From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Joerg Roedel <joerg.roedel-5C7GfCeVMHo@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 4/8] X86: export information about NPT to generic x86 code
Date: Sun, 27 Jan 2008 10:40:25 +0200 [thread overview]
Message-ID: <479C4379.8090005@qumranet.com> (raw)
In-Reply-To: <1201294393-22613-5-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org>
Joerg Roedel wrote:
> The generic x86 code has to know if the specific implementation uses Nested
> Paging. In the generic code Nested Paging is called Hardware Assisted Paging
> (HAP) to avoid confusion with (future) HAP implementations of other vendors.
> This patch exports the availability of HAP to the generic x86 code.
>
> int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
> +
> + bool (*hap_enabled)(void);
> };
>
>
Since the value doesn't change during the lifetime of the VM, it can be
a data field instead of a function. Or, if we find that npt/ept is
always a win, a static field in mmu.c.
--
error compiling committee.c: too many arguments to function
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next prev parent reply other threads:[~2008-01-27 8:40 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-25 20:53 [PATCH][RFC] SVM: Add Support for Nested Paging in AMD Fam16 CPUs Joerg Roedel
2008-01-25 20:53 ` [PATCH 3/8] SVM: add module parameter to disable Nested Paging Joerg Roedel
[not found] ` <1201294393-22613-4-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org>
2008-01-25 21:35 ` Anthony Liguori
[not found] ` <479A561B.8070009-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2008-01-25 22:10 ` Joerg Roedel
[not found] ` <20080125221029.GA23111-5C7GfCeVMHo@public.gmane.org>
2008-01-26 18:38 ` Avi Kivity
2008-01-26 1:47 ` [PATCH 3/8] SVM: add module parameter to disable NestedPaging Nakajima, Jun
[not found] ` <2D848F959C03D945A84E9EDE7F7BFE4274021D-7XlYjKTK0pM64kNsxIetb7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2008-01-26 7:25 ` Joerg Roedel
[not found] ` <20080126072556.GB21476-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2008-01-26 9:49 ` Alexey Eremenko
[not found] ` <7fac565a0801260149j7d6d48demfb49d2bb0d5a952-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-01-26 10:06 ` Joerg Roedel
2008-01-26 16:36 ` Anthony Liguori
2008-01-26 18:23 ` [kvm-devel] " Avi Kivity
[not found] ` <1201294393-22613-1-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org>
2008-01-25 20:53 ` [PATCH 1/8] SVM: move feature detection to hardware setup code Joerg Roedel
2008-01-25 20:53 ` [PATCH 2/8] SVM: add detection of Nested Paging feature Joerg Roedel
2008-01-25 20:53 ` [PATCH 4/8] X86: export information about NPT to generic x86 code Joerg Roedel
[not found] ` <1201294393-22613-5-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org>
2008-01-25 21:37 ` Anthony Liguori
[not found] ` <479A56B2.7010306-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2008-01-25 21:40 ` Anthony Liguori
2008-01-27 8:40 ` Avi Kivity [this message]
2008-01-25 20:53 ` [PATCH 5/8] MMU: make the __nonpaging_map function generic Joerg Roedel
2008-01-25 20:53 ` [PATCH 6/8] X86: export the load_pdptrs() function to modules Joerg Roedel
2008-01-25 20:53 ` [PATCH 7/8] MMU: add HAP support to the KVM MMU Joerg Roedel
2008-01-25 20:53 ` [PATCH 8/8] SVM: add support for Nested Paging Joerg Roedel
[not found] ` <1201294393-22613-9-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org>
2008-01-27 8:52 ` Avi Kivity
[not found] ` <479C464E.2060009-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-27 9:41 ` Joerg Roedel
[not found] ` <20080127094147.GA32677-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2008-01-27 9:51 ` Avi Kivity
[not found] ` <479C540A.8020003-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-27 10:05 ` Joerg Roedel
[not found] ` <20080127100517.GC32677-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2008-01-27 10:24 ` Avi Kivity
2008-01-25 21:32 ` [PATCH][RFC] SVM: Add Support for Nested Paging in AMD Fam16 CPUs Anthony Liguori
[not found] ` <479A5589.7030201-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2008-01-25 22:47 ` Joerg Roedel
2008-01-26 1:57 ` Nakajima, Jun
2008-01-27 8:57 ` Avi Kivity
[not found] ` <479C4763.1080104-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-27 9:51 ` Joerg Roedel
2008-01-28 3:20 ` Jeremy Fitzhardinge
[not found] ` <479D4A0C.5080208-TSDbQ3PG+2Y@public.gmane.org>
2008-01-28 11:08 ` Avi Kivity
2008-02-07 12:09 ` Joerg Roedel
2008-02-10 10:35 ` Avi Kivity
-- strict thread matches above, loose matches on Subject: below --
2008-02-07 12:47 KVM: add support for SVM Nested Paging Joerg Roedel
[not found] ` <1202388465-8657-1-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org>
2008-02-07 12:47 ` [PATCH 4/8] X86: export information about NPT to generic x86 code Joerg Roedel
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