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xen-devel
[Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interfac
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To: |
Rik van Riel <riel@xxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal |
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From: |
Zachary Amsden <zach@xxxxxxxxxx> |
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Date: |
Mon, 13 Mar 2006 20:55:57 -0800 |
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Cc: |
Andrew Morton <akpm@xxxxxxxx>, Joshua LeVasseur <jtl@xxxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Pratap Subrahmanyam <pratap@xxxxxxxxxx>, Wim Coekaerts <wim.coekaerts@xxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxx>, Jack Lo <jlo@xxxxxxxxxx>, Dan Hecht <dhecht@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>, Christopher Li <chrisl@xxxxxxxxxx>, Virtualization Mailing List <virtualization@xxxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxx>, Anne Holler <anne@xxxxxxxxxx>, Jyothy Reddy <jreddy@xxxxxxxxxx>, Kip Macy <kmacy@xxxxxxxxxxx>, Ky Srinivasan <ksrinivasan@xxxxxxxxxx>, Leendert van Doorn <leendert@xxxxxxxxxxxxxx>, Dan Arai <arai@xxxxxxxxxx> |
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Tue, 14 Mar 2006 10:10:47 +0000 |
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<200603131758.k2DHwQM7005618@xxxxxxxxxxxxxxxxxxx> <441610DE.5060709@xxxxxxxxxx> <44164013.1080404@xxxxxxxxxx> <Pine.LNX.4.63.0603132304200.17874@xxxxxxxxxxxxxxxxxxxxxx> |
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Rik van Riel wrote:
On Mon, 13 Mar 2006, Zachary Amsden wrote:
About performance - I actually believe that it is possible to implement
VMI Linux in such a way that it actually has _better_ performance on Xen
than the current XenoLinux kernels.
How would VMI allow page table batching at fault time?
(one of the future optimizations that are probably worth
making for Xen)
This is exactly what we do. All page table transitions from P->NP or
P->P already require a flushing call (FlushTLB or InvalPage). The
remaining transitions, NP->P require explicit flushing, and we have
added the appropriate call sites to do so. It turns out, the external
MMU cache on Sparc provided exactly the required hook point in this case
- update_mmu_cache().
Zach
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- [Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, (continued)
- [Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, Jan Engelhardt
- [Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, Christoph Hellwig
- [Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, Zachary Amsden
- [Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, Joshua LeVasseur
- [Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, Andrew Morton
- [Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, Joshua LeVasseur
[Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, Sam Vilain
[Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, Anthony Liguori
[Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal, Anthony Liguori
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