AD.8070904@citrix.com> (raw)
In-Reply-To: <1417172039-8627-1-git-send-email-jgross@suse.com>
On 28/11/14 10:53, Juergen Gross wrote:
> Paravirtualized kernels running on Xen use a three level tree for
> translation of guest specific physical addresses to machine global
> addresses. This p2m tree is used for construction of page table
> entries, so the p2m tree walk is performance critical.
>
> By using a linear virtual mapped p2m list accesses to p2m elements
> can be sped up while even simplifying code. To achieve this goal
> some p2m related initializations have to be performed later in the
> boot process, as the final p2m list can be set up only after basic
> memory management functions are available.
What are the results of the testing I asked for?
If Konrad or Boris are happy with this series I think it can go into 3.19.
David
next prev parent reply other threads:[~2014-12-01 11:32 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-28 10:53 [PATCH V4 00/10] xen: Switch to virtual mapped linear p2m list Juergen Gross
2014-11-28 10:53 ` [PATCH V4 1/9] xen: fix some style issues in p2m.c Juergen Gross
2014-11-28 10:53 ` [PATCH V4 2/9] xen: Make functions static Juergen Gross
2014-11-28 10:53 ` [PATCH V4 03/10] xen: use common page allocation function in p2m.c Juergen Gross
2014-11-28 10:53 ` [PATCH V4 04/10] xen: Delay remapping memory of pv-domain Juergen Gross
2014-11-28 10:53 ` [PATCH V4 05/10] xen: Delay m2p_override initialization Juergen Gross
2014-11-28 10:53 ` [PATCH V4 06/10] xen: Delay invalidating extra memory Juergen Gross
2014-11-28 10:53 ` [PATCH V4 07/10] x86: Introduce function to get pmd entry pointer Juergen Gross
2014-11-28 10:53 ` [PATCH V4 08/10] xen: Hide get_phys_to_machine() to be able to tune common path Juergen Gross
2014-11-28 10:53 ` [PATCH V4 09/10] xen: switch to linear virtual mapped sparse p2m list Juergen Gross
2014-11-28 10:53 ` [PATCH V4 10/10] xen: Speed up set_phys_to_machine() by using read-only mappings Juergen Gross
2014-12-01 11:31 ` David Vrabel [this message]
2014-12-01 12:54 ` [PATCH V4 00/10] xen: Switch to virtual mapped linear p2m list Juergen Gross
2014-12-02 18:54 ` Konrad Rzeszutek Wilk
2014-12-04 15:44 ` [Xen-devel] " David Vrabel
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